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WE43B Magnesium vs. C68100 Brass

WE43B magnesium belongs to the magnesium alloys classification, while C68100 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 C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
29
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
380
Tensile Strength: Yield (Proof), MPa 200
140

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
890
Melting Onset (Solidus), °C 550
870
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
98
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
24
Electrical Conductivity: Equal Weight (Specific), % IACS 53
27

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 28
2.8
Embodied Energy, MJ/kg 250
47
Embodied Water, L/kg 910
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
86
Resilience: Unit (Modulus of Resilience), kJ/m3 430
94
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 61
20
Strength to Weight: Axial, points 36
13
Strength to Weight: Bending, points 46
15
Thermal Diffusivity, mm2/s 28
32
Thermal Shock Resistance, points 15
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 0 to 0.020
56 to 60
Iron (Fe), % 0 to 0.010
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0.010 to 0.5
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
36.4 to 43
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.5