... Outer Diameter: 16 - 460 mm Thickness: 3- 60 mm Type seamless steel pipePipe Size1/2"—48" (DN15-1200)Wall ThicknessSCH10,SCH20,SCH30 ... ,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46,X52,X60, X65ST37 ... . Reliable forwarder, 2-hour away from port. ASTM A 53 hot-rolled seamless steel pipe