Inconel 718 ST
VerifiedmetalInconel 718 is a nickel-base superalloy containing chromium, iron, niobium, and molybdenum, designed for high-temperature structural applications in jet engines, gas turbines, and aerospace components requiring strength retention to approximately 650°C (1200°F). The ST (solution-treated) condition, produced via investment casting per AMS 5383, provides controlled mechanical properties including yield strength, ultimate tensile strength, and bearing strength suitable for critical fasteners and bearing applications with intermediate ductility.
turbine diskscombustor linersrocket engineshigh-temperature fastenersAM/SLM
Compliance & Regulations
?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
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e/D Ratio
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru)2 entries | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in · e/D=1.5 | — | |
| ↳ | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in · e/D=2 | — | |
Bearing Yield Strength(Fbry)2 entries | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in · e/D=1.5 | — | |
| ↳ | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in · e/D=2 | — | |
Compressive Modulus(Ec) | — | ksi | 22°C · Sheet | — | |
Compressive Tangent Modulus vs Stress(Etn(σ)) | Curve (12 pts) | ksi | 21°C · L | — | |
Compressive Yield Strength(Fcy) | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
Elongation at Break(εf) | — | - | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
Fatigue Crack Growth Rate(da/dN) | Curve (6 pts) | m/cycle | 538°C | — | |
Fracture Toughness(KIC) | — | ksi·√in | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Poisson's Ratio vs Temperature(ν(T)) | Curve (17 pts) | - | — | — | |
Reduction of Area(RA) | — | - | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
Shear Modulus(G) | — | ksi | 22°C · Sheet | — | |
Ultimate Shear Strength(Fsu) | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
S–N Curve (Wöhler)(S–N) | Curve (40 pts) | ksi | 538°C · LT | — | |
Stress Rupture Curve(σr(t)) | Curve (12 pts) | ksi | 538°C | — | |
Stress–Strain Curve(σ–ε) | Curve (11 pts) | ksi | 20°C | — | |
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | Curve (10 pts) | ksi | 21°C · L | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
UTS vs Time (Creep Strength)(Ftu(t)) | Curve (16 pts) | ksi | 538°C | — | |
Yield Strength (0.2% offset)(σy) | — | ksi | 22°C · Investment Casting · ST · AMS 5383 · t=≤0.500 in | — | |
Yield Strength vs Temperature(σy(T)) | Curve (8 pts) | ksi | — | — | |
Young's Modulus(E) | — | ksi | 649°C | — | |
Young's Modulus vs Temperature(E(T)) | Curve (8 pts) | ksi | — | — |
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) | µin/in·°F | — | — | |
Specific Heat Capacity(Cp) | — | BTU/(lb·°F) | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | 22°C | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (8 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) | — | lb/in³ | — | — |
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.