We stock and sell ASTM F1537 Cobalt Chrome in round bar form.
ASTM F1537 is a cobalt chrome molybdenum alloy used in medical and surgical devices requiring high fatigue strength such as orthopedic total joint replacement.
Chemical Data, Mechanical Data and Specifications for ASTM F1537 Cobalt Chrome.
| Chemical Range for ASTM F1537 Alloy 1 (UNS R31537) | ||
|---|---|---|
| Element | Minimum | Maximum |
| Carbon | -- | 0.14 |
| Chromium | 26.0 | 30.0 |
| Cobalt | Balance | -- |
| Iron | -- | 0.75 |
| Manganese | -- | 1.00 |
| Molybdenum | 5.00 | 7.00 |
| Nickel | -- | 1.00 |
| Nitrogen | -- | 0.25 |
| Silicon | -- | 1.00 |
| Typical Mechanical Properties for ASTM 1537 | |||
|---|---|---|---|
| Form | Tensile Strength | Yield Strength | Elongation at Break |
| Annealed | 130 ksi min | 75 ksi min | 20% min |
| Hot Worked | 145 ksi min | 101 ksi min | 12% min |
| Warm Worked | 170 ksi min | 120 ksi min | 12% min |
| Applicable Specifications | |
|---|---|
| Rod | ASTM F 1537 |
| Designation | 28Cr-6Mo |
| UNS | R31537 |