Nickel Alloy Alloy 242 vs Hastelloy C276
Nickel Alloy · grade comparison
Nickel Alloy Alloy 242 and Hastelloy C276 are both nickel alloy grades. Both yield at about 375 MPa — strength does not separate them. Hastelloy C276 is the more ductile: elongation 60% versus 48% for Alloy 242, and Alloy 242 is harder (215 HB vs 194 HB). Alloy 242 is stiffer (217 GPa vs 205 GPa) and Alloy 242 runs hotter in service (815°C vs 650°C continuous). On the shop floor, Hastelloy C276 welds better (excellent vs good) and Hastelloy C276 sits in a lower cost tier (premium, $$$) than Alloy 242 (high, $$$$).
Alloy 242Choose it when the part sees heat.
Hastelloy C276Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
Alloy 242 vs Hastelloy C276: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Fracture Toughness (K_IC)
Same in both: Poisson's Ratio 0.31
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
Max Service Temperature (continuous)
Latent Heat of Fusion
Same in both: Thermal Expansion (CTE, 20–100 °C) 11.2 µm/m·K6.2 µin/in·°F · Min Service Temperature -196°C-321 °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.
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability 18 / 100 · Machinability Rating (AISI 1212 = 100 %) 12%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 14 kg CO₂/kg
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 89 kN·m/kg
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 | Alloy 242 | Hastelloy C276 |
|---|---|---|
| CNC machining | — | Yes |
| Sheet metal | — | 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.
Alloy 242 vs Hastelloy C276 — frequently asked
What is the difference between Alloy 242 and Hastelloy C276?
Nickel Alloy Alloy 242 and Hastelloy C276 are both nickel alloy grades. Both yield at about 375 MPa — strength does not separate them. Hastelloy C276 is the more ductile: elongation 60% versus 48% for Alloy 242, and Alloy 242 is harder (215 HB vs 194 HB).
Which is cheaper, Alloy 242 or Hastelloy C276?
Hastelloy C276 is the lower-cost material: it sits in the premium tier ($$$) while Alloy 242 is high ($$$$). 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, Alloy 242 or Hastelloy C276?
Hastelloy C276. Its weldability rates excellent (85/100) against good (60/100) for Alloy 242.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alloy 242 and Hastelloy C276 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.