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Zamak 7 vs. C90800 Bronze

Zamak 7 belongs to the zinc alloys classification, while C90800 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 C90800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
90
Elastic (Young's, Tensile) Modulus, GPa 86
110
Elongation at Break, % 13
13
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
40
Tensile Strength: Ultimate (UTS), MPa 280
330
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 120
190
Maximum Temperature: Mechanical, °C 95
170
Melting Completion (Liquidus), °C 390
990
Melting Onset (Solidus), °C 380
870
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 110
68
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
36
Density, g/cm3 6.4
8.7
Embodied Carbon, kg CO2/kg material 3.0
3.8
Embodied Energy, MJ/kg 57
62
Embodied Water, L/kg 380
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
35
Resilience: Unit (Modulus of Resilience), kJ/m3 370
140
Stiffness to Weight: Axial, points 7.5
6.9
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 12
11
Strength to Weight: Bending, points 15
12
Thermal Diffusivity, mm2/s 43
21
Thermal Shock Resistance, points 8.6
12

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
85.3 to 89
Iron (Fe), % 0 to 0.075
0 to 0.15
Lead (Pb), % 0 to 0.0030
0 to 0.25
Magnesium (Mg), % 0.0050 to 0.020
0
Nickel (Ni), % 0.0050 to 0.020
0 to 0.5
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.0010
11 to 13
Zinc (Zn), % 95.3 to 96.5
0 to 0.25