API 5CT steel tube belongs to API casing. No matter seamless steel pipe or welded type, it is mainly used among the structural retainer for the walls of oil, gas wells. Today, our main topic would focus on main steel grade of it.

The main steel grade of API 5CT would conclude the following five types.

API 5CT J55;

API 5CT K55;

API 5CT N80;

API 5CT L80;

API 5CT P110.

With its special characters, we will figure out that the basic size for this steel pipeline.

Outer Dimensions: 6.0mm–219.0mm;

Wall Thickness: 1.0mm–30 mm;

Length: max 12000mm.