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ZK51A Magnesium vs. C19800 Copper

ZK51A magnesium belongs to the magnesium alloys classification, while C19800 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 ZK51A magnesium and the bottom bar is C19800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.7
9.0 to 12
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 160
260 to 330
Tensile Strength: Ultimate (UTS), MPa 240
430 to 550
Tensile Strength: Yield (Proof), MPa 150
420 to 550

Thermal Properties

Latent Heat of Fusion, J/g 340
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 640
1070
Melting Onset (Solidus), °C 550
1050
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 110
260
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
61
Electrical Conductivity: Equal Weight (Specific), % IACS 140
62

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 24
2.8
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 940
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
49 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 260
770 to 1320
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 64
18
Strength to Weight: Axial, points 36
14 to 17
Strength to Weight: Bending, points 47
14 to 17
Thermal Diffusivity, mm2/s 61
75
Thermal Shock Resistance, points 15
15 to 20

Alloy Composition

Copper (Cu), % 0 to 0.1
95.7 to 99.47
Iron (Fe), % 0
0.020 to 0.5
Magnesium (Mg), % 93.1 to 95.9
0.1 to 1.0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.010 to 0.1
Tin (Sn), % 0
0.1 to 1.0
Zinc (Zn), % 3.6 to 5.5
0.3 to 1.5
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.2