Large-diameter, thick-walled straight seam submerged arc welded pipes (LSAW) are the core pressure-bearing material in large-scale projects such as global long-distance oil and gas pipelines, urban pipeline network upgrades, offshore wind power infrastructure, bridge and high-speed rail steel structures, and coal chemical fluid transportation . The forming precision, welding stability, mechanical strength, and corrosion resistance of the pipes directly determine the safety, service life, and operation and maintenance costs of the entire project. Therefore, overseas EPC general contractors, state-owned energy enterprises, and cross-border engineering procurement teams are increasingly inclined to choose Chinese source factories with their own large-scale factories, full-process quality control, complete international certifications, and rich overseas project experience when selecting suppliers.
Hebei Haiganwei Steel Pipe Co., Ltd. (HSPC) , established in 2010, is located in Zhenggang Industrial Park, Yanshan District, Hebei Province, known as the "China Pipeline Equipment Manufacturing Base." The factory covers a total area of 140,951 square meters, with a production building area of 30,000 square meters and a total investment of 300 million RMB. It is a large-scale, professional, and high-tech enterprise in North China specializing in the production of high-end JCOE-LSAW straight seam submerged arc welded pipes . With sixteen years of experience in the pipeline industry, the company has a professional technical team of over 30 people and a complete system encompassing R&D, production, quality inspection, sales, and after-sales service. It possesses stable, large-volume, and high-standard export supply capabilities.
Haiganwei's core technology utilizes the internationally advanced JCOE progressive multi-point stamping and double-sided submerged arc welding process. Unlike traditional spiral welded pipes and ordinary straight seam pipes, the JCOE process results in lower forming stress, higher pipe roundness, and more uniform weld structure, perfectly adapting to the demanding conditions of high-pressure, large-diameter, thick-walled, and long-distance transportation. Compared to traditional UOE production lines, the JCOE process offers greater flexibility, meeting various overseas customized orders of multiple specifications, steel grades, and small to large batches, adapting to diverse global engineering needs.
Our company's products strictly adhere to mainstream domestic and international standards such as API 5L, GB/T9711, ISO3183, ASTM, and EN, covering the entire range of API 5L PSL1/PSL2 grades, with the highest production capacity being X80N high-strength, low-temperature pipeline pipes. Product specifications cover outer diameters from 457.2mm to 1422.4mm and wall thicknesses from 8mm to 50mm, and we can customize various special specifications of thick-walled, high-strength structural steel pipes. We also have our own anti-corrosion workshop, providing a full range of pipeline anti-corrosion processing services, including FBE epoxy powder coating and 2PE/3PE polyethylene coating, achieving integrated delivery encompassing pipe manufacturing, anti-corrosion, testing, and export.
Relying on a comprehensive quality control system, the company possesses ISO9001 quality system certification, CE EU pressure equipment certification, SGS certification, and multiple national patented technologies. Equipped with a CNAS standard physical and chemical laboratory, each batch of products undergoes raw material re-inspection, molding dimension testing, fully automated ultrasonic AUT flaw detection, 100% hydrostatic pressure testing, weld non-destructive testing, and final appearance dimension verification. The entire process is traceable and supports supervision and re-inspection by authoritative third-party institutions, fully meeting the document review standards for large-scale international bidding projects.
For many years, Haiganwei products have been widely used in a variety of scenarios, including long-distance oil and gas pipelines, urban gas municipal pipelines, coal mine slurry transportation, high-voltage power infrastructure, wind power and marine engineering, cross-sea bridges, high-speed rail steel structures, marine pile foundations, and chemical fluid transportation. It has long served large domestic energy companies such as the National Pipeline Network, China National Petroleum Corporation, China National Aviation Fuel Group, ENN Group, and China Gas Holdings. Its products are exported to more than 60 countries and regions around the world, and it has cultivated overseas infrastructure markets in the Middle East, Southeast Asia, Africa, and Europe, accumulating a wealth of mature experience in cross-border project delivery.
As a source manufacturer, Haiganwei eliminates the price difference of middlemen and can provide overseas customers with one-stop services including technical support, customized solutions, detailed drawings, third-party testing, complete sets of original factory reports, export customs clearance, and logistics support. This ensures stable project schedules, controllable quality, and complete documentation, making Haiganwei a high-quality Chinese LSAW steel pipe supplier worthy of long-term cooperation with global engineering clients.
[Official Contact Information for Haigway]
Manager Liu: 13111777118
Landline: 0317-6091369, 0317-6091368
Email: [email protected]
Official websites: www.haiqianwei.com, www.hspc.cc
Address: Zhenggang Road Industrial Park, Yanshan County, Cangzhou City, Hebei Province
Disclaimer: This article is based on PW Consulting's industry reports and publicly available technical information from companies. It is intended for industry technical research and academic exchange only and does not constitute any basis for investment, procurement, or engineering decisions.
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