API 5L X42 SSAW Carbon Steel Pipe 219-3620mm for Oil/Gas Pipelines, Waterworks, Piling & Industrial Conveying – CNAS Lab, In-House Coating, 30m Max Length

For over 30 years, Cangzhou Spiral Welded Steel Pipe Manufacturing Co., Ltd. has been a leading force in China's spiral welded pipe industry. Our API 5L X42 SSAW carbon steel pipe is the preferred choice for oil and gas transmission, municipal water supply, bridge piling, and industrial conveying worldwide.

Designed for long-distance onshore and offshore oil and gas trunk lines, gathering networks, and distribution systems. The spiral weld design distributes stress more evenly – the principal stress on spiral welds is only 75-90% of that on straight-seam welds under the same internal pressure, delivering an extra margin of safety.

Ideal for large-diameter raw water transmission, treated water distribution, and irrigation projects. Available with cement mortar lining to prevent internal corrosion and maintain water quality.

Widely used as structural pipe and driven piling for bridges, wharfs, marine platforms, and high-rise building foundations. Available in extra-long lengths (up to 30m) to reduce field splicing and accelerate project schedules.

Robust enough for abrasive and corrosive industrial environments. Custom coating options provide enhanced protection against wear and chemical attack.

Serves as a reliable material for steel structures, scaffolding, and mechanical framework where strength and dimensional accuracy are critical.

We don't just claim quality – we prove it. Our in-house laboratory is accredited by CNAS (China National Accreditation Service for Conformity Assessment) in compliance with ISO/IEC 17025 standards. Test reports issued by our lab are internationally recognized (accepted by ILAC MRA members across 100+ countries).

We own and operate a dedicated anti-corrosion coating workshop, ensuring full quality control and faster turnaround. No need to coordinate multiple suppliers – we deliver finished pipes ready for their intended environment.

Established in the early 1995s, we are a first-generation pioneer in China's spiral welded pipe industry. With three decades of continuous innovation and quality improvement, we have grown into one of Cangzhou's leading manufacturers – a title we've held for over a decade.

Located in Cangzhou, Hebei Province – the undisputed "Pipe Equipment Capital of China" – we enjoy a complete industrial ecosystem. Cangzhou's annual spiral welded pipe output reaches approximately 1.7 million tons, with our company accounting for a significant share among the top-tier producers. This gives us a cost advantage and supply chain reliability that smaller or non-cluster-based manufacturers simply cannot match.

Our modern production facilities enable us to handle large-volume orders with consistent quality and on-time delivery. Whether you need a single container or a full project shipment, we have the capacity and flexibility to deliver.

Not every project fits standard specifications. We support customized dimensions – from small-batch specialized orders to full-scale production runs – all backed by our engineering team's expertise.

Located within easy reach of Huanghua Port, we offer efficient export logistics. We handle all shipping arrangements, including: