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SAE-AISI M7 Steel vs. Zamak 2

SAE-AISI M7 steel belongs to the iron alloys classification, while Zamak 2 belongs to the zinc alloys. There are 21 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M7 steel and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 760 to 2210
360

Thermal Properties

Latent Heat of Fusion, J/g 270
130
Melting Completion (Liquidus), °C 1560
390
Melting Onset (Solidus), °C 1510
380
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 28
110
Thermal Expansion, µm/m-K 12
28

Otherwise Unclassified Properties

Base Metal Price, % relative 18
12
Density, g/cm3 8.1
6.5
Embodied Carbon, kg CO2/kg material 8.9
3.0
Embodied Energy, MJ/kg 130
57
Embodied Water, L/kg 100
380

Common Calculations

Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26 to 76
15
Strength to Weight: Bending, points 23 to 47
17
Thermal Diffusivity, mm2/s 7.8
41
Thermal Shock Resistance, points 24 to 69
11

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 3.5 to 4.0
0
Copper (Cu), % 0 to 0.25
2.5 to 3.3
Iron (Fe), % 79.8 to 83.8
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0 to 0.020
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.55
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.8 to 2.3
0
Zinc (Zn), % 0
92.2 to 94