API-5CT N80 casing pipe or tubing Including two types: N80-1 and N80-Q, which differ in the heat treatment. N80-Q steel is treated by quenching and tempering. WORLD IRON & STEEL is one of the leading China oilfield tubings and pipe manufacturers and suppliers, if you are looking for quality API N80-Q pipe, 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
