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WE43B Magnesium vs. C72200 Copper-nickel

WE43B magnesium belongs to the magnesium alloys classification, while C72200 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 WE43B magnesium and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
48
Tensile Strength: Ultimate (UTS), MPa 250
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 330
220
Maximum Temperature: Mechanical, °C 180
230
Melting Completion (Liquidus), °C 640
1180
Melting Onset (Solidus), °C 550
1120
Specific Heat Capacity, J/kg-K 960
400
Thermal Conductivity, W/m-K 51
34
Thermal Expansion, µm/m-K 27
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 53
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 28
3.9
Embodied Energy, MJ/kg 250
59
Embodied Water, L/kg 910
300

Common Calculations

Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 61
19
Strength to Weight: Axial, points 36
11 to 18
Strength to Weight: Bending, points 46
12 to 17
Thermal Diffusivity, mm2/s 28
9.6
Thermal Shock Resistance, points 15
12 to 20

Alloy Composition


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Chromium (Cr), % 0
0.3 to 0.7
Copper (Cu), % 0 to 0.020
78.1 to 84.2
Iron (Fe), % 0 to 0.010
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 1.0
Nickel (Ni), % 0 to 0.0050
15 to 18
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0 to 1.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.2