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EOS MS1 Maraging Steel for DMLS 3D Printing
Categories: Metal; Ferrous Metal; Maraging Steel

Material Notes: EOS Maraging Steel MS1 is a steel powder which has been optimized especially for processing on EOSINT M 270 systems. This steel has very good mechanical properties, and is easily heat-treatable using a simple thermal age-hardening process to obtain excellent hardness and strength. This material is ideal for many tooling applications (DirectTool) such as tools for injection molding, die casting of light metal alloys, punching, extrusion etc., and also for high performance industrial and engineering parts, for example in aerospace and motor racing applications.

EOS®, EOSINT®, and DMLS® are registered trademarks of EOS GmbH. Information provided by Axis Prototyping.

Key Words: US classification 18% Ni Maraging 300, European 1.2709 and German X3NiCoMoTi 18-9-5
Available Properties
  • Density
  • Porosity, with standard processing parameters
  • Hardness, Rockwell C, as built
  • Hardness, Rockwell C, after age hardening
  • Tensile Strength, Ultimate, as built
  • Tensile Strength, Ultimate, after age hardening
  • Tensile Strength, Yield, as built
  • Tensile Strength, Yield, after age hardening
  • Elongation at Break, after age hardening
  • Elongation at Break, as built
  • Modulus of Elasticity
  • Charpy Impact, Notched; after age hardening
  • Charpy Impact, Notched; as built
  • Specific Heat Capacity, as built
  • Specific Heat Capacity, after age hardening
  • Thermal Conductivity, as built
  • Thermal Conductivity, after age hardening
  • Maximum Service Temperature, Air
  • Shrinkage, age hardening
  • Aluminum, Al
  • Carbon, C
  • Chromium, Cr
  • Cobalt, Co
  • Iron, Fe, as balance
  • Manganese, Mn
  • Molybdenum, Mo
  • Nickel, Ni
  • Phosphorous, P
  • Silicon, Si
  • Sulfur, S
  • Titanium, Ti
Property Data

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Manufacturer Notes:
Electro Optical Systems GMBH

Category Notes

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