AMS 5940 - Nickel 783 Alloy Specification
AMS 5940 regulates Nickel 783, a nickel-bearing superalloy with outstanding strength and exceptionally low thermal expansion, designed for usage in gas and steam turbines. Fighter Jet Metals delivers AMS 5940 qualified Nickel 783 product with traceability, appropriate heat treating, and aerospace-level quality assurance.
Material OverView
Nickel 783 has been developed with low coefficient of thermal expansion to remain dimensionally stable in hot environments. A precipitation-hardening heat treatment, with added niobium and aluminum, gives this nickel steel its strength, with aluminum also contributing good oxidation resistance for high-temperature applications.
When compared to Inconel 718 and placed alongside it, Nickel 783 weighs 5% less than Inconel 718, and this works well for a component such as a turbine.
This low expansion property allows the engineer to close the clearance and tolerance more reliably, and the results are improved power outputs, fuel efficiency, and turbine performance.
Applications of INCONEL 783
INCONEL 783 is used in:
- Gas turbine structural components such as blades, frames, and vanes.
- Steam turbine components requiring precise tolerances and high strength.
- High-temperature aerospace hardware.
- Power generation equipment needing oxidation-resistant materials.
Certified Material for Critical Service
Fighter Jet Metals supplies INCONEL 783 with:
- Full certification and traceability
- Heat treatment and mechanical test reports
- Compliance with AMS 5940 standards
- Aerospace-grade quality assurance
Each batch is sourced from approved manufacturers and tested to meet strict aerospace and industrial specifications.