<SEC-DOCUMENT>0001292814-15-002837-index.html : 20151124
<SEC-HEADER>0001292814-15-002837.hdr.sgml : 20151124
<ACCEPTANCE-DATETIME>20151124124703
ACCESSION NUMBER:		0001292814-15-002837
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20150930
FILED AS OF DATE:		20151124
DATE AS OF CHANGE:		20151124

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:		151251819

	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>siditr3q15_6k.htm
<DESCRIPTION>ITR - QUARTERLY FINANCIAL INFORMATION - SEPTEMBER 30, 2015 - CIA SIDERURGICA NACIONAL
<TEXT>
Document 1 - file: siditr3q15_6k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>x15111317003600.jpg
<TEXT>
Document 2 - file: x15111317003600.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>fp04a.gif
<TEXT>
Document 3 - file: fp04a.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>fp04c.gif
<TEXT>
Document 4 - file: fp04c.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>fp07b.gif
<TEXT>
Document 5 - file: fp07b.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>fp08a.gif
<TEXT>
Document 6 - file: fp08a.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>fp10a.gif
<TEXT>
Document 7 - file: fp10a.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>fp10a1.gif
<TEXT>
Document 8 - file: fp10a1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>fp10b.gif
<TEXT>
Document 9 - file: fp10b.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>fp11a.gif
<TEXT>
Document 10 - file: fp11a.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>fp12.gif
<TEXT>
Document 11 - file: fp12.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>fp7d.gif
<TEXT>
Document 12 - file: fp7d.gif

</DOCUMENT>
</SEC-DOCUMENT>