ASTM A789.pdf Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
SA-789/SA-789M.pdf
(Identical with ASTM Specification A 789/A 789M-04a except for an editorial correction in 4.1.)
This specification covers grades of nominal wall
thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on
resistance to stress corrosion cracking. These steels are
susceptible to embrittlement if used for prolonged periods
at elevated temperatures.