15-5 PH Stainless Steel
UNS S15500
Description
15-5 PH stainless steel also referred to as XM-12 in some specifications, 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.
Chemical Component
| Ni | Cr | Mn | Cu | Si | C | Nb + Ta | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 3.5-5.5% | 14.0-15.5% | 1.0% max | 2.5-4.5% | 1.0% max | 0.07% max | 0.15-0.45% | 0.03% max | 0.04% max | Balance |
Basic Information
| Items | 15-5 PH stainless steel |
|---|---|
| Catalog | ACMA-Fe-A037 |
| Density | 0.280 lb/in3 |
| Electrical Resistivity, Ohm-circ mil/ft | 589 |
| Poisson's Ratio | 0.272 |
| Coefficient of Thermal Expansion, in/in°F x 10-6 | 70-800 °F: 6.3 |
| Thermal Conductivity, Btu·ft/ft2·hr·°F | At 200 °F: 10.6 |
| Modulus of Elasticity Dynamic, psi x 106 | At 70 °F: 28.5 |
Material Forms
Alfa Chemistry offers 15-5 PH stainless steel in a variety of forms, including Plate, Round Bar.
Mechanical Properties
| Properties | H900 | H1075 | H1150 |
|---|---|---|---|
| Ultimate Tensile Strength, ksi | 190 | 145 | 135 |
| 0.2% Yield Strength, ksi | 170 | 125 | 105 |
| Elongation % in 2" minimum | 10 | 13 | 16 |
| Reduction of Area, % | 35 | 45 | 50 |
| Hardness, Brinell | 388 | 331 | 277 |
Specifications
ASME: SA-564, SA-693, SA-705
Other: BAC 5439 Rev H Class A Type 1, BMS 7-240G Type 1, BSS7055 Rev A
Features
- Precipitation Hardening
- High Strength
- Moderate corrosion resistance to 600 °F
Applications
- Aerospace applications
- Chemical and petrochemical applications
- Pulp and paper
- Food processing
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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