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AM60B Magnesium vs. ZA-12

AM60B magnesium belongs to the magnesium alloys classification, while ZA-12 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 AM60B magnesium and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 45
83
Elongation at Break, % 11
1.6 to 5.3
Fatigue Strength, MPa 96
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 17
33
Shear Strength, MPa 140
240 to 300
Tensile Strength: Ultimate (UTS), MPa 230
260 to 400
Tensile Strength: Yield (Proof), MPa 130
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 350
120
Maximum Temperature: Mechanical, °C 120
100
Melting Completion (Liquidus), °C 620
430
Melting Onset (Solidus), °C 540
380
Specific Heat Capacity, J/kg-K 1000
450
Thermal Conductivity, W/m-K 61
120
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
28
Electrical Conductivity: Equal Weight (Specific), % IACS 72
42

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
6.0
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
64
Embodied Water, L/kg 990
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 190
260 to 620
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 38
12 to 19
Strength to Weight: Bending, points 50
15 to 20
Thermal Diffusivity, mm2/s 37
43
Thermal Shock Resistance, points 14
9.4 to 14

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Copper (Cu), % 0 to 0.010
0.5 to 1.2
Iron (Fe), % 0 to 0.0050
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 92.6 to 94.3
0.015 to 0.030
Manganese (Mn), % 0.24 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.060
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0 to 0.22
87.1 to 89