... DIN17175, JIS G3458, G3467, etc. Material Carbon Steel, Alloy steel. steel tube Standards and Grades:GB5310, GB3087, 10#, 20 ... /14MoV63/10CrMo910) EN10216(P265GH,16Mo3)JIS G3458 Alloy Steel Pipes (STPA 12/ 20/ 22/ 23/ 24 ... / 25/ 26) JIS G3462 Alloy Steel for Boiler and Heat Exchanger Tubes (STBA12/ 13/ 20/ 22/ ... 23) JIS G3467 Steel Tubes for Fired ...