What is spring steel?
Spring steel is steel that has elastic properties and is used to make springs or elastic components. Springs are used under shock, vibration or long-term alternating stress, so spring steel is required to have high tensile strength, elastic limit, high fatigue strength. In the process requires spring steel has a certain degree of hardenability, not easy to decarburization, good surface quality.
Carbon spring steel, that is, the carbon content wc in the range of 0.6% to 0.9% of high-quality carbon structural steel (including normal and higher manganese content).
Alloy spring steel is mainly Silicon-manganese steel, their carbon content is slightly lower, mainly by increasing the silicon content of WSi (1.3% to 2.8%) to improve performance; there are also chromium, tungsten, vanadium alloy spring steel.
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