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AZ91B Magnesium vs. Solder Alloy 301

AZ91B magnesium belongs to the magnesium alloys classification, while solder alloy 301 belongs to the otherwise unclassified metals. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 AZ91B magnesium and the bottom bar is solder alloy 301.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
23
Elastic (Young's, Tensile) Modulus, GPa 46
40
Elongation at Break, % 5.0
51
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
15
Tensile Strength: Ultimate (UTS), MPa 240
55
Tensile Strength: Yield (Proof), MPa 160
49

Thermal Properties

Latent Heat of Fusion, J/g 360
55
Melting Completion (Liquidus), °C 600
140
Melting Onset (Solidus), °C 470
140
Specific Heat Capacity, J/kg-K 990
160
Thermal Conductivity, W/m-K 73
19
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 58
4.9

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.7
Embodied Carbon, kg CO2/kg material 22
13
Embodied Energy, MJ/kg 160
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
27
Resilience: Unit (Modulus of Resilience), kJ/m3 280
30
Stiffness to Weight: Axial, points 15
2.5
Stiffness to Weight: Bending, points 69
13
Strength to Weight: Axial, points 38
1.8
Strength to Weight: Bending, points 49
3.7
Thermal Diffusivity, mm2/s 42
13
Thermal Shock Resistance, points 14
7.2

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
56.5 to 59
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.35
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 87.9 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
41 to 43
Zinc (Zn), % 0.35 to 1.0
0 to 0.0010