World iron & steel is one of the leading China API 5CT Gr.N80-1 Pipe Casing manufacturers and suppliers, N80-1 steel pipe is the pipe treated by normalizing and tempering conditions, if you want to buy or import high-quality API 5CT N80-1 pipe casing, API Gr.N80-1 pipe casing, please feel free to contact us.
Standard: API 5CT
Grade: N80
Tolerance.
OD＜114.3mm tolerance ±0.79
OD≥114.3mm tolerance -0.5% +1%
Thickness tolerance:-12.5%
Manufacturing process:S or EW
