The spring steel wire is usually used to make spring. Spring is an important machinery foundation component of various electrical and mechanical equipments. It is widely used in various fields of national economy. With the development of cars, tractors, internal combustion engines, motorcycles and all kinds of machinery industry, the spring varieties gradually increased, the number is increasing. Consequently, the spring steel wire's varieties are also increased. Because that the spring steel wire is the main material of making spring.
In the production of wire rod products, spring steel wire occupies an important part both in quantity and variety. The quantity of spring steel wire takes up more than half of high-quality steel wire, about 25 million tons or so. And the variety can be divided into more than 10 species according to different production processes, chemical composition and purpose.
By the production process, spring steel wire can be divided into cold drawing spring steel wire and oil tempered spring steel wire; by the chemical composition, spring steel wire can be divided into carbon and alloy spring steel wire; by the purpose of spring steel wire, it can be divided into non-mechanical, mechanical, valve spring steel wire. Spring steel wire can adapt in the use of environment with different temperature. Its high output, varieties and extensive purpose are incomparable.