First details with the mechanical values of cold rolled steels can be found in the table above. In addition, you can download the complete excerpt of our Quality Guide (QG) with the mechanical and chemical values for the above mentioned grades via the previous link.
| Surface finish | characteristic | Average surface finish (boundary value: 0,8mm) |
|---|---|---|
| Special flat | b | Ra ≤ 0,4 µm |
| flat | g | Ra ≤ 0,9 µm |
| Matt | m | 0,60 µm ˂ Ra ≤ 1,9 µm |
| rough | r | Ra ≤ 1,6 µm |
Due to no heating, there are no pitting and scale defects in hot rolling. The surface quality is good and the surface finish is high. Moreover, the dimension precision of cold rolled products is high.
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