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AZ91A Magnesium vs. Solder Alloy 134

AZ91A magnesium belongs to the magnesium alloys classification, while solder alloy 134 belongs to the otherwise unclassified metals. There are 24 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 AZ91A magnesium and the bottom bar is solder alloy 134.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
31
Elongation at Break, % 5.0
31
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 18
11
Tensile Strength: Ultimate (UTS), MPa 240
38

Thermal Properties

Latent Heat of Fusion, J/g 360
41
Melting Completion (Liquidus), °C 600
230
Melting Onset (Solidus), °C 470
190
Specific Heat Capacity, J/kg-K 990
170
Thermal Conductivity, W/m-K 73
45
Thermal Expansion, µm/m-K 26
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
10
Electrical Conductivity: Equal Weight (Specific), % IACS 52
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
100
Density, g/cm3 1.7
9.6
Embodied Carbon, kg CO2/kg material 22
8.5
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
820

Common Calculations

Stiffness to Weight: Axial, points 15
1.8
Stiffness to Weight: Bending, points 69
11
Strength to Weight: Axial, points 38
1.1
Strength to Weight: Bending, points 49
2.6
Thermal Diffusivity, mm2/s 42
28
Thermal Shock Resistance, points 14
3.4

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.0010
Antimony (Sb), % 0
2.0 to 2.4
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 0 to 0.1
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
56.5 to 58.5
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0
Nickel (Ni), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
39.5 to 40.5
Zinc (Zn), % 0.35 to 1.0
0 to 0.0010