Stainless Steel

3D Printing Stainless Steel 316L, 316L VPro, 254, SuperDuplex, 17-4PH, PH1 (15-5) & CX

Stainless Steel Alloys for 3D Printing

Stainless steel’s material characteristics make it ideal for a wide range of applications in  medical, oil and gas, ship building, etc.

The stainless steel family of powders encompasses the 316L, 316L VPro, 254, SuperDuplex, 17-4PH, PH1 (15-5) and CX alloys. All these powders are designed and tested for use on EOS’ metal systems.

EOS stainless steel powders are shipped with an inspection certificate (according to EN 10204, Type 3.1) showing the results of the extensive QA testing. Only EOS StainlessSteel SuperDuplex 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 a wide range of validated processes for each of the above materials. These offer the optimal combination of parameters (e.g. laser power, layer thickness, etc.) in order to ensure that the properties of the 3D printed part are consistently achieved.

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Typical Part Properties

  • Chemical Composition Standard 1.4542, UNS17400, A564M
  • Tensile Strength 1340 MPa
  • Yield Strength 1235 MPa
  • Elongation at Break 13.5 %

Stainless Steel

EOS StainlessSteel 17-4PH

Parts show a high level of corrosion resistance combined with high strength. This combination is ideal for the medical applications such as surgical instruments.

Highlights

  • Corrosion resistance and strength
  • Parts can be machined, shot-peened and polished in asbuilt or heat treated states
  • Solution annealing together with aging treatment are necessary in order to achieve proper hardness and mechanical properties (ASTM A564-13)
  • Chemical composition and part properties corresponding to 1.4542, UNS 17400 and ASTM A564M

Typical Applications

  • Acid and corrosion resistant engineering parts
  • Medical instruments (surgical tools, orthopedic instrumentation)

Typical Part Properties

  • Chemical Composition Standard EN 1.4547
  • Tensile Strength 700 MPa
  • Yield Strength 600 MPa
  • Elongation at Break 30 %

Stainless Steel

EOS StainlessSteel 254

EOS StainlessSteel 254 is an austenitic stainless steel. With its excellent corrosion resistance, it is ideally suited to demanding conditions and challenging environments.

Highlights

  • Excellent resistance to uniform, pitting and crevice corrosion
  • High resistance to stress corrosion cracking
  • Higher strength than conventional austenitic stainless steels

Typical Applications

  • Chlorinated seawater handling equipment
  • Pulp and paper manufacturing devices
  • Chemical handling equipment

Compatible Printers

Typical Part Properties

  • Chemical Composition Standard 1.4441, UNS S31673, F138
  • Tensile Strength 590 MPa
  • Yield Strength 500 MPa
  • Elongation at Break 47 %

Stainless Steel

EOS StainlessSteel 316L

Parts show a high level of corrosion resistance, toughness and ductility as well as a high resistance to acids. This combination is ideal for the a wide range of applications in aerospace, automotive, energy, jewelry, medical, ship building and many more.

Highlights

  • High ductility and toughness
  • High strength
  • High corrosion resistance

Typical Applications

  • Chemical industry
  • Food processing
  • Medical devices

Typical Part Properties

  • Tensile Strength 1180 MPa
  • Yield Strength 710 MPa
  • Elongation at Break 26 %

Stainless Steel

EOS StainlessSteel CX

Parts show good corrosion resistance combined with high strength and hardness plus excellent wear and fatigue resistance. This combination is ideal for demanding applications for plastic injection and rubber molding tools used in medical, food and other industries.

Highlights

  • Stainless steel with excellent corrosion resistance combined with high strength and hardness
  • The parts are easily machinable and offer excellent polishability
  • The parts offer excellent wear and fatigue resistance

Typical Applications

  • Plastic injection molding tools and tool parts for demanding applications
  • Rubber molding tools and tool parts
  • Molding tools and tool parts for corrosive plastics
  • Other industrial applications where high strength and hardness are required

Compatible Printers

Typical Part Properties

  • Chemical Composition Standard 1.4540, UNS S15500
  • Tensile Strength 1440 MPa
  • Yield Strength 1300 MPa
  • Elongation at Break 13 %

Stainless Steel

EOS StainlessSteel PH1

Parts show a good corrosion resistance and excellent mechanical properties, especially in the precipitation hardened state. This combination is used in a wide range of applications.

Highlights

  • High strength and hardness
  • Corrosion resistant
  • For mildly corrosive environments

Typical Applications

  • Engineering applications including functional prototypes, small series products, individualised products or spare parts
  • Parts requiring high corrosion resistance, sterilisability, etc.
  • Parts requiring particularly high hardness and strength

Compatible Printers

Typical Part Properties

  • Tensile Strength 860 MPa
  • Yield Strength 560 MPa
  • Elongation at Break 34 %

Stainless Steel

EOS StainlessSteel SuperDuplex

EOS StainlessSteel SuperDuplex is an austenitic-ferritic duplex stainless steel for extreme conditions. The high chromium, molybdenum and nitrogen alloying give excellent corrosion resistance in many difficult environments. The product is optimized for additive manufacturing while maintaining SuperDuplex properties. The optimization of phase balance enables use of the product in as manufactured condition in many use cases. The general pitting resistance equivalent PREN for EOS SuperDuplex is 41 (PREN = %Cr + 3.3 X %Mo + 16 X %N)

Highlights

  • Excellent resistance to uniform, pitting and crevice corrosion
  • High strength together with high corrosion resistance

Typical Applications

  • Oil and gas industry
  • Pulp and paper manufacturing devices
  • Mining and off-shore equipment

Compatible Printers