DMLS 3D Printing Icon

Stainless Steel 17-4 PH

DIRECT METAL Laser Sintering
Get an Instant Quote

Stainless Steel 17-4 PH is a high strength and hardness alloy made with 17% chromium and 4% nickel. Direct Metal Laser Sintering (DMLS) offers consistent mechanical properties and finish with fine layer heights. The raw finish of the part is granular with a matte appearance, but it can be post-processed to achieve various finishes. This material and process combination finds applications in industries such as aerospace, automotive, and medical devices, thanks to its customization capabilities, high corrosion resistance, and biocompatibility. Direct Metal Laser Sintering (DMLS) is particularly advantageous for printing small, complex, hollow, or lattice structures, while simple, bulky, or dense parts may be better suited for CNC machining.

Average Lead Time:

8-12 Business Days

Machines Used: 

EOS M100

Colors Available

Stainless Steel 17-4 part
Stainless Steel 17-4 PH

Material Overview

Stainless Steel 17-4 PH is chosen when high strength, hardness, corrosion resistance and biocompatibility are needed. This alloy is also magnetic, which can make it a useful alternative to 316L when magnetism is required. The DMLS process offers numerous advantages, including the ability to achieve consistent mechanical properties and a high-quality finish, even with fine layer heights down to 30 µm.

Mechanical Properties

DMLS Stainless Steel 17-4 PH exhibits high tensile strength and yield strength, allowing it to withstand significant stress and loads without permanent deformation. This alloy also demonstrates good ductility, allowing it to stretch under stress, which is essential for applications needing flexibility. Its notable hardness makes it resistant to surface wear, while its toughness ensures it can absorb energy and resist impacts without fracturing. Additionally, the material's fatigue strength highlights its endurance under repetitive stress, making it suitable for high-wear environments.

Chemical Compatibility

Stainless Steel 17-4 PH, enriched with chromium, offers excellent corrosion resistance, ideal for oxidation-prone environments. Its nickel content enhances stability across temperature variations, while copper adds age-hardening properties for increased strength after heat treatment. This alloy also resists pitting and crevice corrosion in chloride environments, thanks to its composition. Lesser amounts of manganese and silicon contribute to its structural integrity and durability. Overall, 17-4 PH stainless steel's unique blend of elements provides exceptional corrosion resistance, strength, and stability, making it suitable for aerospace, marine, and chemical processing industries.

Thermal Properties

Stainless Steel 17-4 PH has a high thermal conductivity, facilitating efficient heat transfer, crucial in applications requiring rapid temperature changes. Its thermal expansion coefficient is moderate, ensuring dimensional stability under varying thermal conditions. This material also demonstrates excellent resistance to thermal fatigue, maintaining integrity under repeated thermal cycling.


Our DMLS 17-4 PH stainless steel offers substantial benefits across several industries. In aerospace, it enables the creation of complex, custom parts with high strength and precision, crucial for safety and performance. Its excellent corrosion resistance is ideal for the automotive industry, ensuring long-lasting durability of vehicle components under harsh conditions. Additionally, the biocompatibility of 17-4 PH stainless steel is vital in medical devices, ensuring safety and compatibility with the human body.



  • Complex assemblies & lattices
  • Thick wall parts
  • Bio-compatible parts
  • Brackets & enclosures
  • Wear-and-tear parts

Material Characteristics

Thermal Stability