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C19400 Copper vs. ZK51A Magnesium

C19400 copper belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 29 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 C19400 copper and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 2.3 to 37
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
18
Shear Strength, MPa 210 to 300
160
Tensile Strength: Ultimate (UTS), MPa 310 to 630
240
Tensile Strength: Yield (Proof), MPa 98 to 520
150

Thermal Properties

Latent Heat of Fusion, J/g 210
340
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1080
550
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 260
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58 to 68
28
Electrical Conductivity: Equal Weight (Specific), % IACS 58 to 69
140

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.9
1.8
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 40
160
Embodied Water, L/kg 300
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 220
10
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 1140
260
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
64
Strength to Weight: Axial, points 9.7 to 20
36
Strength to Weight: Bending, points 11 to 18
47
Thermal Diffusivity, mm2/s 75
61
Thermal Shock Resistance, points 11 to 22
15

Alloy Composition

Copper (Cu), % 96.8 to 97.8
0 to 0.1
Iron (Fe), % 2.1 to 2.6
0
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
93.1 to 95.9
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0.015 to 0.15
0
Zinc (Zn), % 0.050 to 0.2
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3