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AM50A Magnesium vs. C86100 Bronze

AM50A magnesium belongs to the magnesium alloys classification, while C86100 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 C86100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
20
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 210
660
Tensile Strength: Yield (Proof), MPa 120
350

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 620
940
Melting Onset (Solidus), °C 570
900
Specific Heat Capacity, J/kg-K 1000
420
Thermal Conductivity, W/m-K 65
35
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 88
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 990
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
530
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 35
23
Strength to Weight: Bending, points 47
21
Thermal Diffusivity, mm2/s 39
10
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
4.5 to 5.5
Copper (Cu), % 0 to 0.010
66 to 68
Iron (Fe), % 0 to 0.0040
2.0 to 4.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
2.5 to 5.0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.22
17.3 to 25