<SEC-DOCUMENT>0001171843-18-002474-index.html : 20180402
<SEC-HEADER>0001171843-18-002474.hdr.sgml : 20180402
<ACCEPTANCE-DATETIME>20180402173025
ACCESSION NUMBER:		0001171843-18-002474
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		28
CONFORMED PERIOD OF REPORT:	20180329
FILED AS OF DATE:		20180402
DATE AS OF CHANGE:		20180402

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:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31518
		FILM NUMBER:		18730453

	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>
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Document 1 - file: f6k_040218.htm

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Document 2 - file: header.jpg

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Document 3 - file: deutsche_logo.jpg

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Document 4 - file: logo.jpg

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Document 5 - file: profile_map.jpg

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Document 6 - file: letter_1.jpg

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Document 7 - file: letter_2.jpg

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Document 8 - file: trend_1.jpg

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Document 9 - file: trend_2.jpg

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Document 10 - file: indicators_1.jpg

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Document 11 - file: indicators_2.jpg

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Document 12 - file: indicators_3.jpg

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Document 13 - file: indicators_4.jpg

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Document 14 - file: indicators_5.jpg

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Document 15 - file: indicators_6.jpg

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Document 16 - file: indicators_7.jpg

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Document 17 - file: indicators_8.jpg

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Document 18 - file: auditreport_1.jpg

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Document 19 - file: auditreport_2.jpg

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Document 20 - file: auditreport_3.jpg

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Document 21 - file: auditreport_4.jpg

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<FILENAME>auditreport_5.jpg
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Document 22 - file: auditreport_5.jpg

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<FILENAME>auditreport_6.jpg
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Document 23 - file: auditreport_6.jpg

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Document 24 - file: auditreport2_1.jpg

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<FILENAME>auditreport2_2.jpg
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Document 25 - file: auditreport2_2.jpg

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<FILENAME>auditreport2_3.jpg
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Document 26 - file: auditreport2_3.jpg

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<FILENAME>auditreport2_4.jpg
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Document 27 - file: auditreport2_4.jpg

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Document 28 - file: auditreport2_5.jpg

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