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WE43B Magnesium vs. CC760S Brass

WE43B magnesium belongs to the magnesium alloys classification, while CC760S 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 CC760S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
22
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 250
180
Tensile Strength: Yield (Proof), MPa 200
80

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
1000
Melting Onset (Solidus), °C 550
940
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
150
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
38
Electrical Conductivity: Equal Weight (Specific), % IACS 53
40

Otherwise Unclassified Properties

Base Metal Price, % relative 34
28
Density, g/cm3 1.9
8.6
Embodied Carbon, kg CO2/kg material 28
2.6
Embodied Energy, MJ/kg 250
43
Embodied Water, L/kg 910
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
33
Resilience: Unit (Modulus of Resilience), kJ/m3 430
29
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 61
19
Strength to Weight: Axial, points 36
5.8
Strength to Weight: Bending, points 46
8.2
Thermal Diffusivity, mm2/s 28
45
Thermal Shock Resistance, points 15
6.2

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Arsenic (As), % 0
0.050 to 0.15
Copper (Cu), % 0 to 0.020
83 to 88
Iron (Fe), % 0 to 0.010
0 to 0.15
Lead (Pb), % 0
0 to 0.5
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0 to 0.1
Silicon (Si), % 0
0 to 0.020
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
10.7 to 17
Zirconium (Zr), % 0.4 to 1.0
0