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ZC63A Magnesium vs. C71640 Copper-nickel

ZC63A magnesium belongs to the magnesium alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 ZC63A magnesium and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
52
Tensile Strength: Ultimate (UTS), MPa 220
490 to 630
Tensile Strength: Yield (Proof), MPa 130
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 330
240
Maximum Temperature: Mechanical, °C 98
260
Melting Completion (Liquidus), °C 550
1180
Melting Onset (Solidus), °C 470
1120
Specific Heat Capacity, J/kg-K 950
410
Thermal Conductivity, W/m-K 120
29
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
40
Density, g/cm3 2.1
8.9
Embodied Carbon, kg CO2/kg material 22
5.0
Embodied Energy, MJ/kg 150
73
Embodied Water, L/kg 920
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 190
130 to 750
Stiffness to Weight: Axial, points 13
8.7
Stiffness to Weight: Bending, points 58
20
Strength to Weight: Axial, points 29
15 to 20
Strength to Weight: Bending, points 38
16 to 18
Thermal Diffusivity, mm2/s 58
8.2
Thermal Shock Resistance, points 12
16 to 21

Alloy Composition

Copper (Cu), % 2.4 to 3.0
61.7 to 67.8
Iron (Fe), % 0
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
1.5 to 2.5
Nickel (Ni), % 0 to 0.010
29 to 32
Silicon (Si), % 0 to 0.2
0
Zinc (Zn), % 5.5 to 6.5
0 to 1.0
Residuals, % 0 to 0.3
0 to 0.5