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ISO-WD43150 Magnesium vs. C64700 Bronze

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C64700 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C64700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 2.8
9.0
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Shear Strength, MPa 140
390
Tensile Strength: Ultimate (UTS), MPa 250
660
Tensile Strength: Yield (Proof), MPa 150
560

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 95
200
Melting Completion (Liquidus), °C 610
1090
Melting Onset (Solidus), °C 590
1030
Specific Heat Capacity, J/kg-K 990
390
Thermal Conductivity, W/m-K 140
210
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
38
Electrical Conductivity: Equal Weight (Specific), % IACS 170
38

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 970
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
57
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1370
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 41
21
Strength to Weight: Bending, points 52
19
Thermal Diffusivity, mm2/s 81
59
Thermal Shock Resistance, points 14
24

Alloy Composition


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Copper (Cu), % 0 to 0.050
95.8 to 98
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
1.6 to 2.2
Silicon (Si), % 0 to 0.1
0.4 to 0.8
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0 to 0.3
0 to 0.5