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C81400 Copper vs. ZK60A Magnesium

C81400 copper belongs to the copper alloys classification, while ZK60A magnesium belongs to the magnesium alloys. There are 28 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 C81400 copper and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
46
Elongation at Break, % 11
4.5 to 9.9
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
18
Tensile Strength: Ultimate (UTS), MPa 370
320 to 330
Tensile Strength: Yield (Proof), MPa 250
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 210
330
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
600
Melting Onset (Solidus), °C 1070
550
Specific Heat Capacity, J/kg-K 390
960
Thermal Conductivity, W/m-K 260
120
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 61
140

Otherwise Unclassified Properties

Base Metal Price, % relative 33
13
Density, g/cm3 8.9
1.9
Embodied Carbon, kg CO2/kg material 2.8
23
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 260
570 to 690
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 11
47 to 49
Strength to Weight: Bending, points 13
55 to 56
Thermal Diffusivity, mm2/s 75
66
Thermal Shock Resistance, points 13
19 to 20

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
0
Magnesium (Mg), % 0
92.5 to 94.8
Zinc (Zn), % 0
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3