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CC766S Brass vs. WE54A Magnesium

CC766S brass belongs to the copper alloys classification, while WE54A magnesium belongs to the magnesium 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 CC766S brass and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
85
Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 28
4.3 to 5.6
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 500
270 to 300
Tensile Strength: Yield (Proof), MPa 190
180

Thermal Properties

Latent Heat of Fusion, J/g 180
330
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 840
640
Melting Onset (Solidus), °C 800
570
Specific Heat Capacity, J/kg-K 390
960
Thermal Conductivity, W/m-K 89
52
Thermal Expansion, µm/m-K 20
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
10
Electrical Conductivity: Equal Weight (Specific), % IACS 36
47

Otherwise Unclassified Properties

Base Metal Price, % relative 24
34
Density, g/cm3 8.0
1.9
Embodied Carbon, kg CO2/kg material 2.8
29
Embodied Energy, MJ/kg 48
260
Embodied Water, L/kg 330
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
10 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 180
360 to 380
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
62
Strength to Weight: Axial, points 17
39 to 43
Strength to Weight: Bending, points 18
49 to 51
Thermal Diffusivity, mm2/s 28
28
Thermal Shock Resistance, points 17
18 to 19

Alloy Composition

Aluminum (Al), % 0.3 to 1.8
0
Antimony (Sb), % 0 to 0.1
0
Copper (Cu), % 58 to 64
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.010
Lead (Pb), % 0 to 0.5
0
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0 to 0.5
0 to 0.030
Nickel (Ni), % 0 to 2.0
0 to 0.0050
Silicon (Si), % 0 to 0.6
0 to 0.010
Tin (Sn), % 0 to 0.5
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 29.5 to 41.7
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3