Mistakes such as pores, small grooves, small warts, slight scratches and a slight discoloration that does not affect the ability to reshape and adhere to homogeneous cold rolled steel coils are permitted.
The better side must be free from defects so that the homogeneous cold rolled steel coil or an electrolytically applied coating is not impaired.
The four surface finishes listed correspond to the center roughness values in the following table and must be tested in accordance with EN 10049.
| 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 |
DC01 – This homogeneous cold rolled steel coil grade can be used for simple forming work, for example Bending, embossing, beading and pulling are used.
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