What is 17 4 PH stainless steel?

Its name is from its chemical composition which is about 17% chromium and 4% nickel. Alloy 17-4PH stainless steel (UNS S17400, Type 630 ), is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with an addition of niobium. It is the most used stainless steel alloy of all precipitation hardening stainless steel casting.

17-4 stainless steel casting typical application is for high strength and corrosion resistance required. The desired strength and toughness can be controlled in the heat treatment process.

17-4 PH Stainless Steel Composition for Casting


17 4 PH Stainless Steel Casting Process in JC Casting

  • Sand Casting
  • Investment Casting (Lost Wax Casting, Precision Casting)

17 4 PH Stainless Steel Casting Heat Treatment

All 17-4 PH stainless steel castings need solution treatment. Heating the castings and material to 1050°C, holding the 30 min/in. [1.2 min/mm]. Then cooling to below 30°C.

Advantages of 17-4 PH Stainless Steel Casting

  • High strength. High hardness.
  • Good castability, minimum distortion upon heat treatment.
  • Good welding performance
  • Excellent corrosion resistance performance.
  • Excellent mechanical properties and fatigue properties.

17-4 PH Stainless Steel Castings Usages

17 4 PH Stainless Steel Castings usages are Including

  • High-strength parts with certain corrosion resistance requirements.
  • aircraft fittings, Aerospace-structural, and parts
  • Oil path, mechanical seals, and Components
  • Propeller shafts, pins, and valve spindles
  • Food Process Equipment
  • Nuclear Waste Processing and Storage
  • Pulp and Paper- paper mill equipment
  • Oil field valve parts
  • Chemical process equipment
  • Fasteners
  • Valves
  • Pump shafts
  • Gears

17-4 PH Stainless Steel Castings Manufacturer

JC Casting Foundry is a skilled manufacturer in customized 17-4 ph stainless steel investment castings. We can customize 17-4 ph stainless steel castings in different sizes and shapes. Additionally, we can also provide extra machining, surface treatment, heating treatment services as your requirement.

If you have any inquiries about 17-4 ph stainless steel investment casting, please email us: info@jccasting.com