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
API 5L steel line pipe is mainly used as oil and gas industries pipelines in various working environments. API 5I welded steel tube material generally in carbon steel and comply to API SPEC 5L specifications, expectedly working in extreme situations at very low and very high temperatures, corrosion resistance for corrosive environments, and for sour services in H2S conditions.
API 5L welded steel tubing：
1）Standard: API5L ASTM ASME B36.10。DIN
2）Material：API5LGr.B A106Gr.B,A105Gr.B,A53Gr.B，A243WPB etc.
4）Wall thickness: 2.11mm-100mm
6）Packing：spray-painted, beveled, pipi cap, galvanized steel strapping, yellow sling strap then woven bag packaging.
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.