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AM50A Magnesium vs. C86400 Bronze

AM50A magnesium belongs to the magnesium alloys classification, while C86400 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 AM50A magnesium and the bottom bar is C86400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 11
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 210
470
Tensile Strength: Yield (Proof), MPa 120
150

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 620
880
Melting Onset (Solidus), °C 570
860
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 65
88
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
19
Electrical Conductivity: Equal Weight (Specific), % IACS 88
22

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
63
Resilience: Unit (Modulus of Resilience), kJ/m3 150
110
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 35
16
Strength to Weight: Bending, points 47
17
Thermal Diffusivity, mm2/s 39
29
Thermal Shock Resistance, points 13
16

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
0.5 to 1.5
Copper (Cu), % 0 to 0.010
56 to 62
Iron (Fe), % 0 to 0.0040
0.4 to 2.0
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0.1 to 1.0
Nickel (Ni), % 0 to 0.0020
0 to 1.0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0 to 0.22
34 to 42
Residuals, % 0
0 to 1.0