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WE43B Magnesium vs. C35000 Brass

WE43B magnesium belongs to the magnesium alloys classification, while C35000 brass belongs to the copper alloys. There are 24 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 WE43B magnesium and the bottom bar is C35000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 550
890
Specific Heat Capacity, J/kg-K 960
380
Thermal Conductivity, W/m-K 51
120
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
26
Electrical Conductivity: Equal Weight (Specific), % IACS 53
29

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
45
Embodied Water, L/kg 910
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 61
19
Strength to Weight: Axial, points 36
12 to 22
Strength to Weight: Bending, points 46
13 to 21
Thermal Diffusivity, mm2/s 28
37
Thermal Shock Resistance, points 15
11 to 22

Alloy Composition


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Copper (Cu), % 0 to 0.020
60 to 63
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0.8 to 2.0
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.0050
0
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
34.5 to 39.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.4