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Aircraft Structures Nickel Based Superalloys Precipitation Hardened GH4145 800°C
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|Equal Grades||Inconel X-750, NiCr15Fe7TiAl, 2.4669,UNS N07750||Melting Range||1395°C~1425°C|
|Density||8.25g/cm3||Forms Of Supply||Plate, Strip, Bar, Forging, Ring, Wire, Tube|
|Spec||GB/T 14992||Product Name||Nickel Cobalt Alloy|
nickel based alloys,
high temperature nickel alloys
GH4145 Nickel Alloy Precipitation-hardened Superalloy up to 800°C Application
GH4145 is a precipitation-hardenable nickel-chromium alloy used for its corrosion and oxidation resistance and high strength at temperatures up to 1300°F. Although much of the effect of precipitation hardening is lost with increasing temperature over 1300°F, heat-treated material has useful strength up to 1800°F. GH4145 also has excellent properties down to cryogenic termperatures.
Depending on the application and the properties desired, various heat treatments are employed. For service above 1100°F, particularly where loads are to be sustained for long times, optimum properties are achieved by solution treating (2100°F) plus stabilization treating (1550°F) plus precipitation treating (1300°F). For service below 1100°F, the alloy may be strengthened by precipitation treating after hot or cold working or by precipitation treating after equalizing or solution treating. A furnace-cooling treatment is also used to develop optimum properties for some applications.
|Weight(%)||0.08 max||14.00~17.00||70.00 min||1.00 max||0.40~1.00||2.25~2.75||5.00~9.00||0.70~1.20||1.00 max||0.50 max||0.010 max||0.015 max||0.50 max|
- Good creep rupture strength at high temperatures
- Not as strong as Nimonic 90
- Very good at cryogenic temperatures
- Age hardenable
- High temperature dynamic applications
- Nuclear reactors
- Gas turbines
- Rocket engines
- Pressure vessels
- Aircraft structures
Available Product Forms
Sheet, strip, plate, round bar, flat bar, forging stock, hexagon, wire, tube and extruded