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EN-MC65220 Magnesium vs. C82700 Copper

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C82700 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.2
1.8
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
46
Tensile Strength: Ultimate (UTS), MPa 270
1200
Tensile Strength: Yield (Proof), MPa 200
1020

Thermal Properties

Latent Heat of Fusion, J/g 340
240
Maximum Temperature: Mechanical, °C 160
300
Melting Completion (Liquidus), °C 610
950
Melting Onset (Solidus), °C 550
860
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
20
Electrical Conductivity: Equal Weight (Specific), % IACS 120
21

Otherwise Unclassified Properties

Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 27
12
Embodied Energy, MJ/kg 210
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
21
Resilience: Unit (Modulus of Resilience), kJ/m3 450
4260
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 40
38
Strength to Weight: Bending, points 49
29
Thermal Diffusivity, mm2/s 61
39
Thermal Shock Resistance, points 17
41

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Chromium (Cr), % 0
0 to 0.090
Copper (Cu), % 0.050 to 0.1
94.6 to 96.7
Iron (Fe), % 0 to 0.010
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
1.0 to 1.5
Silicon (Si), % 0 to 0.010
0 to 0.15
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
0 to 0.1
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5