440B / 1.4112
Main fields of application of 1.4112
Surgical instruments, cutting tools: (drills, mills etc.) screwdriver.
Chemical composition of 1.4112
| Cr | 17,00 - 19,00 |
|---|---|
| C | 0,85 - 0,95 |
| Si | ≤ 1,00 |
| Mn | ≤ 1,00 |
| P | ≤ 0,040 |
| S | ≤ 0,150 |
| Mo | 0,90 - 1,30 |
| V | 0,07 - 0,12 |
| Fe | rest |
Mechanical properties of 1.4112
| annealed | specification values |
|---|---|
| tensile strength Rm | ≤ 840 MPa |
| hardness HB | 30 ≤ 265 HRC |
| after hardening | specification values |
| hardness Rockwell HRC | 55-57 |