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EN-MC21220 Magnesium vs. C55180 Copper

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C55180 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C55180 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 210
200
Tensile Strength: Yield (Proof), MPa 120
100

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 600
920
Melting Onset (Solidus), °C 540
710
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 65
200
Thermal Expansion, µm/m-K 27
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.6
Embodied Carbon, kg CO2/kg material 23
2.5
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 990
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
34
Resilience: Unit (Modulus of Resilience), kJ/m3 160
48
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 34
6.4
Strength to Weight: Bending, points 46
8.8
Thermal Diffusivity, mm2/s 39
56
Thermal Shock Resistance, points 12
7.9

Alloy Composition

Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
94.7 to 95.2
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
4.8 to 5.2
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.15