OptiPowder SS17-4PH

OptiPowder SS17-4PH

Stainless Steel 17-4PH (UNS S17400)

Stainless Steel 17-4PH is dual-phase ferritic-martensitic high strength and good ductility steel with excellent corrosion resistance. This steel is precipitation hardenable and could be heat treated to various properties.

Key Applications

The alloy is used for applications where high strength, high hardness, and high toughness are required. 17-4PH is commonly used in aerospace and automotive applications such as valve and engine components and gears. Other applications can be found in the gas industry. The alloy is also used in the medical industry for sterile surgical tools.  


Among precipitation hardened steels, 17-4PH possesses excellent weldability, making it an attractive alloy for Additive Manufacturing. Due to its properties, this alloy is extensively used for structural components in the aerospace industry.


Continuum offers various particle size distributions (PSD) for OptiPowder SS17-4PH. Custom PSD's are available upon request.