FWM™ 1537 alloy is a low carbon wrought cobalt-chromium-molybdenum alloy that features high strength, ductility, wear resistance, corrosion resistance, and good biocompatibility.
Chemical composition
| Composition |
ASTM F1537 |
| Carbon | 0.14 max |
| Chromium | 26.0 - 30.0 |
| Molybdenum | 5.0 - 7.0 |
| Nickel | 1.0 max |
| Iron | 0.75 max |
| Silicon | 1.0 max |
| Manganese | 1.0 max |
| Nitrogen | 0.25 max |
| Cobalt | Balance |
Physical properties
| Metric | English | |
| Density | 8.30 g/cm³ | 0.300 lbs/in³ |
| Modulus of Elasticity at 26 °C | 241 Gpa | 35 Mpsi |
| Thermal Conductivity at 21 °C | 12.6 W/(m*°C) | 87.4 BTU*in/(hr*ft²*°F) |
| Coefficient of Thermal Expansion |
13.2 µm/(m*°C) |
7.3 µin/(in*°F) |
*Values calculated at 22 °C [72 °F]
Mechanical properties
|
Condition |
Yield strength |
Ultimate tensile strength | Hardness Rockwell C |
Elongation % |
|
Annealed |
552 MPa - 758 MPa [80 ksi - 100 ksi] |
1034 MPa - 1172 MPa [150 ksi - 170 ksi] |
30 - 35 | > 25 |
|
Hard** |
758 MPa - 896 MPa [110 ksi - 130 ksi] |
1172 MPa - 1344 MPa [170 ksi - 195 ksi] |
~ 40 | > 30 |
|
*Values are typical and may not represent all diameters. Test methods will affect results. |
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