<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva, formerly WebFilings-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.kennametal.com/20141231" xmlns:kmt="http://www.kennametal.com/20141231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-roles-2014-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-types-2014-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2014-01-31" schemaLocation="http://xbrl.sec.gov/currency/2014/currency-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2014-01-31" schemaLocation="http://xbrl.sec.gov/exch/2014/exch-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kmt-20141231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kmt-20141231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kmt-20141231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="kmt-20141231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccumulatedOtherComprehensiveLossIncome" roleURI="http://www.kennametal.com/role/AccumulatedOtherComprehensiveLossIncome">
        <link:definition>2119100 - Disclosure - Accumulated Other Comprehensive (Loss) Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveLossIncomeDetails" roleURI="http://www.kennametal.com/role/AccumulatedOtherComprehensiveLossIncomeDetails">
        <link:definition>2419402 - Disclosure - Accumulated Other Comprehensive (Loss) Income (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 id="AccumulatedOtherComprehensiveLossIncomeDetails1" roleURI="http://www.kennametal.com/role/AccumulatedOtherComprehensiveLossIncomeDetails1">
        <link:definition>2419403 - Disclosure - Accumulated Other Comprehensive (Loss) Income (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 id="AccumulatedOtherComprehensiveLossIncomeTables" roleURI="http://www.kennametal.com/role/AccumulatedOtherComprehensiveLossIncomeTables">
        <link:definition>2319301 - Disclosure - Accumulated Other Comprehensive (Loss) Income (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 id="Acquisition" roleURI="http://www.kennametal.com/role/Acquisition">
        <link:definition>2105100 - Disclosure - Acquisition</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionDetails1" roleURI="http://www.kennametal.com/role/AcquisitionDetails1">
        <link:definition>2405402 - Disclosure - 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 id="AcquisitionDetailsTextual" roleURI="http://www.kennametal.com/role/AcquisitionDetailsTextual">
        <link:definition>2405403 - Disclosure - 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 id="AcquisitionTables" roleURI="http://www.kennametal.com/role/AcquisitionTables">
        <link:definition>2305301 - Disclosure - 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 id="BasisOfPresentation" roleURI="http://www.kennametal.com/role/BasisOfPresentation">
        <link:definition>2102100 - Disclosure - Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BasisOfPresentationBasisOfPresentationDetailsTextual" roleURI="http://www.kennametal.com/role/BasisOfPresentationBasisOfPresentationDetailsTextual">
        <link:definition>2402401 - Disclosure - Basis of Presentation Basis of Presentation (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 id="BenefitPlans" roleURI="http://www.kennametal.com/role/BenefitPlans">
        <link:definition>2110100 - Disclosure - 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 id="BenefitPlansBenefitPlansDetailsTextual" roleURI="http://www.kennametal.com/role/BenefitPlansBenefitPlansDetailsTextual">
        <link:definition>2410404 - Disclosure - Benefit Plans 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 id="BenefitPlansDetails" roleURI="http://www.kennametal.com/role/BenefitPlansDetails">
        <link:definition>2410402 - Disclosure - 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 id="BenefitPlansDetails1" roleURI="http://www.kennametal.com/role/BenefitPlansDetails1">
        <link:definition>2410403 - Disclosure - 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 id="BenefitPlansTables" roleURI="http://www.kennametal.com/role/BenefitPlansTables">
        <link:definition>2310301 - Disclosure - 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 id="CondensedConsolidatedBalanceSheetsUnaudited" roleURI="http://www.kennametal.com/role/CondensedConsolidatedBalanceSheetsUnaudited">
        <link:definition>1003000 - Statement - Condensed Consolidated Balance Sheets (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 id="CondensedConsolidatedBalanceSheetsUnauditedParenthetical" roleURI="http://www.kennametal.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical">
        <link:definition>1003501 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (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 id="CondensedConsolidatedStatementsOfCashFlowUnaudited" roleURI="http://www.kennametal.com/role/CondensedConsolidatedStatementsOfCashFlowUnaudited">
        <link:definition>1004000 - Statement - Condensed Consolidated Statements of Cash Flow (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 id="CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" roleURI="http://www.kennametal.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited">
