Nickel Alloy CW-12MW vs N-12M-1
Nickel Alloy · grade comparison
Nickel Alloy CW-12MW and N-12M-1 are both nickel alloy grades. N-12M-1 is the stronger of the two: yield strength 370 MPa (53.7 ksi) against 350 MPa (50.8 ksi) for CW-12MW, about 6% more; tensile strength follows at 585 MPa (84.8 ksi) vs 550 MPa (79.8 ksi). CW-12MW is harder — 15 HRC against 14 HRC for N-12M-1 — which matters for wear surfaces and threads. CW-12MW is lighter (8.94 g/cm³ vs 9.24 g/cm³ for N-12M-1) and N-12M-1 is stiffer (217 GPa vs 205 GPa). On the shop floor, CW-12MW welds better (good vs fair).
CW-12MWChoose it when surface hardness matters, or when weight is the constraint.
N-12M-1Choose it when strength drives the design.
CW-12MW vs N-12M-1: 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)
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Rockwell B
Hardness, Rockwell C
Compressive Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Same in both: Poisson's Ratio 0.31 · Elongation at Break 10% · Reduction in Area 12% · Hardness, Brinell 200 HB
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
Max Service Temperature (continuous)
Min Service Temperature
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
Weldability
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 12% · Formability (cold) 15 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 300 L/kg35.9 gal/lb · 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 | N-12M-1 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
CW-12MW vs N-12M-1 — frequently asked
Is N-12M-1 stronger than CW-12MW?
Yes. N-12M-1 has a typical yield strength of 370 MPa (53.7 ksi) against 350 MPa (50.8 ksi) for CW-12MW — about 6% more. Tensile strength is 585 MPa (84.8 ksi) vs 550 MPa (79.8 ksi).
Which is cheaper, CW-12MW or N-12M-1?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, CW-12MW or N-12M-1?
CW-12MW. Its weldability rates good (55/100) against fair (35/100) for N-12M-1.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CW-12MW and N-12M-1 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.