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EN-MC95310 Magnesium vs. Zamak 7

EN-MC95310 magnesium belongs to the magnesium alloys classification, while Zamak 7 belongs to the zinc alloys. There are 31 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 EN-MC95310 magnesium and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
80
Elastic (Young's, Tensile) Modulus, GPa 45
86
Elongation at Break, % 2.2
13
Fatigue Strength, MPa 110
47
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 17
33
Shear Strength, MPa 160
210
Tensile Strength: Ultimate (UTS), MPa 280
280
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 330
120
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 650
390
Melting Onset (Solidus), °C 540
380
Specific Heat Capacity, J/kg-K 960
410
Thermal Conductivity, W/m-K 51
110
Thermal Expansion, µm/m-K 25
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
27
Electrical Conductivity: Equal Weight (Specific), % IACS 50
38

Otherwise Unclassified Properties

Base Metal Price, % relative 34
11
Density, g/cm3 1.9
6.4
Embodied Carbon, kg CO2/kg material 29
3.0
Embodied Energy, MJ/kg 260
57
Embodied Water, L/kg 900
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
36
Resilience: Unit (Modulus of Resilience), kJ/m3 420
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 61
23
Strength to Weight: Axial, points 40
12
Strength to Weight: Bending, points 49
15
Thermal Diffusivity, mm2/s 28
43
Thermal Shock Resistance, points 18
8.6

Alloy Composition


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Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0.0050 to 0.020
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0.0050 to 0.020
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0010
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
95.3 to 96.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0