Brinell Hardness of Hardening Steels in Treated Conditions
Brinell Hardness of Hardening Steels in Treated Conditions
| Steel designation | Hardness in treated condition | ||||
| Matl. Designation | Material Number | Treated for Shearability | Soft-Annealed | Treated for Strength | Treated to Ferrite-Pearlite |
| max. HB | max. HB | HB | HB | ||
| C10E | 1.1121 | – | 131 | – | – |
| C10R | 1.1207 | – | 131 | – | – |
| C15E | 1.1141 | – | 143 | – | – |
| C15R | 1.114 | – | 143 | – | – |
| 17Cr3 | 1.7016 | – | 174 | – | – |
| 17CrS3 | 1.7014 | – | 174 | – | – |
| 28Cr4 | 1.703 | 255 | 217 | 166 … 217 | 156 … 207 |
| 28CrS4 | 1.7036 | 255 | 217 | 166 … 217 | 156 … 207 |
| 16MnCr5 | 1.7131 | – | 207 | 156 … 207 | 140 … 187 |
| 16MnCrS5 | 1.7139 | – | 207 | 156 … 207 | 140 … 187 |
| 20MnCr5 | 1.7147 | 255 | 217 | 170 … 217 | 152 … 201 |
| 20MnCrS5 | 1.7149 | 255 | 217 | 170 … 217 | 152 … 201 |
| 20MoCr4 | 1.7321 | 255 | 207 | 156 … 207 | 140 … 187 |
| 20MoCrS4 | 1.7323 | 255 | 207 | 156 … 207 | 140 … 187 |
| 20NiCrMo2-2 | 1.6523 | – | 212 | 152 … 201 | 145 … 192 |
| 20NiCrMoS2-2 | 1.6526 | – | 212 | 152 … 201 | 145 … 192 |
| 17CrNiMo6-4 | 1.6566 | 255 | 229 | 179 … 229 | 149 … 201 |
| 17CrNiMoS6-4 | 1.6569 | 255 | 229 | 179 … 229 | 149 … 201 |
| 20CrNiMoS6-4 | 1.6571 | 255 | 229 | 179 … 229 | 154 … 207 |