Stainless Steel Seamless Tube Standards: ASTM SA/A312/M, ASTM A 790/A 790M,EN10216 O. D.0.405" ... , 1.4404, 1.4571 05) Standards: ASTM (ASME) SA/A312/M, ASTM (ASME) A 790/ A 790M, EN10216, 06) Size: A ... America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe Seamless Stainless Steel Tube (ASTM A2123 TP316L/316)