Spring steel performance requirements

- Jan 13, 2018 -

Spring in the impact, vibration or long-term use under the stress, so the requirements of spring steel with high tensile strength, elastic limit, high fatigue strength. In the process of spring steel requires a certain degree of hardenability, not easy decarburization, surface quality carbon spring steel that is carbon content of WC 0.6% -0.9% range of high-quality carbon structural steel. Alloy spring steel is mainly manganese-manganese steel, their carbon content is slightly lower, mainly by increasing the silicon content Wsi to improve performance; In addition there are 硌, tungsten, vanadium alloy spring steel. In recent years, based on China's resources, and in accordance with the requirements of new technologies for automobile and tractor design, a new type of steel with boron, niobium, molybdenum and other elements added to silicon manganese steel has been extended to prolong the service life of the spring and improve the spring quality .