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Zamak 5 vs. ZE41A Magnesium

Zamak 5 belongs to the zinc alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 33 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 Zamak 5 and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
63
Compressive (Crushing) Strength, MPa 600
350
Elastic (Young's, Tensile) Modulus, GPa 87
45
Elongation at Break, % 6.3
3.3
Fatigue Strength, MPa 56
98
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
18
Shear Strength, MPa 260
150
Tensile Strength: Ultimate (UTS), MPa 330
210
Tensile Strength: Yield (Proof), MPa 240
140

Thermal Properties

Latent Heat of Fusion, J/g 120
330
Maximum Temperature: Mechanical, °C 95
150
Melting Completion (Liquidus), °C 390
640
Melting Onset (Solidus), °C 380
540
Solidification (Pattern Maker's) Shrinkage, % 1.2
1.3
Specific Heat Capacity, J/kg-K 410
970
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 27
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
27
Electrical Conductivity: Equal Weight (Specific), % IACS 37
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 6.4
1.9
Embodied Carbon, kg CO2/kg material 3.0
24
Embodied Energy, MJ/kg 57
170
Embodied Water, L/kg 380
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 330
220
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
63
Strength to Weight: Axial, points 14
31
Strength to Weight: Bending, points 16
41
Thermal Diffusivity, mm2/s 42
59
Thermal Shock Resistance, points 9.9
12

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
0 to 0.1
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.030
0
Tin (Sn), % 0 to 0.0030
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 94.3 to 95.7
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3