L-605 is a cobalt-chromium-nickel, nonmagnetic alloy that possesses high strength properties at elevated temperatures along with good oxidation and corrosion resistance.
Chemical composition
| Composition |
ASTM F90 |
| Carbon | 0.05 - 0.15 |
| Manganese | 1.00 - 2.00 |
| Silicon | 0.4 max |
| Phosphorus | 0.03 max |
| Chromium | 19.00 - 21.00 |
| Nickel | 9.00 - 11.00 |
| Tungsten | 14.00 - 16.00 |
| Iron | 3.00 max |
| Cobalt | Balance |
Physical properties
|
Metric |
English | |
| Density | 9.27 g/cm³ | 0.335 lbs/in³ |
| Modulus of elasticity | 243 GPa | 35.3 Mpsi |
| Electrical resistivity | 886 µohm*mm | 34.9 µohm*in |
|
Thermal conductivity |
9.4 W/(m*°C) | 65 BTU*in/(hr*ft²*°F) |
|
Coefficient of thermal expansion |
12.3 µm/(m*°C) | 6.8 µin/(in*°F) |
*Values are calculated at 22 °C [72 °F]
Mechanical properties
| Cold worked % |
Yield strength |
Ultimate tensile strength |
Elongation % |
| 0 | 621 MPa [90 ksi] | 1138 MPa [165 ksi] | 50 |
| 20 | 1379 MPa [200 ksi] | 1655 MPa [240 ksi] | 9 |
| 37 | 1655 MPa [240 ksi] | 2000 MPa [290 ksi] | 6 |
|
50 |
2000 MPa [290 ksi] | 2241 MPa [325 ksi] | 3.6 |
* Values are typical and may not represent all diameters. Test method will affect results. All data represent results from a 25.4 cm [10 in] test gauge length.
Mechanical properties - straightened and cut bar
|
Condition |
Ultimate tensile strength |
Yield strength | Elongation % |
|
Annealed |
1034 MPa [150 ksi] | 517 MPa [75 ksi] | 40 |
|
Cold worked |
1379 MPa [200 ksi] | 1034 MPa [150 ksi] | 25 |
*Values are typical and may not represent all diameters. Test methods will affect results. All data represent results from a 5.08 cm [2 in] test gauge length.