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ZK40A Magnesium vs. C99300 Copper

ZK40A magnesium belongs to the magnesium alloys classification, while C99300 copper belongs to the copper 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 ZK40A magnesium and the bottom bar is C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 4.2
2.0
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
46
Tensile Strength: Ultimate (UTS), MPa 280
660
Tensile Strength: Yield (Proof), MPa 260
380

Thermal Properties

Latent Heat of Fusion, J/g 340
240
Maximum Temperature: Mechanical, °C 120
250
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 540
1070
Specific Heat Capacity, J/kg-K 970
450
Thermal Conductivity, W/m-K 110
43
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
35
Density, g/cm3 1.8
8.2
Embodied Carbon, kg CO2/kg material 24
4.5
Embodied Energy, MJ/kg 160
70
Embodied Water, L/kg 950
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
11
Resilience: Unit (Modulus of Resilience), kJ/m3 740
590
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 65
20
Strength to Weight: Axial, points 43
22
Strength to Weight: Bending, points 53
20
Thermal Diffusivity, mm2/s 62
12
Thermal Shock Resistance, points 17
22

Alloy Composition


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Aluminum (Al), % 0
10.7 to 11.5
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 0
68.6 to 74.4
Iron (Fe), % 0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 94.2 to 96.1
0
Nickel (Ni), % 0
13.5 to 16.5
Silicon (Si), % 0
0 to 0.020
Tin (Sn), % 0
0 to 0.050
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.3