Nickel Alloy NiCo20Cr20MoTi vs Waspaloy
Nickel Alloy · grade comparison
Nickel Alloy NiCo20Cr20MoTi and Waspaloy are both nickel alloy grades. Waspaloy is the stronger of the two: tensile strength 930 MPa (135 ksi) against 880 MPa (128 ksi) for NiCo20Cr20MoTi, about 6% more. Waspaloy is harder — 250 HB against 190 HB for NiCo20Cr20MoTi — which matters for wear surfaces and threads. NiCo20Cr20MoTi runs hotter in service (800°C vs 650°C continuous). On the shop floor, NiCo20Cr20MoTi welds better (very good vs fair), NiCo20Cr20MoTi forms better (good vs fair), and Waspaloy sits in a lower cost tier (premium, $$$) than NiCo20Cr20MoTi (high, $$$$).
NiCo20Cr20MoTiChoose it when the part sees heat, or when it will be welded.
WaspaloyChoose it when strength drives the design, or when surface hardness matters.
NiCo20Cr20MoTi vs Waspaloy: 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
Hardness, Vickers
Hardness, Rockwell C
Same in both: Poisson's Ratio 0.3 · Fracture Toughness (K_IC) 110 MPa·√m100 ksi·√in
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)
Same in both: Latent Heat of Fusion 290 J/g125 BTU/lb · 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.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 235 MJ/kg101,032 BTU/lb · 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 | NiCo20Cr20MoTi | Waspaloy |
|---|---|---|
| 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.
NiCo20Cr20MoTi vs Waspaloy — frequently asked
Is Waspaloy stronger than NiCo20Cr20MoTi?
Yes. Waspaloy has a typical tensile strength of 930 MPa (135 ksi) against 880 MPa (128 ksi) for NiCo20Cr20MoTi — about 6% more.
Which is cheaper, NiCo20Cr20MoTi or Waspaloy?
Waspaloy 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, NiCo20Cr20MoTi or Waspaloy?
NiCo20Cr20MoTi. Its weldability rates very good (75/100) against fair (35/100) for Waspaloy.
Ready to make it?
Upload a CAD file and FabDigit prices the part in NiCo20Cr20MoTi and Waspaloy 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.