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Zamak 7 vs. CC331G Bronze

Zamak 7 belongs to the zinc alloys classification, while CC331G bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is CC331G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140
Elastic (Young's, Tensile) Modulus, GPa 86
110
Elongation at Break, % 13
20
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
43
Tensile Strength: Ultimate (UTS), MPa 280
620
Tensile Strength: Yield (Proof), MPa 250
240

Thermal Properties

Latent Heat of Fusion, J/g 120
230
Maximum Temperature: Mechanical, °C 95
220
Melting Completion (Liquidus), °C 390
1060
Melting Onset (Solidus), °C 380
1000
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 110
61
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
13
Electrical Conductivity: Equal Weight (Specific), % IACS 38
14

Otherwise Unclassified Properties

Base Metal Price, % relative 11
28
Density, g/cm3 6.4
8.3
Embodied Carbon, kg CO2/kg material 3.0
3.2
Embodied Energy, MJ/kg 57
53
Embodied Water, L/kg 380
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
97
Resilience: Unit (Modulus of Resilience), kJ/m3 370
250
Stiffness to Weight: Axial, points 7.5
7.6
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 12
21
Strength to Weight: Bending, points 15
19
Thermal Diffusivity, mm2/s 43
17
Thermal Shock Resistance, points 8.6
22

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
8.5 to 10.5
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
83 to 86.5
Iron (Fe), % 0 to 0.075
1.5 to 3.5
Lead (Pb), % 0 to 0.0030
0 to 0.1
Magnesium (Mg), % 0.0050 to 0.020
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0.0050 to 0.020
0 to 1.5
Silicon (Si), % 0
0 to 0.2
Tin (Sn), % 0 to 0.0010
0 to 0.2
Zinc (Zn), % 95.3 to 96.5
0 to 0.5