Inconel 718 STA
VerifiedmetalInconel 718 STA is a nickel-chromium-iron precipitation-hardening superalloy solution heat-treated and aged to provide tensile strength around 1,380 MPa (200 ksi) with excellent creep resistance up to approximately 650°C, used primarily in jet engine turbine disks, fasteners, and high-temperature aerospace components. The STA condition balances high yield strength, good fatigue resistance, and toughness suitable for critical rotating and static load applications in extreme thermal environments.
turbine diskscombustor linersrocket engineshigh-temperature fastenersAM/SLM
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | — | Pa | 20 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | — | Pa | 20 entriesClick to expand | ||
Compressive Modulus(Ec) | — | Pa | 22°C · Sheet | — | |
Compressive Tangent Modulus vs Stress(Etn(σ)) | Curve (12 pts) | Pa | 21°C · L | — | |
Compressive Yield Strength(Fcy) | — | Pa | 17 entriesClick to expand | ||
Elongation at Break(εf) | — | - | 25 entriesClick to expand | ||
Fatigue Crack Growth Rate(da/dN) | Curve (6 pts) | m/cycle | 538°C | — | |
Fracture Toughness(KIC) | — | Pa·√m | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Poisson's Ratio vs Temperature(ν(T)) | Curve (17 pts) | - | — | — | |
Reduction of Area(RA) | — | - | 20 entriesClick to expand | ||
Shear Modulus(G) | — | Pa | 22°C · Sheet | — | |
Ultimate Shear Strength(Fsu) | — | Pa | 10 entriesClick to expand | ||
S–N Curve (Wöhler)(S–N) | Curve (40 pts) | Pa | 538°C · LT | — | |
Stress Rupture Curve(σr(t)) | Curve (12 pts) | Pa | 538°C | — | |
Stress–Strain Curve(σ–ε) | Curve (11 pts) | Pa | 20°C | — | |
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | Curve (10 pts) | Pa | 21°C · L | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | 29 entriesClick to expand | ||
UTS vs Time (Creep Strength)(Ftu(t)) | Curve (16 pts) | Pa | 538°C | — | |
Yield Strength (0.2% offset)(σy) | — | Pa | 29 entriesClick to expand | ||
Yield Strength vs Temperature(σy(T)) | Curve (8 pts) | Pa | — | — | |
Young's Modulus(E) | — | Pa | 649°C | — | |
Young's Modulus vs Temperature(E(T)) | Curve (8 pts) | Pa | — | — | |
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 (10 pts) | 1/K | — | — | |
Specific Heat Capacity(Cp) | — | J/(kg·K) | — | — | |
Thermal Conductivity(k) | — | W/(m·K) | 22°C | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (8 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 | — | — |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
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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.