The P110 API-5CT steel casing pipe is the high grade amongst other grades of steel.White band is marked on the finished casing to point out the materials.
The J55 API-5CT casing pipe is a comparatively low steel grade in oil drilling. It is widely applied for shallow oil and gas extraction.Because of its low cost among other grades of steel
API-5CT N80 oilfield casing pipe contains N80-1 and N80-Q types. Those two materials are absolutely consistent regarding the chemical composition and mechanical attributes