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ZK40A Magnesium vs. C66100 Bronze

ZK40A magnesium belongs to the magnesium alloys classification, while C66100 bronze belongs to the copper alloys. There are 27 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 ZK40A magnesium and the bottom bar is C66100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 4.2
8.0 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 160
280 to 460
Tensile Strength: Ultimate (UTS), MPa 280
410 to 790
Tensile Strength: Yield (Proof), MPa 260
120 to 430

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 540
1000
Specific Heat Capacity, J/kg-K 970
400
Thermal Conductivity, W/m-K 110
34
Thermal Expansion, µm/m-K 26
17

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
Density, g/cm3 1.8
8.7
Embodied Carbon, kg CO2/kg material 24
2.6
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 950
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
53 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 740
60 to 790
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 65
19
Strength to Weight: Axial, points 43
13 to 25
Strength to Weight: Bending, points 53
14 to 22
Thermal Diffusivity, mm2/s 62
9.7
Thermal Shock Resistance, points 17
15 to 29

Alloy Composition


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Copper (Cu), % 0
92 to 97
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0.2 to 0.8
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0 to 1.5
Silicon (Si), % 0
2.8 to 3.5
Zinc (Zn), % 3.5 to 4.5
0 to 1.5
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5