Other Steels

3D Printing EOS CaseHardeningSteel 20MnCr5, Nickel-Iron Alloy EOS FeNi36

EOS Case Hardening Steel Powders for 3D Printing

The material characteristics of case hardening steel makes it ideal for many applications in automotive and general engineering as well as gears and spare parts.

The case hardening steel family encompasses 20MnCr5 which is designed and tested for use with EOS metal systems. 

EOS CaseHardeningSteel 20MnCr5 material is shipped with a material test report (according to EN 10204, Type 2.2) showing the results of the QA testing with regard to the chemical properties and particle size distribution.

EOS also offers three processes for this material each with the optimal combination of parameters (e.g. laser power, layer thickness, etc.) at different build speeds.

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Typical Part Properties

  • Chemical Composition Standard ASTM-F1684-06
  • Tensile Strength 440 MPa
  • Yield Strength 315 MPa
  • Elongation at Break 40 %

Available Processes

EOS FeNi36

EOS FeNi36 is a nickel-iron alloy characterized by low coefficient of thermal expansion within the temperature range of 30 to 150 °C.

Highlights

  • Very low coefficient of thermal expansion (30-150 °C)
  • Excellent dimensional stability under thermal cycling

Typical Applications

  • Housings and structures for optical and scientific instruments
  • Aerospace and satellite structures
  • Other applications requiring low thermal expansion

Compatible Printers

Typical Part Properties

  • Chemical Composition Standard 1.7147
  • Tensile Strength 1250 MPa
  • Yield Strength 900 MPa
  • Elongation at Break 10 %

EOS CaseHardeningSteel 20MnCr5

This case hardening steel has good hardenability and reaches good wear resistance due to its high surface hardness after heat treatment.

Highlights

  • Good wear resistance
  • Excellent surface hardness after carburizing
  • Material according to EN-10084 alloy number 1.7147
  • Carburizable to achieve surface hardness of 60 HRC

Download Process Data Sheet (PDF)

Typical Applications

  • Automotive and general engineering applications 
  • Gears, mechanical parts

Compatible Printers