Inconel 718

Heat Resistant Direct Metal Laser Sintering Material

Nickel Alloy IN718 is a nickel based heat resistant alloy in fine powder form. This kind of precipitation-hardening nickel-chromium alloy is characterized by having good tensile, fatigue, creep and rupture strength at temperatures up to 700°C. 718 alloy has also outstanding corrosion resistance in various corrosive environments. In both as-built and age hardened states the parts can be machined, spark-eroded, welded, micro shot-peened, polished and coated if required.

Applications:

This material is ideal for many high temperature applications such as gas turbine parts, instrumentation parts, power and process industry parts etc. Material also possess excellent cryogenic properties and potential for cryogenic applications.

Typical Applications:

  • Aero and land based turbine engine parts
  • Rocket and space application components
  • Chemical and process industry parts
  • Oil well, petroleum and natural gas industry parts
Inconel 718
Property ASTM Metric Units
(As Built)
Metric Units
(AMS 5662)
Metric Units
(AMS 5664)
Heat treatment procedure per AMS 5662: Step1. Solution Anneal at 980° C for 1 hour, air (/argon) cool.
Step 2. Ageing treatment; hold at 720° C 8 hours, furnace cool to 620° C in 2 hours, hold at 620° C 8 hours,
air (/argon) cool.
Heat treatment procedure per AMS 5664: Step1. Solution Anneal at 1065° C for 1 hour, air (/argon) cool.
Step 2. Ageing treatment; hold at 760° C 10 hours, furnace cool to 650° C in 2 hours, hold at 650° C 8 hours,
air (/argon) coo
Ultimate Tensile Strength
6892
990 MPA 1400 MPA 1384 MPA
0.2% Yield Strength
6892
634 MPA 1150 MPA 1239 MPA
Elongation
6892
31% 30% 12%
Hardness, Rockwell C 6508-1 30 47 43

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