Inconel X-750, also known as Alloy X-750, with the UNS designation N07750 and W. Nr. 2.4669, is an age-hardenable nickel-chromium superalloy used for its corrosion and oxidation resistance and high strength at temperatures up to 820 °C (1500 °F), known for its excellent mechanical properties at high temperatures. This alloy exhibits high strength, excellent corrosion resistance, and good fabricability, making it suitable for a wide range of applications. Inconel X-750 is often used in high-temperature environments, including gas turbine components, rocket engines, nuclear reactors, and industrial heating applications. Its combination of high strength and corrosion resistance makes it a valuable material in demanding conditions.
Whatsapp:
+8615900526263E-mail:
sales@cocessalloys.comChemical Composition
|
Nickel (Ni) |
70% min |
|
Copper (Cu) |
14-17% |
|
Iron (Fe) |
5-9% |
|
Titanium (Ti) |
2.25-2.75% |
|
Aluminum (Al) |
0.4-1% |
|
Niobium+Tantalum (Nb+Ta) |
0.7-1.2% |
|
Manganese (Mn) |
1% max |
|
Silicon (Si) |
0.5% max |
|
Sulfur (S) |
0.01% max |
|
Copper (Cu) |
0.5% max |
|
Carbon (C) |
0.08% max |
|
Cobalt (Co) |
1% max |
Physical Properties
|
Density |
lb/in3 |
0.299 |
|
g/cm3 |
8.28 |
|
|
Melting Range |
°F |
2540-2600 |
|
°C |
1393-1427 |
|
|
Curie Temperature |
°F |
|
|
As hot-rolled |
-225 |
|
|
Triple-heat-treated (2100°F/2 hr, A.C. |
+1500°F |
|
|
|
/24 hr, A.C., + 1300°F/20 hr, A.C.) |
-193 |
|
Magnetic Permeability, 70°F |
200H |
|
|
|
As Hot-Rolled |
1.0020 |
|
Triple-heat-treated (2100°F/2 hr, A.C. |
+1500°F |
|
|
/24 hr, A.C., + 1300°F/20 hr, A.C.) |
1.0035 |
|
|
Emissivity |
oxidized surface |
|
|
600°F |
0.895 |
|
|
2000°F |
0.925 |
|
|
Linear Contraction during Precipitation Treatment (1300°F/20 hr) |
in/in |
|
|
Hot-Rolled |
0.00044 |
|
|
20% Cold-Rolled |
0.00052 |
|
|
Annealed |
0.0002 |
Mechanical Properties
|
Temperature |
Yield strength |
Tensile strength |
Elongation |
|||
|
Rp 0.2 |
Rm |
A |
||||
|
°C |
°F |
MPa |
ksi |
MPa |
ksi |
% |
|
20 |
68 |
975 |
141.1 |
1325 |
192.2 |
23.6 |
Inconel X-750 is utilized in a variety of applications due to its excellent mechanical properties and high-temperature performance. Some typical applications include:
1. Gas turbine engine components: Inconel X-750 is used in the manufacturing of turbine blades, seals, and other high-temperature components in gas turbine engines due to its strength and corrosion resistance at elevated temperatures.
2. Rocket engines and space exploration: The alloy is employed in critical components for rocket engines and other aerospace applications where high strength and resistance to extreme temperatures are required.
3. Nuclear reactors: Inconel X-750 finds use in the construction of reactor core components and other critical parts in nuclear reactors due to its high-temperature strength and resistance to corrosion.
4. Industrial heating applications: It is used in industrial heating elements, furnace components, and heat-treating fixtures due to its ability to withstand high temperatures and mechanical stress.
5. Springs and fasteners: Inconel X-750 is commonly used in the manufacturing of springs, fasteners, and other high-stress components where a combination of high strength and corrosion resistance is essential.
6. Oil and gas industry: It finds applications in downhole and wellhead components, as well as in equipment for sour gas environments, due to its resistance to corrosion and high-temperature properties.
Specifications for Inconel X-750 include the following:
|
RoBar, Rod and Forgings |
Plate, Sheet, and Strip |
Wire |
|
ASTM B 637/ASME SB 637 |
SAE AMS 5542 and 5598 |
SAE AMS 5698 and 5699 |
Standard product forms of Inconel X-750 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at sales@cocessalloys.com for full information.
