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CC493K Bronze vs. ZK51A Magnesium

CC493K bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 28 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 CC493K bronze and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
45
Elongation at Break, % 14
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 39
18
Tensile Strength: Ultimate (UTS), MPa 270
240
Tensile Strength: Yield (Proof), MPa 140
150

Thermal Properties

Latent Heat of Fusion, J/g 180
340
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 960
640
Melting Onset (Solidus), °C 880
550
Specific Heat Capacity, J/kg-K 360
970
Thermal Conductivity, W/m-K 61
110
Thermal Expansion, µm/m-K 19
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
28
Electrical Conductivity: Equal Weight (Specific), % IACS 12
140

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.9
1.8
Embodied Carbon, kg CO2/kg material 3.3
24
Embodied Energy, MJ/kg 53
160
Embodied Water, L/kg 370
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
10
Resilience: Unit (Modulus of Resilience), kJ/m3 89
260
Stiffness to Weight: Axial, points 6.5
14
Stiffness to Weight: Bending, points 18
64
Strength to Weight: Axial, points 8.6
36
Strength to Weight: Bending, points 11
47
Thermal Diffusivity, mm2/s 19
61
Thermal Shock Resistance, points 10
15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.3
0
Copper (Cu), % 79 to 86
0 to 0.1
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 5.0 to 8.0
0
Magnesium (Mg), % 0
93.1 to 95.9
Nickel (Ni), % 0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 5.2 to 8.0
0
Zinc (Zn), % 2.0 to 5.0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3