ASTM A 269

This specification covers nominal-wall-thickness, seamlessand welded austenitic steel tubing for general corrosion-resisting and low- orhigh-temperature service. All material shall be furnished in the heat-treatedcondition. The steel shall conform to the chemical composition requirements.Different mechanical test requirements that includes, flaring test, flangetest, hardness test, and reverse flattening test are presented. Also, each tubeshall be subjected to the non-destructive electric test or the hydrostatictest. Finally the hardness requirements for different grades of tubes arehighlighted.