17-4PH is a chromium-nickel-copper precipitation-hardening stainless steel offering high strength (up to 1310 MPa yield) and good corrosion resistance, commonly used in aerospace engine components, fasteners, and pump impellers. The "a" condition (as-cast from investment casting per AMS 5344) provides the baseline mechanical properties prior to age hardening, with moderate strength and ductility suitable for subsequent heat treatment to achieve desired strength levels.
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1 interactive curve for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | Curve (10 pts) | Pa | — | ||
Elongation at Break(εf) | 4.000 | - | 22°C · Investment Casting · a · AMS 5344 | ||
Poisson's Ratio(ν) | 0.2700 | - | 22°C | ||
Reduction of Area(RA) | 12.00 | - | 22°C · Investment Casting · a · AMS 5344 | ||
Shear Modulus(G) | 87.56 | GPa | 22°C · Investment Casting | ||
Ultimate Tensile Strength(σUTS) | 1.241 | GPa | 22°C · Investment Casting · a · AMS 5344 | ||
Yield Strength (0.2% offset)(σy) | 1.103 | GPa | 22°C · Investment Casting · a · AMS 5344 | ||
Young's Modulus(E) | 196.5 | GPa | 22°C · Sheet/Strip/Plate |
3 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T)) | Curve (13 pts) | 1/K | — | ||
Specific Heat vs Temperature(Cp(T)) | Curve (17 pts) | J/(kg·K) | — | ||
Thermal Conductivity vs Temperature(k(T)) | Curve (17 pts) | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.806 | kg/m³ | 22°C |