<?xml version="1.0" encoding="us-ascii"?>
<!-- XBRL Generated with XBRLMark Copyright (C) by RR Donnelley -->
<!-- Based on XBRL 2.1 -->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" targetNamespace="http://sifco.com/20120930" xmlns:sif="http://sifco.com/20120930" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:us-types="http://fasb.org/us-types/2012-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://sifco.com/role/ValuationAndQualifyingAccounts" id="ValuationAndQualifyingAccounts">
        <link:definition>0301 - Schedule - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/ValuationAndQualifyingAccountsDetails" id="ValuationAndQualifyingAccountsDetails">
        <link:definition>0701 - Schedule - Valuation and Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummarizedQuarterlyResultsOfOperationsDetails" id="SummarizedQuarterlyResultsOfOperationsDetails">
        <link:definition>0613 - Disclosure - Summarized Quarterly Results of Operations (Unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummarizedQuarterlyResultsOfOperationsTables" id="SummarizedQuarterlyResultsOfOperationsTables">
        <link:definition>0513 - Disclosure - Summarized Quarterly Results of Operations (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummarizedQuarterlyResultsOfOperations" id="SummarizedQuarterlyResultsOfOperations">
        <link:definition>0213 - Disclosure - Summarized Quarterly Results of Operations (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
        <link:definition>0210 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessSegmentsDetailsTextual" id="BusinessSegmentsDetailsTextual">
        <link:definition>06111 - Disclosure - Business Segments (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/CommitmentsAndContingenciesDetailsTextual" id="CommitmentsAndContingenciesDetailsTextual">
        <link:definition>06101 - Disclosure - Commitments and Contingencies (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/CommitmentsAndContingenciesTables" id="CommitmentsAndContingenciesTables">
        <link:definition>0510 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/CommitmentsAndContingenciesDetails" id="CommitmentsAndContingenciesDetails">
        <link:definition>0610 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails9" id="RetirementBenefitPlansDetails9">
        <link:definition>060809 - Disclosure - Retirement Benefit Plans (Details 9)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails8" id="RetirementBenefitPlansDetails8">
        <link:definition>060808 - Disclosure - Retirement Benefit Plans (Details 8)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails7" id="RetirementBenefitPlansDetails7">
        <link:definition>060807 - Disclosure - Retirement Benefit Plans (Details 7)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails6" id="RetirementBenefitPlansDetails6">
        <link:definition>060806 - Disclosure - Retirement Benefit Plans (Details 6)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails5" id="RetirementBenefitPlansDetails5">
        <link:definition>060805 - Disclosure - Retirement Benefit Plans (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails4" id="RetirementBenefitPlansDetails4">
        <link:definition>060804 - Disclosure - Retirement Benefit Plans (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails3" id="RetirementBenefitPlansDetails3">
        <link:definition>060803 - Disclosure - Retirement Benefit Plans (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails2" id="RetirementBenefitPlansDetails2">
        <link:definition>060802 - Disclosure - Retirement Benefit Plans (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails1" id="RetirementBenefitPlansDetails1">
        <link:definition>060801 - Disclosure - Retirement Benefit Plans (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetails3" id="IncomeTaxesDetails3">
        <link:definition>06073 - Disclosure - Income Taxes (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetails2" id="IncomeTaxesDetails2">
        <link:definition>06072 - Disclosure - Income Taxes (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetails4" id="IncomeTaxesDetails4">
        <link:definition>06074 - Disclosure - Income Taxes (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/AccruedLiabilitiesDetails" id="AccruedLiabilitiesDetails">
        <link:definition>0604 - Disclosure - Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/AccruedLiabilitiesTables" id="AccruedLiabilitiesTables">
        <link:definition>0504 - Disclosure - Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/AccruedLiabilities" id="AccruedLiabilities">
        <link:definition>0204 - Disclosure - Accrued Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StatementsOfShareholdersEquity" id="StatementsOfShareholdersEquity">
        <link:definition>0140 - Statement - Consolidated Statements of Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesDetails2" id="SummaryOfSignificantAccountingPoliciesDetails2">
        <link:definition>06012 - Disclosure - Summary of Significant Accounting Policies (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesDetails1" id="SummaryOfSignificantAccountingPoliciesDetails1">
