ASTM A 790
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
The specification covers seamless and straight-seam weldedferritic/austenitic steel pipe for general corrosive service, with particularemphasis on resistance to stress corrosion cracking. The pipe shall be made bythe seamless or an automatic welding process, with no addition of filler metalin the welding operation. Heat analysis shall be made to determine thepercentages of the elements specified. Tension tests, hardening tests,flattening tests, hydrostatic tests and nondestructive electric tests shall bemade to conform to the specified requirements.
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