AMS 5702 – Nickel 706 Bars, Forgings & Rings
AMS 5702 includes Nickel 706, UNS N09706, in bar, forging, and ring shapes, melted by consumable electrode and/or vacuum induction and then solution heat-treated at 1750°F (954°C). It describes a precipitation hardenable Nickel Iron Chromium alloy providing high mechanical properties, good oxidation resistance, and fabricability, together with resistance to specialized aerospace and turbine applications.
Nickel 706 per AMS 5702 is similar to INCONEL 718 UNS N07718 in terms of mechanics but can be said to be easier to machine compared to it. This attribute qualifies it for the manufacturing of complex strength alloy components required for extreme conditions.
Technical Overview of INCONEL 706
- Base Composition: Nickel, Iron, and Chromium with controlled Titanium, Aluminum, and Niobium additions for precipitation hardening.
- Forms Covered: Bars, Forgings, Rings.
- Condition: Solution heat-treated at 1750°F (954°C).
- Melting Process: Consumable Electrode or Vacuum Induction Melting (VIM), often followed by Vacuum Arc Remelting (VAR) for purity.
- Key Properties:
- Exceptional tensile and creep strength up to 1300°F (704°C).
- Stable microstructure during cyclic heating.
- Excellent fatigue resistance and oxidation control.
- Easier fabrication and machinability than other high-strength nickel alloys.
Applications of INCONEL 706
- Gas Turbine Disks and Compressor Components – High strength and oxidation resistance under cyclic loads.
- Aircraft Engine Mounts and Rings – Excellent fatigue and thermal stability.
- Land-Based Turbine Systems – Long service life under high-temperature oxidation.
- Power Generation & Industrial Heating Systems – Resists scaling and stress cracking under thermal cycling.
Related Specifications
SHEET & PLATE
Defines mechanical and metallurgical properties of Alloy 706 in flat-rolled products for aerospace and power generation use.
Certified Material for Critical Service
All INCONEL 706 supplied by Fighter Jet Metals includes:
- Full certification to applicable AMS specifications.
- Heat number traceability and complete mechanical test documentation.
- Dual certification with related specifications where applicable.
- Supply in solution-treated or age-hardened conditions to meet customer requirements.