With the rapid development of society, when conventional shapes and sizes of shaped steels cannot meet actual needs, special-shaped steels have emerged. There are many different categories of cold-drawn special-shaped steels.Some of them are divided according to different materials, and some are distinguished according to different uses.Let's introduce the common categories and types in detail：

1. Cold-drawn special-shaped steel for mining

1. Backing plate steel

Cold-drawn special-shaped steels for mining can be specifically divided into pad-shaped steels for mining machinery, which are made of 45#steel.；

2. Ratchet claw steel, which is used for ratchet claw steel for rock drill parts. The material used is 20Cr steel.；

3. Chain lead steel, which is used in the chain lead steel commonly used in mining machinery parts, 35CrMo steel is its main raw material.

2. Cold-drawn special-shaped steel for automobiles

1. Support tooth steel, specially used for ratchet handle support teeth of automobile wrenches；

2. Semi-circular steel is used more in the field of automobile and steam turbine manufacturing, and its material selectivity is relatively wide. 45#, 45B, and 1Cr13 steel are all available.

3. Pin shaft steel, used in automobile pin shafts, often uses 45#steel as the main material.In addition, there are cam-shaped steels.It is a steel product that makes automobile pins and automobile engine parts.

3. Cold-drawn special-shaped steel for textile machinery and electrical machinery

There are many varieties of cold-drawn special-shaped steels included in this, including cloth-toothed steel, chain section steel, rounded flat steel, knife box mouth flat steel, knife-blade steel, oval steel, square hook steel, trapezoidal steel, semicircular steel, rack steel, elevator rail steel, etc., are indispensable production materials for textile machinery.