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ISO-WD43150 Magnesium vs. C83800 Bronze

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C83800 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 C83800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 2.8
20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
39
Tensile Strength: Ultimate (UTS), MPa 250
230
Tensile Strength: Yield (Proof), MPa 150
110

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 95
160
Melting Completion (Liquidus), °C 610
1000
Melting Onset (Solidus), °C 590
840
Specific Heat Capacity, J/kg-K 990
370
Thermal Conductivity, W/m-K 140
72
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
15
Electrical Conductivity: Equal Weight (Specific), % IACS 170
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 24
2.9
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 970
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
39
Resilience: Unit (Modulus of Resilience), kJ/m3 250
53
Stiffness to Weight: Axial, points 15
6.6
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 41
7.4
Strength to Weight: Bending, points 52
9.6
Thermal Diffusivity, mm2/s 81
22
Thermal Shock Resistance, points 14
8.6

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.050
82 to 83.8
Iron (Fe), % 0
0 to 0.3
Lead (Pb), % 0
5.0 to 7.0
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
3.3 to 4.2
Zinc (Zn), % 0
5.0 to 8.0
Residuals, % 0 to 0.3
0 to 0.7