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WE43B Magnesium vs. C99750 Brass

WE43B magnesium belongs to the magnesium alloys classification, while C99750 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
130
Elongation at Break, % 2.2
20 to 30
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
48
Tensile Strength: Ultimate (UTS), MPa 250
450 to 520
Tensile Strength: Yield (Proof), MPa 200
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 550
820
Specific Heat Capacity, J/kg-K 960
410
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 53
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 28
3.1
Embodied Energy, MJ/kg 250
51
Embodied Water, L/kg 910
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 430
190 to 300
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 61
21
Strength to Weight: Axial, points 36
15 to 18
Strength to Weight: Bending, points 46
16 to 18
Thermal Shock Resistance, points 15
13 to 15

Alloy Composition


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Aluminum (Al), % 0
0.25 to 3.0
Copper (Cu), % 0 to 0.020
55 to 61
Iron (Fe), % 0 to 0.010
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
17 to 23
Nickel (Ni), % 0 to 0.0050
0 to 5.0
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
17 to 23
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.3