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Zamak 7 vs. 850.0 Aluminum

Zamak 7 belongs to the zinc alloys classification, while 850.0 aluminum belongs to the aluminum alloys. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 7 and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
45
Elastic (Young's, Tensile) Modulus, GPa 86
69
Elongation at Break, % 13
7.9
Fatigue Strength, MPa 47
59
Poisson's Ratio 0.25
0.33
Shear Modulus, GPa 33
26
Shear Strength, MPa 210
100
Tensile Strength: Ultimate (UTS), MPa 280
140
Tensile Strength: Yield (Proof), MPa 250
76

Thermal Properties

Latent Heat of Fusion, J/g 120
380
Maximum Temperature: Mechanical, °C 95
190
Melting Completion (Liquidus), °C 390
650
Melting Onset (Solidus), °C 380
370
Solidification (Pattern Maker's) Shrinkage, % 1.2
1.3
Specific Heat Capacity, J/kg-K 410
850
Thermal Conductivity, W/m-K 110
180
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
47
Electrical Conductivity: Equal Weight (Specific), % IACS 38
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 6.4
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.5
Embodied Energy, MJ/kg 57
160
Embodied Water, L/kg 380
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 370
42
Stiffness to Weight: Axial, points 7.5
12
Stiffness to Weight: Bending, points 23
44
Strength to Weight: Axial, points 12
12
Strength to Weight: Bending, points 15
19
Thermal Diffusivity, mm2/s 43
69
Thermal Shock Resistance, points 8.6
6.1

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
88.3 to 93.1
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
0.7 to 1.3
Iron (Fe), % 0 to 0.075
0 to 0.7
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0.0050 to 0.020
0.7 to 1.3
Silicon (Si), % 0
0 to 0.7
Tin (Sn), % 0 to 0.0010
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 95.3 to 96.5
0
Residuals, % 0
0 to 0.3