Tenaris produces seamless precision tubes for mechanical applications, conforming to European norm EN 102971 and other national standards in force.

The following information can be found in the catalogue:

	Grades and indicative correspondence to the norms
	Details of the order definition
	Chemical analyses
	Condition supplied
	Mechanical characteristics
	Dimensions and tolerances
	Straightness
	Length
	Checks and tests
	Surfaces and surface protection
	Ends
	Certification
	Identification and marking
	Packing
	Minimum batch and quantity tolerance