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Nickel Alloy CY-40 vs CZ-100

Nickel Alloy · grade comparison

Nickel Alloy CY-40 and CZ-100 are both nickel alloy grades. CY-40 is the stronger of the two: yield strength 245 MPa (35.5 ksi) against 160 MPa (23.2 ksi) for CZ-100, about 53% more; tensile strength follows at 520 MPa (75.4 ksi) vs 380 MPa (55.1 ksi). CY-40 is the more ductile: elongation 38% versus 25% for CZ-100, and CY-40 is harder (145 HB vs 110 HB). CY-40 is lighter (8.45 g/cm³ vs 8.85 g/cm³ for CZ-100) and CY-40 is stiffer (200 GPa vs 180 GPa).

CY-40Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CY-40 vs CZ-100: properties

CY-40CZ-100

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
180 GPa26.1 Msi

Shear Modulus

76 GPa11 Msi
70 GPa10.2 Msi

Bulk Modulus

175 GPa25.4 Msi
170 GPa24.7 Msi

Tensile Strength (Ultimate)

520 MPa75.4 ksi
380 MPa55.1 ksi

Yield Strength (0.2% offset)

245 MPa35.5 ksi
160 MPa23.2 ksi

Elongation at Break

38%
25%

Reduction in Area

40%
30%

Compressive Strength

250 MPa36.3 ksi
165 MPa23.9 ksi

Shear Strength

350 MPa50.8 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

215 MPa31.2 ksi
140 MPa20.3 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
—

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

145 HB
110 HB

Hardness, Rockwell B

78 HRB
62 HRB

Hardness, Vickers

152 HV
115 HV

Same in both: Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

8.45 g/cm³0.31 lb/in³
8.85 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,354°C2,469 °F
1,315°C2,399 °F

Liquidus Temperature

1,413°C2,575 °F
1,400°C2,552 °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
50 W/m·K28.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

290 J/g125 BTU/lb
297 J/g128 BTU/lb

Max Service Temperature (continuous)

1,000°C1,832 °F
480°C896 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 13.3 µm/m·K7.4 µin/in·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
12 % IACS

Electrical Resistivity

1.03×10⁻⁶ Ω·m40.6 µΩ·in
1.4×10⁻⁷ Ω·m5.51 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.18 V
-0.2 V

Corrosion Resistance

76 / 100
78 / 100

Manufacturability

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

Machinability

28 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
30%

Formability (cold)

20 / 100
25 / 100

Castability

58 / 100
65 / 100

Brazeability / Solderability

55 / 100
65 / 100

Polishability

60 / 100
70 / 100

Same in both: Weldability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

150 MJ/kg64,488 BTU/lb
165 MJ/kg70,937 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
200 L/kg24 gal/lb

Typical Recycled Content

45%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
20.3 MN·m/kg

Modulus of Resilience

150 kJ/m³
71 kJ/m³

Thermal Diffusivity

3.9 mm²/s
12.4 mm²/s

Thermal Shock Resistance Index

3
8

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 scaleCZ-100CY-40

Manufacturing and finishing

CapabilityCY-40CZ-100
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 CZ-100 — frequently asked

Is CY-40 stronger than CZ-100?

Yes. CY-40 has a typical yield strength of 245 MPa (35.5 ksi) against 160 MPa (23.2 ksi) for CZ-100 — about 53% more. Tensile strength is 520 MPa (75.4 ksi) vs 380 MPa (55.1 ksi).

Which is cheaper, CY-40 or CZ-100?

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 CZ-100?

CZ-100. Its machinability rates fair (35/100) against poor (28/100) for CY-40.

Ready to make it?

Upload a CAD file and FabDigit prices the part in CY-40 and CZ-100 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.