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ZC63A Magnesium vs. C24000 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C24000 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 C24000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 98
160
Melting Completion (Liquidus), °C 550
1000
Melting Onset (Solidus), °C 470
970
Solidification (Pattern Maker's) Shrinkage, % 1.6
5.5
Specific Heat Capacity, J/kg-K 950
390
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
32
Electrical Conductivity: Equal Weight (Specific), % IACS 140
34

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
10 to 21
Strength to Weight: Bending, points 38
12 to 20
Thermal Diffusivity, mm2/s 58
43
Thermal Shock Resistance, points 12
10 to 22

Alloy Composition

Copper (Cu), % 2.4 to 3.0
78.5 to 81.5
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
0
Zinc (Zn), % 5.5 to 6.5
18.2 to 21.5
Residuals, % 0 to 0.3
0 to 0.2