As outlined by Metalbook in their article, “An Introduction to Hot-Rolled Steel”, hot-rolled steel is a type of steel processed at extreme temperatures—often exceeding 1700°F—to shape and form it with greater flexibility and efficiency.

The process begins with billets, large rectangular pieces of metal, which are heated and then passed through rollers to be flattened into coils. These temperatures exceed the steel’s recrystallization threshold, allowing it to be reshaped without breaking. After rolling, the steel is left to cool in ambient air, which affects its microstructure and introduces internal stresses.

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Article with all rights reserved, courtesy of Metalbook — https://www.metalbook.com/