Import Gb/T 9711.2-1997 Longitudinal Line Pipe — Buy in wholesale FOB from Supplier in China

The GB/T 9711.2-1997 Longitudinal Line Pipe supplied by Cangzhou Xinrisheng Steel Pipe Co., Ltd. meets the Chinese standard for oil and natural gas line pipe. It is offered with outside diameters from 168 mm to 1 422 mm and wall thicknesses ranging between 6 mm and 50 mm. The material grades listed are L245 to L415, and the pipe is commonly used in major domestic projects such as the West‑East Natural Gas Transmission and the Qinshui Project of CNPC. Lengths are typically supplied in 6 m to 12 m sections, although exact cuts can be arranged on request.

Manufacturing employs the Longitudinal Submerged‑Arc Welding (LSAW) technique, providing a straight longitudinal seam that is preferred for large‑diameter pipelines. Typical industry practice adds a coal‑tar epoxy coating and allows an outside‑diameter tolerance of ±2 mm. The product aligns with GB/T 9711.2‑1997 and, in practice, also satisfies EN 10217‑1 and API 5L Grade B requirements for similar applications. These specifications give the pipe the strength and corrosion resistance needed for high‑pressure transport of hydrocarbons and water.

Key customers include national pipeline operators, EPC contractors and large‑scale infrastructure investors in the Asia‑Pacific market. The supplier generally quotes on a FOB basis from the Cangzhou port; buyers should confirm the precise Incoterm, payment schedule and any required pre‑shipment inspections. Minimum order quantities are not disclosed in the listing, so a formal request for quotation is necessary to obtain the specific MOQ. Lead time, packaging options and certification details must be verified with the supplier before contract award.

Cangzhou Xinrisheng Steel Pipe Co., Ltd. operates from No. 87 Huanghe East Road, Xinhua District, Cangzhou, Hebei 061000, China. The company holds a harbour‑level trust tier, indicating that basic business verification has been completed. Its response statistics show a 0 % response rate with no recorded average response time, suggesting that contact may need follow‑up. All location and verification details are taken directly from the marketplace listing.

The manufacturer produces a broad selection of pipe products, including longitudinal and spiral welded steel pipes, thermal‑insulation pipe, square pipe and various fittings. The source description highlights a focus on quality management from raw material procurement through to after‑sale service, with strict testing applied throughout the process. Xinrisheng’s catalogue lists both LSAW and SSAW pipe variants that meet multiple international standards. No further corporate milestones or client references are disclosed in the provided data.