Electric resistance welding of ERW Carbon Steel Pipes involves clamping the workpiece between two electrodes and applying an electric current. The current flows through the workpiece's surface and adjacent areas, generating heat due to electrical resistance. This heat brings the metal to a molten or plastic state, allowing for the creation of a metallic bond.
Welding Advantages of ERW Carbon Steel Pipes:
1. High Efficiency
ERW carbon steel pipes can be manufactured quickly and in large volumes, making them an economically favorable choice for extensive projects.
2. Consistent Quality
The ERW welding process ensures a strong and uniform weld seam, providing a structurally sound and dependable pipe that meets stringent standards.
3. Smooth and Clean Finish
The welding process produces a seamless and neat weld surface, improving the aesthetics and integrity of the pipe.
4. Cost-Effectiveness
Compared to other welding techniques, ERW welding is more economical, offering a budget-friendly solution for numerous piping projects.
5. Versatility
Suitable for a variety of applications across different sectors, ERW carbon steel pipes are known for their flexibility and adaptability to various uses.
Advantages of ERW Carbon Steel Pipe:
(1) High dimensional accuracy. ERW steel pipe diameter and wall thickness than the seamless steel pipe deviation is much smaller, because of the high dimensional accuracy of strip rolling and pipe material control.
(2) Good mechanical properties. As the ERW steel pipe with easy control of rolling, with the welding technology and on-line heat treatment technology, the performance of the weld can be controlled, so straight seam welded steel pipe elongation than seamless steel pipe 8% -10% higher, which Is because the straight seam electric-welded pipe carbon content of less than 12% lower than the seamless tube.
(3) ERW steel pipe with high concentricity, uniform wall thickness. After heat treatment, the microstructure is uniform and has a strong ability to collapse.
(4) As the extension of the steel is good, the flattening test of the straight seam steel pipe is better than the seamless test.
(5) The impact toughness of ERW steel pipe is higher than that of seamless steel pipe.
(6) Longitudinal resistance welded tubes are not welded to different metals, but they also undergo rigorous on-line heat treatment, and therefore the basic properties of welding and material properties.
Tips: ASTM A53 Grade B ERW Pipe is a carbon steel pipe that comes under the ASTM A53 specification. The pipes range in dimensions according to the ASTM, ASME and API standards. The sizes of the pipes range from ½ inches to 24 inches in nominal bore sizes.
