Materials
for demanding applications
Inconel® Alloy X750
Inconel® Alloy X750 is a nickel-chromium alloy that is precipitation hardenable and possesses high strength and corrosion resistance at elevated temperatures.
Chemical composition
| Composition | UNS N07750 % |
| Carbon | 0.08 max |
| Manganese | 0.35 max |
| Sulfur | 0.01 max |
| Silicon | 0.35 max |
| Chromium | 14.0 - 17.0 |
| Niobium | 0.70 - 1.20 |
| Titanium | 2.25 - 2.75 |
| Aluminum | 0.40 - 1.00 |
| Iron | 5.00 - 9.00 |
| Cobalt | 1 max |
| Tantalum | 0.05 max |
| Copper | 0.50 max |
| Nickel + Cobalt | 70.00 min |
Physical properties
| Metric | English | |
| Density | 8.28 g/cm³ | 0.299 lbs/in³ |
| Modulus of elasticity | 214 GPa | 31 MPsi |
| Electrical resistivity | 1.22 µohms/m | 734 µohms/ft |
| Thermal conductivity | 12.0 W/m-K | 83 Btu-in/ft²hr-°F |
Mechanical properties
| Cold worked % | Yield strength | Ultimate tensile strength | Elongation % |
| 0 | 393 MPa [57 ksi] | 855 MPa [124 ksi] | 38 |
| 20 | 655 MPa [95 ksi] | 1007 MPa [146 ksi] | 19.3 |
| 50 | 1193 MPa [173 ksi] | 1303 MPa [189 ksi] | 2.3 |
| 60 | 1289 MPa [187 ksi] | 1462 MPa [212 ksi] | 1.8 |
| 68 | 1310 MPa [190 ksi] | 1538 MPa [223 ksi] | 1.8 |
| 75 | 1310 MPa [190 ksi] | 1586 MPa [230 ksi] | 1.9 |
All data represent results from a 25.4 cm [10 in] test gauge length. Values are typical and may not represent all diameters. Test method will affect results.