<SEC-DOCUMENT>0001171843-19-002278-index.html : 20190408
<SEC-HEADER>0001171843-19-002278.hdr.sgml : 20190408
<ACCEPTANCE-DATETIME>20190408154032
ACCESSION NUMBER:		0001171843-19-002278
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		20
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190408
DATE AS OF CHANGE:		20190408

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:		19737410

	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>6-K
<SEQUENCE>1
<FILENAME>f6k_040119.htm
<DESCRIPTION>FORM 6-K
<TEXT>
Document 1 - file: f6k_040119.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>audit1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: audit1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>audit2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: audit2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>audit3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: audit3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>audit4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: audit4.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>audit5.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: audit5.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>audit6.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: audit6.jpg

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

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

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

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>leadingindicatorsgraph2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: leadingindicatorsgraph2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>leadingindicatorsgraph3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: leadingindicatorsgraph3.jpg

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

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>pwc1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: pwc1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>pwc2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: pwc2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>pwc3.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: pwc3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>pwc4.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: pwc4.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>rocca_sig.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: rocca_sig.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>rocca_sig2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: rocca_sig2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>trendinformationgraph1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: trendinformationgraph1.jpg

</DOCUMENT>
</SEC-DOCUMENT>