BS/GB/DIN/ASTM Standard Seamless Pipe(best seller)

Specifications seamless steel pipe

1.Pipeline: API SPEC 5L

2.Steel Grade:specification 4"-20"

3.Steel Grade: GR.A,GR.1,GR.7,GR.3

Seamless steel pipes 1.Seamless carbon steel pipe for general use: ASTM A 53 GR.B, Steel Grade: SA53B and specification 1/8"-28", 17-711.2mm. 2.Seamless Carbon steel pipe for high temperature: ASTM A 106 GR.B,  Steel Grade: SA106B and specification 1/8"-24", 17-610mm. 3.Pipeline: API SPEC 5L. 5CT Steel Grade: B and specification 4"-20", 114-508mm. 4.Seamless Carbon steel pipe for low temperature of -40C-101C, ASTM A333, Steel Grade: GR.A,GR.1,GR.7,GR.3 specification 1"-24", -610mm . 5.Seamless Carbon steel pipe Construction used DIN2448/1629,DIN17175-1979,  German standard, Steel Grade: st37,st42,st52,st35.8- st45.8/1, specification 1/2"-24", 21.3-610mm. 6.Structure used seamless Carbon steel pipe GB/T8162-1999, steel: 10#, 20#, 35#, 45#, 16Mn(Q345,ST52) Size: 21.3-720MM*1-70mm. 7.Liquid transport carbon steel pipe seamless GB/T8163-1999, steel: 10#, 20#, 16Mn(Q345) Size: 21.3-559*1-50mm. 8. Low or Medium pressure boiler seamless carbon steel pipe GB3087-1999, steel: 10#, 20# Size: 21.3-508*1-45mm.