        <link:definition>1002000 - Statement - Condensed Consolidated Statements of Comprehensive Income (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 id="CondensedConsolidatedStatementsOfComprehensiveIncomeUnauditedParenthetical" roleURI="http://www.kennametal.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnauditedParenthetical">
        <link:definition>1002501 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) (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 id="CondensedConsolidatedStatementsOfIncomeUnaudited" roleURI="http://www.kennametal.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited">
        <link:definition>1001000 - Statement - Condensed Consolidated Statements of Income (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 id="CondensedConsolidatedStatementsOfIncomeUnauditedCalc2" roleURI="http://www.kennametal.com/role/CondensedConsolidatedStatementsOfIncomeUnauditedCalc2">
        <link:definition>1001000 - Statement - Condensed Consolidated Statements of Income (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 id="DerivativeInstrumentsAndHedgingActivities" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivities">
        <link:definition>2107100 - Disclosure - Derivative Instruments and Hedging Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeInstrumentsAndHedgingActivitiesDetails" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails">
        <link:definition>2407402 - Disclosure - Derivative Instruments and Hedging Activities (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 id="DerivativeInstrumentsAndHedgingActivitiesDetails1" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails1">
        <link:definition>2407403 - Disclosure - Derivative Instruments and Hedging Activities (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 id="DerivativeInstrumentsAndHedgingActivitiesDetailsTextual" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivitiesDetailsTextual">
        <link:definition>2407404 - Disclosure - Derivative Instruments and Hedging Activities (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 id="DerivativeInstrumentsAndHedgingActivitiesDetailsTextual1" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivitiesDetailsTextual1">
        <link:definition>2407405 - Disclosure - Derivative Instruments and Hedging Activities (Details Textual 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 id="DerivativeInstrumentsAndHedgingActivitiesTables" roleURI="http://www.kennametal.com/role/DerivativeInstrumentsAndHedgingActivitiesTables">
        <link:definition>2307301 - Disclosure - Derivative Instruments and Hedging Activities (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 id="DocumentAndEntityInformation" roleURI="http://www.kennametal.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - 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 id="EarningsPerShare" roleURI="http://www.kennametal.com/role/EarningsPerShare">
        <link:definition>2116100 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerSharesDetails" roleURI="http://www.kennametal.com/role/EarningsPerSharesDetails">
        <link:definition>2416401 - Disclosure - Earnings Per Shares (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 id="EnvironmentalMatters" roleURI="http://www.kennametal.com/role/EnvironmentalMatters">
        <link:definition>2114100 - Disclosure - Environmental Matters</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EnvironmentalMattersDetailsTextual" roleURI="http://www.kennametal.com/role/EnvironmentalMattersDetailsTextual">
        <link:definition>2414401 - Disclosure - Environmental Matters (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 id="Equity" roleURI="http://www.kennametal.com/role/Equity">
        <link:definition>2117100 - Disclosure - 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 id="EquityDetails" roleURI="http://www.kennametal.com/role/EquityDetails">
        <link:definition>2417402 - Disclosure - Equity (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 id="EquityDetailsTextualDetails" roleURI="http://www.kennametal.com/role/EquityDetailsTextualDetails">
        <link:definition>2417403 - Disclosure - Equity details textual (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 id="EquityTables" roleURI="http://www.kennametal.com/role/EquityTables">
        <link:definition>2317301 - Disclosure - Equity (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 id="FairValueMeasurements" roleURI="http://www.kennametal.com/role/FairValueMeasurements">
        <link:definition>2106100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails" roleURI="http://www.kennametal.com/role/FairValueMeasurementsDetails">
        <link:definition>2406402 - Disclosure - Fair Value Measurements (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 id="FairValueMeasurementsTables" roleURI="http://www.kennametal.com/role/FairValueMeasurementsTables">
        <link:definition>2306301 - Disclosure - Fair Value Measurements (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 id="FairValueMeasurmentsDetailsTextual" roleURI="http://www.kennametal.com/role/FairValueMeasurmentsDetailsTextual">
