API 5L Pipe: Seamless & Welded Line Pipe (X42–X70)
API 5L is the international standard for line pipe used to transport oil, gas and water. Shaanxi Shuncheng Tian Steel supplies API 5L pipe in seamless and welded forms, covering both PSL1 and PSL2 specification levels and grades X42 through X70, with mill test certificates on every delivery.
API 5L Product Range
| Form | Specification | Typical Applications |
|---|---|---|
| Seamless line pipe | API 5L PSL1 / PSL2, grades X42–X70 | Transmission lines, casing, high-pressure service |
| Welded line pipe | API 5L, longitudinal or spiral welded | Long-distance pipelines, water and gas mains |
PSL1 vs PSL2
| Specification Level | Key Difference | Typical Use |
|---|---|---|
| PSL1 | Standard requirements for line pipe | General oil, gas and water transport |
| PSL2 | Stricter toughness and chemistry limits, mandatory test requirements | Offshore and sour-service projects, demanding specifications |
Typical Supply Scope
Line pipe is supplied in standard API 5L dimensional ranges, with outer diameters from approximately 21.3 mm to 1219 mm and wall thicknesses from 2.77 mm up, in single or double random lengths. Send your required grade, PSL level, size and quantity — we confirm availability and test documentation before quotation.
Why Source API 5L Pipe from Shuncheng Steel
- Mill test certificates — chemical composition and mechanical properties documented per batch.
- PSL1 and PSL2 coverage — both specification levels available for project-specific requirements.
- Seamless and welded forms — matched to pressure, diameter and cost requirements.
- Related pipe products — spiral welded, thick-wall seamless and other carbon steel pipe lines can be consolidated in one order. See our spiral welded steel pipe and carbon steel products pages.
Need API 5L line pipe for your project? Send your grade, PSL level, size and quantity — contact our sales team for a mill-direct quotation with mill test certificate included.
HONOR
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO etc. We welcome friends from all over the world to visit our factory at any time！
