S235 JR Hot-Rolled Spiral Welded Pipe

Introduction to S235 JR Hot-Rolled Spiral Welded Pipe

S235JR hot-rolled spiral welded pipe is a type of pipe with high cost-effectiveness, large diameter, and excellent structural performance as its core advantages. It perfectly combines the mechanical reliability of S235JR structural steel with the manufacturing flexibility of spiral welding technology, making it an indispensable choice for large-scale infrastructure, municipal water supply, and structural engineering projects.

Regarding the Hot Rolling and Spiral Welding Processes of S235 JR Welded Pipes

Hot rolling and spiral welding are two core processes in steel pipe manufacturing.

1.,Hot rolling refers to rolling steel billets above the recrystallization temperature to obtain a uniform microstructure and the required plate shape and thickness. This process eliminates casting defects and improves the material's plasticity and toughness.

2.,Spiral welding involves spirally coiling hot-rolled steel strips at a fixed angle and then using submerged arc welding technology to weld the continuous seams on both the inner and outer sides, resulting in pipes with large diameters, high strength, and excellent radial pressure resistance.

The combination of these two processes achieves the goal of efficiently producing large-diameter, high-rigidity steel pipes using relatively narrow hot-rolled steel strips.

Applications of S235 JR Spiral Welded Pipe

1,Large-scale fluid transportation systems: Its most classic application is as a long-distance pipeline for transporting media such as oil, natural gas, and water, especially suitable for large-diameter, medium-to-low pressure transportation scenarios.

2,Building structures and foundation engineering: Widely used in the main load-bearing structures such as columns and trusses in industrial plants and commercial venues, and is also a key material for bridge piers, dock pile foundations, and various building pipe piles.

3,Industrial and municipal facilities: Used in mines for transporting slurry, in power plants for circulating water pipes, and in municipal construction for drainage networks, pipe gallery supports, and other infrastructure, demonstrating its high versatility.

About us

We are a steel export trading company certified by Alibaba and professionally audited by SGS. Leveraging stable supply chain resources and an international business team, we specialize in the cross-border supply of structural pipes, galvanized pipes, fluid pipes, and other products. We have established solid partnerships with clients in multiple regions worldwide, committed to providing the international market with standard-compliant certified steel products and efficient, reliable export services.

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