17-4PH is a precipitation-hardened martensitic stainless steel (Fe-Cr-Ni-Cu-Nb) combining high strength (typically 1310–1655 MPa depending on temper) with good corrosion resistance and fatigue performance for aerospace and defense applications. Available in multiple H-series heat-treated conditions (H900–H1150M) offering strength/toughness trade-offs, plus annealed (A) and solution-treated (Sta) soft conditions for fabrication.
Compliance & Regulations
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)3 entries | Curve (10 pts) | Pa | — | ||
| ↳ | 206.8 | GPa | 22°C · Sheet/Strip/Plate | ||
| ↳ | 20.68 | GPa | 22°C · Forging/Tubing | ||
Poisson's Ratio(ν) | 0.2700 | - | 22°C | ||
Shear Modulus(G)2 entries | 87.56 | GPa | 22°C · Investment Casting | ||
| ↳ | 77.22 | GPa | 22°C · Sheet/Strip/Plate | ||
Young's Modulus(E)2 entries | 196.5 | GPa | 22°C · Sheet/Strip/Plate | ||
| ↳ | 13.79 | GPa | 22°C · Forging/Tubing |
5 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))3 entries | Curve (13 pts) | 1/K | — | ||
| ↳ | Curve (13 pts) | 1/K | — | ||
| ↳ | 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 |