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C63020 Bronze vs. ZK51A Magnesium

C63020 bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 27 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 C63020 bronze and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 6.8
4.7
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 44
18
Shear Strength, MPa 600
160
Tensile Strength: Ultimate (UTS), MPa 1020
240
Tensile Strength: Yield (Proof), MPa 740
150

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 230
120
Melting Completion (Liquidus), °C 1070
640
Melting Onset (Solidus), °C 1020
550
Specific Heat Capacity, J/kg-K 450
970
Thermal Conductivity, W/m-K 40
110
Thermal Expansion, µm/m-K 18
26

Otherwise Unclassified Properties

Base Metal Price, % relative 29
13
Density, g/cm3 8.2
1.8
Embodied Carbon, kg CO2/kg material 3.6
24
Embodied Energy, MJ/kg 58
160
Embodied Water, L/kg 390
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
10
Resilience: Unit (Modulus of Resilience), kJ/m3 2320
260
Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 20
64
Strength to Weight: Axial, points 34
36
Strength to Weight: Bending, points 27
47
Thermal Diffusivity, mm2/s 11
61
Thermal Shock Resistance, points 35
15

Alloy Composition

Aluminum (Al), % 10 to 11
0
Chromium (Cr), % 0 to 0.050
0
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
0 to 0.1
Iron (Fe), % 4.0 to 5.5
0
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.2 to 6.0
0 to 0.010
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.3
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3