High Strength · Multi-Standard Certified · Full-Scenario Engineering Solution
Product Overview
Manufactured by advanced LSAW & spiral forming technology, our large-diameter pipes comply with both API 5L (line pipe) and API 5CT (casing & tubing) standards - ideal for long-distance transmission and oil/gas well construction.
Key Advantages
Dual-Certified for Multi-Function
Certified to both API 5L and API 5CT - reducing procurement complexity for oil & gas transmission, casing services, structural applications, offshore pipelines, and urban networks.
Premium Carbon Steel & Enhanced Anti-Corrosion
Grades include Gr.B, X42–X70, J55–P110; options: 3PE, FBE, coal tar epoxy, cement lining, CRA cladding - suitable for sour service, subsea, permafrost, etc.
Double-Sided SAW with Full NDT
Automatic double-sided SAW for smooth welds and stable properties; 100% UT + RT on weld ends; PAUT/TOFD available.
Rigorous Testing & Full Traceability
Hydrostatic test, flattening, guided bend, Charpy V-notch, hardness, grain size, HIC/SSC on request; fully traceable from heat to final pipe.
Typical Applications
| Field | Application | Standard |
|---|---|---|
| Oil & Gas Upstream | Well casing, surface casing, production tubing | API 5CT |
| Long-Distance Pipeline | Crude oil / product / gas trunk lines | API 5L PSL2 |
| Urban Infrastructure | Heating networks, water mains, pile structures | API 5L / Structural |
| Offshore / Subsea | Submarine pipeline, riser, collapse-resistant casing | API 5L + coating |
| Geology & Mining | Grouting pipe, slurry transport, support piling | API 5CT / Custom |
Production & Logistics
End Finishing: Plain / beveled, threaded or coupled (API 5CT threads)
Surface Protection: Bare, rust preventive oil, black paint, external coating (3PE/FBE, etc.)
Packaging: Steel strapping + end protectors + tarpaulin (pallet or bulk for sea freight)
Why Choose Us?
20+ years of large-diameter pipe manufacturing experience (JCOE, UOE, spiral lines)
Close to port - reduced inland logistics for full-length pipes
One-stop service: material selection → design optimization → coating → third-party inspection → international logistics
Products and company
Get a Quote
📞 WhatsApp: 0086 18233409873
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