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Welded pipe, also known as welded steel pipe, is a versatile structural product.
Welded pipe is manufactured from steel plate or strip steel after roll forming and welding. The process includes forming, welding, and finishing. Using hot-rolled or cold-rolled strip as raw material, the steel is bent into a tube with a straight or spiral seam. Heat sources then fuse the edges to achieve high structural strength, followed by calibration, straightening, heat treatment, and testing.
| Tube for Machining Structure | |||||
|---|---|---|---|---|---|
| Variety Classification | OD (mm) | WT (mm) | Steel Grade | Standard | Application |
| Structural Pipe | 42~760 | 4~120 | 20#, 45#, Q345B, Q390 | GB/T 8162 | General & Mechanical Structure |
| Vehicle Tube | 45~245 | 4~35 | SAE1527, 40Cr, 45Mn2 | YB/T5035 | Automobile Axle Sleeves |
| Hydraulic Prop | 42~760 | 4~120 | 27SiMn, 30CrMnSiA | GB/T 17396 | Mining Equipment & Cylinders |
| Fluid Pipe | 42~760 | 4~120 | 20#, Q345 | GB/T 8163 | Fluid Conveying |
As a one-stop steel solution provider, we specialize in high-quality carbon steel plates, stainless steel, and structural profiles including H-beams, square tubes, and round pipes. All products meet international standards such as ASTM, JIS, and EN. We provide comprehensive fabrication services including cutting, bending, and galvanizing. With thousands of tons in stock, we ensure rapid delivery within seven days to over 40 countries worldwide.
