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ZC63A Magnesium vs. C94300 Bronze

ZC63A magnesium belongs to the magnesium alloys classification, while C94300 bronze belongs to the copper 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 ZC63A magnesium and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
87
Elongation at Break, % 3.3
9.7
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 19
32
Tensile Strength: Ultimate (UTS), MPa 220
180
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 330
150
Maximum Temperature: Mechanical, °C 98
110
Melting Completion (Liquidus), °C 550
820
Melting Onset (Solidus), °C 470
760
Specific Heat Capacity, J/kg-K 950
320
Thermal Conductivity, W/m-K 120
63
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 2.1
9.3
Embodied Carbon, kg CO2/kg material 22
2.9
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 920
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
15
Resilience: Unit (Modulus of Resilience), kJ/m3 190
77
Stiffness to Weight: Axial, points 13
5.2
Stiffness to Weight: Bending, points 58
16
Strength to Weight: Axial, points 29
5.2
Strength to Weight: Bending, points 38
7.4
Thermal Diffusivity, mm2/s 58
21
Thermal Shock Resistance, points 12
7.1

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Copper (Cu), % 2.4 to 3.0
67 to 72
Iron (Fe), % 0
0 to 0.15
Lead (Pb), % 0
23 to 27
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 5.5 to 6.5
0 to 0.8
Residuals, % 0 to 0.3
0 to 1.0