API 5L X65 LSAW Steel Pipe
Products Description
Our API 5L X65 LSAW Steel Pipe is a high-performance longitudinal submerged arc welded line pipe manufactured in strict accordance with API 5L and ISO 3183 international standards. This X65 grade LSAW steel pipe includes PSL1 and PSL2 two quality levels, adopting advanced JCOE/UOE forming technology and double-sided automatic submerged arc welding process, featuring high strength, high pressure resistance, good toughness and excellent corrosion resistance. The outer diameter ranges from 219mm to 1600mm with complete wall thickness specifications, supporting custom length and anti-corrosion treatment. Widely used in long-distance oil and gas transmission, chemical fluid delivery, municipal engineering and offshore energy projects. All API 5L X65 LSAW pipes pass strict hydraulic testing, radiographic testing and dimensional inspection, with complete certification documents. As a professional manufacturer, we provide factory direct price, stable supply and one-stop customized pipeline solutions for global buyers.
Product Standard & Basic Specifications
Specification Item | Detailed Parameters |
Product Name | API 5L X65 LSAW Steel Pipe / Longitudinal Submerged Arc Welded Line Pipe |
Executive Standard | API 5L (Latest Version), ISO 3183 |
Grade | API 5L X65 |
Quality Level | PSL1 / PSL2 (PSL2 for high standard engineering projects) |
Manufacturing Process | LSAW (Longitudinal Submerged Arc Welding), JCOE / UOE forming process |
Outer Diameter Range | 219mm - 1600mm (8 inch - 63 inch) |
Wall Thickness Range | 6.0mm - 50.8mm (Standard); Custom thick wall up to 80mm available |
Pipe Length | 6m - 20m standard length, custom fixed length cutting available |
End Finish | Plain End, Beveled End (30° standard bevel for welding) |
Wall Thickness Tolerance | -8% to +19.5% (Comply with API 5L standard) |
Mechanical & Chemical Properties (X65 Grade Standard)
Performance Item | Standard Parameters |
Minimum Yield Strength (SMYS) | 450 MPa (65,300 psi) |
Maximum Yield Strength | 600 MPa (87,000 psi) |
Tensile Strength | 535 - 760 MPa (77,600 - 110,200 psi) |
Yield to Tensile Ratio | ≤ 0.93 (Max) |
Carbon (C) | ≤ 0.12% |
Manganese (Mn) | ≤ 1.60% |
Phosphorus (P) | ≤ 0.025% |
Sulfur (S) | ≤ 0.015% |
Other Alloy Elements | Cu≤0.50%, Ni≤0.50%, Cr≤0.50%, Mo≤0.15% |
Product Advantages & Features
Advantage Dimension | Detailed Description |
High Structural Stability | Adopts advanced JCOE/UOE forming and double-sided submerged arc welding technology, uniform pipe wall thickness, smooth welding seam, no crack, no air hole, excellent overall structural stability. |
Super Pressure Resistance | X65 high-strength grade with stable mechanical properties, suitable for medium and high-pressure oil & gas long-distance transmission projects, effectively resisting pipeline pressure and external impact. |
Excellent Corrosion Resistance | Strict chemical component control, low sulfur and low phosphorus, good toughness and corrosion resistance, adaptable to complex underground and marine engineering environments. |
Strict Quality Inspection | 100% non-destructive testing (NDT) for welding seams, hydraulic pressure test, dimensional inspection, fully compliant with API 5L international standards, stable and reliable quality. |
Customization Flexibility | Support custom diameter, wall thickness, length, end processing and surface anti-corrosion treatment (3PE, FBE, epoxy coating) to meet diverse project needs. |
Cost-Effective | Large-scale factory production, stable supply cycle, high cost performance, ideal for large-scale petroleum and natural gas pipeline engineering projects. |
Wide Application Fields
Application Industry | Specific Usage Scenarios |
Petroleum & Natural Gas | Long-distance onshore and offshore oil and gas transmission pipelines, gas gathering lines, crude oil transportation trunk lines |
Energy Engineering | Thermal power plant pipeline systems, energy storage pipeline projects, medium and high-pressure fluid transmission projects |
Chemical Industry | Chemical fluid transmission pipelines, industrial medium pressure conveying pipelines |
Infrastructure Engineering | Urban gas pipeline network, municipal water transmission and pressure pipeline, port and bridge structural steel pipes |
Offshore Engineering | Offshore platform pipeline supporting facilities, marine shallow water oil and gas transmission pipelines |
Production & Packaging & Shipping
Item | Details |
Production Capacity | 15,000 tons per month, stable stock of conventional sizes, fast delivery |
Quality Certificate | API certificate, ISO9001 quality system certificate, MTC material test report |
Packaging Method | Standard export seaworthy packaging, pipe end plastic cap protection, steel strip bundling, waterproof woven bag wrapping |
Shipping Port | Tianjin Port, Qingdao Port, Shanghai Port (flexible arrangement) |
Delivery Time | Standard size: 7-10 working days; Custom size: 15-25 working days |
Trade Terms | FOB, CIF, CFR, EXW, DDP (support customized trade terms) |
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