Hot Galvanized welding Steel Pipe and Tube 1) Standard: ASTM DIN a) O.D : 16 - 610mm b) Wall thickness: 0. ... , S355, SS400, A1010, SAE1045, X40, X60 etcE: Conforms to international standards, like: ASTM A53, ASTM A500, ASTM A513, BS1387, DIN2391, DIN2394, DIN17175, JIS G3452, EN10210, EN10305 ...