17-4PH Stainless Steel H925 is a precipitation-hardened martensitic stainless steel (17% Cr, 4% Ni, Cu, Nb) heat-treated to H925 condition (925°F/496°C aging) for high strength and corrosion resistance in aerospace applications including fasteners, shafts, and structural components. The H925 temper delivers approximately 1310 MPa (190 ksi) yield strength with moderate ductility and excellent fatigue resistance, suitable for service to approximately 300°C.
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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) | ksi | — | ||
Elongation at Break(εf)2 entries | 10.00 | - | 22°C · Forging/Tubing · H925 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 10.00 | - | 22°C · Bar · H925 · AMS 5643 · L · t=<8.000 in | ||
Poisson's Ratio(ν) | 0.2700 | - | 22°C | ||
Shear Modulus(G) | 12,700 | ksi | 22°C · Investment Casting | ||
Ultimate Tensile Strength(σUTS)4 entries | 170 | ksi | 22°C · Sheet/Strip/Plate · H925 · AMS 5604 · LT · t=≤4.000 in | ||
| ↳ | 170 | ksi | 22°C · Forging/Tubing · H925 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 170 | ksi | 22°C · Bar · H925 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 178 | ksi | 22°C · Bar · H925 · AMS 5643 · L · t=<8.000 in | ||
Yield Strength (0.2% offset)(σy)4 entries | 155 | ksi | 22°C · Sheet/Strip/Plate · H925 · AMS 5604 · LT · t=≤4.000 in | ||
| ↳ | 155 | ksi | 22°C · Forging/Tubing · H925 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 155 | ksi | 22°C · Bar · H925 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 167 | ksi | 22°C · Bar · H925 · AMS 5643 · L · t=<8.000 in | ||
Young's Modulus(E) | 28,500 | ksi | 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) | 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 |