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C70600 Copper-nickel vs. ZK51A Magnesium

C70600 copper-nickel belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C70600 copper-nickel and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 3.0 to 34
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
18
Shear Strength, MPa 190 to 330
160
Tensile Strength: Ultimate (UTS), MPa 290 to 570
240
Tensile Strength: Yield (Proof), MPa 63 to 270
150

Thermal Properties

Latent Heat of Fusion, J/g 220
340
Maximum Temperature: Mechanical, °C 220
120
Melting Completion (Liquidus), °C 1150
640
Melting Onset (Solidus), °C 1100
550
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 44
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
28
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 33
13
Density, g/cm3 8.9
1.8
Embodied Carbon, kg CO2/kg material 3.4
24
Embodied Energy, MJ/kg 51
160
Embodied Water, L/kg 300
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.5 to 160
10
Resilience: Unit (Modulus of Resilience), kJ/m3 16 to 290
260
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 19
64
Strength to Weight: Axial, points 9.1 to 18
36
Strength to Weight: Bending, points 11 to 17
47
Thermal Diffusivity, mm2/s 13
61
Thermal Shock Resistance, points 9.8 to 19
15

Alloy Composition

Copper (Cu), % 84.7 to 90
0 to 0.1
Iron (Fe), % 1.0 to 1.8
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), % 9.0 to 11
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