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EN-MC65120 Magnesium vs. C19025 Copper

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C19025 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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-MC65120 magnesium and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 3.1
8.0 to 17
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 92
300 to 360
Tensile Strength: Ultimate (UTS), MPa 160
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 330
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 590
1080
Melting Onset (Solidus), °C 520
1020
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
160
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 120
40

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 25
2.8
Embodied Energy, MJ/kg 190
44
Embodied Water, L/kg 930
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
15 to 19
Strength to Weight: Bending, points 34
15 to 18
Thermal Diffusivity, mm2/s 56
47
Thermal Shock Resistance, points 9.8
17 to 22

Alloy Composition

Copper (Cu), % 0 to 0.030
97.1 to 98.5
Iron (Fe), % 0 to 0.010
0
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0.8 to 1.2
Phosphorus (P), % 0
0.030 to 0.070
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
0.7 to 1.1
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.3