A nickel-chromium precipitation-hardenable grade, Alloy X-750 has high tensile and creep-rupture properties.
Similar to Alloy 600, Alloy X-750 has additional aluminium and titanium to increase the mechanical properties at temperatures up to 704°C.
We stock Alloy X-750 in a variety of product forms to suit different applications and fabrication methods, including plate, round bar and sheet. To view available sizes and submit an inquiry, use the dropdown selector below.
| % | Ni+Co | Cr | C | Mn | Cu | Si | S | Fe | Nb+Ta | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 70 | 14 | - | - | - | - | - | 5 | 0.7 | 2.25 | 0.4 |
| Max | - | 17 | 0.08 | 1 | 0.50 | 0.50 | 0.01 | 9 | 1.2 | 2.75 | 1.0 |
Alloy X-750 has good mechanical properties at high temperatures up to 704°C. The alloy was developed from Alloy 600 by adding aluminium and titanium to make the alloy precipitation hardenable. Alloy X-750 also demonstrates good formability and excellent high-temperature oxidation resistance.
Alloy X-750 offers outstanding performance in highly stressed environments, which is why it’s often used in gas turbines, nuclear reactors and aircraft structures.
For more information on Alloy X-750, including details of our inventory contact us, or fill in our online quote form and we’ll get right back to you!
| Mechanical & Physical Properties | 20°C | 200°C | 400°C | 427°C | 538°C | 600°C | 649°C | 732°C | 816°C |
|---|---|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength /MPa | 1503.1 | 1351.4 | 744.6 | 688.8 | - | 622.6 | 593 | - | 600 |
| 0.2% Yield Strength /MPa | 979.1 | 737.7 | 365.4 | 340.6 | - | 278.5 | 250.3 | - | 253.7 |
| Elongation % | 36 | 49 | 47 | 47 | - | 46 | 47 | - | 48 |
| Charpy Impact V-notch /J | 436.6 | 115.2 | 189.8 | - | - | - | - | - | - |
| Coefficient of Thermal Expansion µm/m⁰C | - | - | - | 14.22 | 14.94 | 15.12 | 15.48 | 15.66 | 15.84 |
| Thermal Conductivity /kcal/(hr.m.°C) | - | - | 10 | 11.2 | 12.1 | 12.9 | 15 | 15.66 | 15.84 |
| Modulus of Elasticity / x105 MPa | - | - | 1.95 | 1.89 | - | 1.8 | 1.71 | - | 1.61 |
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