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Nickel Alloy CY-40 vs N-12M-1

Nickel Alloy · grade comparison

Nickel Alloy CY-40 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 245 MPa (35.5 ksi) for CY-40, about 51% more; tensile strength follows at 585 MPa (84.8 ksi) vs 520 MPa (75.4 ksi). In exchange, CY-40 is the more ductile: elongation 38% versus 10% for N-12M-1, and N-12M-1 is harder (200 HB vs 145 HB). CY-40 is lighter (8.45 g/cm³ vs 9.24 g/cm³ for N-12M-1) and N-12M-1 is stiffer (217 GPa vs 200 GPa). On the shop floor, CY-40 welds better (good vs fair).

CY-40Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

N-12M-1Choose it when strength drives the design.

CY-40 vs N-12M-1: properties

CY-40N-12M-1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
217 GPa31.5 Msi

Shear Modulus

76 GPa11 Msi
84 GPa12.2 Msi

Bulk Modulus

175 GPa25.4 Msi
181 GPa26.3 Msi

Tensile Strength (Ultimate)

520 MPa75.4 ksi
585 MPa84.8 ksi

Yield Strength (0.2% offset)

245 MPa35.5 ksi
370 MPa53.7 ksi

Elongation at Break

38%
10%

Reduction in Area

40%
12%

Compressive Strength

250 MPa36.3 ksi
400 MPa58 ksi

Shear Strength

350 MPa50.8 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

215 MPa31.2 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
30 J22.1 ft·lbf

Hardness, Brinell

145 HB
200 HB

Hardness, Rockwell B

78 HRB
93 HRB

Hardness, Vickers

152 HV
210 HV

Hardness, Rockwell C

—
14 HRC

Same in both: Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

8.45 g/cm³0.31 lb/in³
9.24 g/cm³0.33 lb/in³

Melting Point (Solidus)

1,354°C2,469 °F
1,320°C2,408 °F

Liquidus Temperature

1,413°C2,575 °F
1,350°C2,462 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

14.8 W/m·K8.6 BTU/hr·ft·°F
11.2 W/m·K6.5 BTU/hr·ft·°F

Specific Heat Capacity

444 J/kg·K0.11 BTU/lb·°F
377 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13.3 µm/m·K7.4 µin/in·°F
10.3 µm/m·K5.7 µin/in·°F

Latent Heat of Fusion

290 J/g125 BTU/lb
285 J/g123 BTU/lb

Max Service Temperature (continuous)

1,000°C1,832 °F
700°C1,292 °F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.3 % IACS

Electrical Resistivity

1.03×10⁻⁶ Ω·m40.6 µΩ·in
1.37×10⁻⁶ Ω·m53.9 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.18 V
-0.12 V

Corrosion Resistance

76 / 100
75 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

28 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
12%

Weldability

60 / 100
35 / 100

Formability (cold)

20 / 100
15 / 100

Castability

58 / 100
55 / 100

Brazeability / Solderability

55 / 100
40 / 100

Polishability

60 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

150 MJ/kg64,488 BTU/lb
155 MJ/kg66,638 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

45%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
63 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
23.5 MN·m/kg

Modulus of Resilience

150 kJ/m³
315 kJ/m³

Thermal Diffusivity

3.9 mm²/s
3.2 mm²/s

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.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleCY-40N-12M-1

Manufacturing and finishing

CapabilityCY-40N-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.

CY-40 vs N-12M-1 — frequently asked

Is N-12M-1 stronger than CY-40?

Yes. N-12M-1 has a typical yield strength of 370 MPa (53.7 ksi) against 245 MPa (35.5 ksi) for CY-40 — about 51% more. Tensile strength is 585 MPa (84.8 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, CY-40 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 is easier to machine, CY-40 or N-12M-1?

CY-40, by a small margin. Both rate poor for machinability — 28/100 against 20/100 for N-12M-1; for welding the order is CY-40 first (good, 60/100) then N-12M-1 (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CY-40 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.