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C24000 Brass vs. ZE41A Magnesium

C24000 brass belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (11, 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 C24000 brass and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 42
18
Tensile Strength: Ultimate (UTS), MPa 310 to 640
210

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 1000
640
Melting Onset (Solidus), °C 970
540
Solidification (Pattern Maker's) Shrinkage, % 5.5
1.3
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
27
Electrical Conductivity: Equal Weight (Specific), % IACS 34
130

Otherwise Unclassified Properties

Base Metal Price, % relative 27
18
Density, g/cm3 8.5
1.9
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 43
170
Embodied Water, L/kg 320
940

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
63
Strength to Weight: Axial, points 10 to 21
31
Strength to Weight: Bending, points 12 to 20
41
Thermal Diffusivity, mm2/s 43
59
Thermal Shock Resistance, points 10 to 22
12

Alloy Composition

Copper (Cu), % 78.5 to 81.5
0 to 0.1
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 18.2 to 21.5
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3