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Zamak 7 vs. C52400 Bronze

Zamak 7 belongs to the zinc alloys classification, while C52400 bronze belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is C52400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
110
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
41
Tensile Strength: Ultimate (UTS), MPa 280
450 to 880

Thermal Properties

Latent Heat of Fusion, J/g 120
190
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
1000
Melting Onset (Solidus), °C 380
840
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 110
50
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
11
Electrical Conductivity: Equal Weight (Specific), % IACS 38
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
35
Density, g/cm3 6.4
8.8
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 57
58
Embodied Water, L/kg 380
390

Common Calculations

Stiffness to Weight: Axial, points 7.5
6.9
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 12
14 to 28
Strength to Weight: Bending, points 15
15 to 23
Thermal Diffusivity, mm2/s 43
15
Thermal Shock Resistance, points 8.6
17 to 32

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
87.8 to 91
Iron (Fe), % 0 to 0.075
0 to 0.1
Lead (Pb), % 0 to 0.0030
0 to 0.050
Magnesium (Mg), % 0.0050 to 0.020
0
Nickel (Ni), % 0.0050 to 0.020
0
Phosphorus (P), % 0
0.030 to 0.35
Tin (Sn), % 0 to 0.0010
9.0 to 11
Zinc (Zn), % 95.3 to 96.5
0 to 0.2
Residuals, % 0
0 to 0.5