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Zamak 3 vs. SAE-AISI A7 Steel

Zamak 3 belongs to the zinc alloys classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
190
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
72
Tensile Strength: Ultimate (UTS), MPa 280
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 120
260
Melting Completion (Liquidus), °C 390
1470
Melting Onset (Solidus), °C 380
1430
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
37
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 6.4
7.7
Embodied Carbon, kg CO2/kg material 3.0
13
Embodied Energy, MJ/kg 57
200
Embodied Water, L/kg 380
100

Common Calculations

Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
29 to 77
Strength to Weight: Bending, points 15
25 to 48
Thermal Diffusivity, mm2/s 43
10
Thermal Shock Resistance, points 8.6
27 to 72

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
2.0 to 2.9
Chromium (Cr), % 0
5.0 to 5.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.1
81.4 to 87.7
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0 to 0.020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2
Zinc (Zn), % 95.3 to 96.5
0