ERW - FAQs

Normally sold as tubes of different shapes, Electric Resistance Welded (ERW) steel is mild steel that has been shaped and welded with an electric charge. While lightweight, these tubes are known for strength, durability, corrosion resistance, and versatility in a multitude of industries.

The basic ERW process sees a sheet of steel formed or cold-rolled into the desired shape before being placed into a machine, where an induction coil passes an electrical current between the edges of the steel while constant pressure is applied to join them.

While High Frequency Welding (HFW) is a type of ERW, they are based on different welding principles. Instead of the resistance heating used by ERW, HFW uses high-frequency currents that produce skin and proximity effects. ERW is known for straight seams and high-quality welds, while HFW is known for its speedy welding process.

ERW is used for an astounding variety of applications in different industries. These tubes are used extensively in the construction, oil and gas, automotive, furniture, agricultural, and mining industries.

Yes, ERW steel can be recycled without compromising its quality.