Seamless steel pipes are manufactured by thrusting a piercing mandrel through a steel billet to form a hole, then processed by a rolling mill to a specified diameter and wall thickness. Formed from a single piece of steel, this process ensures the pipe's strength, structural integrity and uniformity.
Seamless steel pipes come in various production varieties designed to meet diverse industry needs with precision. The hot rolled pipes offer thick and durable walls ideal for demanding environments, while the cold rolled pipes provide smoother finishes and exact dimensions for desired applications. For projects requiring peak mechanical performance, the cold drawn seamless steel pipes deliver superior finishes and enhanced mechanical properties. Additionally, the extruded pipes are perfect for exceptionally thick wall requirements. We also offer the specialized top pipe, tailor-made for unique industrial challenges.
Seamless steel pipes are widely used in various applications as geological drilling pipes, petroleum cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automotive, tractor, and aerospace industries due to their ability to withstand higher pressures as they don’t have cracking welded points. They are particularly valuable in applications where high temperatures and pressures can degrade other types of pipes and are suitable for carrying corrosive, chemical agents even in extreme conditions.
| Product Name | Seamless Steel Pipe (SMLS) | |
| Size | 1/2-24,DN15-DN600 | |
| Thickness | SCH40, SCH80, SCH120, SCH160 | |
| Standard | ASTM A106, ASME B36.10M / B36.19M, GB/T8162, GB/T8163 | |
| Material | ASTM | Carbon Steel: ASTM A234WPB, A234WPC, A420WPL6 |
| Alloy Steel: A234WP12, A234WP11, A234WP22, A234WP5, A420WPL6, A420WPL3) | ||
| DIN | Carbon Steel: St37.0, St35.8, St45.8) | |
| Alloy Steel: 17335, 17380, 10488 (1.0566) | ||
| GIS | Carbon Steel: PG370, PT410 | |
| GB | 10#, 20#, 20G, 23G, 20R, Q235 | |
| Packaging | Wooden cases or pallets, or as per client's requirements | |
Plain End
Beveled End
Grooved End
Threaded End
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China Steel Pipe Group offers a wide array of prestressing strands (PC Strand), twisted steel cable composed of high strength steel wires, available in both bonded and unbonded types, designed to significantly enhance the reinforcement of prestressed concrete structures.
Manufactured using sophisticated continuous hot strip mills, hot-rolled steel coils are known for their excellent formability and weldability.
Our ERW round steel pipes are longitudinally welded pipes that are manufactured by forming steel strip into hollow shape, and then welded along the length of the steel pipe.
Spiral welded steel pipes are produced by spirally winding a steel strip at a predetermined angle, forming a tube that is welded along the seam.
Established in 2003, China Steel Pipe Group Corp.,Ltd . is a manufacturer in the steel pipes and PC strand wire industry. Our primary products include ERW pipes, SSAW pipes, LSAW pipes, high-precision welded pipes, prestressed steel wires, and prestressed steel strands. We also offer extensive processing services such as welding, grooving, threading, painting, and coating to meet your specific requirements. Our steel products are widely used in firefighting, cable management, material transportation, steel structures, railings, piling, construction, and machinery manufacturing.
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