ERW steel pipes are manufactured using the process of high-frequency electrical current passing through the metal, creating heat that fuses the edges of the steel together. On the other hand, LSAW steel pipes are produced by submerging the steel plate in a welding zone, where an arc is struck and the edges of the plate are melted and fused together. In terms of the welding technique, ERW pipes use electrical resistance while LSAW pipes use submerged arc welding. Additionally, LSAW pipes are typically used for larger diameter and thicker wall thickness applications, while ERW pipes are commonly used for smaller diameter and thinner walls.
ERW steel pipes are manufactured by high-frequency electrical currents passing through the metal, resulting in a welded joint. On the other hand, LSAW steel pipes are produced by submerging a metal plate into a welding zone, creating a welded joint through the use of a welding arc. The main difference lies in the welding process, with ERW pipes being more suitable for small to medium-sized diameters, while LSAW pipes are commonly used for larger diameter and thicker-walled applications.
ERW (Electric Resistance Welded) steel pipes are manufactured by passing an electric current through the steel strip or plate to generate heat, which results in the fusion of the edges together to form a pipe. On the other hand, LSAW (Longitudinal Submerged Arc Welded) steel pipes are produced by submerging the steel plate or strip into a molten bath of welding flux and then initiating the welding process.
The main difference between ERW and LSAW steel pipes lies in their manufacturing processes and the resulting pipe structure. ERW pipes have a longitudinal seam along their length, created by the fusion of the edges, while LSAW pipes have a single longitudinal seam that is formed by the submerged arc welding process. This difference in welding techniques gives LSAW pipes a higher degree of dimensional accuracy and stability, making them suitable for applications that require precise measurements and strong structural integrity.
Additionally, LSAW pipes have a larger diameter range and can be produced in larger sizes compared to ERW pipes. This makes LSAW pipes well-suited for conveying large volumes of fluid or gas, such as in oil and gas pipelines. Conversely, ERW pipes are commonly used in applications that require smaller sizes and lower pressure requirements, such as water supply systems or structural applications.
In summary, the main differences between ERW and LSAW steel pipes lie in their manufacturing processes, resulting pipe structure, size capabilities, and applications.
