The first category (SPCC) is ordinary cold-rolled boiling steel sheets, usually rolled by boiling steel, the second category (SPCD) is rolled steel sheets, and the third category (SPCE or SPCEN) ) is a cold-rolled ordinary cold-rolled boiling steel sheet for deep drawing.
The ordinary cold-rolled boiling steel sheet grades are classified according to the maximum permissible yield strength and can be subdivided as follows.
| Quality | Testing Direction | Material-No. | Yield Point Rp0,2 (MPa) | Tensile Strength Rm (MPA) | Elongation A80 (In %) Min. | R-Value 90° Min. | N-Value 90° Min. | Old Description |
| DC01 | Q | 1.0330 | ≤280 | 270 - 410 | 28 | St12-03 | ||
| DC03 | Q | 1.0347 | ≤240 | 270 - 370 | 34 | 1,30 | St13-03 | |
| DC04 | Q | 1.0338 | ≤210 | 270 - 350 | 38 | 1,60 | 0,18 | St14-03 |
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