May 16, 2018 · According to the API 5L and ISO 3183 specification. PSL 2 pipes in welded process, the HFW welding is a mandatory need for ERW steel pipes. As it is an improvement from the inherent problems of hardness. It lack of fusion and susceptibility of stress corrosion cracking (SCC). ERW steel pipe includes HFW steel pipe
Differences between ERW Steel Pipe and HFW Steel PipeAccording the API 5L and ISO 3183 specification, for PSL 2 pipes in welded process the HFW welding is a mandatory requirements for ERW steel pipes. As it is an improvement from the inherent problems of hardness, lack of fusion and susceptibility of stress corrosion cracking (SCC).
CSPG is one of the erw or hfw spiral steel pipe manufacturers and suppliers in China, high frequency resistance welding (HFW) steel pipe is a kind of resistance welding steel pipe without filling metal. Its external surface is smooth, so it is not easy to observe the welding seam position from the external surface, and the size accuracy is high, so it is easy to be coated with anti-corrosion.
ERW Welded Steel Pipes, ERW Welded Steel Pipes suppliers Stainless Steel ERW Welded Pipes, SS ERW Welded Pipes, ERW Carbon Steel Pipes Manufacturer & Exporter. ASTM A53, GB/T9711, BS 7, L175, L210, L245, L290, L390, L415 ERW Steel Pipe and Tube, ERW Welded PipeERW Steel Pipe(Electric Resistance Welding Pipe), A53 ERW Pipe, ERW Carbon Steel Pipe. Sizes:Out Diameter:1/2"-24" Wall Thickness:1.65-20mm Length :3-12m, or according to customers requirement End :Plain End, Beveled End, Treaded