Inconel 718
Ideal for applications in gas turbine & power/process industry parts in aerospace, defense, & chemical industries.
Material & Process Capability
Inconel® 718 is a precipitation-hardenable nickel-based superalloy known for its superb tensile strength when subjected to extreme pressure and heat. It has rupture strength at temperatures up to 1290°F (980°C), making it ideal for high temperature applications such as gas turbine and power/process industry parts. The material is often used for critical applications in the aerospace, defense, and petrochemical industries.
The Velo3D intelligent additive printing solution uniquely enables companies to build the parts they need without compromising design or quality – resulting in complex parts higher in performance than traditional casting techniques or other additive methods.
General Process
In addition to its strength, Inconel 718 is characterized by its superb fatigue, creep and corrosion resistance in extreme environments subjected to high mechanical loads. However, it is a difficult metal to shape and machine using subtractive manufacturing techniques.
This data sheet specifies the expected mechanical properties and characteristics of this alloy when manufactured on a Velo3D Sapphire® System. All data is based on parts built using Velo3D standard 50 μm layer thickness parameters, using Praxair Tru-Form 718-35, a Velo3D-approved powder. Parts built from IN718 on a Sapphire System can be heat treated like those manufactured by other methods.
| Typical Volume Rate1, cc/hr | 60 |
| Density, g/cc (lbs/cubic inch) | 8.19 (0.296) |
| Relative Density, percent | 99.9+ |
| Surface Finish2, Sa, μm (μin) | <15 (590) for angles >25° from horizontal |
Mechanical Properties at Room Temperature
| As Printed | After Heat Treatment & HIP4 | |||
|---|---|---|---|---|
| Property3 | Mean -3σ | Mean | Mean -3σ | Mean |
| Modulus of Elasticity, GPa (msi) | 103 (14.9) | 110 (15.9) | 166 (24.1) | 199 (28.9) |
| Ultimate Tensile Strength, MPa (ksi) | 912 (132) | 953 (138) | 1286 (187) | 1320 (191) |
| Yield (0.2% Off set), MPa (ksi) | 512 (74.3) | 603 (87.4) | 1022 (148) | 1063 (154) |
| Elongation At Break, percent | 24.1 | 30.9 | 15.3 | 20.7 |
| Hardness, HRC | 42.3 | 43.4 | ||
| 1. Geometry-dependent. 2. Depends on orientation and process selected. 3. Mechanical & test samples printed in vertical orientation. 4. Heat treatment per ASTM F3055, Hot Isostatic Pressing: ASTM F3055, solution & age per AMS 5662. | ||||
DS-In718.EN.2022-02-28.v1-16.U.USL 0905-08095_L 2022-02-28. Specifications are subject to change without notice.
