2025-02-06 ASTM A269 Stainless Steel Tube specification covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion-resisting and low- or high-temperature service. All ASTM A269 material shall be furnished in the heat-treated condition. All ASTM A269 material shall be furnished in the heat-treated condition. The steel shall conform to the chemical composition requirements. Different mechanical test requirements that includes, flaring test, flange test, hardness test, and reverse flattening test are presented.