EOS NickelAlloy IN718 is a heat and corrosion resistant nickel alloy powder which has been optimized especially for processing on EOS M systems.

Parts built from EOS NickelAlloy IN718 have chemical composition corresponding to UNS N07718, AMS 5662, AMS 5664, W.Nr 2.4668, DIN NiCr19Fe19NbMo3. 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 (1290 °F).

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

Parts built from EOS NickelAlloy IN718 can be easily post-hardened by precipitation-hardening heat treatments. In both as-built and age-hardened states the parts can be machined, spark- eroded, welded, micro shot-peened, polished and coated if required. Due to the layerwise build- ing method, the parts have a certain anisotropy - see Technical Data for examples.

This document provides information and data for parts built using EOS NickelAlloy IN718 powder (EOS art.-no. 9011-0020) on the following system specifications:

• EOSINT M280 400W System with PSW3.6 and Parameter Set IN718_Performace 1.0

• EOS M290 400W System with EOSPRINT 1.0 and Parameter Set IN718_Performace 1.0

Typical achievable part accuracy:
small parts: ± 40-60 µm
large parts: ± 0.2%