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EN-MC65220 Magnesium vs. C19400 Copper

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C19400 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 C19400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 2.2
2.3 to 37
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Shear Strength, MPa 150
210 to 300
Tensile Strength: Ultimate (UTS), MPa 270
310 to 630
Tensile Strength: Yield (Proof), MPa 200
98 to 520

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 610
1090
Melting Onset (Solidus), °C 550
1080
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 110
260
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
58 to 68
Electrical Conductivity: Equal Weight (Specific), % IACS 120
58 to 69

Otherwise Unclassified Properties

Base Metal Price, % relative 80
30
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 27
2.6
Embodied Energy, MJ/kg 210
40

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
5.5 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 450
41 to 1140
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 40
9.7 to 20
Strength to Weight: Bending, points 49
11 to 18
Thermal Diffusivity, mm2/s 61
75
Thermal Shock Resistance, points 17
11 to 22

Alloy Composition


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Copper (Cu), % 0.050 to 0.1
96.8 to 97.8
Iron (Fe), % 0 to 0.010
2.1 to 2.6
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0.015 to 0.15
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
0.050 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.2