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C64800 Bronze vs. ZK51A Magnesium

C64800 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 (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 C64800 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, % 8.0
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
18
Shear Strength, MPa 380
160
Tensile Strength: Ultimate (UTS), MPa 640
240
Tensile Strength: Yield (Proof), MPa 630
150

Thermal Properties

Latent Heat of Fusion, J/g 220
340
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1030
550
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 260
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 65
28
Electrical Conductivity: Equal Weight (Specific), % IACS 66
140

Otherwise Unclassified Properties

Base Metal Price, % relative 33
13
Density, g/cm3 8.9
1.8
Embodied Carbon, kg CO2/kg material 2.7
24
Embodied Energy, MJ/kg 43
160
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
10
Resilience: Unit (Modulus of Resilience), kJ/m3 1680
260
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 18
64
Strength to Weight: Axial, points 20
36
Strength to Weight: Bending, points 19
47
Thermal Diffusivity, mm2/s 75
61
Thermal Shock Resistance, points 23
15

Alloy Composition

Chromium (Cr), % 0 to 0.090
0
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
93.1 to 95.9
Nickel (Ni), % 0 to 0.5
0 to 0.010
Phosphorus (P), % 0 to 0.5
0
Silicon (Si), % 0.2 to 1.0
0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 0 to 0.5
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3