The difference between hot and cold rolled steel plates
1. The cold-rolled steel allows local buckling of the section, so that the bearing capacity of the bar can be fully utilized; Hot rolled steel does not allow local buckling of the section.
2. The causes of residual stress in hot-rolled steel and cold-rolled steel are different, so the distribution on the cross section is also very different. The residual stress distribution on the section of cold-formed thin-wall steel is curved, while the residual stress distribution on the section of hot-tied or welded steel is thin film.
3. The free torsional rigidity of hot-rolled steel is higher than that of cold-rolled steel, so the torsional resistance of hot-rolled steel is better than that of cold-rolled steel.
4. Cold plate adopts cold binding processing surface without oxidation skin, good quality. The surface of the hot plate has oxide skin and the thickness of the plate has lower difference.
If you have more needs and questions about steel, please contact us!
GNEE Group receives visiting customers
GNEE office environment