| 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 |
The grades are classified according to the maximum permissible yield strength and can be subdivided as follows.
DC01 – This grade can be used for simple forming work, for example Bending, embossing, beading and pulling are used.
DC03 – This grade is suitable for forming requirements such as Deep drawing and difficult profiles suitable.
DC04 – This quality is suitable for high deformation requirements.
DC05 – This thermoforming grade is suitable for higher forming requirements.
DC06 – This special deep drawing quality is suitable for the highest deformation requirements.
DC07 – This super deep drawing quality is suitable for extreme deformation requirements.
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