Introduction
Alloy spring steel wire is a kind of steel wire with high elasticity, high strength and good fatigue resistance. The elasticity and strength of different materials of the alloy spring steel wire are different. Therefore, the alloy spring steel wire is widely used in the manufacture of valves, switches, locks and so on.
Alloy spring steel wire can be divided into three types: high-carbon steel wire, medium-carbon steel wire and low-carbon steel wire. According to the relevant national standards, the general requirements of American SAE and German DIN standard alloy spring steel wire are GB / T5218-1999: 0.2-3.0mm (including 0.2mm, 3.0mm). Generally, all kinds of alloy steel, high-carbon steel, medium-carbon steel, low-carbon steel are all rolled out, heat-treated, copper-plated and other processing.
Classification
1. High carbon spring steel wire
High carbon steel wire is a kind of alloy steel wire with high elasticity, high strength and good fatigue resistance. Its spring steel grade is 1C, 2C and 3C. Because its chemical composition is relatively high, the overall performance of this type of wire is good.
2. Medium carbon spring steel wire
Medium carbon steel wire is also a kind of alloy steel wire with high elasticity, high strength and good fatigue resistance. Its spring steel grade is 1B, 2B and 3B. Generally speaking, the chemical composition of medium carbon steel wire is lower than that of high carbon steel wire, so the overall performance of this type of wire is lower and the cost is relatively low.
3.Low carbon spring steel wire
Low carbon steel wire is also a kind of alloy steel wire with high elasticity, high strength and good fatigue resistance. Its spring steel grade is 4A, 5A and 6A. Generally, the chemical composition of low carbon steel wire is lower than that of medium carbon steel wire and low carbon steel wire cost is relatively low while strength and fatigue properties are high.
Application
1. High carbon spring steel wire
High carbon spring steel wire is mainly used in the manufacture of various precision spring and torsional spring. Because of its high elasticity, high strength and good fatigue resistance, it has been widely used in the manufacture of switches, valves, locks and other machinery and equipment.
2. Medium carbon spring steel wire
Medium carbon spring steel wire is mainly used in the manufacture of various coil spring and expansion spring. Due to its less expensive and relatively good overall performance, it has been widely used in the manufacture of auto parts, light industrial machinery and other machinery and equipment.
3.Low carbon spring steel wire
Low carbon spring steel wire is mainly used in the manufacture of various nonlinear springs and nonuniform springs. Due to its high strength and good fatigue resistance, it has been widely used in the manufacture of motor parts, electrical equipment and other machinery and equipment.
Conclusion
Alloy spring steel wire is a kind of steel wire with high elasticity, high strength and good fatigue resistance. With the development of modern industry, its production technology has been constantly improved and its application has been continuously expanded. Its three types：high-carbon steel wire, medium-carbon steel wire and low-carbon steel wire have respectively become a kind of indispensable material in the manufacture of various industrial products.
