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WE43B Magnesium vs. C68400 Brass

WE43B magnesium belongs to the magnesium alloys classification, while C68400 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
18
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
41
Shear Strength, MPa 140
330
Tensile Strength: Ultimate (UTS), MPa 250
540
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 330
210
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 550
820
Specific Heat Capacity, J/kg-K 960
400
Thermal Conductivity, W/m-K 51
66
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
87
Electrical Conductivity: Equal Weight (Specific), % IACS 53
99

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 28
2.7
Embodied Energy, MJ/kg 250
47
Embodied Water, L/kg 910
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
81
Resilience: Unit (Modulus of Resilience), kJ/m3 430
460
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 61
20
Strength to Weight: Axial, points 36
19
Strength to Weight: Bending, points 46
19
Thermal Diffusivity, mm2/s 28
21
Thermal Shock Resistance, points 15
18

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 0 to 0.020
59 to 64
Iron (Fe), % 0 to 0.010
0 to 1.0
Lead (Pb), % 0
0 to 0.090
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0.2 to 1.5
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
28.6 to 39.3
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.5