Wire rod production line

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Wire rod rolling refers to the rolling process used to produce wire rods. It is a complex deformation process, with the wire rod mill being its main equipment.

A wire rod mill is a specialized mill designed for rolling wire rod (i.e., wire). Wire is a type of structural steel with a relatively small cross-sectional size; it is rolled from billets into finished products, involving a high total elongation ratio. Typically, each pass through the mill produces only a single reduction, which is why wire rod mills have a large number of stands and highly refined operational divisions among hot-rolled structural steels. Continuous wire rod mills usually consist of 21 to 28 stands, divided into roughing stands, intermediate stands, and finishing stands; sometimes the intermediate stands are further subdivided into first and second intermediate stands. The structure and layout of wire rod mills have consistently evolved toward higher speeds, continuous operation, torsion-free processing, single-strand configurations, combined structures, mechanization, and automation.

Wire rod refers to steel that has been hot-rolled on a wire rod mill and delivered in coil form, typically with diameters ranging from 5.5 to 14 mm. Wire rod is primarily used in construction and for drawing steel wires and related products. Due to the need for manufacturing standard components, many cold-drawn billets directly utilize wire rod coils, which offer advantages such as fewer drawing heads compared to straight bars, stronger continuity, and higher drawing efficiency.

Most commonly available wire rods have circular cross-sections, while those with non-circular cross-sections include elliptical, square, and threaded shapes, though these are produced in much smaller quantities.