What makes 17-4 PH stainless steel ideal for high-strength applications?
17-4 PH stainless steel offers an exceptional combination of high strength (up to 190 ksi yield strength after aging), excellent corrosion resistance, and good toughness. The precipitation hardening process allows it to be machined in the annealed condition and then heat treated to achieve superior mechanical properties, making it ideal for aerospace, defense, and high-performance industrial applications.
What forms of 17-4 PH stainless steel annealed parts do you supply?
We supply comprehensive 17-4 PH product forms including sheet, strip, plate, bars, wire, forgings, tubing, and rings. All products are available in the solution heat treated (annealed) condition and are precipitation hardenable to meet AMS and military specifications for aerospace and defense applications.
What specifications do your 17-4 PH stainless steel parts meet?
Our 17-4 PH stainless steel parts meet multiple AMS specifications including AMS 5604, AMS 5622, and AMS 5643, as well as military specification MIL-DTL-24527. Each specification is tailored for specific applications and forms, ensuring optimal performance in critical environments requiring high strength and corrosion resistance.
What is the composition of 17-4 PH stainless steel?
17-4 PH stainless steel typically contains approximately 16-16.5% chromium, 4% nickel, 4% copper, and 0.30% columbium (niobium). This unique composition enables precipitation hardening, providing high strength while maintaining good corrosion resistance and machinability in the annealed condition.
What is the difference between solution heat treated and precipitation hardened conditions?
Solution heat treated (annealed) 17-4 PH is relatively soft and easily machinable, with a yield strength around 115 ksi. After precipitation hardening (aging heat treatment), the material achieves significantly higher strength (up to 190 ksi yield) while maintaining corrosion resistance. This allows for easier fabrication before final heat treatment to achieve maximum strength.
What industries commonly use 17-4 PH stainless steel?
17-4 PH stainless steel serves aerospace, defense, marine, chemical processing, oil & gas, medical devices, and general industrial applications. Its combination of high strength, corrosion resistance, and heat treatability makes it ideal for aircraft components, submarine parts, pump shafts, valves, and precision instruments.
What certifications do your 17-4 PH stainless steel products carry?
All our 17-4 PH stainless steel products come with full material certifications and traceability. Our facility is ISO 9001 and AS 9100 certified, ensuring compliance with aerospace and defense quality standards. We provide complete documentation including test reports, certificates of conformance, and heat treatment records.
