Project Description

15-5PH (UNS S15500)

* Brief
15-5 PH alloy was designed to have greater toughness than 17-4 PH. The 15-5 PH alloy is martensitic in structure in the annealed condition and is further strengthened by a relatively low temperature heat treatment which precipitates a copper containing phase in the alloy. 15-5 PH is also referred to as XM-12 in some specifications.

* Chemical composition, %

CSiMnSPNiCrNb+TaCuFe
≤0.07≤1.0≤1.0≤0.03≤0.043.5-5.514.0-15.50.15-0.452.5-4.5Rest

* Typical physical & mechanical property (Annealed)

Density, g/cm3Tensile strength, MPaYield strength, MPaElongation, %Hardness, Rc
7.801103793535

* Specification

Bar, Rod, WirePlate, Sheet, Strip
ASTM A564, 705, SAE AMS 5644ASTM A693, SAE AMS 5528

* Feature
1. Precipitation Hardening
2. High Strength
3. Moderate corrosion resistance to 600°F

* Application
1. Aerospace applications
2. Chemical and petrochemical applications
3. Pulp and paper
4. Food processing