Nickel Alloy CX2MW vs CY-40
Nickel Alloy · grade comparison
Nickel Alloy CX2MW and CY-40 are both nickel alloy grades. CX2MW is the stronger of the two: yield strength 335 MPa (48.6 ksi) against 245 MPa (35.5 ksi) for CY-40, about 37% more; tensile strength follows at 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi). CX2MW is the more ductile: elongation 45% versus 38% for CY-40, and CX2MW is harder (200 HB vs 145 HB). CY-40 runs hotter in service (1,000°C vs 675°C continuous) and CY-40 conducts heat better (14.8 W/m·K vs 10.1 W/m·K). On the shop floor, CY-40 machines more easily (28 vs 15 out of 100) and CX2MW welds better (very good vs good).
CX2MWChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
CY-40Choose it when the part sees heat, or when the part is machined in volume.
CX2MW vs CY-40: 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.
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Compressive Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Poisson's Ratio 0.31 · Reduction in Area 40%
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
Castability
Brazeability / Solderability
Polishability
Formability (cold)
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)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 3
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 | CX2MW | CY-40 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
CX2MW vs CY-40 — frequently asked
Is CX2MW stronger than CY-40?
Yes. CX2MW has a typical yield strength of 335 MPa (48.6 ksi) against 245 MPa (35.5 ksi) for CY-40 — about 37% more. Tensile strength is 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi).
Which is cheaper, CX2MW or CY-40?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, CX2MW or CY-40?
CY-40, by a small margin. Both rate poor for machinability — 28/100 against 15/100 for CX2MW; for welding the order is CX2MW first (very good, 75/100) then CY-40 (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in CX2MW and CY-40 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.