Definition: Cold Rolled Steel is defined as the group of steels which has been passed through a rolling mill below its recrystallization temperature. The recrystallization temperature of steel is from four hundred centigrade to seven hundred centigrade. Recrystallization of steel is a microstructural phenomenon which is achieved by heating on the other hand distorted grains are substituted by a new combination of grains that nucleate and propagate till the parent grains have been completely transformed. Hot Rolled Steel is the type of steel that is rolled at the recrystallization temperature. Cold rolling is performed usually on hot rolled steels. Important
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