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EN-MC65220 Magnesium vs. C72500 Copper-nickel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C72500 copper-nickel belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
45
Tensile Strength: Ultimate (UTS), MPa 270
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 610
1130
Melting Onset (Solidus), °C 550
1060
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 110
54
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
11

Otherwise Unclassified Properties

Base Metal Price, % relative 80
35
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 27
3.6
Embodied Energy, MJ/kg 210
55

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 40
13 to 24
Strength to Weight: Bending, points 49
14 to 21
Thermal Diffusivity, mm2/s 61
16
Thermal Shock Resistance, points 17
14 to 27

Alloy Composition


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Copper (Cu), % 0.050 to 0.1
85.2 to 89.7
Iron (Fe), % 0 to 0.010
0 to 0.6
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0 to 0.0050
8.5 to 10.5
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
1.8 to 2.8
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.2