Nickel 205 vs Nickel 270
Nickel Alloy · grade comparison
Nickel 205 and Nickel 270 are both nickel alloy grades. Nickel 205 is the stronger of the two: yield strength 145 MPa (21 ksi) against 105 MPa (15.2 ksi) for Nickel 270, about 38% more; tensile strength follows at 440 MPa (63.8 ksi) vs 345 MPa (50 ksi). In exchange, Nickel 270 is the more ductile: elongation 50% versus 45% for Nickel 205, and Nickel 205 is harder (95 HB vs 45 HB). Nickel 270 runs hotter in service (600°C vs 315°C continuous) and Nickel 270 conducts heat better (85 W/m·K vs 70 W/m·K). On the shop floor, Nickel 205 machines more easily (32 vs 20 out of 100).
Nickel 205Choose it when strength drives the design, or when the part is machined in volume.
Nickel 270Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Nickel 205 vs Nickel 270: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 76 GPa11 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31 · Charpy V-Notch Impact (RT) 200 J148 ft·lbf
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 8.89 g/cm³0.32 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 456 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.3 µm/m·K7.4 µin/in·°F · Latent Heat of Fusion 297 J/g128 BTU/lb · Min Service Temperature -250°C-418 °F
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 70 / 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
Polishability
Same in both: Brazeability / Solderability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Specific Stiffness (E / density) 23.3 MN·m/kg · Thermal Shock Resistance Index 11
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 | Nickel 205 | Nickel 270 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
Nickel 205 vs Nickel 270 — frequently asked
Is Nickel 205 stronger than Nickel 270?
Yes. Nickel 205 has a typical yield strength of 145 MPa (21 ksi) against 105 MPa (15.2 ksi) for Nickel 270 — about 38% more. Tensile strength is 440 MPa (63.8 ksi) vs 345 MPa (50 ksi).
Which is cheaper, Nickel 205 or Nickel 270?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Nickel 205 or Nickel 270?
Nickel 205, by a small margin. Both rate poor for machinability — 32/100 against 20/100 for Nickel 270; for welding the order is Nickel 270 first (excellent, 85/100) then Nickel 205 (very good, 80/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Nickel 205 and Nickel 270 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.