API 5CT is standard technical specifications for steel casing and tubing pipes used for oil wells in petroleum and natural gas industries.
Besides casing and tubing,it also includes pup joints,coupling stock,coupling material,and accessory materials,and establishes requirements for three product specification levels (PSL-1,PSL-2,and PSL-3).The requirements for PSL-1 are the basis of this standard.
According to API 5CT standard,steel material used for making the pipe billet supplied shall be grain refining treatment.This steel shall contain one or more grain refining elements,such as a certain amount of aluminum, niobium,vanadium or titanium,so that the austenite grains of the steel Grain refinement.
- Pipes supplied shall be manufactured in seamless type or EW type.
- Couplings,coupling stock and coupling materials shall be in seamless.
- Cold drawn tubing pipe shall be properly heat treated,otherwise is not acceptable.
- Casing and tubing attachment materials shall be seamless pipe,unless other type stated on the order.
Haihao Group supply API 5CT standard casting pipes,tubing pipes and other steel pipes(API 5L seamless steel pipes,ERW/SSAW/LSAW steel pipes etc) more than 30 years,if you want to know more about our piping products,please feel free to contact us:sales@haihaogroup.com