1、 The characteristics of cold drawn steel

Cold drawn steel is a type of cold worked steel formed by pulling and cooling hot-rolled steel billets at room temperature. Compared to hot-rolled steel, cold drawn steel has the following characteristics:

1. High strength: During the drawing process, the grains of cold drawn steel are elongated and rearranged, resulting in a denser lattice and higher strength.

2. Hardness: Due to plastic deformation of the steel surface during the drawing process, the hardness of cold drawn steel also increases accordingly.

3. Toughness: The drawing process is accompanied by plastic deformation of the steel, making cold drawn steel have better toughness and stronger impact resistance.

4. Wear resistance: The surface of cold drawn steel presents steel patterns, increasing surface hardness and wear resistance.

2、 Will cold drawn steel rust

The rusting problem of cold drawn steel mainly depends on the environmental conditions in which it is located. Under some conventional temperature and humidity conditions, cold drawn steel is prone to oxidation and rusting. The iron element in cold drawn steel combines with oxygen to form a protective layer of iron oxide (FeO). However, if the protective layer is subjected to mechanical damage, corrosion or corrosive substances, the protective layer will be damaged, leading to rusting on the surface of cold drawn steel.

3、 Rust prevention measures for cold drawn steel

To protect cold drawn steel from oxidation and rust, the following are some simple rust prevention measures:

1. Surface coating: By coating a layer of metal or non-metal protective film on the surface of cold drawn steel, the surface is protected from mechanical scratches and chemical erosion.

2. Closed rust prevention: Cold drawn steel is stored underground or in a closed environment to avoid contact with air and moisture.

3. Applying anti rust paint: By applying a layer of anti rust paint on the surface of cold drawn steel, the surface is protected from oxidation and corrosion.

【 Conclusion 】

Cold drawn steel has advantages such as high strength, hardness, toughness, and wear resistance, but it is prone to oxidation and rusting under certain conditions. It is necessary to take some simple rust prevention measures to prevent cold drawn steel from rusting.