Inconel X-750 alloys have similar grades in different countries and regions, as follows:
-USA: Inconel X-750, UNS N07750
-China: GH4145
Europe: 2.4669
-Japan: NCF750
Inconel X750
Inconel X-750 alloy properties
Inconel X-750 alloy is a nickel-based superalloy known for its excellent corrosion resistance, oxidation resistance and strength at high temperatures. The alloy is widely used in aerospace, nuclear industry and gas turbine field. The following details the domestic and foreign approximate grades, compositions, physical properties, heat treatment, processing and welding, applications, and provided specifications and forms of Inconel X-750 alloys.
Ingredients
|
element |
Content (%) |
|
Nickel (Ni) |
70.0 min |
|
Chromium (Cr) |
14-17 |
|
Iron (Fe) |
5-9 |
|
Niobium + Tantalum (Nb + Ta) |
0.7-1.2 |
|
Titanium (Ti) |
2.25-2.75 |
|
Aluminum (Al) |
0.4-1.0 |
|
carbon (C) |
≤ 0.08 |
|
Manganese (Mn) |
≤ 1.0 |
|
Silicon (Si) |
≤ 0.5 |
Physical Properties
|
performance index |
value |
|
density |
8.28 g/cm³ |
|
melting point |
1393-1427°C |
|
Coefficient of thermal expansion (20-1000°C) |
12.8 x 10⁻⁶ /°C |
|
thermal conductivity |
11.2 W/(m·K) |
|
modulus of elasticity |
214 GPa |
heat treatment
|
Processing Steps |
Description |
|
solution treatment |
was heated at 1080°C and rapidly cooled. |
|
aging treatment |
was heated to 730°C and held for 8 hours, then lowered to 620°C and held for 8 hours. |
machining and welding
·Cold working: suitable for cold drawing and cold rolling to improve strength.
·Hot processing: It should be carried out between 980-1150°C.
·Welding: suitable for tungsten argon arc welding, etc., heat treatment is required after welding.
Application
·Aerospace: Used for jet engine parts and turbine blades.
·nuclear industry: suitable for nuclear reactor components.
·Gas Turbine: Used for high temperature components in gas turbines.
·Petrochemical industry: used for high temperature, high pressure valves and pipelines.
Inconel X-750 alloys are available in different shapes and sizes, including plates, bars, wires and forgings.
