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CC491K Bronze vs. ZC63A Magnesium

CC491K bronze belongs to the copper alloys classification, while ZC63A 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 CC491K bronze and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
60
Elastic (Young's, Tensile) Modulus, GPa 110
48
Elongation at Break, % 13
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 260
220
Tensile Strength: Yield (Proof), MPa 120
130

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 160
98
Melting Completion (Liquidus), °C 980
550
Melting Onset (Solidus), °C 900
470
Specific Heat Capacity, J/kg-K 370
950
Thermal Conductivity, W/m-K 71
120
Thermal Expansion, µm/m-K 19
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
32
Electrical Conductivity: Equal Weight (Specific), % IACS 15
140

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.9
2.1
Embodied Carbon, kg CO2/kg material 3.1
22
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 350
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 67
190
Stiffness to Weight: Axial, points 6.7
13
Stiffness to Weight: Bending, points 18
58
Strength to Weight: Axial, points 8.1
29
Strength to Weight: Bending, points 10
38
Thermal Diffusivity, mm2/s 22
58
Thermal Shock Resistance, points 9.3
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 81 to 87
2.4 to 3.0
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 4.0 to 6.0
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.2
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
5.5 to 6.5
Residuals, % 0
0 to 0.3