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AZ91D Magnesium vs. Solder Alloy 115

AZ91D magnesium belongs to the magnesium alloys classification, while solder alloy 115 belongs to the otherwise unclassified metals. There are 25 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 AZ91D magnesium and the bottom bar is solder alloy 115.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 80
12
Elastic (Young's, Tensile) Modulus, GPa 46
28
Elongation at Break, % 2.3 to 4.5
22
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 18
10
Tensile Strength: Ultimate (UTS), MPa 160 to 220
36

Thermal Properties

Latent Heat of Fusion, J/g 350
36
Melting Completion (Liquidus), °C 600
250
Melting Onset (Solidus), °C 490
180
Specific Heat Capacity, J/kg-K 990
160
Thermal Conductivity, W/m-K 78
43
Thermal Expansion, µm/m-K 27
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 58
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
95
Density, g/cm3 1.7
9.9
Embodied Carbon, kg CO2/kg material 22
7.8
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
730

Common Calculations

Stiffness to Weight: Axial, points 15
1.6
Stiffness to Weight: Bending, points 69
10
Strength to Weight: Axial, points 26 to 34
1.0
Strength to Weight: Bending, points 38 to 46
2.4
Thermal Diffusivity, mm2/s 45
27
Thermal Shock Resistance, points 9.5 to 13
3.4

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
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 0.030
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.020
Lead (Pb), % 0
63.4 to 65.5
Magnesium (Mg), % 88.7 to 91.2
0
Manganese (Mn), % 0.15 to 0.5
0
Nickel (Ni), % 0 to 0.0020
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
34.5 to 35.5
Zinc (Zn), % 0.35 to 1.0
0 to 0.0010