        <link:definition>06011 - Disclosure - Summary of Significant Accounting Policies (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesDetails" id="SummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>0601 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsDetails3" id="GoodwillAndIntangibleAssetsDetails3">
        <link:definition>06033 - Disclosure - Goodwill and Intangible Assets (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/LongTermDebtDetailsTextual" id="LongTermDebtDetailsTextual">
        <link:definition>06061 - Disclosure - Long-Term Debt (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessAcquisitionDetailsTextual" id="BusinessAcquisitionDetailsTextual">
        <link:definition>06122 - Disclosure - Business Acquisition (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessAcquisitionDetails1" id="BusinessAcquisitionDetails1">
        <link:definition>06121 - Disclosure - Business Acquisition (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessAcquisitionTables" id="BusinessAcquisitionTables">
        <link:definition>0512 - Disclosure - Business Acquisition (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessAcquisitionDetails" id="BusinessAcquisitionDetails">
        <link:definition>0612 - Disclosure - Business Acquisition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessSegmentsTables" id="BusinessSegmentsTables">
        <link:definition>0511 - Disclosure - Business Segments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/BusinessSegmentDetails" id="BusinessSegmentDetails">
        <link:definition>0611 - Disclosure - Business Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StockBasedCompensationDetailsTextual" id="StockBasedCompensationDetailsTextual">
        <link:definition>06092 - Disclosure - Stock-Based Compensation (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StockBasedCompensationDetails1" id="StockBasedCompensationDetails1">
        <link:definition>06091 - Disclosure - Stock-Based Compensation (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StockBasedCompensationDetails" id="StockBasedCompensationDetails">
        <link:definition>0609 - Disclosure - Stock-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StockBasedCompensationTables" id="StockBasedCompensationTables">
        <link:definition>0509 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansTables" id="RetirementBenefitPlansTables">
        <link:definition>0508 - Disclosure - Retirement Benefit Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <link:definition>0507 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetailsTextual" id="RetirementBenefitPlansDetailsTextual">
        <link:definition>060810 - Disclosure - Retirement Benefit Plans (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/RetirementBenefitPlansDetails" id="RetirementBenefitPlansDetails">
        <link:definition>0608 - Disclosure - Retirement Benefit Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetails1" id="IncomeTaxesDetails1">
        <link:definition>06071 - Disclosure - Income Taxes (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetails" id="IncomeTaxesDetails">
        <link:definition>0607 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/IncomeTaxesDetailsTextual" id="IncomeTaxesDetailsTextual">
        <link:definition>06075 - Disclosure - Income Taxes (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GovernmentGrantsDetails" id="GovernmentGrantsDetails">
        <link:definition>0605 - Disclosure - Government Grants (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/LongTermDebtDetails" id="LongTermDebtDetails">
        <link:definition>0606 - Disclosure - Long-Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/LongTermDebtTables" id="LongTermDebtTables">
        <link:definition>0506 - Disclosure - Long-Term Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsDetailsTextual" id="GoodwillAndIntangibleAssetsDetailsTextual">
        <link:definition>06034 - Disclosure - Goodwill and Intangible Assets (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsDetails2" id="GoodwillAndIntangibleAssetsDetails2">
        <link:definition>06032 - Disclosure - Goodwill and Intangible Assets (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsDetails1" id="GoodwillAndIntangibleAssetsDetails1">
        <link:definition>06031 - Disclosure - Goodwill and Intangible Assets (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsDetails" id="GoodwillAndIntangibleAssetsDetails">
        <link:definition>0603 - Disclosure - Goodwill and Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/GoodwillAndIntangibleAssetsTables" id="GoodwillAndIntangibleAssetsTables">
        <link:definition>0503 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/InventoriesDetailsTextual" id="InventoriesDetailsTextual">
        <link:definition>06021 - Disclosure - Inventories (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/InventoriesDetails" id="InventoriesDetails">
        <link:definition>0602 - Disclosure - Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/InventoriesTables" id="InventoriesTables">
        <link:definition>0502 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesDetailsTextual" id="SummaryOfSignificantAccountingPoliciesDetailsTextual">
