SAW Welded Pipe

In terms of material selection, we strictly select high-quality SAW Welded Pipes of grades Q235B, Q345B, and X70 as raw materials to ensure the base material possesses excellent toughness and strength. During the production process, advanced double-sided submerged arc welding technology combined with hot-dip galvanizing anti-corrosion process is employed, resulting in dense and consistent welds with high welding strength, while effectively improving the pipeline's corrosion resistance and service life.

Tianjin Shuncheng Industrial Co., Ltd. produces SAW Welded Pipes using an automatic submerged arc welding process. Two types are available: straight seam submerged arc welding (LSAW, U-O forming of steel plate) and spiral submerged arc welding (SSAW, spiral forming of steel strip). It can withstand high internal pressure and large diameter requirements, providing reliable mechanical properties and sealing performance for long-distance transportation of oil, gas, and water, or as structural pile foundations. Compared to ERW pipes, this welded pipe is suitable for larger diameters (Φ219 - Φ3500mm) and higher pressure applications, effectively reducing leakage risks and extending the service life of projects.

In terms of material selection, high-quality SAW Welded Pipes such as Q235B/Q345B/X70 are used. Advanced double-sided submerged arc welding and hot-dip galvanizing anti-corrosion processes are employed. The production process involves three passivation processes to improve the galvanized product's resistance to alkali corrosion, resulting in dense and high-strength welds. Each finished product is dried, inspected, and finely repaired before packaging and shipping. A wide range of specifications is available, with 236 specifications produced. Customization of large-diameter, thick-walled pipes is also supported.

Why choose Shunchen?

Tianjin Shunchun Industry boasts over 20 years of production technology experience, with a 12-year record of zero defaults and zero annual quality incidents, demonstrating its strength. The company strictly adheres to national production standards and holds ISO 9000, 3A system certifications, and EU CE certification. Through 12 rigorous production processes and a 3-layer full inspection mechanism, it achieves zero quality and safety incidents annually, making its quality trustworthy. Tianjin Shunchun Industry employs over 300 production workers, offering the best value for money among its peers and competitors in the same product category. Choosing Shunchun means enjoying integrated production and sales, a 10,000-square-meter warehouse supporting one-stop procurement service, 24/7 after-sales service, and real-time tracking at 18 key points. Backed by over 2,000 long-term cooperative clients and industry leaders, customized steel procurement is more worry-free and reliable. If you have submerged arc welded pipe needs, please feel free to inquire about the latest quotations, free samples, and engineering solutions. Global export is supported. Our product specifications cover a wide range. In addition to standard sizes, we also support customized production of large-diameter, thick-walled pipes to meet the special needs of different industries.

Product Parameters

(The above specifications are for reference only. Customization is available for larger outer diameters (e.g., Φ3500mm+), thicker walls, and special anti-corrosion layers.)

FAQ

Q1：What are the differences between submerged arc welded pipes and ERW pipes? 

A: Submerged arc welded pipes are suitable for large diameters and high pressures, with thicker and more reliable welds; ERW pipes are suitable for small and medium diameters and low pressures, and are more economical.

Q2：How to choose between straight seam and spiral submerged arc welded pipes? 

A: Straight seam (LSAW) has high precision and is suitable for high-pressure straight pipes; spiral (SSAW) has high material utilization and is suitable for long-distance, large-diameter pipes.

Q3：Do you support 3PE or custom anti-corrosion treatments?

A: Fully support it. We can apply anti-corrosion layers such as FBE, 3PE, and epoxy coal tar pitch depending on the environment.

Q4：What certificates are required for export?

Tianjin Shunchun Industrial's submerged arc welded pipes are your top choice for pressure-resistant and reliable large-scale pipeline and structural projects! Contact us now for customized solutions, quotations, and sample support. Our professional team provides 24/7 online service. We sincerely welcome your inquiries about the latest product quotations and offer free samples and professional engineering solutions. Our company has a complete export service system and can handle global orders. We look forward to cooperating with you for mutual benefit and development.