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    CONFORMED SUBMISSION TYPE:	20-F
    PUBLIC DOCUMENT COUNT:		15
    CONFORMED PERIOD OF REPORT:	20151231
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    DATE AS OF CHANGE:		20160331

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    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GERDAU S.A.
    		CENTRAL INDEX KEY:			0001073404
    		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310]
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    		SEC ACT:		1934 Act
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    		STREET 1:		AVENIDA FARRAPOS, 1811
    		CITY:			PORTO ALEGRE, RIO GRANDE DO SU
    		STATE:			D5
    		ZIP:			90220-005
    		BUSINESS PHONE:		011-55-51-3323-2703

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    		STREET 1:		AVENIDA FARRAPOS, 1811
    		CITY:			PORTO ALEGRE, RIO GRANDE DO SU
    		STATE:			D5
    		ZIP:			90220-005

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    		DATE OF NAME CHANGE:	19981112
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