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C22600 Bronze vs. ZK51A Magnesium

C22600 bronze 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 (4, 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 C22600 bronze and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 2.5 to 33
4.7
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
18
Shear Strength, MPa 220 to 320
160
Tensile Strength: Ultimate (UTS), MPa 330 to 570
240
Tensile Strength: Yield (Proof), MPa 270 to 490
150

Thermal Properties

Latent Heat of Fusion, J/g 200
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1040
640
Melting Onset (Solidus), °C 1000
550
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
28
Electrical Conductivity: Equal Weight (Specific), % IACS 42
140

Otherwise Unclassified Properties

Base Metal Price, % relative 28
13
Density, g/cm3 8.7
1.8
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 100
10
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1070
260
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
64
Strength to Weight: Axial, points 11 to 18
36
Strength to Weight: Bending, points 12 to 18
47
Thermal Diffusivity, mm2/s 52
61
Thermal Shock Resistance, points 11 to 19
15

Alloy Composition

Copper (Cu), % 86 to 89
0 to 0.1
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
93.1 to 95.9
Nickel (Ni), % 0
0 to 0.010
Zinc (Zn), % 10.7 to 14
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3