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C23400 Brass vs. ZC63A Magnesium

C23400 brass belongs to the copper alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, 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 C23400 brass and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
48
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 42
19
Tensile Strength: Ultimate (UTS), MPa 370 to 640
220

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 160
98
Melting Completion (Liquidus), °C 970
550
Melting Onset (Solidus), °C 930
470
Specific Heat Capacity, J/kg-K 390
950
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 19
26

Otherwise Unclassified Properties

Base Metal Price, % relative 27
13
Density, g/cm3 8.5
2.1
Embodied Carbon, kg CO2/kg material 2.6
22
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 320
920

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
58
Strength to Weight: Axial, points 12 to 21
29
Strength to Weight: Bending, points 13 to 19
38
Thermal Diffusivity, mm2/s 36
58
Thermal Shock Resistance, points 12 to 22
12

Alloy Composition

Copper (Cu), % 81 to 84
2.4 to 3.0
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.2
Zinc (Zn), % 15.7 to 19
5.5 to 6.5
Residuals, % 0 to 0.2
0 to 0.3