Stainless steel seamless pipe Standards: ASTM/ ASME A213/SA213, A269/SA269, A/SA312 Steel Grade: TP 304/304L, 316/316L, 316Ti, Staniless steel seamless ... pipe(stainless tube)Standards: ASTM/ ASME ... TestASTM E213 E309 E426ASTM E213 E309 E426HardnessHRB<90HRB<90 polished Stainless steel seamless pipe