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C22000 Bronze vs. ZK60A Magnesium

C22000 bronze belongs to the copper alloys classification, while ZK60A 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 C22000 bronze and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
46
Elongation at Break, % 1.9 to 45
4.5 to 9.9
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
18
Shear Strength, MPa 200 to 300
170 to 190
Tensile Strength: Ultimate (UTS), MPa 260 to 520
320 to 330
Tensile Strength: Yield (Proof), MPa 69 to 500
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 200
330
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1040
600
Melting Onset (Solidus), °C 1020
550
Specific Heat Capacity, J/kg-K 390
960
Thermal Conductivity, W/m-K 190
120
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 45
140

Otherwise Unclassified Properties

Base Metal Price, % relative 29
13
Density, g/cm3 8.7
1.9
Embodied Carbon, kg CO2/kg material 2.6
23
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.7 to 230
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 1110
570 to 690
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 8.1 to 17
47 to 49
Strength to Weight: Bending, points 10 to 17
55 to 56
Thermal Diffusivity, mm2/s 56
66
Thermal Shock Resistance, points 8.8 to 18
19 to 20

Alloy Composition

Copper (Cu), % 89 to 91
0
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
92.5 to 94.8
Zinc (Zn), % 8.7 to 11
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3