| DIN 1045/neu EC2 | C12/15 | C16/20 | C20/25 | C25/30 | C30/37 | C35/45 | C40/50 | C45/55 | C50/60 |
| fck | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
| α * fck | 10.2 | 13.6 | 17.0 | 21.3 | 25.5 | 29.8 | 34.0 | 38.3 | 42.5 |
| DIN 1045/alt | B15 | B25 | B35 | B45 | B55 |
|
|||
| βR DIN 1045/alt |
10.5 |
|
17.5 | 23.0 | 27.0 |
|
30.0 |
|
|
| βR DIN 4227 |
- |
|
15.0 |
|
21.0 | 27.0 |
|
33.0 |
|