EN 10217-7
Welded steel tubes for pressure purposes
Technical Delivery Conditions - Part 7: Stainless Steel Tubes.
This standard will replace most of the standards for welded stainless tubes and pipes for pressure purposes within the CEN countries.
It is similar to DIN 17457 and SS 219711.
The standard prescribes 100 % non-destructive testing. This gives a possible design utilization of 100%, and a weld factor z = 1.0. Heat treatment may be omitted if agreed. The standard inspection is normally in accordance with EN 10204 3.1.B.
USA
ASTM A270.
Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
This standard is used for the imperial sizes of ASTs hygienic tubing intended for use in the dairy, food and pharmaceutical industry, where high demands are required on the surface finish.
