Guangdong Wire Drawing Factory: Standards for Processing Cold drawn Black Bright Wire
Cold drawn low-carbon steel wire for cold drawn bright wire construction is divided into Grade I and Grade B. Grade I steel wire is mainly used for prestressed steel bars in small prestressed concrete components; B-grade steel wire is generally used for welding or binding skeletons, mesh or stirrups. Cold drawn steel wire is primarily used for prestressed concrete small components such as track gauges, hollow floor slabs, small electrical poles, purlins, door frames, and window frames in rural buildings.
After appropriate heat treatment or cold drawing hardening, cold drawn steel wire has high strength and hardness, high elasticity and fatigue (especially notch fatigue), good cutting function, but poor welding function and cold plasticity. Due to the high carbon content, water quenching is prone to cracking, so double liquid quenching (water quenching+oil cooling) is often used, and oil quenching is commonly used for small section parts. This type of steel is generally used after quenching, medium temperature tempering, or surface quenching. Mainly used for replacing tension springs in the manufacture of wear-resistant parts. Carbon steel wire is a high carbon steel wire that does not contain alloying elements. It is also a type of steel with low cost, good cold and hot workability, and a wide range of applications. Pulling spring steel wire includes high carbon steel wire and is a type of pulling spring steel wire. Anyone who can manufacture tension springs can be called tension spring steel wire, and high carbon refers to high carbon content.
Cold drawn steel wire is commonly used in building materials, and the standards for cold drawn bright wire are also different. Cold drawn steel wire has high strength and can be used in many aspects, most of which are prestressed tendons. This type of steel can be used in places that require strength rather than plasticity.
Article source: Guangdong Wire Drawing Factory http://www.brightcheese.com.cn
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