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C99500 Copper vs. ZK51A Magnesium

C99500 copper belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium 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 C99500 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, % 13
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 45
18
Tensile Strength: Ultimate (UTS), MPa 540
240
Tensile Strength: Yield (Proof), MPa 310
150

Thermal Properties

Latent Heat of Fusion, J/g 240
340
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1040
550
Specific Heat Capacity, J/kg-K 400
970
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
28
Electrical Conductivity: Equal Weight (Specific), % IACS 10
140

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.7
1.8
Embodied Carbon, kg CO2/kg material 3.0
24
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 300
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
10
Resilience: Unit (Modulus of Resilience), kJ/m3 410
260
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 19
64
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 17
47
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
0
Copper (Cu), % 82.5 to 92
0 to 0.1
Iron (Fe), % 3.0 to 5.0
0
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 5.5
0 to 0.010
Silicon (Si), % 0.5 to 2.0
0
Zinc (Zn), % 0.5 to 2.0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3