Stainless Steel 15-5 is a precipitation hardening martensitic stainless steel. It is used in applications requiring better corrosion resistance and transverse properties compared to other similar martensitic grades. Strength and toughness desired can be altered by temperate range in the heat treatment process.
Standards
- UNS S15500
- AMS 5659
- ASTM A564
15-5 PH Applications
- Valves
- Aircraft Parts
- Gears
- Pump Parts
Composition(%)
- Carbon 0.070 Max
- Chromium 14.0-15.50
- Columbian + Tantalum 0.15-0.45
- Copper 2.50-4.50
- Manganese 1.00 Max
- Nickel 3.50-5.50
- Phosphorus 0.040 Max
- Silicon 1.00 Max
- Sulfur 0.30 Max
15-5 Stainless Steel Mechanical Properties
| Material Type | Condition | Ultimate Tensile Strength (PSI) | 0.2% Yield Strength (PSI) | Elongation (% In 2in.) | Reduction Of Area (%) | Hardness Brinell | Hardness Rockwell |
|---|---|---|---|---|---|---|---|
| 15-5 PH | H900 | 190,000 | 170,000 | 6 | 15 | 388 | C40 |
| H1025 | 155,000 | 145,000 | 8 | 27 | 331 | C35 | |
| H1075 | 145,000 | 125,000 | 9 | 28 | 311 | C32 | |
| H1150 | 135,000 | 105,000 | 11 | 30 | 277 | C28 | |
| H1150-M | 115,000 | 75,000 | 14 | 35 | 255 | C24 |