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Zamak 3 vs. C86100 Bronze

Zamak 3 belongs to the zinc alloys classification, while C86100 bronze belongs to the copper alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is C86100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
110
Elongation at Break, % 11
20
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 33
43
Tensile Strength: Ultimate (UTS), MPa 280
660
Tensile Strength: Yield (Proof), MPa 210
350

Thermal Properties

Latent Heat of Fusion, J/g 120
200
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
940
Melting Onset (Solidus), °C 380
900
Specific Heat Capacity, J/kg-K 410
420
Thermal Conductivity, W/m-K 110
35
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 38
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 6.4
8.0
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 57
49
Embodied Water, L/kg 380
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
110
Resilience: Unit (Modulus of Resilience), kJ/m3 260
530
Stiffness to Weight: Axial, points 7.5
7.8
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 12
23
Strength to Weight: Bending, points 15
21
Thermal Diffusivity, mm2/s 43
10
Thermal Shock Resistance, points 8.6
21

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
4.5 to 5.5
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.25
66 to 68
Iron (Fe), % 0 to 0.1
2.0 to 4.0
Lead (Pb), % 0 to 0.0050
0 to 0.1
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0
Tin (Sn), % 0 to 0.0030
0 to 0.1
Zinc (Zn), % 95.3 to 96.5
17.3 to 25