... --12mm OD:6mm-830mm. API 5L/ASTM A106 GR B carbon Seamless Steel Pipes ... cases Standard: GB, JIS, ASTM, AISI, DIN and more Material: ASTM A 179 A 53 A106, API5L Gr. ... B X60 X42, Q235B, Q345B, Q345C, 20#, 12Cr1MoV, 15CrMo, TP304, 316 310S.S235JR and ... capped With API, Mill, OMIC and SGS marksStandard codesModels of steel tubesTensite strengthMPaYield ...