HAYNES® R-41 alloy is a nickel-based alloy that offers excellent strength and oxidation resistance at elevated temperatures and can be annealed for greater ductility.
Chemical composition
| Composition |
UNS N07041 |
| Nickel | Balance |
| Chromium | 18.00 - 20.00 |
| Cobalt | 10.00 - 12.00 |
| Iron | 5.00 max |
| Molybdenum | 9.00 - 10.50 |
| Titanium | 3.00 - 3.30 |
| Aluminum | 1.40 - 1.80 |
| Silicon | 0.50 max |
| Manganese | 0.10 max |
| Carbon | 0.12 max |
| Boron | 0.0030 - 0.010 |
| Sulfur | 0.015 max |
Physical properties
| Metric | English | |
| Density | 8.25 g/cm³ | 0.298 lbs/in³ |
| Modulus of elasticity | 213 GPa | 30.9 Mpsi |
| Electrical Resistivity | 127 µohm*cm | 50.0 µohm*in |
| Thermal Conductivity | 12.6 W/(m*°C) | 88 BTU-in/(hr*ft²*°F) |
| Coefficient of thermal expansion | 13.9 µm/(m*°C) | 7.6 µin/(in*°F) |
*Values calculated at 22 °C [72 °F]
Mechanical properties
| Cold worked % |
Yield strength |
Ultimate tensile strength |
Elongation |
| 0 | 703 MPa [102 ksi] | 1138 MPa [165 ksi] | 42 |
| 20 | 1103 Mpa [160 ksi] | 1276 MPa [185 ksi] | 10.5 |
| 37 | 1476 MPa [214 ksi] | 1620 MPa [235 ksi] | 3.5 |
|
50 |
1786 MPa [259 ksi] | 2124 MPa [308 ksi] | 2.3 |
|
* Values are typical and may not represent all diameters. Test method will affect results. |
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