    <SEC-DOCUMENT>0001292814-18-003549-index.html : 20181108
    <SEC-HEADER>0001292814-18-003549.hdr.sgml : 20181108
    <ACCEPTANCE-DATETIME>20181108092945
    ACCESSION NUMBER:		0001292814-18-003549
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		16
    CONFORMED PERIOD OF REPORT:	20181231
    FILED AS OF DATE:		20181108
    DATE AS OF CHANGE:		20181108

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NATIONAL STEEL CO
    		CENTRAL INDEX KEY:			0001049659
    		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310]
    		IRS NUMBER:				000000000
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14732
    		FILM NUMBER:		181168455

    	BUSINESS ADDRESS:
    		STREET 1:		RUA LAURO MULLER
    		STREET 2:		116 36 ANDAR
    		CITY:			RIO DE JANEIRO RJ BR
    		STATE:			D5
    		ZIP:			00000
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>sid20181108_6k.htm
    <DESCRIPTION>FORM 6-K
    <TEXT>
    Document 1 - file: sid20181108_6k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>apresentacao3q18_callvfx14x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: apresentacao3q18_callvfx14x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>x18110811263400.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: x18110811263400.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>x18110811263401.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: x18110811263401.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>x18110811263402.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: x18110811263402.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>x18110811263403.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: x18110811263403.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>x18110811263404.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: x18110811263404.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>x18110811263405.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: x18110811263405.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>x18110811263406.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: x18110811263406.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>x18110811263407.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: x18110811263407.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>x18110811263408.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: x18110811263408.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>x18110811263409.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: x18110811263409.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>x18110811263410.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: x18110811263410.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>x18110811263411.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: x18110811263411.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>x18110811263412.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: x18110811263412.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>x18110811263414.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: x18110811263414.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>