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What is Hot Rolled Steel?
Hot-rolled steel is created by heating steel to an extremely high temperature where it’s rolled and formed into long thin strips. Heating steel past 1000°F makes it more malleable for shaping. After it’s developed into long strips, it’s cooled with water and formed into coils. Cooling the steel with water helps the steel harden. When it hardens, it shrinks without uniform, which means there is little control over the final size and shape of the finished product. Additionally, hot rolled steel has a scaly finish which can affect the product’s appearance. If that’s of concern, cold-rolled steel might be a better choice. Cold rolled steel has a smooth finish. You can also address the finish of hot rolled steel by using several techniques to remove the scales, such as grinding, pickling, or sand-blasting.
