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.
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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)3 entries | Curve (10 pts) | ksi | — | ||
| ↳ | 30,000 | ksi | 22°C · Sheet/Strip/Plate | ||
| ↳ | 3,000 | ksi | 22°C · Forging/Tubing | ||
Poisson's Ratio(ν) | 0.2700 | - | 22°C | ||
Shear Modulus(G)2 entries | 12,700 | ksi | 22°C · Investment Casting | ||
| ↳ | 11,200 | ksi | 22°C · Sheet/Strip/Plate | ||
Young's Modulus(E)2 entries | 28,500 | ksi | 22°C · Sheet/Strip/Plate | ||
| ↳ | 2,000 | ksi | 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) | µin/in·°F | — | ||
| ↳ | Curve (13 pts) | µin/in·°F | — | ||
| ↳ | Curve (13 pts) | µin/in·°F | — | ||
Specific Heat vs Temperature(Cp(T)) | Curve (17 pts) | BTU/(lb·°F) | — | ||
Thermal Conductivity vs Temperature(k(T)) | Curve (17 pts) | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2820 | lb/in³ | 22°C |