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C70250 Copper vs. Z21721 Zinc

C70250 copper belongs to the copper alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C70250 copper and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
87
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 44
35
Tensile Strength: Ultimate (UTS), MPa 520 to 740
150

Thermal Properties

Latent Heat of Fusion, J/g 220
110
Maximum Temperature: Mechanical, °C 210
90
Melting Completion (Liquidus), °C 1100
410
Melting Onset (Solidus), °C 1080
390
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36 to 50
27
Electrical Conductivity: Equal Weight (Specific), % IACS 37 to 51
37

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.9
6.6
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 45
53
Embodied Water, L/kg 310
340

Common Calculations

Stiffness to Weight: Axial, points 7.4
7.3
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 16 to 23
6.4
Strength to Weight: Bending, points 16 to 21
9.6
Thermal Diffusivity, mm2/s 49
44
Thermal Shock Resistance, points 18 to 26
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 92.7 to 97.5
0 to 0.0050
Iron (Fe), % 0
0 to 0.010
Lead (Pb), % 0 to 0.050
0 to 1.0
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 2.2 to 4.2
0
Silicon (Si), % 0.25 to 1.2
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 1.0
98.9 to 100
Residuals, % 0 to 0.5
0