1.Uniform wall thickness
2.High roundness accuracy
3.Three-layer welding to ensure excellent weld performance
4.Good insulation performance
5.Strong waterproof ability
6.High impact resistance under low temperature conditions to be directly buried in frozen ground
7.30-50 years service life
GK has strict production and inspection rules to ensure all pipe quality meeting requirements. And ach seam welded pipe will be conducted X-ray inspection. Usually, Ingots, blooms, billets, coils or plates used for the manufacture of pipe shall be made via basic oxygen, electric furnace or open hearth in combination with a ladle refining process.
We could offer you X60 seam welded pipe, X65 seam welded pipe, api 5l x65 carbon seam welded pipe, X70 seam welded pipe, 42 x70 seam welded pipe, X80 seam welded pipe.
1. Composition and Mechanical properties of commonly used carbon steel alloy steel.
2. Seemless steel pipe, welded pipe, etc.
3. A series international universal series, domestic series.