Cold-drawn steel is commonly divided into cold-drawn special-shaped steel, cold-drawn square steel, cold-drawn round steel, and cold-drawn hexagonal steel. Therefore, today we will explain the classification of cold-drawn steel and the production technology of each classified product. We will go through different types of cold-drawn steel to make specific explanations.This will help everyone to have a comprehensive understanding of this industrial product.

Cold-drawn special-shaped steel

Cold-drawn steel steel is short for complex and special-shaped cross-section steel, and it belongs to cold-drawn steel.Therefore, in terms of name, it is distinguished from simple cross-section steel.Its production process, specifically, is to perform hot-rolling operations on the steel ingots first, and then annealing and other treatments after forming.After that, it is drawn and formed, as well as straightened and cut off, etc., to obtain the finished product.

Cold drawn square steel

Cold-drawn square steel is used at room temperature to forcibly stretch the steel bar with a tensile stress that exceeds the strength of the original steel bar at the yield point, causing the steel bar to produce plastic deformation in order to achieve the purpose of improving the strength of the steel bar at the yield point and saving steel.For the purpose of saving steel and improving the yield strength of steel bars, the practice of stretching steel bars with tensile stresses that exceed the yield strength but are less than the ultimate strength to produce plastic deformation is called cold drawing of steel bars.

Cold drawn round steel

The production process and production technology of cold-drawn round steel are also very important, for this kind of cold-drawn steel.Generally, it is based on hot-rolled round steel, annealing, cold-drawn forming and other operations to obtain cold-drawn round steel.If necessary, polishing and other treatments can also be carried out to improve the surface properties of round steel.

Cold drawn hexagonal steel

For cold-drawn hexagonal steel, the production process usually used is cold extrusion technology, and through the use of molds, cold-drawn hexagonal steel with a smooth surface is obtained.Its products, from the current point of view, are very widely used, mainly in the machinery industry.