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EN-MC65120 Magnesium vs. C14700 Copper

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C14700 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 C14700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 3.1
9.1 to 35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 92
160 to 190
Tensile Strength: Ultimate (UTS), MPa 160
240 to 320
Tensile Strength: Yield (Proof), MPa 110
85 to 250

Thermal Properties

Latent Heat of Fusion, J/g 330
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 590
1080
Melting Onset (Solidus), °C 520
1070
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 100
370
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
95
Electrical Conductivity: Equal Weight (Specific), % IACS 120
96

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
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
25 to 65
Resilience: Unit (Modulus of Resilience), kJ/m3 140
31 to 280
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
7.3 to 10
Strength to Weight: Bending, points 34
9.5 to 12
Thermal Diffusivity, mm2/s 56
110
Thermal Shock Resistance, points 9.8
8.4 to 12

Alloy Composition


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Copper (Cu), % 0 to 0.030
99.395 to 99.798
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
Phosphorus (P), % 0
0.0020 to 0.0050
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0
0.2 to 0.5
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 to 0.1