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Nickel Alloy CY-40 vs DZ22

Nickel Alloy · grade comparison

Nickel Alloy CY-40 and DZ22 are both nickel alloy grades. DZ22 is the stronger of the two: yield strength 850 MPa (123 ksi) against 245 MPa (35.5 ksi) for CY-40, about 3.5 times as much; tensile strength follows at 980 MPa (142 ksi) vs 520 MPa (75.4 ksi). In exchange, CY-40 is the more ductile: elongation 38% versus 7% for DZ22, and DZ22 is harder (378 HB vs 145 HB). CY-40 is stiffer (200 GPa vs 130 GPa) and CY-40 conducts heat better (14.8 W/m·K vs 10 W/m·K). On the shop floor, CY-40 machines more easily (poor vs not recommended) and CY-40 welds better (good vs not recommended).

CY-40Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

DZ22Choose it when strength drives the design.

CY-40 vs DZ22: properties

CY-40DZ22

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
130 GPa18.9 Msi

Shear Modulus

76 GPa11 Msi
50 GPa7.3 Msi

Bulk Modulus

175 GPa25.4 Msi
—

Poisson's Ratio

0.31
0.38

Tensile Strength (Ultimate)

520 MPa75.4 ksi
980 MPa142 ksi

Yield Strength (0.2% offset)

245 MPa35.5 ksi
850 MPa123 ksi

Elongation at Break

38%
7%

Reduction in Area

40%
9%

Compressive Strength

250 MPa36.3 ksi
950 MPa138 ksi

Shear Strength

350 MPa50.8 ksi
640 MPa92.8 ksi

Fatigue Strength (Endurance Limit)

215 MPa31.2 ksi
350 MPa50.8 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
75 MPa·√m68.3 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
10 J7.4 ft·lbf

Hardness, Brinell

145 HB
378 HB

Hardness, Rockwell B

78 HRB
—

Hardness, Vickers

152 HV
400 HV

Hardness, Rockwell C

—
40 HRC

Physical

Density and transition temperatures.

Density

8.45 g/cm³0.31 lb/in³
8.6 g/cm³0.31 lb/in³

Melting Point (Solidus)

1,354°C2,469 °F
1,290°C2,354 °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
10 W/m·K5.8 BTU/hr·ft·°F

Specific Heat Capacity

444 J/kg·K0.11 BTU/lb·°F
420 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13.3 µm/m·K7.4 µin/in·°F
11.5 µm/m·K6.4 µin/in·°F

Latent Heat of Fusion

290 J/g125 BTU/lb
—

Min Service Temperature

-196°C-321 °F
-253°C-423 °F

Same in both: Max Service Temperature (continuous) 1,000°C1,832 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.7 % IACS
1.4 % IACS

Electrical Resistivity

1.03×10⁻⁶ Ω·m40.6 µΩ·in
1.25×10⁻⁶ Ω·m49.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.18 V
-0.15 V

Corrosion Resistance

76 / 100
62 / 100

Manufacturability

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

Machinability

28 / 100
8 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
5%

Weldability

60 / 100
12 / 100

Formability (cold)

20 / 100
3 / 100

Castability

58 / 100
55 / 100

Brazeability / Solderability

55 / 100
45 / 100

Same in both: Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

150 MJ/kg64,488 BTU/lb
250 MJ/kg107,481 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
17 kg CO₂/kg

Embodied Water

350 L/kg41.9 gal/lb
500 L/kg59.9 gal/lb

Typical Recycled Content

45%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
114 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
15.1 MN·m/kg

Modulus of Resilience

150 kJ/m³
2,779 kJ/m³

Thermal Diffusivity

3.9 mm²/s
2.8 mm²/s

Thermal Shock Resistance Index

3
7

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-40DZ22

Manufacturing and finishing

CapabilityCY-40DZ22
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 DZ22 — frequently asked

Is DZ22 stronger than CY-40?

Yes. DZ22 has a typical yield strength of 850 MPa (123 ksi) against 245 MPa (35.5 ksi) for CY-40 — about 3.5 times as much. Tensile strength is 980 MPa (142 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, CY-40 or DZ22?

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 DZ22?

CY-40. Its machinability rates poor (28/100) against not recommended (8/100) for DZ22; for welding the order is CY-40 first (good, 60/100) then DZ22 (not recommended, 12/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CY-40 and DZ22 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.