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EN-MC21210 Magnesium vs. C18700 Copper

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C18700 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-MC21210 magnesium and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 14
9.0 to 9.6
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 110
170 to 190
Tensile Strength: Ultimate (UTS), MPa 190
290 to 330
Tensile Strength: Yield (Proof), MPa 90
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 100
200
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 570
950
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
380
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
98
Electrical Conductivity: Equal Weight (Specific), % IACS 130
99

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 24
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 92
240 to 280
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 32
9.0 to 10
Strength to Weight: Bending, points 44
11 to 12
Thermal Diffusivity, mm2/s 76
110
Thermal Shock Resistance, points 11
10 to 12

Alloy Composition

Aluminum (Al), % 1.6 to 2.6
0
Copper (Cu), % 0 to 0.010
98 to 99.2
Iron (Fe), % 0 to 0.0050
0
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0 to 0.5