High Strength. Corrosion Resistant.
Aerospace Quality.
17-4 PH stainless steel is a precipitation-hardening martensitic stainless steel known for its high strength, excellent toughness, and good corrosion resistance for demanding aerospace and industrial applications.
17-4 PH (UNS S17400) is a precipitation-hardening martensitic stainless steel that offers an outstanding combination of high strength, hardness, toughness, and moderate corrosion resistance.
It is widely used in aerospace, defense, and industrial applications where high performance and reliability are critical.
17-4 PH is available in multiple product forms and is certified to AMS5643 and AMS5604.
Aerospace structural componentsLanding gear componentsEngine and turbine partsFasteners and fittingsHigh-strength shafts and pinsDefense and marine hardwareValves and actuatorsOil and gas equipment| Products | Description | Specs |
|---|---|---|
 17-4 Round Bar | Solid round bar in various diameters and lengths | AMS5643 |
 17-4 Flat Bar | Flat bar in a range of widths and thicknesses | AMS5643 |
 17-4 Square Bar | Square bar for aerospace and industrial applications | AMS5643 |
 17-4 Forged Block | Forged block for machining critical components | AMS5643 |
 17-4 Sheet | Sheet in various thicknesses and widths | AMS5604 |
 17-4 Plate | Plate in various thicknesses and sizes | AMS5604 |
Custom sizes, tempers, and cut lengths available upon request.
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