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C86300 Bronze vs. Zamak 2

C86300 bronze belongs to the copper alloys classification, while Zamak 2 belongs to the zinc alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 C86300 bronze and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
100
Compressive (Crushing) Strength, MPa 430
640
Elastic (Young's, Tensile) Modulus, GPa 110
87
Elongation at Break, % 14
6.0
Poisson's Ratio 0.32
0.26
Shear Modulus, GPa 42
33
Tensile Strength: Ultimate (UTS), MPa 850
360
Tensile Strength: Yield (Proof), MPa 480
270

Thermal Properties

Latent Heat of Fusion, J/g 200
130
Maximum Temperature: Mechanical, °C 160
95
Melting Completion (Liquidus), °C 920
390
Melting Onset (Solidus), °C 890
380
Specific Heat Capacity, J/kg-K 420
410
Thermal Conductivity, W/m-K 35
110
Thermal Expansion, µm/m-K 20
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
35

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 7.8
6.5
Embodied Carbon, kg CO2/kg material 3.0
3.0
Embodied Energy, MJ/kg 51
57
Embodied Water, L/kg 360
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
20
Resilience: Unit (Modulus of Resilience), kJ/m3 1030
420
Stiffness to Weight: Axial, points 7.8
7.5
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 30
15
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 11
41
Thermal Shock Resistance, points 28
11

Alloy Composition


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Aluminum (Al), % 5.0 to 7.5
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 60 to 66
2.5 to 3.3
Iron (Fe), % 2.0 to 4.0
0 to 0.1
Lead (Pb), % 0 to 0.2
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.020
Silicon (Si), % 0
0 to 0.030
Tin (Sn), % 0 to 0.2
0 to 0.0030
Zinc (Zn), % 22 to 28
92.2 to 94
Residuals, % 0 to 1.0
0