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ISO-WD43150 Magnesium vs. C86300 Bronze

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C86300 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 ISO-WD43150 magnesium and the bottom bar is C86300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 2.8
14
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
42
Tensile Strength: Ultimate (UTS), MPa 250
850
Tensile Strength: Yield (Proof), MPa 150
480

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 95
160
Melting Completion (Liquidus), °C 610
920
Melting Onset (Solidus), °C 590
890
Specific Heat Capacity, J/kg-K 990
420
Thermal Conductivity, W/m-K 140
35
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 170
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 24
3.0
Embodied Energy, MJ/kg 160
51
Embodied Water, L/kg 970
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
100
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1030
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 41
30
Strength to Weight: Bending, points 52
25
Thermal Diffusivity, mm2/s 81
11
Thermal Shock Resistance, points 14
28

Alloy Composition


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Aluminum (Al), % 0
5.0 to 7.5
Copper (Cu), % 0 to 0.050
60 to 66
Iron (Fe), % 0
2.0 to 4.0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
2.5 to 5.0
Nickel (Ni), % 0 to 0.010
0 to 1.0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
22 to 28
Residuals, % 0 to 0.3
0 to 1.0