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EV31A Magnesium vs. Zamak 3

EV31A magnesium belongs to the magnesium alloys classification, while Zamak 3 belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, 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 EV31A magnesium and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
83
Compressive (Crushing) Strength, MPa 360
410
Elastic (Young's, Tensile) Modulus, GPa 44
86
Elongation at Break, % 3.5
11
Fatigue Strength, MPa 120
48
Fracture Toughness, MPa-m1/2 15
12
Poisson's Ratio 0.27
0.25
Shear Modulus, GPa 17
33
Shear Strength, MPa 170
210
Tensile Strength: Ultimate (UTS), MPa 260
280
Tensile Strength: Yield (Proof), MPa 170
210

Thermal Properties

Maximum Temperature: Mechanical, °C 200
95
Melting Onset (Solidus), °C 590
380
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 86
110
Thermal Expansion, µm/m-K 27
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
27
Electrical Conductivity: Equal Weight (Specific), % IACS 90
38

Otherwise Unclassified Properties

Density, g/cm3 1.8
6.4

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
28
Resilience: Unit (Modulus of Resilience), kJ/m3 330
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 65
23
Strength to Weight: Axial, points 40
12
Strength to Weight: Bending, points 50
15
Thermal Diffusivity, mm2/s 47
43
Thermal Shock Resistance, points 16
8.6