ERW (Electric Resistance Welded) pipes are a type of steel pipe made by cold-forming flat steel strip into a cylindrical shape and then welding the edges together using high-frequency electric currents. This welding process ensures a strong, continuous seam along the length of the pipe, making ERW pipes suitable for various applications where seamless pipes may not be required.
| Sizes | ||||||
|---|---|---|---|---|---|---|
| 19OD | Round | 19 | 2,2.5 | 3,4 | kg | |
| Square | 15x15 | 3,4 | kg | |||
| 25OD | Round | 25 | 4,5 | 6,7 | kg | |
| Square | 20x20 | 4,5 | 6,7 | kg | ||
| Rectangle | 25x12 | 4,5 | kg | |||
| 31OD | Round | 31 | 5,6 | 7,8 | 10 | kg |
| Square | 25x25 | 5,6 | 7,8 | 10 | kg | |
| 41OD | Round | 41 | 4,4.5 | 5,5.5 | 6,7,9 | kg |
| Square | 32x32 | 4,4.5 | 5,5.5 | 6,7,9 | kg | |
| Rectangle | 40x20 | 6,7 | 40x25 | 6,7 | kg | |
| 48OD | Round | 48 | 5,6,7 | 9,12 | kg | |
| Square | 38x38 | 5,6 | 7 | 12 | kg | |
| Rectangle | 50x25 | 50x15 | 5,6,7 | 9,12 | kg | |
ERW pipes are widely used in industries such as oil and gas transportation, water supply systems, construction, and structural engineering. Their versatility, affordability, and ease of production make them a popular choice for conveying fluids and gases in both domestic and industrial settings.
One of the key advantages of ERW pipes is their uniformity in wall thickness and diameter, which results in improved dimensional accuracy and consistency compared to seamless pipes. This uniformity makes them easier to fabricate, install, and maintain, reducing overall project costs and timelines.
Furthermore, ERW pipes can be manufactured from a variety of steel grades to meet specific performance requirements, including strength, corrosion resistance, and temperature resistance. This flexibility makes them suitable for a wide range of operating conditions and environments.
Overall, ERW pipes offer a cost-effective and reliable solution for various piping applications, combining high performance with ease of production and installation. With their strong weld seams and consistent quality, ERW pipes continue to be an integral component in numerous industries worldwide.
