Nickel Alloy Inconel 718 vs MP35N
Nickel Alloy · grade comparison
Nickel Alloy Inconel 718 and MP35N are both nickel alloy grades. MP35N is the stronger of the two: yield strength 1,790 MPa (260 ksi) against 550 MPa (79.8 ksi) for Inconel 718, about 3.3 times as much; tensile strength follows at 1,930 MPa (280 ksi) vs 965 MPa (140 ksi). In exchange, Inconel 718 is the more ductile: elongation 45% versus 10% for MP35N, and MP35N is harder (480 HB vs 200 HB). MP35N is stiffer (233 GPa vs 200 GPa) and Inconel 718 runs hotter in service (540°C vs 425°C continuous). On the shop floor, Inconel 718 welds better (very good vs poor) and Inconel 718 sits in a lower cost tier (premium, $$$) than MP35N (high, $$$$).
Inconel 718Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
MP35NChoose it when strength drives the design.
Inconel 718 vs MP35N: 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
Compressive Strength
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Min Service Temperature -253°C-423 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
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 Water
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 16 kg CO₂/kg
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 | MP35N |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| 3D printing | Yes | — |
| Default condition | Solution Annealed | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | 1.5 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Electropolishing | Yes | — |
| HVOF Coating | Yes | — |
They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
Inconel 718 vs MP35N — frequently asked
Is MP35N stronger than Inconel 718?
Yes. MP35N has a typical yield strength of 1,790 MPa (260 ksi) against 550 MPa (79.8 ksi) for Inconel 718 — about 3.3 times as much. Tensile strength is 1,930 MPa (280 ksi) vs 965 MPa (140 ksi).
Which is cheaper, Inconel 718 or MP35N?
Inconel 718 is the lower-cost material: it sits in the premium tier ($$$) while MP35N 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 is easier to machine, Inconel 718 or MP35N?
Inconel 718. Its machinability rates poor (18/100) against not recommended (12/100) for MP35N; for welding the order is Inconel 718 first (very good, 70/100) then MP35N (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Inconel 718 and MP35N 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.