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Nickel Alloy CW2M vs CZ-100

Nickel Alloy · grade comparison

Nickel Alloy CW2M and CZ-100 are both nickel alloy grades. CW2M is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 160 MPa (23.2 ksi) for CZ-100, about 88% more; tensile strength follows at 540 MPa (78.3 ksi) vs 380 MPa (55.1 ksi). CW2M is the more ductile: elongation 45% versus 25% for CZ-100, and CW2M is harder (190 HB vs 110 HB). CW2M is stiffer (202 GPa vs 180 GPa) and CW2M runs hotter in service (650°C vs 480°C continuous). On the shop floor, CZ-100 machines more easily (fair vs poor) and CW2M welds better (very good vs good).

CW2MChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

CZ-100Choose it when the part is machined in volume.

CW2M vs CZ-100: properties

CW2MCZ-100

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

202 GPa29.3 Msi
180 GPa26.1 Msi

Shear Modulus

77 GPa11.2 Msi
70 GPa10.2 Msi

Bulk Modulus

178 GPa25.8 Msi
170 GPa24.7 Msi

Tensile Strength (Ultimate)

540 MPa78.3 ksi
380 MPa55.1 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
160 MPa23.2 ksi

Elongation at Break

45%
25%

Reduction in Area

40%
30%

Shear Strength

380 MPa55.1 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
140 MPa20.3 ksi

Charpy V-Notch Impact (RT)

150 J111 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

190 HB
110 HB

Hardness, Rockwell B

88 HRB
62 HRB

Compressive Strength

—
165 MPa23.9 ksi

Hardness, Vickers

—
115 HV

Same in both: Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,325°C2,417 °F
1,315°C2,399 °F

Liquidus Temperature

1,370°C2,498 °F
1,400°C2,552 °F

Thermal

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

Thermal Conductivity

10 W/m·K5.8 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Specific Heat Capacity

425 J/kg·K0.1 BTU/lb·°F
456 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.2 µm/m·K6.2 µin/in·°F
13.3 µm/m·K7.4 µin/in·°F

Max Service Temperature (continuous)

650°C1,202 °F
480°C896 °F

Latent Heat of Fusion

—
297 J/g128 BTU/lb

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.4 % IACS
12 % IACS

Electrical Resistivity

1.25×10⁻⁶ Ω·m49.2 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)

-0.08 V
-0.2 V

Corrosion Resistance

92 / 100
78 / 100

Manufacturability

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

Machinability

20 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

12%
30%

Weldability

75 / 100
60 / 100

Castability

60 / 100
65 / 100

Brazeability / Solderability

55 / 100
65 / 100

Same in both: Formability (cold) 25 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

175 MJ/kg75,237 BTU/lb
165 MJ/kg70,937 BTU/lb

Embodied Carbon (primary production)

14 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

250 L/kg30 gal/lb
200 L/kg24 gal/lb

Typical Recycled Content

45%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

63 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

23.5 MN·m/kg
20.3 MN·m/kg

Modulus of Resilience

223 kJ/m³
71 kJ/m³

Thermal Diffusivity

2.7 mm²/s
12.4 mm²/s

Thermal Shock Resistance Index

2
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-100CW2M

Manufacturing and finishing

CapabilityCW2MCZ-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.

CW2M vs CZ-100 — frequently asked

Is CW2M stronger than CZ-100?

Yes. CW2M has a typical yield strength of 300 MPa (43.5 ksi) against 160 MPa (23.2 ksi) for CZ-100 — about 88% more. Tensile strength is 540 MPa (78.3 ksi) vs 380 MPa (55.1 ksi).

Which is cheaper, CW2M 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, CW2M or CZ-100?

CZ-100. Its machinability rates fair (35/100) against poor (20/100) for CW2M; for welding the order is CW2M first (very good, 75/100) then CZ-100 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CW2M 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.