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C71500 Copper-nickel vs. ZK51A Magnesium

C71500 copper-nickel belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium 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 C71500 copper-nickel and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
45
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
18
Tensile Strength: Ultimate (UTS), MPa 380 to 620
240

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 260
120
Melting Completion (Liquidus), °C 1240
640
Melting Onset (Solidus), °C 1170
550
Specific Heat Capacity, J/kg-K 400
970
Thermal Conductivity, W/m-K 28
110
Thermal Expansion, µm/m-K 16
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
28
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
140

Otherwise Unclassified Properties

Base Metal Price, % relative 41
13
Density, g/cm3 8.9
1.8
Embodied Carbon, kg CO2/kg material 5.1
24
Embodied Energy, MJ/kg 74
160
Embodied Water, L/kg 280
940

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
64
Strength to Weight: Axial, points 12 to 19
36
Strength to Weight: Bending, points 13 to 18
47
Thermal Diffusivity, mm2/s 7.7
61
Thermal Shock Resistance, points 12 to 20
15

Alloy Composition

Copper (Cu), % 63.5 to 70.6
0 to 0.1
Iron (Fe), % 0.4 to 1.0
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 29 to 33
0 to 0.010
Zinc (Zn), % 0 to 1.0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3