| Category | Steel |
| Class | Stainless steel |
| Type | Precipitation-hardening standard |
| Designations | United States: AMS 5342 , AMS 5343 , AMS 5344 , AMS 5355 , AMS 5604 , AMS 5622 , AMS 5643 , AMS 5825 , ASME SA564 , ASME SA705 , ASTM A564 , ASTM A693 , ASTM A705 , MIL SPEC MIL-C-24111 , MIL SPEC MIL-S-81506 , MIL SPEC MIL-S-81591 , SAE J467 (17-4PH) , UNS S17400 |
| Element | Weight % |
| C | 0.07 |
| Mn | 1.00 |
| Si | 1.00 |
| Cr | 15.5-17.5 |
| Ni | 3.0-5.0 |
| P | 0.04 |
| S | 0.03 |
| Cu | 3.0-5.0 |
| Nb+Ta | 0.15-0.45 |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 196 | 25 | |
| Tensile Strength (Mpa) | 1070 | 25 | H1025 (bar, plate, sheet, strip) |
| Yield Strength (Mpa) | 1000 | ||
| Elongation (%) | 12 | ||
| Reduction in Area (%) | 45 | ||
| Hardness (HRC) | 35-42 | 25 | H1025 (bar, plate, sheet, strip) |
