Changsha Xiangjia Metal Materical Co., Ltd.

High-frequency welded pipes , also known as HFW pipes, are manufactured from hot-rolled coils. The production begins with the coils being shaped by a forming machine, after which high-frequency electric currents are applied. This method utilizes the skin effect and proximity effect of the electric current to heat the edges of the pipe until they melt. When the molten edges come into contact, they are fused together under pressure via squeeze rollers, resulting in a solid, continuous pipe. The advantage of high-frequency welded pipes lies in their ability to produce pipes with a smooth, high-quality seam, resulting in excellent mechanical properties. They are often used in applications where strength and reliability are paramount, such as in oil and gas pipelines, structural supports, and various other industrial sectors. Straight Seam Welded Pipes Straight seam welded pipes  encompass a broader category of welded pipes, which includes both double-sided submerged arc weld (DSAW) pip...

In the realm of industrial manufacturing and piping solutions, choosing the right type of pipe is crucial for ensuring efficiency and durability. Two common types of welded pipes are   high-frequency welded pipes   and   ordinary welded pipes . While both serve the same primary applications, they differ significantly in their welding processes, strength, cost, and application fields. This article delves into the key differences between these two types of pipes, with a special focus on ERW steel pipes. Welding Process The most prominent difference between high-frequency welded pipes and ordinary welded pipes lies in their welding techniques.  High-Frequency Welded Pipes: The welding process for high-frequency welded pipes utilizes high-frequency induction heating. This involves the application of high-frequency electric currents that generate heat through skin and proximity effects. The edges of the pipe billets are heated and melted before being fused together under ...