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EN-MC65220 Magnesium vs. C18100 Copper

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C18100 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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-MC65220 magnesium and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.2
8.3
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
47
Shear Strength, MPa 150
300
Tensile Strength: Ultimate (UTS), MPa 270
510
Tensile Strength: Yield (Proof), MPa 200
460

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 610
1080
Melting Onset (Solidus), °C 550
1020
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 110
320
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
80
Electrical Conductivity: Equal Weight (Specific), % IACS 120
81

Otherwise Unclassified Properties

Base Metal Price, % relative 80
31
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 210
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
40
Resilience: Unit (Modulus of Resilience), kJ/m3 450
900
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 40
16
Strength to Weight: Bending, points 49
16
Thermal Diffusivity, mm2/s 61
94
Thermal Shock Resistance, points 17
18

Alloy Composition


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Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 0.050 to 0.1
98.7 to 99.49
Iron (Fe), % 0 to 0.010
0
Magnesium (Mg), % 93.8 to 96.8
0.030 to 0.060
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0.080 to 0.2
Residuals, % 0 to 0.010
0 to 0.5