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EN-MC21220 Magnesium vs. C55280 Copper

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C55280 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, 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 EN-MC21220 magnesium and the bottom bar is C55280 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 17
40
Tensile Strength: Ultimate (UTS), MPa 210
180

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 600
790
Melting Onset (Solidus), °C 540
640
Specific Heat Capacity, J/kg-K 1000
410
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 23
4.2
Embodied Energy, MJ/kg 160
67

Common Calculations

Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
5.9
Strength to Weight: Bending, points 46
8.3
Thermal Shock Resistance, points 12
7.4

Alloy Composition

Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
90.5 to 91.4
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
6.8 to 7.2
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
1.8 to 2.2
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.15