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What is spring steel?

Question :What is spring steel?


In the case of spring steel pressure can be kept deformed, but after pressure turn restitution. It is a medium-carbon steel (carbon content of 0.4-0.95%), either long products (bars, wire), can also be a sheet. The key ingredient to add an important feature of this type of steel alloy that has high resistance to stress, and to determine their final performance of silicon and manganese. However, in practical applications, the requirements of spring steel is different, wherein the valve spring of automobile engine performance requirements of the most high-end. They must maintain accurate operation thousands of times per minute under the ordinary engine compression thousands of hours of use cycle. Most spring steel by the modulation, but sometimes in order to reduce the difficulty of manufacturing large springs may be manufactured by annealing the steel, after the hardening treatment is made.