5832-4 / CoCrMo
Implant alloy with highest requirements at corrosion resistance, biocompatibility and fatigue strength.
Main fields of application of alloy CoCrMo
Joint replacement for hip knee, shoulder etc. marrow-nails and dental application. This material can also be used for watch cases as it has an outstanding polishing ability and corrosion resistance.
Chemical composition of alloy CoCrMo
| C | Si | Mn | Cr |
|---|---|---|---|
| % | ≤ % | ≤ % | ≤ % |
| 0.35 | 1.0 | 1.0 | 26.0-30.0 |
| Mo | Ni | Co | Fe | N |
|---|---|---|---|---|
| % | % | ≤ % | ≤ % | % |
| 5.0-7.0 | 1.0 | rest | 0.75 | 0.25 |
Characteristics of alloy CoCrMo
| annealed | specification values |
|---|---|
| tensile strength Rm | ≥ 750 MPa (ISO 5832-12) ³ 897 MPa (ASTM F-1537) |
| elongation A | ≥ 16% |
| hot worked | specification values |
| tensile strength Rm | ≥ 1000 MPa (ISO 5832-12) + (ASTM F-1537) |
| elongation A | ≥ 12% |
| cold worked | specification values |
| tensile strength Rm | 1172 MPa (ISO 5832-12) + (ASTM F-1537) |
| elongation A | ≥ 12% |