Nickel Alloy CW-12MW vs N12MV
Nickel Alloy · grade comparison
Nickel Alloy CW-12MW and N12MV are both nickel alloy grades. N12MV is the stronger of the two: tensile strength 585 MPa (84.8 ksi) against 550 MPa (79.8 ksi) for CW-12MW, about 6% more. CW-12MW is lighter (8.94 g/cm³ vs 9.24 g/cm³ for N12MV) and N12MV is stiffer (216 GPa vs 205 GPa). On the shop floor, CW-12MW welds better (good vs fair).
CW-12MWChoose it when weight is the constraint, or when it will be welded.
N12MVChoose it when strength drives the design.
CW-12MW vs N12MV: 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)
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Poisson's Ratio 0.31 · Yield Strength (0.2% offset) 350 MPa50.8 ksi · Elongation at Break 10% · Reduction in Area 12% · Hardness, Brinell 200 HB · Hardness, Rockwell B 94 HRB · Hardness, Rockwell C 15 HRC
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)
Latent Heat of Fusion
Same in both: Max Service Temperature (continuous) 650°C1,202 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.3 % 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
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 12%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 40%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | CW-12MW | N12MV |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
CW-12MW vs N12MV — frequently asked
Is N12MV stronger than CW-12MW?
Yes. N12MV has a typical tensile strength of 585 MPa (84.8 ksi) against 550 MPa (79.8 ksi) for CW-12MW — about 6% more.
Which is cheaper, CW-12MW or N12MV?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, CW-12MW or N12MV?
CW-12MW, by a small margin. Both rate poor for machinability — 22/100 against 15/100 for N12MV; for welding the order is CW-12MW first (good, 55/100) then N12MV (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in CW-12MW and N12MV 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.