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Alloy 718

A precipitation-hardenable nickel-chromium grade, Alloy 718 is a high strength superalloy used at temperatures up to 648°C.

With the addition of significant amounts of niobium and molybdenum along with aluminium and titanium, Alloy 718 has extremely high strength, excellent creep-stress rupture strength and good corrosion resistance.

Inventory

Product formSize range fromSize range to
Alloy 718 round bar4 mm254 mm
Alloy 718 sheet & plate0.25 mm76.2 mm
Alloy 718 welding wire0.5 mm2.36 mm

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Welding Consumables

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Sheet & Plate

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Round Bar

Chemical Analysis

%Ni+CoCrMoCuCoCMnSiPSFeTiAlNb+Ta
Min50172.80000000Balance0.650.24.75
Max55213.30.310.080.350.350.0150.015Balance1.150.85.5

Applications

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Perfect for applications in the Aerospace industry

Alloy 718 can be used in a variety of applications, here are just a few examples:

  • Gas turbine engine parts
  • Liquid fuel rocket motor components
  • Springs, fasteners
  • Cryogenic tanks
  • Pumps and valves
  • Tooling

About Alloy 718

Alloy 718 is precipitation hardened to give maximum strength and high creep-stress rupture strength. The alloy can be supplied in the annealed condition to enhance machinability followed by subsequent appropriate heat treatments. Capability tests are completed on test samples which have had the precipitation hardening process completed.

Alloy 718 demonstrates outstanding weldability including resistance to post-weld cracking.

The major applications are components for gas turbines, aircraft engines, fasteners and other high strength applications.

For more information on Nickel Alloy 718, or to get a quote contact us or fill in our online quote form.

Properties

Density:
8.193 g/cm³
Melting range:
1321-1393°C

Specifications

UNS Number:
N07718
W.Nr.Number:
2.4668
Standards:
ASTM B637, B670, AMS 5596, 5662, 5663, 5832
Download the Alloy 718 Data Sheet Download

Request a Quote

Fill in our online form to get a fast quote. Got a technical question? Contact us on techsales@neonickel.com or for more general enquiries please email us at enquiries@neonickel.com