High-strength linepipe steel plate manufactured to API 5L X56 requirements and offered as an equivalent to GB/T 9711 L390. This hot-rolled plate grade is engineered for demanding oil, gas and water transmission pipelines and for welded-pipe production (spiral submerged-arc welding, ERW and LSAW/longitudinal SAW).
Key features
- Conforms to API 5L X56 chemical and mechanical intent; X56 denotes a higher-strength linepipe grade (approximately 56 ksi yield strength range).
- Equivalent grade: GB/T 9711 L390.
- Typical applications: onshore and offshore oil & gas and water pipelines, pressured fluid transmission for power plants and chemical works, drainage and irrigation mains, pipeline infrastructure for roads and forestry, and heavy engineering structural components.
- Common pipe manufacturing uses: spiral SAW (SSAW), straight SAW (LSAW), and electric-resistance-welded (ERW) line pipe.
Available supply and services
- Hot-rolled API 5L X56 plates supplied cut-to-size or as full plates.
- Secondary processing available to order: plate cutting, rolling/forming, weld preparations and edge conditioning to customer drawings.
- Inspection and certification options: third-party testing and certification against EN or ASTM inspection regimes (mechanical, chemical and NDT on request).
Quality and traceability
Manufactured from qualified raw material and produced to pipeline-grade standards with material test reports available. We can accommodate project-specific test plans and documentation requirements for shipment and installation.
For pricing, lead times and available dimensions/thicknesses, request a quotation with your required quantities, plate dimensions and inspection/packaging needs.
Product Details
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