        <link:definition>2406403 - Disclosure - Fair Value Measurments (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 id="GoodwillAndOtherIntangibleAssets" roleURI="http://www.kennametal.com/role/GoodwillAndOtherIntangibleAssets">
        <link:definition>2120100 - Disclosure - Goodwill and Other 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 id="GoodwillAndOtherIntangibleAssetsDetails" roleURI="http://www.kennametal.com/role/GoodwillAndOtherIntangibleAssetsDetails">
        <link:definition>2420402 - Disclosure - Goodwill and Other 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 id="GoodwillAndOtherIntangibleAssetsDetails1" roleURI="http://www.kennametal.com/role/GoodwillAndOtherIntangibleAssetsDetails1">
        <link:definition>2420403 - Disclosure - Goodwill and Other 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 id="GoodwillAndOtherIntangibleAssetsDetailsTextual" roleURI="http://www.kennametal.com/role/GoodwillAndOtherIntangibleAssetsDetailsTextual">
        <link:definition>2420404 - Disclosure - Goodwill and Other 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 id="GoodwillAndOtherIntangibleAssetsTables" roleURI="http://www.kennametal.com/role/GoodwillAndOtherIntangibleAssetsTables">
        <link:definition>2320301 - Disclosure - Goodwill and Other 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 id="IncomeTaxes" roleURI="http://www.kennametal.com/role/IncomeTaxes">
        <link:definition>2115100 - 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 id="IncomeTaxesDetailsTextual" roleURI="http://www.kennametal.com/role/IncomeTaxesDetailsTextual">
        <link:definition>2415401 - 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 id="Inventories" roleURI="http://www.kennametal.com/role/Inventories">
        <link:definition>2111100 - 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 id="InventoriesDetails" roleURI="http://www.kennametal.com/role/InventoriesDetails">
        <link:definition>2411402 - 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 id="InventoriesTables" roleURI="http://www.kennametal.com/role/InventoriesTables">
        <link:definition>2311301 - 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 id="LongTermDebt" roleURI="http://www.kennametal.com/role/LongTermDebt">
        <link:definition>2112100 - 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 id="LongTermDebtDetailsTextual" roleURI="http://www.kennametal.com/role/LongTermDebtDetailsTextual">
        <link:definition>2412401 - 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 id="NewAccountingStandards" roleURI="http://www.kennametal.com/role/NewAccountingStandards">
        <link:definition>2103100 - Disclosure - New Accounting Standards</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Organization" roleURI="http://www.kennametal.com/role/Organization">
        <link:definition>2101100 - Disclosure - Organization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringAndRelatedCharges" roleURI="http://www.kennametal.com/role/RestructuringAndRelatedCharges">
        <link:definition>2108100 - Disclosure - Restructuring and Related Charges</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RestructuringAndRelatedChargesDetailsTextual" roleURI="http://www.kennametal.com/role/RestructuringAndRelatedChargesDetailsTextual">
        <link:definition>2408403 - Disclosure - Restructuring and Related Charges (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 id="RestructuringDetails" roleURI="http://www.kennametal.com/role/RestructuringDetails">
        <link:definition>2408402 - Disclosure - Restructuring (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 id="RestructuringTables" roleURI="http://www.kennametal.com/role/RestructuringTables">
        <link:definition>2308301 - Disclosure - Restructuring (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 id="SegmentData" roleURI="http://www.kennametal.com/role/SegmentData">
        <link:definition>2121100 - Disclosure - Segment Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentDataDetails" roleURI="http://www.kennametal.com/role/SegmentDataDetails">
        <link:definition>2421402 - Disclosure - Segment Data (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 id="SegmentDataTables" roleURI="http://www.kennametal.com/role/SegmentDataTables">
        <link:definition>2321301 - Disclosure - Segment Data (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 id="StockBasedCompensation" roleURI="http://www.kennametal.com/role/StockBasedCompensation">
        <link:definition>2109100 - 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 id="StockBasedCompensationDetails" roleURI="http://www.kennametal.com/role/StockBasedCompensationDetails">
        <link:definition>2409402 - 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 id="StockBasedCompensationDetails1" roleURI="http://www.kennametal.com/role/StockBasedCompensationDetails1">
        <link:definition>2409403 - 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 id="StockBasedCompensationDetails2" roleURI="http://www.kennametal.com/role/StockBasedCompensationDetails2">
