<SEC-DOCUMENT>0000095953-22-000025.txt : 20220225
<SEC-HEADER>0000095953-22-000025.hdr.sgml : 20220225
<ACCEPTANCE-DATETIME>20220225161055
ACCESSION NUMBER:		0000095953-22-000025
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20220223
FILED AS OF DATE:		20220225
DATE AS OF CHANGE:		20220225

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tam Aaron M
		CENTRAL INDEX KEY:			0001883056

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05200
		FILM NUMBER:		22680038

	MAIL ADDRESS:	
		STREET 1:		4510 COX ROAD
		STREET 2:		SUITE 201
		CITY:			GLEN ALLEN
		STATE:			VA
		ZIP:			23060

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNALLOY CORP
		CENTRAL INDEX KEY:			0000095953
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL PIPE & TUBES [3317]
		IRS NUMBER:				570426694
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4510 COX ROAD
		STREET 2:		SUITE 201
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23060
		BUSINESS PHONE:		864-585-3605

	MAIL ADDRESS:	
		STREET 1:		4510 COX ROAD
		STREET 2:		SUITE 201
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23060

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACKMAN UHLER INDUSTRIES INC
		DATE OF NAME CHANGE:	19710510
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_164582343615829.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-02-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000095953</issuerCik>
        <issuerName>SYNALLOY CORP</issuerName>
        <issuerTradingSymbol>SYNL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001883056</rptOwnerCik>
            <rptOwnerName>Tam Aaron M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4510 COX ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 201</rptOwnerStreet2>
            <rptOwnerCity>GLEN ALLEN</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>23060</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9170</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.755</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26842</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares vested pursuant to attainment of 30-day volume weighted average price target of $17.00 per share</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Doug Tackett, Power of Attorney for Aaron M. Tam</signatureName>
        <signatureDate>2022-02-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa.htm
<DESCRIPTION>POWER OF ATTORNEY FOR: AARON M. TAM
<TEXT>
<!-- Document created using Workiva -->
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<pre>
This Statement confirms that the undersigned has authorized and designated Doug Tackett and Aaron Tam, and each of them, the true and lawful attorneys-in-fact and agents of the undersigned, with full power of substitution and re-substitution, for and in the name, place and stead of the undersigned, in any and all capacities, to sign any and all reports or amendments thereto required to be filed under Section 16 of the United States Securities and Exchange Act of 1934, as amended, and the regulations from time to time promulgated thereunder, and to file the same, with any exhibits thereto, with the Securities and Exchange Commission, and the undersigned hereby grants to such attorneys-in-fact and agents, and each of them full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirm all that said attorneys-infact and agents, or any of them, or their or his/her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. The undersigned acknowledges that neither Doug Tackett and Aaron Tam, is assuming, nor is
Synalloy Corporation assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.
</pre>
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</TEXT>
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</SEC-DOCUMENT>
