# Nimonic 90

*N07090 · GH4090*

> Age-hardenable Ni-Cr-Co alloy for turbine blades and high-temperature springs to 920°C.

Nimonic 90 is an age-hardenable nickel-chromium-cobalt alloy with higher titanium and aluminum content than Nimonic 80A. The cobalt addition enhances the gamma-prime solvus temperature, providing useful creep strength up to 920°C. It is used for gas turbine hot-section blades, discs and high-temperature springs.

## Key features

- 920°C creep strength
- Cobalt-enhanced gamma-prime
- Precipitation-hardenable
- Higher temp than 80A
- Turbine blade qualified

## Applications

- Gas turbine hot-section blades
- Turbine discs and rings
- High-temperature springs to 920°C
- Automotive turbocharger components
- Creep-limited aerospace fasteners

## Standards

- ASTM B637
- BS HR 202
- AMS 5829
- DIN 17742