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ZK40A Magnesium vs. C96700 Copper

ZK40A magnesium belongs to the magnesium alloys classification, while C96700 copper belongs to the copper alloys. There are 26 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 ZK40A magnesium and the bottom bar is C96700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
140
Elongation at Break, % 4.2
10
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
53
Tensile Strength: Ultimate (UTS), MPa 280
1210
Tensile Strength: Yield (Proof), MPa 260
550

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 120
310
Melting Completion (Liquidus), °C 600
1170
Melting Onset (Solidus), °C 540
1110
Specific Heat Capacity, J/kg-K 970
400
Thermal Conductivity, W/m-K 110
30
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 13
90
Density, g/cm3 1.8
8.8
Embodied Carbon, kg CO2/kg material 24
9.5
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 950
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
99
Resilience: Unit (Modulus of Resilience), kJ/m3 740
1080
Stiffness to Weight: Axial, points 14
8.9
Stiffness to Weight: Bending, points 65
20
Strength to Weight: Axial, points 43
38
Strength to Weight: Bending, points 53
29
Thermal Diffusivity, mm2/s 62
8.5
Thermal Shock Resistance, points 17
40

Alloy Composition

Beryllium (Be), % 0
1.1 to 1.2
Copper (Cu), % 0
62.4 to 68.8
Iron (Fe), % 0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0.4 to 1.0
Nickel (Ni), % 0
29 to 33
Silicon (Si), % 0
0 to 0.15
Titanium (Ti), % 0
0.15 to 0.35
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0.15 to 0.35
Residuals, % 0
0 to 0.5