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328.0 Aluminum vs. C69400 Brass

328.0 aluminum belongs to the aluminum alloys classification, while C69400 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 328.0 aluminum and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 1.6 to 2.1
17
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
42
Tensile Strength: Ultimate (UTS), MPa 200 to 270
570
Tensile Strength: Yield (Proof), MPa 120 to 170
270

Thermal Properties

Latent Heat of Fusion, J/g 510
260
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 620
920
Melting Onset (Solidus), °C 560
820
Specific Heat Capacity, J/kg-K 890
410
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 99
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
27
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 7.8
2.7
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 1070
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.0
80
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 200
340
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 51
19
Strength to Weight: Axial, points 21 to 28
19
Strength to Weight: Bending, points 28 to 34
18
Thermal Diffusivity, mm2/s 50
7.7
Thermal Shock Resistance, points 9.2 to 12
20

Alloy Composition

Aluminum (Al), % 84.5 to 91.1
0
Chromium (Cr), % 0 to 0.35
0
Copper (Cu), % 1.0 to 2.0
80 to 83
Iron (Fe), % 0 to 1.0
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 0.2 to 0.6
0
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 7.5 to 8.5
3.5 to 4.5
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.5
11.5 to 16.5
Residuals, % 0
0 to 0.5