17-4PH Stainless Steel H1025
Verifiedmetal17-4PH (UNS S17400) is a precipitation-hardening martensitic stainless steel containing chromium, nickel, and copper that achieves high strength through heat treatment, commonly used in aerospace fasteners, pump shafts, and turbine components requiring corrosion resistance to 600°F. The H1025 condition provides a tensile yield strength of approximately 180 ksi after aging, offering excellent bearing and fatigue strength with moderate elongation suitable for highly stressed structural applications in jet engines and pressure vessels.
aerospacestructural
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Property OverviewNormalized to typical max values
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru)2 entries | 263 | ksi | 22°C · Bar · H1025 · AMS 5643 · t=<8.000 in · e/D=1.5 | ||
| ↳ | 332 | ksi | 22°C · Bar · H1025 · AMS 5643 · t=<8.000 in · e/D=2 | ||
Bearing Yield Strength(Fbry)2 entries | 211 | ksi | 22°C · Bar · H1025 · AMS 5643 · t=<8.000 in · e/D=1.5 | ||
| ↳ | 250 | ksi | 22°C · Bar · H1025 · AMS 5643 · t=<8.000 in · e/D=2 | ||
Compressive Modulus(Ec) | Curve (10 pts) | ksi | — | ||
Compressive Tangent Modulus vs Stress(Etn(σ)) | Curve (11 pts) | ksi | 21°C · L | ||
Compressive Yield Strength(Fcy) | 139 | ksi | 22°C · Bar · H1025 · AMS 5643 · L · t=<8.000 in | ||
Elongation at Break(εf)2 entries | 12.00 | - | 22°C · Forging/Tubing · H1025 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 12.00 | - | 22°C · Bar · H1025 · 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 Shear Strength(Fsu) | 95.00 | ksi | 22°C · Bar · H1025 · AMS 5643 · t=<8.000 in | ||
S–N Curve (Wöhler)(S–N)3 entries | Curve (40 pts) | ksi | 21°C · L | ||
| ↳ | Curve (40 pts) | ksi | 21°C · L | ||
| ↳ | Curve (40 pts) | ksi | 21°C · L | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain))2 entries | Curve (6 pts) | ksi | 21°C · L | ||
| ↳ | Curve (39 pts) | ksi | 21°C · L | ||
Ultimate Tensile Strength(σUTS)3 entries | 155 | ksi | 22°C · Sheet/Strip/Plate · H1025 · AMS 5604 · LT · t=≤4.000 in | ||
| ↳ | 155 | ksi | 22°C · Forging/Tubing · H1025 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 155 | ksi | 22°C · Bar · H1025 · AMS 5643 · L · t=<8.000 in | ||
Yield Strength (0.2% offset)(σy)3 entries | 145 | ksi | 22°C · Sheet/Strip/Plate · H1025 · AMS 5604 · LT · t=≤4.000 in | ||
| ↳ | 145 | ksi | 22°C · Forging/Tubing · H1025 · AMS 5643 · L · t=<8.000 in | ||
| ↳ | 145 | ksi | 22°C · Bar · H1025 · AMS 5643 · L · t=<8.000 in | ||
Young's Modulus(E) | 28,500 | ksi | 22°C · Sheet/Strip/Plate |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Rows with are inherited from the base material
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| 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) | — |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2820 | lb/in³ | 22°C |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
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RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.