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C69300 Brass vs. WE54A Magnesium

C69300 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 (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 C69300 brass and the bottom bar is WE54A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 8.5 to 15
4.3 to 5.6
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
17
Shear Strength, MPa 330 to 370
150 to 170
Tensile Strength: Ultimate (UTS), MPa 550 to 630
270 to 300
Tensile Strength: Yield (Proof), MPa 300 to 390
180

Thermal Properties

Latent Heat of Fusion, J/g 240
330
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 880
640
Melting Onset (Solidus), °C 860
570
Specific Heat Capacity, J/kg-K 400
960
Thermal Conductivity, W/m-K 38
52
Thermal Expansion, µm/m-K 19
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
47

Otherwise Unclassified Properties

Base Metal Price, % relative 26
34
Density, g/cm3 8.2
1.9
Embodied Carbon, kg CO2/kg material 2.7
29
Embodied Energy, MJ/kg 45
260
Embodied Water, L/kg 310
900

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47 to 70
10 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 700
360 to 380
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
62
Strength to Weight: Axial, points 19 to 21
39 to 43
Strength to Weight: Bending, points 18 to 20
49 to 51
Thermal Diffusivity, mm2/s 12
28
Thermal Shock Resistance, points 19 to 22
18 to 19

Alloy Composition

Copper (Cu), % 73 to 77
0 to 0.030
Iron (Fe), % 0 to 0.1
0 to 0.010
Lead (Pb), % 0 to 0.090
0
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
88.7 to 93.4
Manganese (Mn), % 0 to 0.1
0 to 0.030
Nickel (Ni), % 0 to 0.1
0 to 0.0050
Phosphorus (P), % 0.040 to 0.15
0
Silicon (Si), % 2.7 to 3.4
0 to 0.010
Tin (Sn), % 0 to 0.2
0
Unspecified Rare Earths, % 0
1.5 to 4.0
Yttrium (Y), % 0
4.8 to 5.5
Zinc (Zn), % 18.4 to 24.3
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3