Inconel X750 (UNS N07750) is a nickel-chromium alloy that has been strengthened with the additions of titanium and aluminum to improve its characteristics. Fantastic choice for usage in tough settings because of its excellent corrosion and oxidation resistance. Additionally, even at temperatures as high as 1300°F (700°C), this alloy has exceptional tensile and creep rupture capabilities.
The AMS 5542 specification covers Inconel X750 corrosion and heat-resistant nickel alloy in the form of sheet, strip, and plate.
Chemical Composition
| Element | Content (%) |
| Chromium, Cr | 14-17 |
| Iron, Fe | 5-9 |
| Titanium, Ti | 2.25-2.75 |
| Manganese, Mn | 1 max |
| Niobium, Nb | 0.7-1.2 |
| Copper, Cu | 0.5 max |
| Silicon, Si | 0.5 max |
| Aluminum, Al | 0.4-1 |
| Carbon, C | 0.08 max |
| Sulfur, S | 0.01 min |
| Nickel, Ni | Remainder |
Physical Properties
| Properties | Metric | Imperial |
| Density | 8.26 g/cm³ | 0.298 lb/in³ |
| Melting point | 1413°C | 2575°F |
Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength | 1325 MPa | 192.2 ksi |
| Elongation at break (in 51 mm) | 23.60% | 23.60% |
| Reduction of area | 42% | 42% |
Heat Treatments
Sheet, Strip and Plate are available with the following heat treatments
AMS 5542 - 1300°F/20hr, AC (Constant-temperature precipitation treatment). AMS 5542 has high strength up to 1300°F
AMS 5598 - 1350°F/8hr, FC to 1150°F, hold at 1150°F for total precipitation-treating time of 18hr, AC (furnace-cool precipitation treatment. AMS 5598 has high strength up to 1300°F (Increased tensile properties to about 1100°F).
With heat treatment 1400°F/1hr, FC to 1150°F hold at 1150°F for total time of 6hr, AC (short furnace-cool precipitation treatment).