Alloy 718


Material Characteristics

The nickel-based Alloy 718 is suitable for the use at high temperatures and under corrosive
conditions. The superalloy is frequently used for compressor and turbine blades, for example in
gas turbines or in the aerospace industry. Additive manufacturing with downstream heat treatment processes enable good
modification possibilities of the materials properties, which leads to a broad range of possible applications.

PropertiesUnitAs built 1)Heat-treated 2)
Tensile Strength RmMpa1050 ±301500 ±30
Yield Strength Rp0,2MPa 740 ±201350 ±20
Elongation at Break A5% 28 ±3 10 ±3
Young‘s Modulus EGPa 185 ±10 215 ±15
Charpy Notch Toughness AvJ 75 ±5 25 ±3
Hardness HV305 ±5470 ±5
  1. The specified material properties were determined at room temperature. They are multidimensionally dependent on many different machine and process parameters. Without further investigation, the material properties do not constitute a sufficient basis for component dimensioning.
  2. Specific heat treatment processes lead to optimized mechanical-technological properties to meet the component requirements.

Chemical Composition

ElementMass Fraction [%]
C≤ 0.08
Si≤ 0.35
Mn≤ 0.35
P≤ 0.015
S≤ 0.015
Al0.20 - 0.80
Cr17.0 - 21.0
Co≤ 1.00
Cu≤ 0.30
Mo2.80 - 3.30
Ni50.0 - 55.0
Nb + Ta4.75 - 5.50
Ti0.65 - 1.25

Rosswag Engineering offers a holistic and fully integrated process chain for Additive Manufacturing services. Our portfolio ranges from manufacturing of your prototypes, tools and small serial products to an individual consulting and engineering process for the choice of material, parameters and process chain.

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