Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of gbt 9711 l245 hfw steel pipe in China. Please feel free to buy cheap gbt 9711 l245 hfw steel pipe from our factory. All customized products are with high quality and low price.
Implementation standard: GB/T 9711 Specification for steel pipes for pipelines (PSL1 / PSL2)
GB/T 9711 is a transportation steel pipe standard formulated by China for the oil and gas industry, suitable for long-distance transportation of natural gas, crude oil, water and other media on land and at sea. The standard is divided into two quality grades, PSL1 and PSL2. PSL2 has stricter requirements and adds indicators such as chemical composition, mechanical properties, non-destructive testing and flattening test. We can produce HFW steel pipes that meet PSL1 or PSL2 according to project requirements to meet the stable transportation needs under different working conditions.
Common steel grades: L245, L290, L320 and other models are available
We supply L245, L245N, L245M, L290, L290N, L320, L320N, L320M and other steel grades all year round, covering a variety of working conditions such as normal temperature, medium strength, and low temperature impact. The main differences between steel grades are reflected in strength level and low-temperature toughness. For example, L245M has excellent weldability and impact resistance, and is suitable for areas with cold climates or large temperature differences between day and night. All materials are accompanied by factory material reports and performance test data, and support third-party verification.
High-standard production environment, full-process weld inspection guarantee
We use high-frequency resistance welding (HFW) technology to complete forming, heating, welding and straightening on a fully automatic welding line. The entire production process is carried out in a standardized workshop with constant temperature and humidity to ensure stable welding results. Each steel pipe undergoes ultrasonic non-destructive testing (UT) and eddy current testing to accurately identify internal defects in the weld to ensure that there are no slag inclusions, incomplete penetration and other problems. The quality inspection process can provide video recording or image sampling for customers to prepare files or keep evidence for quality control.
Quick response and full-process service guarantee
We promise to respond to all technical and order-related inquiries within 24 hours, and support customized length, groove, coating, anti-corrosion treatment and other processing services. Each steel pipe adopts the standard packaging method of steel strapping + end cap protection + lifting label, which can adapt to various transportation scenarios such as sea and land transportation. For international customers, we can provide a full set of export documents such as CO, material report, packing list, certificate of origin, etc. according to the target market standards and customs clearance requirements, and support designated inspection agencies to issue third-party reports. The cooperation process is professional and reliable.
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