Seamless and welded carbon steel pipes. ASTM A106/A53/API 5L standards. A106 Grade B, A53 Grade B, API 5L Grade B. Ideal for oil & gas, structural, and industrial applications.
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- Carbon Steel Pipe
Carbon seamless steel pipe
- The main materials are: A53, A106, A179, A192, A333, A355, API5L, A572, S235JR and S275JR, etc. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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- Carbon Steel Pipe
ASTM A106 Carbon Seamless Steel Pipe
- The outer diameter of hot-rolled seamless pipes is generally larger than 32mm, with a wall thickness ranging from 2.5mm to 75mm. The outer diameter of cold-rolled seamless pipes can reach 6mm, and the wall thickness can be as low as 0.25mm. For thin-walled pipes, the outer diameter can reach 5mm, and the wall thickness is less than 0.25mm. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163…
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- Carbon Steel Pipe
Black Steel Pipe
- Black Steel Pipe retains mill scale on its surface without galvanization, offering high strength, excellent weldability, and cost-effectiveness. It is the most widely used carbon steel pipe. Material Grades: Q195/Q235/Q345/20#, A53 GR.B/API 5L GR.B, S235JR/S355JR Specification Range: Outer diameter 21.3-610mm (1/2“-24”), wall thickness 1.8-20mm, length 4-12m (custom lengths available) Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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- Carbon Steel Pipe
Boiler Pipe
- Boiler tubes are seamless steel pipes used for manufacturing boiler pressure components and steam pipelines, featuring excellent resistance to high temperatures, high pressures, and oxidation. Material grades: 20G, 15CrMoG, 12Cr1MoVG, P91, P22, SA106B/C, etc., conforming to standards such as GB/T 5310, ASME SA106, and EN 10216. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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- Carbon Steel Pipe
Carbon Steel Square Pipe
- Carbon steel square tubes are square-section steel pipes manufactured by cold-bending or hot-rolling carbon steel strip and then high-frequency welding. They feature light weight, high strength, and strong load-bearing capacity. Material grades: Q195, Q235, Q345, 20#, SS400, S235JR, etc. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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- Carbon Steel Pipe
ERW Pipe
- ERW steel pipe, featuring high dimensional accuracy and uniform wall thickness. Materials: API 5L GR.B/X42-X70, Q235/Q345, J55/N80. Outer diameter: 21.3-660mm, wall thickness: 1.0-25.4mm, length customizable. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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- Carbon Steel Pipe
Mild Carbon Steel Q235Black welded steel pipe
- The main materials are: A36, A333, A355, A537, A572, S235JR, S275JR, SS400, Q235, 4140, 4130, 4340, 1018, 1025, 1045, En8 and En9, etc. Email：admin@zhongtangsteel.cn WhatsApp：+86 15864006163
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