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The Difference Between Hot-rolled And Cold-rolled
Jan 07, 2017

1, local buckling of cold-formed steel allowed section, so you can take full advantage of pole after buckling load and local buckling of hot-rolled steel sections are not allowed.
2, causes of residual stress of hot rolled steel and cold-rolled steel are different, so the section distribution are very different. Residual stress distribution of cold-formed thin-walled steel sections are curved, and hot rolled steel or welded steel sections on residual stress distribution is thin.
3, free hot-rolled steel torsional stiffness is higher than cold rolled steel sections, hot-rolled steel is superior to the torsional resistance of cold rolled steel sections