17-4PH Stainless Steel H900
Verifiedmetal17-4PH stainless steel is a precipitation-hardening martensitic stainless steel (Fe-Cr-Ni-Cu-Nb) used extensively in aerospace and high-performance applications for components requiring high strength, corrosion resistance, and thermal stability to approximately 600°C. The H900 condition, achieved through solution annealing followed by precipitation hardening at 480°C, delivers yield strengths around 1,310 MPa and ultimate tensile strengths near 1,450 MPa with moderate ductility, making it suitable for critical fasteners, pump shafts, compressor components, and bearing races.
aerospacestructural
Compliance & Regulations
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | — | Pa | 5 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | — | Pa | 5 entriesClick to expand | ||
Compressive Modulus(Ec) | Curve (10 pts) | Pa | — | — | |
Compressive Yield Strength(Fcy)3 entries | — | Pa | 22°C · Bar · H900 · AMS 5643 · L · t=<8.000 in | — | |
| ↳ | — | Pa | 22°C · Bar · H900 · AMS 5643 · L · t=<8.000 in | — | |
| ↳ | Curve (6 pts) | Pa | L | — | |
Elongation at Break(εf)2 entries | — | - | 22°C · Forging/Tubing · H900 · AMS 5643 · L · t=<8.000 in | — | |
| ↳ | — | - | 22°C · Bar · H900 · AMS 5643 · L · t=<8.000 in | — | |
Poisson's Ratio(ν) | — | - | 22°C | — | |
Shear Modulus(G) | — | Pa | 22°C · Investment Casting | — | |
Ultimate Shear Strength(Fsu)3 entries | — | Pa | 22°C · Bar · H900 · AMS 5643 · t=<8.000 in | — | |
| ↳ | — | Pa | 22°C · Bar · H900 · AMS 5643 · t=<8.000 in | — | |
| ↳ | Curve (7 pts) | Pa | — | — | |
S–N Curve (Wöhler)(S–N) | — | Pa | 7 entriesClick to expand | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | Curve (47 pts) | Pa | 21°C · L | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | 5 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | — | Pa | 5 entriesClick to expand | ||
Young's Modulus(E) | — | Pa | 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
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T)) | Curve (13 pts) | 1/K | — | — | |
Specific Heat vs Temperature(Cp(T)) | Curve (29 pts) | J/(kg·K) | — | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (17 pts) | W/(m·K) | — | — |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | 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.