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C81400 Copper vs. ZC63A Magnesium

C81400 copper belongs to the copper alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 C81400 copper and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
48
Elongation at Break, % 11
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
19
Tensile Strength: Ultimate (UTS), MPa 370
220
Tensile Strength: Yield (Proof), MPa 250
130

Thermal Properties

Latent Heat of Fusion, J/g 210
330
Maximum Temperature: Mechanical, °C 200
98
Melting Completion (Liquidus), °C 1090
550
Melting Onset (Solidus), °C 1070
470
Specific Heat Capacity, J/kg-K 390
950
Thermal Conductivity, W/m-K 260
120
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
32
Electrical Conductivity: Equal Weight (Specific), % IACS 61
140

Otherwise Unclassified Properties

Base Metal Price, % relative 33
13
Density, g/cm3 8.9
2.1
Embodied Carbon, kg CO2/kg material 2.8
22
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 310
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 260
190
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
58
Strength to Weight: Axial, points 11
29
Strength to Weight: Bending, points 13
38
Thermal Diffusivity, mm2/s 75
58
Thermal Shock Resistance, points 13
12

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Chromium (Cr), % 0.6 to 1.0
0
Copper (Cu), % 98.4 to 99.38
2.4 to 3.0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.2
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3