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EN-MC65120 Magnesium vs. CC140C Copper

EN-MC65120 magnesium belongs to the magnesium alloys classification, while CC140C copper belongs to the copper alloys. There are 29 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 EN-MC65120 magnesium and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
110
Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 3.1
11
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Tensile Strength: Ultimate (UTS), MPa 160
340
Tensile Strength: Yield (Proof), MPa 110
230

Thermal Properties

Latent Heat of Fusion, J/g 330
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 590
1100
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 100
310
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
77
Electrical Conductivity: Equal Weight (Specific), % IACS 120
78

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 25
2.6
Embodied Energy, MJ/kg 190
41
Embodied Water, L/kg 930
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
34
Resilience: Unit (Modulus of Resilience), kJ/m3 140
220
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
10
Strength to Weight: Bending, points 34
12
Thermal Diffusivity, mm2/s 56
89
Thermal Shock Resistance, points 9.8
12

Alloy Composition


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Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 0 to 0.030
98.8 to 99.6
Iron (Fe), % 0 to 0.010
0
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0