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WE43B Magnesium vs. CC755S Brass

WE43B magnesium belongs to the magnesium alloys classification, while CC755S 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 CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
9.5
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
390
Tensile Strength: Yield (Proof), MPa 200
250

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
820
Melting Onset (Solidus), °C 550
780
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
120
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
27
Electrical Conductivity: Equal Weight (Specific), % IACS 53
30

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 28
2.7
Embodied Energy, MJ/kg 250
46
Embodied Water, L/kg 910
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
33
Resilience: Unit (Modulus of Resilience), kJ/m3 430
290
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 61
19
Strength to Weight: Axial, points 36
14
Strength to Weight: Bending, points 46
15
Thermal Diffusivity, mm2/s 28
38
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0
0.4 to 0.7
Copper (Cu), % 0 to 0.020
59.5 to 61
Iron (Fe), % 0 to 0.010
0.050 to 0.2
Lead (Pb), % 0
1.2 to 1.7
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 0.050
Nickel (Ni), % 0 to 0.0050
0 to 0.2
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.3
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
35.8 to 38.9
Zirconium (Zr), % 0.4 to 1.0
0