17-4PH Chemical Composition
| Element | Percent By Weight Type 17-4ph |
|
|---|---|---|
| C | Carbon | 0.07 maximum |
| Mn | Manganese | 1.00 maximum |
| P | Phosphorus | 0.04 maximum |
| S | Sulfur | 0.03 maximum |
| Si | Silicon | 1.00 maximum |
| Cr | Chromium | 15.00 – 17.50 |
| Ni | Nickel | 3.00 – 5.00 |
| Cu | Copper | 3.00 – 5.00 |
| Nb Ta |
Columbium plus Tantalum |
0.15 – 0.45 |
Common Applications of 17-4 PH Stainless Steel
- Aerospace applications
- Fasteners
- Base plates
- Chemical processing equipment
- Oil and petroleum refining equipment
- Nuclear components
- Food grade stainless steel for processing equipment
- General metalworking applications that call for precipitation-hardening stainless steel
Standard Inventory SpecificationsÂ
- UNS S17400
- AMS 5604
- ASTM A 693
- ASME SA 693
- W.NR. 1.4542
- PWA-LCS
- GE-S400/S1000
- RR SABRe Edition 2
- DFARS Compliant
- SAE AMS 5604
Common Trade Names
- 17-4 (® AK Steel)
- ATI 17-4 (â„¢ Allegheny Technologies)
Inventory Size Range
- Sheet : 0.029″ – 0.130″
- Bar : 0.250″ – 5.000″
- Plate : 0.1875″ – 2.500″
17-4PH Physical Properties
- Melting Range: 2560-2625°F (1404-1440°C)
- Density: 0.2820 lb/in³
Mean Coefficient of Thermal Expansion (Annealed Condition)
| Temperature Range | Coefficients | ||
|---|---|---|---|
| °C | °F | μm/m·°C | in/in/°F·106 |
| 21-93 | 70-200 | 10.8 | 6.0 |
| 21-204 | 70-400 | 10.8 | 6.0 |
| 21-316 | 70-600 | 11.2 | 6.2 |
| 21-427 | 70-800 | 11.2 | 6.3 |
Thermal Conductivity (H 900 Condition)
| Temperature Range | W/m·K | Btu/(hr/ft²/in/°F) | |
|---|---|---|---|
| °C | °F | ||
| 149 | 300 | 17.90 | 124 |
| 260 | 500 | 19.50 | 135 |
| 460 | 860 | 22.50 | 156 |
| 482 | 900 | 22.60 | 157 |
Specific Heat (Annealed Condition)
| Temperature Range | J/gg·K | Btu/lb/°F | |
|---|---|---|---|
| °C | °F | ||
| 0-100 | 32-212 | 460 | 0.11 |
Electrical Resistivity (Annealed Condition)
- Microhm-cm: 98
Mechanical Properties and Yield Strength 17-4PH Stainless Steel – Cold Flattened (Annealed)
- Ultimate Tensile Strength Ksi (MPa): 160 (1103)
- 0.2% Tensile Yield Strength Ksi (MPa): 145 (1000)
- Elongation % in 2″ (50mm): 5.0
- Hardness Rockwell C: 35
