15-5PH / 17-4PH Stainless Manufacturer & Supplier
Martensitic PH stainless that reaches 1310 MPa with a single low temperature ageing treatment, so parts can be machined soft and hardened with minimal distortion. 15-5PH is the cleaner, tougher consumable-electrode-remelted version of 17-4PH.
UNS: AMS 5659 / AMS 5643 · UNS S15500 / S17400 | Category: Precipitation Hardening Stainless
Size Range
Outer Diameter: Bar 10-300 mm · plate and sheet to order
Chemical Composition (%)
| Cr | Ni | Cu | Nb+Ta |
|---|---|---|---|
| 14.0-15.5 (15-5PH) / 15.0-17.5 (17-4PH) | 3.50-5.50 / 3.00-5.00 | 2.50-4.50 | 0.15-0.45 |
Mechanical Properties
- Tensile Strength
- 1310 MPa (H900) to 930 MPa (H1150)
- Yield Strength
- 1170 MPa (H900)
- Elongation
- 10-16% by condition
- Hardness
- 40-44 HRC (H900)
Applicable Standards
- AMS 5659
- AMS 5643
- ASTM A564
- AMS 2750
- EN 10204 3.1
Applications
- Actuator bodies and shafts
- Structural fittings and brackets
- Valve and pump components
- Fasteners and pins
- Engine accessory hardware
Industries Served
- Airframe & Structures
- Engine & Propulsion
- Space & Launch
- Defence Aerospace
- MRO & Overhaul
- Ground Support Equipment
Equivalent Grades
- AMS 5659 (15-5PH)
- AMS 5659 (15-5PH)
- AMS 5643 (17-4PH)
- AMS 5643 (17-4PH)
- UNS S15500
- UNS S15500
- UNS S17400
- UNS S17400
- 1.4545
- 1.4545