        <link:definition>06013 - Disclosure - Summary of Significant Accounting Policies (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
        <link:definition>0501 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>0401 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StatementConsolidatedCondensedStatementsOfOperations" id="StatementConsolidatedCondensedStatementsOfOperations">
        <link:definition>0110 - Statement - Consolidated Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StatementConsolidatedCondensedBalanceSheets" id="StatementConsolidatedCondensedBalanceSheets">
        <link:definition>0120 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StatementConsolidatedCondensedStatementsOfCashFlows" id="StatementConsolidatedCondensedStatementsOfCashFlows">
        <link:definition>0130 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>00 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/StatementConsolidatedCondensedBalanceSheetsParenthetical" id="StatementConsolidatedCondensedBalanceSheetsParenthetical">
        <link:definition>0121 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureSummaryOfSignificantAccountingPolicies" id="DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>0201 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureInventories" id="DisclosureInventories">
        <link:definition>0202 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureGoodwillAndIntangibleAssets" id="DisclosureGoodwillAndIntangibleAssets">
        <link:definition>0203 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureLongTermDebt" id="DisclosureLongTermDebt">
        <link:definition>0206 - Disclosure - Long-Term Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureGovernmentGrants" id="DisclosureGovernmentGrants">
        <link:definition>0205 - Disclosure - Government Grants</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>0207 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureRetirementBenefitPlans" id="DisclosureRetirementBenefitPlans">
        <link:definition>0208 - Disclosure - Retirement Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureStockBasedCompensation" id="DisclosureStockBasedCompensation">
        <link:definition>0209 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureBusinessSegments" id="DisclosureBusinessSegments">
        <link:definition>0211 - Disclosure - Business Segments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://sifco.com/role/DisclosureBusinessAcquisition" id="DisclosureBusinessAcquisition">
        <link:definition>0212 - Disclosure - Business Acquisition</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="sif-20120930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="sif-20120930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="sif-20120930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="sif-20120930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2012-01-31" schemaLocation="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <import namespace="http://xbrl.sec.gov/exch/2012-01-31" schemaLocation="http://xbrl.sec.gov/exch/2012/exch-2012-01-31.xsd" />
  <import namespace="http://xbrl.sec.gov/country/2012-01-31" schemaLocation="http://xbrl.sec.gov/country/2012/country-2012-01-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://fasb.org/us-types/2012-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2012/elts/us-types-2012-01-31.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <import namespace="http://fasb.org/us-gaap/2012-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd" />
  <element id="sif_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_GovernmentGrantsAbstract" name="GovernmentGrantsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_GovernmentGrantsTextBlock" name="GovernmentGrantsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareTransactionsUnderCompanyStockPlan" name="ShareTransactionsUnderCompanyStockPlan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="sif_SummaryOfSignificantAccountingPoliciesTextualAbstract" name="SummaryOfSignificantAccountingPoliciesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ScheduleOfInterestRateSwapAgreementAbstract" name="ScheduleOfInterestRateSwapAgreementAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_InterestRateSwapAgreementMarketAdjustment" name="InterestRateSwapAgreementMarketAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="sif_TaxEffectOfInterestRateSwapAgreementMarketAdjustment" name="TaxEffectOfInterestRateSwapAgreementMarketAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="sif_NetInterestRateSwapAgreementMarketAdjustment" name="NetInterestRateSwapAgreementMarketAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="sif_InventoryTextualAbstract" name="InventoryTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_GovernmentGrantsTextualAbstract" name="GovernmentGrantsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_IncomeTaxesTextualAbstract" name="IncomeTaxesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ForgedComponentsGroupMember" name="ForgedComponentsGroupMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_TurbineComponentServicesAndRepairGroupMember" name="TurbineComponentServicesAndRepairGroupMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AppliedSurfaceConceptsGroupMember" name="AppliedSurfaceConceptsGroupMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BusinessAcquisitionTextualAbstract" name="BusinessAcquisitionTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_LongTermDebtTextualAbstract" name="LongTermDebtTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CreditAgreementAmendmentMember" name="CreditAgreementAmendmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_TermLoanMember" name="TermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AcquiredFiniteLivedIntangibleAssetsAbstract" name="AcquiredFiniteLivedIntangibleAssetsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UnamortizedPortionOfDeferredGrantRevenueRecordedInOtherLongTermLiabilities" name="UnamortizedPortionOfDeferredGrantRevenueRecordedInOtherLongTermLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="sif_PromissoryNoteMember" name="PromissoryNoteMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CreditAgreementPeriod" name="CreditAgreementPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DebtInstrumentMaturityYear" name="DebtInstrumentMaturityYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_StockOfForeignSubsidiariesPercentagePledged" name="StockOfForeignSubsidiariesPercentagePledged" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_LongTermDebtAdditionalTextualAbstract" name="LongTermDebtAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsEarnedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsEarnedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNotEarnedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNotEarnedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNotEarnedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNotEarnedWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsEarnedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsEarnedWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredAbstract" name="BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumedAbstract" name="BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumedAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_IdentifiableAssetsAbstract" name="IdentifiableAssetsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementsByShareBasedPaymentAwardTextualAbstract" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CompensationExpenseAccruedPercentageOfTargetLevels" name="CompensationExpenseAccruedPercentageOfTargetLevels" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CommonSharesEarnedPercentageOfInitialTargetNumberSharesAwarded" name="CommonSharesEarnedPercentageOfInitialTargetNumberSharesAwarded" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_TwoThousandAndSevenLongTermIncentivePlanMember" name="TwoThousandAndSevenLongTermIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PerformanceSharesAwardedDuringFiscalTwoThousandAndTwelveMember" name="PerformanceSharesAwardedDuringFiscalTwoThousandAndTwelveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PerformanceSharesAwardedDuringFiscalTwoThousandAndElevenMember" name="PerformanceSharesAwardedDuringFiscalTwoThousandAndElevenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PerformanceSharesAwardedDuringFiscalTwoThousandAndTenMember" name="PerformanceSharesAwardedDuringFiscalTwoThousandAndTenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CommonSharesEarnedPursuantToAward" name="CommonSharesEarnedPursuantToAward" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_RetirementBenefitPlansTextualAbstract" name="RetirementBenefitPlansTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_GoodwillAndIntangibleAssetsTextualAbstract" name="GoodwillAndIntangibleAssetsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NonInterestPromissoryNoteIssuedToSeller" name="NonInterestPromissoryNoteIssuedToSeller" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="sif_PercentageOfImputedInterestRateUsedToDiscount" name="PercentageOfImputedInterestRateUsedToDiscount" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_OutstandingShareAwardsEarnedAndIssuedAtGreaterThanTargetNumberOfShares" name="OutstandingShareAwardsEarnedAndIssuedAtGreaterThanTargetNumberOfShares" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ImpactOfNewlyIssuedAccountingStandardsPolicyTextBlock" name="ImpactOfNewlyIssuedAccountingStandardsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_TaxEffectOfAbstract" name="TaxEffectOfAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AssetsExceedBenefitObligationsMember" name="AssetsExceedBenefitObligationsMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BenefitObligationsExceedAssetsMember" name="BenefitObligationsExceedAssetsMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UnitedStatesEquitySecuritiesMember" name="UnitedStatesEquitySecuritiesMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NonUnitedStatesEquitySecuritiesMember" name="NonUnitedStatesEquitySecuritiesMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PensionFundOneMember" name="PensionFundOneMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PensionFundTwoMember" name="PensionFundTwoMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CompanysContributionToUnitedStatesMultiEmployerRetirementPlansForCertainUnionEmployeesAbstract" name="CompanysContributionToUnitedStatesMultiEmployerRetirementPlansForCertainUnionEmployeesