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HARALD PIHL | Special Alloys, Titanium & Nickel Supplier
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If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Let’s find exactly what you came for
If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Let’s find exactly what you came for
If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Let’s find exactly what you came for
If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Let’s find exactly what you came for
If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Let’s find exactly what you came for
If the product you are looking for is not in stock, we are here to help! Through our extensive network of suppliers, we can source almost any alloy or material, in any form and dimension.
Alloy 15-5 PH is a precipitation hardening martensitic stainless steel. The material is also known as XM-12 and UNS S15500. It is developed to offer high strength, good toughness and improved structural uniformity compared to 17-4 PH. The alloy is used in demanding applications where the combination of mechanical performance and corrosion resistance is crucial.
Alloy 15-5 PH achieves its mechanical properties through controlled heat treatment, also known as age hardening. The modified chemical composition provides improved microstructure, better transverse toughness and more consistent properties over larger dimensions.
Type: Precipitation hardening martensitic stainless steel
Alloy: Fe-Cr-Ni-Cu-Nb
Structure: Martensitic structure after heat treatment
Alternative designations: XM-12, UNS S15500
Standards: ASTM A564, ASTM A705, AMS 5659
European designation: 1.4545
Aerospace industry
Structural components, shafts and highly stressed parts.
Offshore and Marine
Components with requirements for combined strength and corrosion resistance.
Energy and Process Industry
Valves, pumps, couplings and highly stressed machine parts.
Tools and Mechanical Systems
Shafts, bolts and precision components.
Alloy 15-5 PH offers good general corrosion resistance in moderately aggressive environments. The material has better resistance to stress corrosion cracking than some other martensitic grades, but is not intended for highly aggressive chloride environments.
| Yield strength 0.2% | ~1070–1170 MPa |
| Tensile strength | ~1170–1310 MPa |
| Elongation at break | ~10–15% |
| Density | ~7.8 g/cm³ |
| Modulus of elasticity | ~200 GPa |
| Recommended maximum temperature | ≤315°C |
| Weldability | Good. Post-weld heat treatment is recommended. |
With a global network of reliable suppliers, we offer customized solutions and fast access to the right precipitation hardening stainless steel for your needs.
Contact us if you need technical advice or a quote. We help you find the right material for your application.
Missing any spec, form, or dimension?