<SEC-DOCUMENT>0001193125-17-152074-index.html : 20170501
<SEC-HEADER>0001193125-17-152074.hdr.sgml : 20170501
<ACCEPTANCE-DATETIME>20170501165603
ACCESSION NUMBER:		0001193125-17-152074
CONFORMED SUBMISSION TYPE:	20-F
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20161231
FILED AS OF DATE:		20170501
DATE AS OF CHANGE:		20170501

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENARIS SA
		CENTRAL INDEX KEY:			0001190723
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		20-F
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31518
		FILM NUMBER:		17801575

	BUSINESS ADDRESS:	
		STREET 1:		29 AVENUE DE LA PORTE-NEUVE
		STREET 2:		3RD FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2227
		BUSINESS PHONE:		212-376-6500

	MAIL ADDRESS:	
		STREET 1:		29 AVENUE DE LA PORTE-NEUVE
		STREET 2:		3RD FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L 2227
</SEC-HEADER>
<DOCUMENT>
<TYPE>20-F
<SEQUENCE>1
<FILENAME>d381842d20f.htm
<DESCRIPTION>FORM 20-F
<TEXT>
Document 1 - file: d381842d20f.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-7.1
<SEQUENCE>2
<FILENAME>d381842dex71.htm
<DESCRIPTION>EX-7.1
<TEXT>
Document 2 - file: d381842dex71.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-7.2
<SEQUENCE>3
<FILENAME>d381842dex72.htm
<DESCRIPTION>EX-7.2
<TEXT>
Document 3 - file: d381842dex72.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-8.1
<SEQUENCE>4
<FILENAME>d381842dex81.htm
<DESCRIPTION>EX-8.1
<TEXT>
Document 4 - file: d381842dex81.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>5
<FILENAME>d381842dex121.htm
<DESCRIPTION>EX-12.1
<TEXT>
Document 5 - file: d381842dex121.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.2
<SEQUENCE>6
<FILENAME>d381842dex122.htm
<DESCRIPTION>EX-12.2
<TEXT>
Document 6 - file: d381842dex122.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-13.1
<SEQUENCE>7
<FILENAME>d381842dex131.htm
<DESCRIPTION>EX-13.1
<TEXT>
Document 7 - file: d381842dex131.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-13.2
<SEQUENCE>8
<FILENAME>d381842dex132.htm
<DESCRIPTION>EX-13.2
<TEXT>
Document 8 - file: d381842dex132.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g381842finpg01a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g381842finpg01a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g381842finpg01b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g381842finpg01b.jpg

</DOCUMENT>
</SEC-DOCUMENT>