        <link:definition>2409404 - Disclosure - Stock-Based Compensation (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 id="StockBasedCompensationDetailsTextual" roleURI="http://www.kennametal.com/role/StockBasedCompensationDetailsTextual">
        <link:definition>2409405 - 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 id="StockBasedCompensationTables" roleURI="http://www.kennametal.com/role/StockBasedCompensationTables">
        <link:definition>2309301 - 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 id="SupplementalCashFlowDisclosures" roleURI="http://www.kennametal.com/role/SupplementalCashFlowDisclosures">
        <link:definition>2104100 - Disclosure - Supplemental Cash Flow Disclosures</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalCashFlowDisclosuresDetails" roleURI="http://www.kennametal.com/role/SupplementalCashFlowDisclosuresDetails">
        <link:definition>2404402 - Disclosure - Supplemental Cash Flow Disclosures (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 id="SupplementalCashFlowDisclosuresTables" roleURI="http://www.kennametal.com/role/SupplementalCashFlowDisclosuresTables">
        <link:definition>2304301 - Disclosure - Supplemental Cash Flow Disclosures (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="kmt_AcquisitionsTextualAbstract" name="AcquisitionsTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_AdditionalDerivativeInstrumentsAndHedgingActivitiesTextualAbstract" name="AdditionalDerivativeInstrumentsAndHedgingActivitiesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_BasisofPresentationAbstract" name="BasisofPresentationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_BusinessAcquisitionsNetIncomeNetLoss" name="BusinessAcquisitionsNetIncomeNetLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="kmt_BusinessAcquisitionsRevenue" name="BusinessAcquisitionsRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_CashPaidDuringPeriodForAbstract" name="CashPaidDuringPeriodForAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_Changeinaccountspayablerelatedtopurchasesofpropertyplantandequipment" name="Changeinaccountspayablerelatedtopurchasesofpropertyplantandequipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_ComponentsOfIntangibleAssetsAbstract" name="ComponentsOfIntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ComponentsOfIntangibleAssetsTableTextBlock" name="ComponentsOfIntangibleAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ContingentConsiderationPaid" name="ContingentConsiderationPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_ContractsTranslatedToUSDollarsMember" name="ContractsTranslatedToUSDollarsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_CurrencyForwardContractsMember" name="CurrencyForwardContractsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_DerivativeInstrumentsAndHedgingActivitiesTextualAbstract" name="DerivativeInstrumentsAndHedgingActivitiesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_DerivativesDesignatedAsHedgingInstrumentFairValue" name="DerivativesDesignatedAsHedgingInstrumentFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="kmt_DerivativesNotDesignatedAsHedgingInstrumentFairValue" name="DerivativesNotDesignatedAsHedgingInstrumentFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="kmt_DividendReinvestmentAndEmployeeBenefitAndStockPlans" name="DividendReinvestmentAndEmployeeBenefitAndStockPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_EarningsPerShareTextualAbstract" name="EarningsPerShareTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_EnvironmentalMattersTextualAbstract" name="EnvironmentalMattersTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" name="FiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_ForwardStartingInterestRateSwapContractsMember" name="ForwardStartingInterestRateSwapContractsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_GoodwillAndOtherIntangibleAssetsAdditionalTextualAbstract" name="GoodwillAndOtherIntangibleAssetsAdditionalTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_GoodwillandOtherIntangibleAssetImpairment" name="GoodwillandOtherIntangibleAssetImpairment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_IncomeTaxTextualAbstract" name="IncomeTaxTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_IncreaseDecreaseInIntangibleAssetsDueToForeignCurrencyTranslationAdjustments" name="IncreaseDecreaseInIntangibleAssetsDueToForeignCurrencyTranslationAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_IndustrialMember" name="IndustrialMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureIndefiniteLivedTrademarkAssetAxis" name="InfrastructureIndefiniteLivedTrademarkAssetAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureIndefiniteLivedTrademarkAssetDomain" name="InfrastructureIndefiniteLivedTrademarkAssetDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureIndefiniteLivedTrademarkAssetMember" name="InfrastructureIndefiniteLivedTrademarkAssetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureMember" name="InfrastructureMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureTechnologyAssetAxis" name="InfrastructureTechnologyAssetAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureTechnologyAssetDomain" name="InfrastructureTechnologyAssetDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InfrastructureTechnologyAssetMember" name="InfrastructureTechnologyAssetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_IntangibleAssetWriteDown" name="IntangibleAssetWriteDown" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_InventoriesTextualAbstract" name="InventoriesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_LandAndBuildingsGross" name="LandAndBuildingsGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="kmt_LongTermDebtAndCapitalLeasesAdditionalTextualAbstract" name="LongTermDebtAndCapitalLeasesAdditionalTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_LongTermDebtAndCapitalLeasesTextualAbstract" name="LongTermDebtAndCapitalLeasesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_MaximumPeriodOfAchievementOfPerformanceGoalsToEarnPerformanceUnits" name="MaximumPeriodOfAchievementOfPerformanceGoalsToEarnPerformanceUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_NetBookValue" name="NetBookValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="kmt_NetPeriodicOtherPostretirementCostsBenefitsTableTextBlock" name="NetPeriodicOtherPostretirementCostsBenefitsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_OtherExpenseIncomeNetMember" name="OtherExpenseIncomeNetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_PaymentsForDerivativeHedgingInstrumentUponSettlement" name="PaymentsForDerivativeHedgingInstrumentUponSettlement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="kmt_PeriodOverwhichContingentConsiderationisPayable" name="PeriodOverwhichContingentConsiderationisPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_PortfolioofBusinessesforStrategicAlternativesAxis" name="PortfolioofBusinessesforStrategicAlternativesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_PortfolioofBusinessesforStrategicAlternativesDomain" name="PortfolioofBusinessesforStrategicAlternativesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_PortfolioofBusinessesforStrategicAlternativesMember" name="PortfolioofBusinessesforStrategicAlternativesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_ProFormaAbstract" name="ProFormaAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_RangeForwardContractsMember" name="RangeForwardContractsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ReclassofSpecialTerminationBenefitCharges" name="ReclassofSpecialTerminationBenefitCharges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="kmt_ReductionofLiability" name="ReductionofLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_RestrictedStockUnitsPerformanceVestingMember" name="RestrictedStockUnitsPerformanceVestingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_RestrictedStockUnitsTimeVestingMember" name="RestrictedStockUnitsTimeVestingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_RestructuringChargesNonCashItem" name="RestructuringChargesNonCashItem" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="kmt_RestructuringChargesRelatedToInventoryDisposals" name="RestructuringChargesRelatedToInventoryDisposals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="kmt_RestructuringRelatedChargesRecordedInCostOfGoodsSold" name="RestructuringRelatedChargesRecordedInCostOfGoodsSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="kmt_RestructuringRelatedChargesRecordedInOperatingExpenses" name="RestructuringRelatedChargesRecordedInOperatingExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="kmt_RestructuringandRelatedCostExpectedCostPercent" name="RestructuringandRelatedCostExpectedCostPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="kmt_RevisioninCashFlowStatement" name="RevisioninCashFlowStatement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ScheduleOfPerformanceBasedAndTimeVestingUnitsActivityTableTextBlock" name="ScheduleOfPerformanceBasedAndTimeVestingUnitsActivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_SegmentInformationAbstract" name="SegmentInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAggregateIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingLife" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingLife" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentOtherthanOptionsExpirationsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentOtherthanOptionsExpirationsInPeriodWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="kmt_ShareBasedCompensationArrangementbyShareBasedpaymentAwardEquityInstrumentOtherThanOptionsExpirationsinPeriod" name="ShareBasedCompensationArrangementbyShareBasedpaymentAwardEquityInstrumentOtherThanOptionsExpirationsinPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_StockBasedCompensationAdditionalTextualAbstract" name="StockBasedCompensationAdditionalTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_StockBasedCompensationTextualAbstract" name="StockBasedCompensationTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_TMBMember" name="TMBMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_TechnologyBasedAndOtherMember" name="TechnologyBasedAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="kmt_TwentyElevenCreditAgreementMember" name="TwentyElevenCreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
