Standard: GB, ASTM, API Outer Diameter: 16 - 460 mm Thickness: 3- 60 mm ... 11.8 , 12.0m. Random length: 5-12mStandardASTM A53,A106,API 5L,ASME B36.10M-1996DIN1626,DIN1629,DIN17175,DIN 2448JIS G3452 ... JIS G3456,JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46,X52,X60, X65ST37.0,ST35.8 ... service4. Reliable forwarder, 2-hour away from port. ASTM A 53 hot-rolled seamless steel pipe