<SEC-DOCUMENT>0000008947-18-000087.txt : 20180522
<SEC-HEADER>0000008947-18-000087.hdr.sgml : 20180522
<ACCEPTANCE-DATETIME>20180522190234
ACCESSION NUMBER:		0000008947-18-000087
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180518
FILED AS OF DATE:		20180522
DATE AS OF CHANGE:		20180522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FERGUSON THOMAS E
		CENTRAL INDEX KEY:			0001208749

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12777
		FILM NUMBER:		18853630

	MAIL ADDRESS:	
		STREET 1:		ONE MUSEUM PLACE, SUITE 500
		STREET 2:		3100 WEST 7TH STREET
		CITY:			FORT WORTH
		STATE:			TX
		ZIP:			76107

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AZZ INC
		CENTRAL INDEX KEY:			0000008947
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
		IRS NUMBER:				750948250
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			0228

	BUSINESS ADDRESS:	
		STREET 1:		ONE MUSEUM PLACE, SUITE 500
		STREET 2:		3100 W 7TH STREET
		CITY:			FORT WORTH
		STATE:			TX
		ZIP:			76107
		BUSINESS PHONE:		8178100095

	MAIL ADDRESS:	
		STREET 1:		ONE MUSEUM PLACE, SUITE 500
		STREET 2:		3100 W 7TH STREET
		CITY:			FORT WORTH
		STATE:			TX
		ZIP:			76107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AZTEC MANUFACTURING CO
		DATE OF NAME CHANGE:	20000911
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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        <issuerName>AZZ INC</issuerName>
        <issuerTradingSymbol>AZZ</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>FERGUSON THOMAS E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MUSEUM PLACE, SUITE 500</rptOwnerStreet1>
            <rptOwnerStreet2>3100 WEST 7TH STREET</rptOwnerStreet2>
            <rptOwnerCity>FORT WORTH</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76107</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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            <securityTitle>
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            </securityTitle>
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            </conversionOrExercisePrice>
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                <value>2018-05-18</value>
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                </sharesOwnedFollowingTransaction>
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    <footnotes>
        <footnote id="F1">Represents the vesting of dividend equivalent rights accrued on 1,489 performance share units (&quot;PSUs&quot;) granted on 4/27/2015, which AZZ has elected to pay in shares of AZZ common stock.  These dividend equivalent rights vest when, and if, the underlying PSUs vest.</footnote>
        <footnote id="F2">The Reporting Owner disposed of 407 shares of AZZ common stock to satisfy tax withholding obligations.</footnote>
        <footnote id="F3">Each PSU represents a contingent right to receive shares of AZZ common stock with the actual number varying based on achieved results.</footnote>
        <footnote id="F4">Represents the number of shares acquired by the Reporting Owner upon the vesting of PSUs granted on Arpil 27, 2015.  The Reporting Owner earned 16% of the target award based on the achievement of certain pre-established performance goals during the performance cycle.</footnote>
        <footnote id="F5">Represents 100% of the target number of PSUs that will be earned, if at all, based upon the achievement of certain pre-established performance goals during the 3-year performance cycle (3/1/2018 - 2/28/2021), which is subject to a 25% total shareholder return (&quot;TSR&quot;) modifier that may be applied if AZZ's TSR ranks in the top quartile relative to the TSR generated by each company in AZZ's industry peer group and a 25% decrease if AZZ's TSR is in the bottom quartile relative to its industry peer group..</footnote>
        <footnote id="F6">Each restricted stock unit (&quot;RSU&quot;) represents a contingent right to receive one share of AZZ common stock.</footnote>
        <footnote id="F7">The RSUs are granted under AZZ's 2014 Long Term Incentive Plan and vest over a 3-year period with 1/3rd of the RSUs vesting on each of the first, second and third anniversaries of the grant date beginning on 5/18/2019.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Tara D. Mackey, attorney-in-fact for Thomas E. Ferguson</signatureName>
        <signatureDate>2018-05-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
