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EN-MC65210 Magnesium vs. C71640 Copper-nickel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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-MC65210 magnesium and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
52
Tensile Strength: Ultimate (UTS), MPa 270
490 to 630
Tensile Strength: Yield (Proof), MPa 200
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 340
240
Maximum Temperature: Mechanical, °C 170
260
Melting Completion (Liquidus), °C 610
1180
Melting Onset (Solidus), °C 540
1120
Specific Heat Capacity, J/kg-K 970
410
Thermal Conductivity, W/m-K 110
29
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
7.1

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.9
Embodied Carbon, kg CO2/kg material 27
5.0
Embodied Energy, MJ/kg 220
73

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 450
130 to 750
Stiffness to Weight: Axial, points 12
8.7
Stiffness to Weight: Bending, points 59
20
Strength to Weight: Axial, points 38
15 to 20
Strength to Weight: Bending, points 47
16 to 18
Thermal Diffusivity, mm2/s 58
8.2
Thermal Shock Resistance, points 17
16 to 21

Alloy Composition


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Copper (Cu), % 0 to 0.030
61.7 to 67.8
Iron (Fe), % 0 to 0.010
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
1.5 to 2.5
Nickel (Ni), % 0 to 0.0050
29 to 32
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 1.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5