MakeItFrom.com
Menu (ESC)

AZ81A Magnesium vs. Zamak 2

AZ81A magnesium belongs to the magnesium alloys classification, while Zamak 2 belongs to the zinc alloys. There are 33 material properties with values for both materials. Properties with values for just one material (2, 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 AZ81A magnesium and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
100
Compressive (Crushing) Strength, MPa 310 to 370
640
Elastic (Young's, Tensile) Modulus, GPa 46
87
Elongation at Break, % 3.0 to 8.8
6.0
Fatigue Strength, MPa 78 to 80
59
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 18
33
Shear Strength, MPa 91 to 130
320
Tensile Strength: Ultimate (UTS), MPa 160 to 240
360
Tensile Strength: Yield (Proof), MPa 84
270

Thermal Properties

Latent Heat of Fusion, J/g 350
130
Maximum Temperature: Mechanical, °C 130
95
Melting Completion (Liquidus), °C 600
390
Melting Onset (Solidus), °C 500
380
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 990
410
Thermal Conductivity, W/m-K 84
110
Thermal Expansion, µm/m-K 27
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
25
Electrical Conductivity: Equal Weight (Specific), % IACS 65
35

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 1.7
6.5
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 990
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 17
20
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 78
420
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 70
23
Strength to Weight: Axial, points 26 to 39
15
Strength to Weight: Bending, points 38 to 50
17
Thermal Diffusivity, mm2/s 50
41
Thermal Shock Resistance, points 9.1 to 14
11

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 7.0 to 8.1
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.1
2.5 to 3.3
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 89.8 to 92.5
0.020 to 0.060
Manganese (Mn), % 0.13 to 0.35
0
Nickel (Ni), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0.4 to 1.0
92.2 to 94
Residuals, % 0 to 0.3
0