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Zamak 7 vs. C91100 Bronze

Zamak 7 belongs to the zinc alloys classification, while C91100 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 C91100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 410
140
Elastic (Young's, Tensile) Modulus, GPa 86
100
Elongation at Break, % 13
2.0
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
39
Tensile Strength: Ultimate (UTS), MPa 280
240
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 120
180
Maximum Temperature: Mechanical, °C 95
160
Melting Completion (Liquidus), °C 390
950
Melting Onset (Solidus), °C 380
820
Specific Heat Capacity, J/kg-K 410
360
Thermal Conductivity, W/m-K 110
63
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
38
Density, g/cm3 6.4
8.7
Embodied Carbon, kg CO2/kg material 3.0
4.2
Embodied Energy, MJ/kg 57
69
Embodied Water, L/kg 380
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 370
140
Stiffness to Weight: Axial, points 7.5
6.7
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 12
7.7
Strength to Weight: Bending, points 15
9.9
Thermal Diffusivity, mm2/s 43
20
Thermal Shock Resistance, points 8.6
9.1

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
82 to 85
Iron (Fe), % 0 to 0.075
0 to 0.25
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 1.0
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.0010
15 to 17
Zinc (Zn), % 95.3 to 96.5
0 to 0.25