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ZC63A Magnesium vs. C70700 Copper-nickel

ZC63A magnesium belongs to the magnesium alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
73
Elastic (Young's, Tensile) Modulus, GPa 48
120
Elongation at Break, % 3.3
39
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 19
46
Shear Strength, MPa 130
220
Tensile Strength: Ultimate (UTS), MPa 220
320
Tensile Strength: Yield (Proof), MPa 130
110

Thermal Properties

Latent Heat of Fusion, J/g 330
220
Maximum Temperature: Mechanical, °C 98
220
Melting Completion (Liquidus), °C 550
1120
Melting Onset (Solidus), °C 470
1060
Specific Heat Capacity, J/kg-K 950
390
Thermal Conductivity, W/m-K 120
59
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
34
Density, g/cm3 2.1
8.9
Embodied Carbon, kg CO2/kg material 22
3.4
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 920
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
51
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
10
Strength to Weight: Bending, points 38
12
Thermal Diffusivity, mm2/s 58
17
Thermal Shock Resistance, points 12
12

Alloy Composition

Copper (Cu), % 2.4 to 3.0
88.5 to 90.5
Iron (Fe), % 0
0 to 0.050
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0 to 0.5
Nickel (Ni), % 0 to 0.010
9.5 to 10.5
Silicon (Si), % 0 to 0.2
0
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0 to 0.5