Nickel Alloy Haynes 282 vs Inconel 718
Nickel Alloy · grade comparison
Nickel Alloy Haynes 282 and Inconel 718 are both nickel alloy grades. Both yield at about 550 MPa — strength does not separate them. Haynes 282 is the more ductile: elongation 55% versus 45% for Inconel 718. Haynes 282 is stiffer (217 GPa vs 200 GPa) and Haynes 282 runs hotter in service (850°C vs 540°C continuous). On the shop floor, Haynes 282 welds better (excellent vs very good) and Inconel 718 sits in a lower cost tier (premium, $$$) than Haynes 282 (high, $$$$).
Haynes 282Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Inconel 718Choose it when cost is the deciding factor.
Haynes 282 vs Inconel 718: 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)
Elongation at Break
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Same in both: Yield Strength (0.2% offset) 550 MPa79.8 ksi · Reduction in Area 55% · Shear Strength 620 MPa89.9 ksi · Charpy V-Notch Impact (RT) 130 J95.9 ft·lbf · Hardness, Brinell 200 HB · Hardness, Rockwell B 92 HRB · Hardness, Vickers 210 HV
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)
Max Service Temperature (continuous)
Min Service Temperature
Latent Heat of Fusion
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.4 % IACS
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)
Brazeability / Solderability
Polishability
Same in both: Castability 45 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Water
Same in both: Embodied Carbon (primary production) 16 kg CO₂/kg · 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 | Haynes 282 | Inconel 718 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | Yes |
| 3D printing | — | Yes |
| Default condition | — | Solution Annealed |
| Relative cost | $$$$ High | $$$ Premium |
| 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.
Haynes 282 vs Inconel 718 — frequently asked
What is the difference between Haynes 282 and Inconel 718?
Nickel Alloy Haynes 282 and Inconel 718 are both nickel alloy grades. Both yield at about 550 MPa — strength does not separate them. Haynes 282 is the more ductile: elongation 55% versus 45% for Inconel 718.
Which is cheaper, Haynes 282 or Inconel 718?
Inconel 718 is the lower-cost material: it sits in the premium tier ($$$) while Haynes 282 is high ($$$$). 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, Haynes 282 or Inconel 718?
Haynes 282. Its weldability rates excellent (88/100) against very good (70/100) for Inconel 718.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Haynes 282 and Inconel 718 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.