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Zamak 7 vs. C53400 Bronze

Zamak 7 belongs to the zinc alloys classification, while C53400 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 C53400 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
42
Tensile Strength: Ultimate (UTS), MPa 280
330 to 720

Thermal Properties

Latent Heat of Fusion, J/g 120
200
Maximum Temperature: Mechanical, °C 95
180
Melting Completion (Liquidus), °C 390
1050
Melting Onset (Solidus), °C 380
950
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 110
69
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
15
Electrical Conductivity: Equal Weight (Specific), % IACS 38
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
32
Density, g/cm3 6.4
8.9
Embodied Carbon, kg CO2/kg material 3.0
3.0
Embodied Energy, MJ/kg 57
49
Embodied Water, L/kg 380
350

Common Calculations

Stiffness to Weight: Axial, points 7.5
7.0
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 12
10 to 22
Strength to Weight: Bending, points 15
12 to 20
Thermal Diffusivity, mm2/s 43
21
Thermal Shock Resistance, points 8.6
12 to 26

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
91.8 to 95.7
Iron (Fe), % 0 to 0.075
0 to 0.1
Lead (Pb), % 0 to 0.0030
0.8 to 1.2
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
3.5 to 5.8
Zinc (Zn), % 95.3 to 96.5
0 to 0.3
Residuals, % 0
0 to 0.5