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Stainless Steel 15-5

Product information

EOS StainlessSteel PH1 is a stainless steel. The chemical composition conforms to the com-positions of 15-5 PH, DIN 1.4540 and UNS S15500. This kind of steel is characterized by having excellent mechanical properties, especially in the precipitation hardened state. This type of steel is widely used in a variety of medical, aerospace and other engineering applications requiring high hardness and strength. This material is ideal for many part-building applications such as functional metal prototypes, small series products, individualised products or spare parts.



  • very high strength

  • easily hardenable up to approx. 45 HRC



  • Functional prototypes

  • Series-production parts

  • Mechanical engineering

  • Medical technology



20 or 40 Micron Layers

30-35 HRC As Built

40 HRC Post Hardened

Max Temp – 460°C, 860°F


DMLS Finish Levels:

  • Unfinished (Includes removal of support material)

  • Shot Peened

  • Sand Blasted

  • Brushed Finish

  • Lightly Sanded

  • Medium Polished

  • Mirror Polished


Additional Finishing Options:

  • Abrasive Blast (Grit & Ceramic)

  • Electrochemical Polishing

  • Abrasive Flow Machining (Extrude Hone) Polishing

  • Electroplating

  • Micro Machining Process (MMP)

  • CNC Finishing/Machining

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