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Zamak 2 vs. 712.0 Aluminum

Zamak 2 belongs to the zinc alloys classification, while 712.0 aluminum belongs to the aluminum alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is Zamak 2 and the bottom bar is 712.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
75 to 90
Elastic (Young's, Tensile) Modulus, GPa 87
70
Elongation at Break, % 6.0
4.5 to 4.7
Fatigue Strength, MPa 59
140 to 180
Poisson's Ratio 0.26
0.32
Shear Modulus, GPa 33
27
Shear Strength, MPa 320
180
Tensile Strength: Ultimate (UTS), MPa 360
250 to 260
Tensile Strength: Yield (Proof), MPa 270
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 130
380
Maximum Temperature: Mechanical, °C 95
190
Melting Completion (Liquidus), °C 390
640
Melting Onset (Solidus), °C 380
610
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.6
Specific Heat Capacity, J/kg-K 410
870
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 28
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 35
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 6.5
3.0
Embodied Carbon, kg CO2/kg material 3.0
8.0
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 380
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
11
Resilience: Unit (Modulus of Resilience), kJ/m3 420
240 to 270
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
46
Strength to Weight: Axial, points 15
24 to 25
Strength to Weight: Bending, points 17
30 to 31
Thermal Diffusivity, mm2/s 41
62
Thermal Shock Resistance, points 11
11

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
90.7 to 94
Cadmium (Cd), % 0 to 0.0050
0
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 2.5 to 3.3
0 to 0.25
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0.5 to 0.65
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0 to 0.3
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0.15 to 0.25
Zinc (Zn), % 92.2 to 94
5.0 to 6.5
Residuals, % 0
0 to 0.2