Nimonic 90 alloy has corresponding similar grades in different countries and regions, as follows:
-USA: Nimonic 90, UNS N07090
-China: GH4090
Europe: 2.4632
-Japan: NC90
Nimonic 90
Nimonic 90 Alloy Properties
Nimonic 90 alloy is a nickel-based superalloy with good creep resistance, fatigue resistance and oxidation resistance. The alloy is widely used in high temperature components in aerospace and industrial turbines.
Ingredients
|
element |
Content (%) |
|
Nickel (Ni) |
margin |
|
Chromium (Cr) |
18-21 |
|
Cobalt (Co) |
15-21 |
|
Titanium (Ti) |
2.0-2.5 |
|
Aluminum (Al) |
1.0-1.8 |
|
carbon (C) |
≤ 0.1 |
|
Iron (Fe) |
≤ 3.0 |
|
Silicon (Si) |
≤ 1.0 |
|
Manganese (Mn) |
≤ 1.0 |
Physical Properties
|
performance index |
value |
|
density |
8.18 g/cm³ |
|
melting point |
1315-1345°C |
|
Coefficient of thermal expansion (20-1000°C) |
12.8 x 10⁻⁶ /°C |
|
thermal conductivity |
13.4 W/(m·K) |
|
modulus of elasticity |
215 GPa |
heat treatment
|
Processing Steps |
Description |
|
solution treatment |
was heated at 1080°C and then rapidly cooled. |
|
aging treatment |
was heated to 700-750°C for 16 hours and then cooled. |
machining and welding
·Cold working: suitable for cold drawing and cold rolling to improve strength.
·Hot processing: should be carried out between 950-1150°C.
·welding: suitable for TIG welding, heat treatment may be required after welding.
Application
·Aerospace: For gas turbine blades, rings and fasteners.
·Industrial gas turbines: used for high-temperature components and heat exchangers.
·nuclear reactor: suitable for high temperature components.
·Petrochemical industry: equipment under high temperature and corrosive environment.
Nimonic 90 alloy is available in different shapes and sizes, including plate, bar, wire and forgings.
