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Inconel® 718 Spherical Powder
Available Configurations
Properties common to all products in this list
| Weight |
|---|
| 10 g (0.022 lbs) to 1000 g (2.2 lbs) |
Need custom configurations? Please contact us.
Key Features
Inconel® 718 Spherical Powder (Ni 53/Cr 19/Fe 18/Nb/Mo/Ti, UNS N07718) is a precipitation-hardened nickel-chromium superalloy in gas-atomized spherical powder form:
Spherical Morphology for Consistent Layer Packing in Laser Powder Bed Fusion
High sphericity ensures consistent layer packing density in laser powder bed fusion, governing melt pool uniformity, as-built relative density, and mechanical property reproducibility between builds. Spherical morphology is critical for LPBF and directly determines process yield.
Most Studied Alloy for LPBF in the Aerospace Industry
Inconel 718 is one of the most studied alloys for laser powder bed fusion in the aerospace industry, used for rocket engine components, turbine blades, and turbocharger elements where complex geometry combined with high-temperature mechanical performance is required.
Post-Build Heat Treatment Recovers Wrought-Comparable Properties
Post-build heat treatments including homogenization and two-stage aging dissolve Laves and delta phases formed during rapid solidification and precipitate the γ′ and γ′′ strengthening phases, recovering properties comparable to wrought material.
Suitable for High-Velocity Thermal Spray Coatings
The powder is also used for high-velocity thermal spray coatings on components requiring superalloy surface properties without full component manufacture from powder or wrought feedstock.
Hot Isostatic Pressing of Near-Net-Shape Components
Applied for hot isostatic pressing of near-net-shape components where complex geometries with minimal post-process machining are required and wrought processing routes are impractical.
Industrial Applications
Inconel® 718 Spherical Powder is used across additive manufacturing, thermal spray coating, and powder metallurgy wherever the clean, flowable, and compositionally consistent feedstock of this grade is required:
- ✦ Laser Powder Bed Fusion of Aerospace Components
- Used as the primary feedstock for LPBF of rocket engine components, turbine blades, and turbocharger elements, where high sphericity ensures consistent layer packing density and the post-build heat treatment protocol recovers wrought-comparable mechanical properties.
- ✦ Wire Arc Additive Manufacturing and Directed Energy Deposition Feedstock
- Applied as feedstock for thermal spray and directed energy deposition processes building complex aerospace geometry, where the powder’s clean composition and consistent morphology support reproducible deposit microstructure.
- ✦ High-Velocity Thermal Spray Coatings
- Used for high-velocity thermal spray coatings on components requiring superalloy surface properties including high-temperature oxidation resistance, hardness, and creep resistance at the component surface.
- ✦ Hot Isostatic Pressing of Near-Net-Shape Components
- Applied for hot isostatic pressing of near-net-shape components where complex geometries and full density are both required and wrought processing routes are impractical or uneconomic.
- ✦ LPBF Parameter Optimization, Heat Treatment Development and Powder Characterization Research
- Used for LPBF parameter optimization, heat treatment development for AM-specific microstructures, powder flowability and packing characterization, and multi-material interface investigations combining 718 with other alloys for next-generation aerospace structures.
Material Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 250-410 |
| Elongation at break( % ) | 15 |
| Modulus of elasticity( GPa ) | 200 |
| Tensile strength( MPa ) | 800-1360 |
| Element | Value |
|---|---|
| Initial permeability | 1.0013 |
| Curie temperature( C ) | <-196 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 125 |
| Element | Value |
|---|---|
| Maximum use temperature in air( C ) | 700 |
| Melting point( C ) | 1260-1335 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 435@23°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 11.2@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 13@20-100°C |
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 8.19 |
Tolerances
| Mean Particle Size | Nominal | |
|---|---|---|
| Minimum Particle Size | Nominal | |
| Maximum Particle Size | Nominal | |
| Maximum Particle Size | Nominal | |
| Particle Size D10 | Nominal | |
| Particle Size D50 | Nominal | |
| Particle Size D90 | Nominal |