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EN-MC21220 Magnesium vs. C17000 Copper

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C17000 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-MC21220 magnesium and the bottom bar is C17000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 11
1.1 to 31
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
45
Shear Strength, MPa 120
320 to 750
Tensile Strength: Ultimate (UTS), MPa 210
490 to 1310
Tensile Strength: Yield (Proof), MPa 120
160 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
270
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 540
870
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 65
110
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
22
Electrical Conductivity: Equal Weight (Specific), % IACS 87
22

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 23
8.7
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
4.2 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 160
110 to 5420
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
15 to 41
Strength to Weight: Bending, points 46
16 to 30
Thermal Diffusivity, mm2/s 39
32
Thermal Shock Resistance, points 12
17 to 45

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0 to 0.2
Beryllium (Be), % 0
1.6 to 1.8
Copper (Cu), % 0 to 0.010
96.3 to 98.2
Iron (Fe), % 0 to 0.0050
0 to 0.4
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0.2 to 0.6
Silicon (Si), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.5