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EN-MC65220 Magnesium vs. C18700 Copper

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C18700 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
9.0 to 9.6
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 150
170 to 190
Tensile Strength: Ultimate (UTS), MPa 270
290 to 330
Tensile Strength: Yield (Proof), MPa 200
230 to 250

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
950
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 110
380
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
98
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 80
30
Density, g/cm3 1.9
9.0
Embodied Carbon, kg CO2/kg material 27
2.6
Embodied Energy, MJ/kg 210
41

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 450
240 to 280
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 40
9.0 to 10
Strength to Weight: Bending, points 49
11 to 12
Thermal Diffusivity, mm2/s 61
110
Thermal Shock Resistance, points 17
10 to 12

Alloy Composition


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Copper (Cu), % 0.050 to 0.1
98 to 99.2
Iron (Fe), % 0 to 0.010
0
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 93.8 to 96.8
0
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
Residuals, % 0 to 0.010
0 to 0.5