api 5l x52 psl2 pipe

Asia’s First 30m SSAW Pipe Producer | CNAS-Certified Lab | 13 Integrated Production Lines — One-Stop Quality Assurance

API 5L X52 pipe, also called L360 pipe, is named after its minimum yield strength of 52 Ksi (360 MPa). It is a medium-grade specification within the API 5L and ISO 3183 standards, widely used for oil and gas pipeline transmissions. As one of the flagship products of Cangzhou Spiral Steel Pipe Manufacturing Group Co., Ltd., our X52 SSAW pipes are manufactured using double-sided submerged-arc spiral welding technology. Backed by our CNAS-accredited laboratory and 13 integrated production lines covering everything from steel coil forming to anti-corrosion coating, we are the first manufacturer in Asia capable of producing spiral welded pipes up to 30 meters in length. This fully integrated in-house process eliminates the quality risks typically associated with fragmented multi-factory processing, ensuring you receive consistent, reliable pipe performance for your critical pipeline projects.

Scope divided by product specification level: PSL1, PSL2, sour service:

When the finished product of Wuzhou Brand API 5L X52 spiral steel pipe is delivered, the manufacturing process adopts the spiral double-sided submerged arc welding process.

Our Manufacturing Edge: With 13 parallel production lines covering the entire process from uncoiling to FBE/3PE coating, and Asia's first 30-meter SSAW pipe production capability, we offer you reduced on-site welding joints and minimized logistics costs. Our CNAS-certified testing laboratory ensures every pipe meets stringent API 5L PSL2 requirements, giving you full confidence in product quality.

API 5L Pipe Data Sheet, other grades specifications in API 5L.

a. Based upon product analysis. For seamless pipe wth t> 20.0mm (0.787in), the CE limits shal be agreed. The CEIIW limits apply if C>0.12 % and the CEpcm limits apply if C ≤0.12%.

API 5L Grade X52 Pipe

The maximum chemical content of API 5L X52 (L360) PSL2 spiral welded steel pipe is different from that of PSL1; And mechanical strength, more stringent.

When you choose X52 (also known as L360) from API 5L, you will find that its minimum yield strength is 52220 psi (360 MPa) and tensile strength is 66700 psi (460 MPa) - it is these two values that determine why it is called X52 or L360. Compared to X46, X42, and Grade B, X52 has superior performance, making it the most common material selection requirement in oil and gas pipeline systems, second only to the highest grade.

For X52 pipes, you need to note that whether you choose seamless pipes or welded pipes (including SSAW ERW LSAW), their pressure rating, tensile strength, and yield strength are the same and do not vary depending on the manufacturing process.

When your operating conditions require higher pressure, you need to increase the wall thickness of the steel pipe accordingly, or switch to a higher grade material in the API 5L standard.

Item: 4,800 meters of carbon steel pipe, material grade API 5L X52 PSL2 (equivalent to ISO 3183 L-360N), outer diameter 20 inches, manufactured using the spiral submerged arc welding (SSAW) process, with a wall thickness of 0.562 inches. The outer surface of the pipe must be coated with a fusion-bonded epoxy (FBE) powder coating or an equivalent adhesive epoxy external coating.

Why partner with us? Our integrated manufacturing base in Cangzhou eliminates the need for you to coordinate between separate factories for forming, welding, and coating — all processes are completed in-house across our 13 production lines. As Asia's pioneer in 30-meter SSAW pipe production, we help you reduce field weld counts by up to 50%. Combined with our CNAS-accredited laboratory's rigorous testing regime, we deliver pipes that perform reliably in the most demanding oil and gas environments.