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Zamak 3 vs. SAE-AISI M7 Steel

Zamak 3 belongs to the zinc alloys classification, while SAE-AISI M7 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 M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
200
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
77
Tensile Strength: Ultimate (UTS), MPa 280
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 120
270
Melting Completion (Liquidus), °C 390
1560
Melting Onset (Solidus), °C 380
1510
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 110
28
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 6.4
8.1
Embodied Carbon, kg CO2/kg material 3.0
8.9
Embodied Energy, MJ/kg 57
130
Embodied Water, L/kg 380
100

Common Calculations

Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
26 to 76
Strength to Weight: Bending, points 15
23 to 47
Thermal Diffusivity, mm2/s 43
7.8
Thermal Shock Resistance, points 8.6
24 to 69

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.1
79.8 to 83.8
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0 to 0.020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0.2 to 0.55
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3
Zinc (Zn), % 95.3 to 96.5
0