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Nickel Alloy CZ-100 vs G-NiCr15

Nickel Alloy · grade comparison

Nickel Alloy CZ-100 and G-NiCr15 are both nickel alloy grades. G-NiCr15 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 160 MPa (23.2 ksi) for CZ-100, about 56% more; tensile strength follows at 480 MPa (69.6 ksi) vs 380 MPa (55.1 ksi). In exchange, CZ-100 is the more ductile: elongation 25% versus 22% for G-NiCr15, and G-NiCr15 is harder (150 HB vs 110 HB). G-NiCr15 is lighter (8.4 g/cm³ vs 8.85 g/cm³ for CZ-100) and G-NiCr15 is stiffer (195 GPa vs 180 GPa). On the shop floor, CZ-100 machines more easily (fair vs poor).

CZ-100Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

G-NiCr15Choose it when strength drives the design, or when weight is the constraint.

CZ-100 vs G-NiCr15: properties

CZ-100G-NiCr15

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

180 GPa26.1 Msi
195 GPa28.3 Msi

Shear Modulus

70 GPa10.2 Msi
75 GPa10.9 Msi

Bulk Modulus

170 GPa24.7 Msi
165 GPa23.9 Msi

Tensile Strength (Ultimate)

380 MPa55.1 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

160 MPa23.2 ksi
250 MPa36.3 ksi

Elongation at Break

25%
22%

Reduction in Area

30%
25%

Compressive Strength

165 MPa23.9 ksi
—

Shear Strength

250 MPa36.3 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

140 MPa20.3 ksi
190 MPa27.6 ksi

Charpy V-Notch Impact (RT)

45 J33.2 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

110 HB
150 HB

Hardness, Rockwell B

62 HRB
80 HRB

Hardness, Vickers

115 HV
158 HV

Same in both: Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

8.85 g/cm³0.32 lb/in³
8.4 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,315°C2,399 °F
1,340°C2,444 °F

Same in both: Liquidus Temperature 1,400°C2,552 °F

Thermal

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

Thermal Conductivity

50 W/m·K28.9 BTU/hr·ft·°F
14 W/m·K8.1 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

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

Max Service Temperature (continuous)

480°C896 °F
1,050°C1,922 °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

12 % IACS
1.6 % IACS

Electrical Resistivity

1.4×10⁻⁷ Ω·m5.51 µΩ·in
1.08×10⁻⁶ Ω·m42.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.17 V

Corrosion Resistance

78 / 100
76 / 100

Manufacturability

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

Machinability

35 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
15%

Formability (cold)

25 / 100
15 / 100

Castability

65 / 100
68 / 100

Brazeability / Solderability

65 / 100
55 / 100

Polishability

70 / 100
55 / 100

Same in both: Weldability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

165 MJ/kg70,937 BTU/lb
155 MJ/kg66,638 BTU/lb

Embodied Water

200 L/kg24 gal/lb
330 L/kg39.5 gal/lb

Typical Recycled Content

40%
45%

Same in both: Embodied Carbon (primary production) 13 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

43 kN·m/kg
57 kN·m/kg

Specific Stiffness (E / density)

20.3 MN·m/kg
23.2 MN·m/kg

Modulus of Resilience

71 kJ/m³
160 kJ/m³

Thermal Diffusivity

12.4 mm²/s
3.6 mm²/s

Thermal Shock Resistance Index

8
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 scaleCZ-100G-NiCr15

Manufacturing and finishing

CapabilityCZ-100G-NiCr15
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

CZ-100 vs G-NiCr15 — frequently asked

Is G-NiCr15 stronger than CZ-100?

Yes. G-NiCr15 has a typical yield strength of 250 MPa (36.3 ksi) against 160 MPa (23.2 ksi) for CZ-100 — about 56% more. Tensile strength is 480 MPa (69.6 ksi) vs 380 MPa (55.1 ksi).

Which is cheaper, CZ-100 or G-NiCr15?

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, CZ-100 or G-NiCr15?

CZ-100. Its machinability rates fair (35/100) against poor (25/100) for G-NiCr15.

Ready to make it?

Upload a CAD file and FabDigit prices the part in CZ-100 and G-NiCr15 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.