steel pipe

3) Standard: ASTM, GB/T3091-2001

2) Wall thickness: 2.5 - 8.18mm

1) Nominal OD: 21.3 - 194mm (1/2" - 7 1/4")

3:Low pressure liquid pipe:

3) Standard: API SPEC 5L, ASTM, BS, GB/T9711.1-1997 

2) Wall thickness: 3.2 - 19.1mm

1) Nominal OD: 114.3 - 609.6mm (4" - 24")

2:Line pipes:

3) Standard: API SPEC 5CT

2) Wall thickness: 6 - 19.1mm

1) Nominal OD: 219.1 - 609.6mm (8 5/8" - 24")

1:erw steel pipe

steel pipe ( Oil casing pipe , erw steel pipe )

steel pipe ( Oil casing pipe , erw steel pipe )
1)OD: 219.1 - 609.6mm (8 5/8" - 24")
2) Wall thickness: 6 - 19mm