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WE43B Magnesium vs. CC767S Brass

WE43B magnesium belongs to the magnesium alloys classification, while CC767S brass 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 WE43B magnesium and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
34
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
430
Tensile Strength: Yield (Proof), MPa 200
150

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 550
790
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
110
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
32
Electrical Conductivity: Equal Weight (Specific), % IACS 53
36

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 28
2.7
Embodied Energy, MJ/kg 250
47
Embodied Water, L/kg 910
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
110
Resilience: Unit (Modulus of Resilience), kJ/m3 430
100
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 61
20
Strength to Weight: Axial, points 36
15
Strength to Weight: Bending, points 46
16
Thermal Diffusivity, mm2/s 28
34
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.8
Copper (Cu), % 0 to 0.020
58 to 64
Iron (Fe), % 0 to 0.010
0 to 0.5
Lead (Pb), % 0
0 to 0.1
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Silicon (Si), % 0
0 to 0.2
Tin (Sn), % 0
0 to 0.1
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
32.8 to 41.9
Zirconium (Zr), % 0.4 to 1.0
0