Alloy X-750 is a precipitation-hardenable alloy which has been used in applications such as high temperature structural members for gas turbines, jet engine parts, nuclear power plant applications, heat-treating fixtures, forming tools, and extrusion dies. The alloy is highly resistant to chemical corrosion and oxidation and has high stress-rupture strength and low creep rates under high stresses at temperatures up to 1500°F (816°C) after suitable heat treatment.
X750 is a Nickel-Chromium alloy made precipitation hardenable by additions of Al and Ti, having creep-rupture strength at high temperatures to about 700oC (1290oF). It is widely used for high temperature conditions but is not as strong as Nimonic 90
Alloy X-750 is a precipitation-hardenable alloy which has been used in applications such as high temperature structural members for gas turbines, jet engine parts, nuclear power plant applications, heat-treating fixtures, forming tools, and extrusion dies. The alloy is highly resistant to chemical corrosion and oxidation and has high stress-rupture strength and low creep rates under high stresses at temperatures up to 1500°F (816°C) after suitable heat treatment.
In what form is Inconel 750 Available at Ramdev Steel Engineering
- Sheet
- Plate
- Bar
- Pipe & Tube (welded & seamless)
- Flanges
- Wire
Type Analysis
| Element | Min | Max |
| Carbon | -- | 0.08 |
| Manganese | -- | 0.30 |
| Silicon | -- | 0.50 |
| Sulfur | -- | 0.01 |
| Nickel + Cobalt | 70.0 min | |
| Chromium | 14.0 | 17.0 |
| Iron | 5.00 | 9.00 |
| Aluminum | 0.40 | 1.00 |
| Titanium | 2.25 | 2.70 |
| Copper | -- | 0.50 |
| Cb + Ta | 0.70 | 1.20 |
Physical Properties
Density
lb/cu in...................................... 0.300
kg/cu m...................................... 8303
Melting Range
°F........................................ 2540/2600
°C.........................................1393/1427
Thermal Conductivity
| Temperature | Btu-in/ft²-hr-°F | W/m-K | |
| °F | °C | ||
| 300 600 1000 1200 1400 1600 |
149 316 538 649 760 871 |
117 142 184 199 218 245 |
16.9 20.5 26.5 28.7 31.4 35.3 |
Electrical Resistivity
| Condition | ohm-cir mil/ft | microhm-mm |
| At Room Temperature | ||
| Hot Rolled Solution Treated Solution Treated and Aged |
764 716 746 |
1270 1190 1240 |
Modulus of Elasticity
| Temperature | psi x 10(6) | MPa x 10(6) | |
| °F | °C | ||
| 80 500 1000 1350 1500 |
26.7 260.0 538.0 732.0 816.0 |
31.0 28.7 25.0 21.0 18.5 |
213.7 197.9 172.4 144.8 127.6 |
Typical Mechanical Properties
Room Temperature Mechanical Properties
Temper |
Tensile Strength, |
Yield Strength |
Elongation |
Hardness, |
Hot-finished + 1300°F/20 hr,A.C |
170,000-206,000 |
120,000-163,000 |
25-15 |
313-400 |