Cold formed structural hollow sections

Cold formed structural hollow sections are tubular products produced from steel coils. The coil is slitted to strips with appropriate width and then formed by rolling into the shape of the tubular product. The two strip edges, now lying next to each other, are welded together using a high frequency induction process. Further sets of rolling give the final shape and size of the cold formed hollow section. After trimming of the external weld bead and non-destructive testing, the tubes are cut to length and then sent to despatch.