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Welded steel pipe production process is simple, high production efficiency, variety specifications, less equipment investment, but the general strength is lower than seamless steel pipe
| Size Range | 10*10mm 500mm*50mm | |||
| Wall Thickness | 0.8-25mm | |||
| Steel Grade | Q195 Q235 Q345 | S235JRH S275J2H S355J2H | STKR400 STKR490 | GR A GR B |
| Standerd | GB/T 6728-2002 | DIN EN10210 | JIS G3466 | ASTM A500 |
| Surface | Black Painted,Hot Dip Galvanized.etc |
1. Low production cost: Compared with seamless pipe, welded pipe production cost is lower, because it is by welding metal plate or strip, no additional processing process.
2. Various specifications: Welded pipes can be produced into various specifications and sizes of pipes to meet the needs of different occasions.
3. Low strength: Due to the heating and cooling of the welded pipe during the production process, the structure of the welded pipe is generally more fragile, so the strength of the welded pipe is usually lower than that of the seamless pipe.
4. The weld is vulnerable to corrosion: The weld is the weakest part of the pipeline and may be vulnerable to corrosion, so anti-corrosion measures need to be taken in the application
