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C19700 Copper vs. ZE41A Magnesium

C19700 copper belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, 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 C19700 copper and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 2.4 to 13
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
18
Shear Strength, MPa 240 to 300
150
Tensile Strength: Ultimate (UTS), MPa 400 to 530
210
Tensile Strength: Yield (Proof), MPa 330 to 520
140

Thermal Properties

Latent Heat of Fusion, J/g 210
330
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1040
540
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 250
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 86 to 88
27
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 89
130

Otherwise Unclassified Properties

Base Metal Price, % relative 30
18
Density, g/cm3 8.9
1.9
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 41
170
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 49
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1160
220
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 12 to 16
31
Strength to Weight: Bending, points 14 to 16
41
Thermal Diffusivity, mm2/s 73
59
Thermal Shock Resistance, points 14 to 19
12

Alloy Composition

Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 97.4 to 99.59
0 to 0.1
Iron (Fe), % 0.3 to 1.2
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.010 to 0.2
91.7 to 95.4
Manganese (Mn), % 0 to 0.050
0 to 0.15
Nickel (Ni), % 0 to 0.050
0 to 0.010
Phosphorus (P), % 0.1 to 0.4
0
Tin (Sn), % 0 to 0.2
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.2
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3