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A railway spring is heat treated and painted with zinc chromate primer that increase the spring’s strength, hardness and durability.
Posted by Tradeindia user (23-11-2021)
Primary and secondary suspension system of a train is equipped with helical springs, such as steel coil spring (precision coiled, compression, torsion and tension springs), leaf spring, disc spring, air spring, and others.
A railway spring is IS-marked and should have elastic properties. Chromium vanadium (50CrV4) is considered the best material for these springs. Other desirable materials are stainless steel, hasteloy, inconel and monel.
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