Nickel Alloy Inconel 718 vs N07776
Nickel Alloy · grade comparison
Nickel Alloy Inconel 718 and N07776 are both nickel alloy grades. N07776 is the stronger of the two: yield strength 1,010 MPa (146 ksi) against 550 MPa (79.8 ksi) for Inconel 718, about 84% more; tensile strength follows at 1,300 MPa (189 ksi) vs 965 MPa (140 ksi). In exchange, Inconel 718 is the more ductile: elongation 45% versus 22% for N07776, and N07776 is harder (340 HB vs 200 HB). N07776 runs hotter in service (650°C vs 540°C continuous). On the shop floor, Inconel 718 welds better (very good vs fair) and Inconel 718 sits in a lower cost tier (premium, $$$) than N07776 (high, $$$$).
Inconel 718Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
N07776Choose it when strength drives the design, or when the part sees heat.
Inconel 718 vs N07776: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Hardness, Rockwell C
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 435 J/kg·K0.1 BTU/lb·°F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.4 % IACS · Electrical Resistivity 1.25×10⁻⁶ Ω·m49.2 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 35%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Inconel 718 | N07776 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| 3D printing | Yes | — |
| Default condition | Solution Annealed | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | 1.5 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
Inconel 718 vs N07776 — frequently asked
Is N07776 stronger than Inconel 718?
Yes. N07776 has a typical yield strength of 1,010 MPa (146 ksi) against 550 MPa (79.8 ksi) for Inconel 718 — about 84% more. Tensile strength is 1,300 MPa (189 ksi) vs 965 MPa (140 ksi).
Which is cheaper, Inconel 718 or N07776?
Inconel 718 is the lower-cost material: it sits in the premium tier ($$$) while N07776 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, Inconel 718 or N07776?
Inconel 718. Its weldability rates very good (70/100) against fair (40/100) for N07776.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Inconel 718 and N07776 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.