Nickel Alloy Inconel 718 vs NiCo20Cr20MoTi
Nickel Alloy · grade comparison
Nickel Alloy Inconel 718 and NiCo20Cr20MoTi are both nickel alloy grades. Inconel 718 is the stronger of the two: tensile strength 965 MPa (140 ksi) against 880 MPa (128 ksi) for NiCo20Cr20MoTi, about 10% more. Inconel 718 is harder — 200 HB against 190 HB for NiCo20Cr20MoTi — which matters for wear surfaces and threads. NiCo20Cr20MoTi is stiffer (221 GPa vs 200 GPa) and NiCo20Cr20MoTi runs hotter in service (800°C vs 540°C continuous). On the shop floor, Inconel 718 sits in a lower cost tier (premium, $$$) than NiCo20Cr20MoTi (high, $$$$).
Inconel 718Choose it when strength drives the design, or when surface hardness matters.
NiCo20Cr20MoTiChoose it when the part sees heat.
Inconel 718 vs NiCo20Cr20MoTi: 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, Vickers
Same in both: Hardness, Rockwell B 92 HRB
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 78 / 100
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
Same in both: Thermal Shock Resistance Index 4
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 | NiCo20Cr20MoTi |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| 3D printing | Yes | — |
| Default condition | Solution Annealed | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | 1.5 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
Inconel 718 vs NiCo20Cr20MoTi — frequently asked
Is Inconel 718 stronger than NiCo20Cr20MoTi?
Yes. Inconel 718 has a typical tensile strength of 965 MPa (140 ksi) against 880 MPa (128 ksi) for NiCo20Cr20MoTi — about 10% more.
Which is cheaper, Inconel 718 or NiCo20Cr20MoTi?
Inconel 718 is the lower-cost material: it sits in the premium tier ($$$) while NiCo20Cr20MoTi 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 NiCo20Cr20MoTi?
NiCo20Cr20MoTi. Its weldability rates very good (75/100) against very good (70/100) for Inconel 718.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Inconel 718 and NiCo20Cr20MoTi 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.