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ContributionExpenseSubsidiaryOne" name="ContributionExpenseSubsidiaryOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="sif_ContributionExpenseSubsidiaryTwo" name="ContributionExpenseSubsidiaryTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="sif_PercentageOfEligibleCompensationOfDeferralContributionMinimum" name="PercentageOfEligibleCompensationOfDeferralContributionMinimum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PercentageOfEligibleCompensationOfDeferralContributionMaximum" name="PercentageOfEligibleCompensationOfDeferralContributionMaximum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_OptionsIssuedUnderBothPlansGenerallyVested" name="OptionsIssuedUnderBothPlansGenerallyVested" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="sif_CapitalExpendituresAbstract" name="CapitalExpendituresAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CustomerOneMember" name="CustomerOneMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_CustomerTwoMember" name="CustomerTwoMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_EuropeanCountriesMember" name="EuropeanCountriesMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AsianCountriesMember" name="AsianCountriesMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_InventoryObsolescenceReserveMember" name="InventoryObsolescenceReserveMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_WorkersCompensationReserveMember" name="WorkersCompensationReserveMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DescriptionOfBusinessPolicyTextBlock" name="DescriptionOfBusinessPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract" name="SummaryOfSignificantAccountingPoliciesAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BadDebtsExpense" name="BadDebtsExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="sif_NumberOfMajorCustomersHavingSpecifiedPercentageOfRevenue" name="NumberOfMajorCustomersHavingSpecifiedPercentageOfRevenue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AdditionalPercentageOfCombinedNetSalesToDirectSubcontractorsOfMajorCustomers" name="AdditionalPercentageOfCombinedNetSalesToDirectSubcontractorsOfMajorCustomers" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_EntityWideAccountsReceivableMajorCustomerPercentage" name="EntityWideAccountsReceivableMajorCustomerPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="sif_NumberOfMajorCustomersHavingSpecifiedPercentageOfAccountsReceivable" name="NumberOfMajorCustomersHavingSpecifiedPercentageOfAccountsReceivable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="sif_AdditionalPercentageOfAccountsReceivableToDirectSubcontractorsOfMajorCustomers" name="AdditionalPercentageOfAccountsReceivableToDirectSubcontractorsOfMajorCustomers" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="sif_IncomeLossFromContinuingOperationsBeforeDomesticAndForeignFederalIncomeTaxProvision" name="IncomeLossFromContinuingOperationsBeforeDomesticAndForeignFederalIncomeTaxProvision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="sif_NetDeferredTaxAssetsAndLiabilitiesBeforeValuationAllowance" name="NetDeferredTaxAssetsAndLiabilitiesBeforeValuationAllowance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_ScheduleOfChangesInProjectedBenefitObligationsAndFairChangeInFairValueAssetsTableTextBlock" name="ScheduleOfChangesInProjectedBenefitObligationsAndFairChangeInFairValueAssetsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ScheduleOfShareBasedCompensationActivityAbstract" name="ScheduleOfShareBasedCompensationActivityAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ScheduleOfComponentsNetBenefitCostsTableTextBlock" name="ScheduleOfComponentsNetBenefitCostsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ScheduleOfEffectOfSignificantAssumptionInputsChangesInPlanAssetsTableTextBlock" name="ScheduleOfEffectOfSignificantAssumptionInputsChangesInPlanAssetsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsEquityLargeValueMember" name="UsEquityLargeValueMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsEquityLargeBlendMember" name="UsEquityLargeBlendMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsEquityLargeGrowthMember" name="UsEquityLargeGrowthMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsEquityMidBlendMember" name="UsEquityMidBlendMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsEquitySmallBlendMember" name="UsEquitySmallBlendMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsDebtSecuritiesInflationProtectedBondMember" name="UsDebtSecuritiesInflationProtectedBondMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsDebtSecuritiesIntermediateTermBondMember" name="UsDebtSecuritiesIntermediateTermBondMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_UsDebtSecuritiesHighInflationBondMember" name="UsDebtSecuritiesHighInflationBondMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NonUsDebtSecuritiesEmergingMarketBondMember" name="NonUsDebtSecuritiesEmergingMarketBondMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_StableValueShortTermBondMember" name="StableValueShortTermBondMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ForeignSubsidiaryOneMember" name="ForeignSubsidiaryOneMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ForeignSubsidiaryTwoMember" name="ForeignSubsidiaryTwoMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_RetirementBenefitPlansAdditionalTextualAbstract" name="RetirementBenefitPlansAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PercentageOfEligibleCompensationForDeferralParticipantContribution" name="PercentageOfEligibleCompensationForDeferralParticipantContribution" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_PercentageOfDeferralParticipantContribution" name="PercentageOfDeferralParticipantContribution" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateBenefitObligationAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax" name="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateBenefitObligationAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateAssetsAccumulatedOtherComprehensiveIncomePriorServiceCostAfterTax" name="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateAssetsAccumulatedOtherComprehensiveIncomePriorServiceCostAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateBenefitObligationAccumulatedOtherComprehensiveIncomePriorServiceCostAfterTax" name="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateBenefitObligationAccumulatedOtherComprehensiveIncomePriorServiceCostAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_DefinedBenefitPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateAssetsAccumulatedOtherComprehensiveIncomeBeforeTax" name="DefinedBenefitPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateAssetsAccumulatedOtherComprehensiveIncomeBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_DefinedBenefitPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligationAccumulatedOtherComprehensiveIncomeBeforeTax" name="DefinedBenefitPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligationAccumulatedOtherComprehensiveIncomeBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_CommitmentsAndContingenciesTextualAbstract" name="CommitmentsAndContingenciesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ScheduleOfFutureMinimumRentalPaymentsAbstract" name="ScheduleOfFutureMinimumRentalPaymentsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BusinessSegmentsTextualAbstract" name="BusinessSegmentsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_EntityWideRevenueMajorCountriesPercentage" name="EntityWideRevenueMajorCountriesPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NumberOfCountriesHavingSpecifiedPercentageOfRevenue" name="NumberOfCountriesHavingSpecifiedPercentageOfRevenue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="sif_AssetImpairmentReserveMember" name="AssetImpairmentReserveMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DefinedBenefitPlanByPlanAssetAndLiabilitiesComponentAxis" name="DefinedBenefitPlanByPlanAssetAndLiabilitiesComponentAxis" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DefinedBenefitPlanByPlanAssetAndLiabilitiesComponentDomain" name="DefinedBenefitPlanByPlanAssetAndLiabilitiesComponentDomain" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateAssetsAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax" name="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAggregateAssetsAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_ShortTermInvestmentsMaturityPeriod" name="ShortTermInvestmentsMaturityPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_StockBasedCompensationAdditionalTextualAbstract" name="StockBasedCompensationAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_BusinessSegmentsAdditionalTextualAbstract" name="BusinessSegmentsAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_MinimumPercentageOfRevenueGreaterThanSpecifiedCountry" name="MinimumPercentageOfRevenueGreaterThanSpecifiedCountry" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_OtherSecuritiesMember" name="OtherSecuritiesMember" abstract="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NonUsEquitySecuritiesForeignLargeBlendMember" name="NonUsEquitySecuritiesForeignLargeBlendMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NonUsEquitySecuritiesDiversifiedEmergingMarketMember" name="NonUsEquitySecuritiesDiversifiedEmergingMarketMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ForeignOperationsAbstract" name="ForeignOperationsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_NumberOfMajorCustomer" name="NumberOfMajorCustomer" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_WeightedAverageNumberOfCommonSharesAbstract" name="WeightedAverageNumberOfCommonSharesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_ForgeAcquisitionLlcMember" name="ForgeAcquisitionLlcMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_TwfAcquisitionLlcMember" name="TwfAcquisitionLlcMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_AmortizationPeriodOfLossesUtilizedUnderPensionFund" name="AmortizationPeriodOfLossesUtilizedUnderPensionFund" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="sif_IncomeTaxBenefitsResultingOfIssuingCommonShares" name="IncomeTaxBenefitsResultingOfIssuingCommonShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="sif_NonOperatingPropertyAssetValue" name="NonOperatingPropertyAssetValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="sif_AccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" name="AccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
</schema>
