First, the cold-rolled steel "term" describes the variety of finishing processes. Steel cold roll forming involves creating metal shapes just at above room temperature. This is rolled steel which has passed further processing through a cold roll forming machine. This means once the hot rolled steel has been cooled, it's re-rolled right at room temperature to eventually achieve better surface qualities and more exact dimensions. Cold rolling is achieved when a metal is below there crystallization temperature. And this is a temperature where steel grain structure is altered.In simple terms, cold-rolled steel describes finishing process range, but technically the cold-rolled applied to sheet which undergoes compression between rollers only.
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