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ISO-WD43150 Magnesium vs. C55281 Copper

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C55281 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, 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 C55281 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
40
Tensile Strength: Ultimate (UTS), MPa 250
190

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 95
200
Melting Completion (Liquidus), °C 610
810
Melting Onset (Solidus), °C 590
640
Specific Heat Capacity, J/kg-K 990
400
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.7
Embodied Carbon, kg CO2/kg material 24
7.0
Embodied Energy, MJ/kg 160
110

Common Calculations

Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 41
6.1
Strength to Weight: Bending, points 52
8.5
Thermal Shock Resistance, points 14
7.7

Alloy Composition


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Copper (Cu), % 0 to 0.050
88.5 to 89.4
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
5.8 to 6.2
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
4.8 to 5.2
Residuals, % 0 to 0.3
0 to 0.15