Alloy 15-5PH
(UNS S15500 ) W. Nr. 1.4540
| Chemical composition | Cu | Si | p | S | Mn | Cr | Ni | C | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| % Present (Max) | 2.5 – 4.5 | 1.00 | 0.045 | 0.035 | 1.00 | 14 – 15.5 | 3.5 – 5.5 | 0.07 | 0.15 – 0.45 |
Alloy 15-5 PH stainless steel is a martensitic precipitation-hardening stainless steel with approximately 15% Chromium and 5% Nickel.
It has high strength, high hardness, and excellent corrosion resistance. Strength can be further increased by a single low temperature heat treatment.
Compared to 17-4 PH, it offers better transverse toughness and ductility; better mechanical properties in larger cross-sections, and better forgeability. It is readily weldable. It can be machined in any of the several Thermal Conditions available to this grade.
Note: Values are in accordance with EN 10088 specifications. Actual mill certs available upon request.