AMS 5662 specification covers a corrosion- and heat-resistant nickel alloy (Alloy 718 / UNS N07718) in the form of bars, forgings, and flash welded rings in the solution heat treated condition. Product covered by this specification is limited to 10.00 inches (254 mm) and under in nominal diameter or maximum cross-sectional dimension. Stock for forging, ring, or heading may be of any size. AMS 5662 Alloy 718 is a nickel-chromium-based superalloy in the solution annealed condition. This is the softest of the alloy's states and can offer a machining benefit when used. ZYTC Alloy is an ISO 9001 and AS 9120B certified superalloy manufacturer and supplier, offering AMS 5662 Alloy 718 bars at factory-direct prices with full material traceability and fast global delivery.
FabricationSolution Annealing: 954-982°C (1750-1800°F) × 1 hour, air cool or faster; supplied in this condition (AMS 5662) . Aging: 718-732°C (1325-1350°F) × 8 hours, furnace cool to 621°C (1150°F) × 8-18 hours, air cool (AMS 5663) . Hot Working: 1010-1093°C (1850-2000°F); reheat as necessary . Cold Working: Moderate formability in solution annealed condition . Machining: Excellent machinability in solution annealed condition (AMS 5662); softer state provides machining benefit . Welding: Good weldability using GTAW (TIG); post-weld aging required to restore properties .
Product Forms & Availability – Alloy 718 (UNS N07718)| Product Form | Size Range |
|---|
| Round Bar | Φ3mm – 10″ (254 mm) | | Forgings | Custom configurations | | Flash Welded Rings | Up to 10″ (254 mm) | | Forging Stock | Any size (no size limit) | | Ring Stock | Any size for further processing | | Heading Stock | Any size | | Flat Bar | Custom sizes | | Hexagon | Up to 10″ across flats | | Plate, Sheet & Strip | Various thicknesses | | Pipe & Tube | Seamless and welded | | Wire | Various gauges |
Contact Sales for further availability and custom sizes.
Specifications – Alloy 718 Bar| Specification | Description |
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| AMS 5662 | Bars, forgings, flash welded rings – solution heat treated | | UNS N07718 | Unified numbering system | | ASTM B637 | Standard specification for bar | | ASME SB637 | Boiler code | | Inconel® 718 | Common trade name | | AMS 5663 | Aged condition (higher strength) | | AMS 5664 | Alternative aged condition |
Size limitation (AMS 5662): Up to 10.00 inches (254 mm) nominal diameter Up to 78.54 in² (503 cm²) cross-sectional area Forging/ring/heading stock: any size
ApplicationsTurbine Components: Turbine discs, blades, vanes, shafts, rings, casings Cryogenic Storage Tanks: Liquid hydrogen and oxygen storage for aerospace Jet Engines: Compressor discs, spacers, high-temperature fasteners, shafts Pump Bodies and Parts: High-strength pump components for corrosive service Rocket Motors: Thrust chambers, nozzle components, structural hardware Thrust Reversers: Aircraft engine thrust reverser assemblies Nuclear Fuel Element Spacers: Reactor core components Hot Extrusion Tooling: Tooling for high-temperature metal forming High-Strength Bolting: Aerospace-grade bolts, studs, and fasteners Downhole Shafting: Oil and gas exploration and production components
Request a quote for AMS 5662 / UNS N07718 / Alloy 718 Bar (Solution Heat Treated). Please provide: Diameter / size (round, flat, hexagon, forging stock) Length or weight required Product form (bar / forging / ring / stock) Tolerance requirement (H9/H11/H13 or custom) Destination port Any special certification requirements
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