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6023 Aluminum vs. C66900 Brass

6023 aluminum belongs to the aluminum alloys classification, while C66900 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 6023 aluminum and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 11
1.1 to 26
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
45
Shear Strength, MPa 210 to 220
290 to 440
Tensile Strength: Ultimate (UTS), MPa 360
460 to 770
Tensile Strength: Yield (Proof), MPa 300 to 310
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 640
860
Melting Onset (Solidus), °C 580
850
Specific Heat Capacity, J/kg-K 890
400
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
460 to 2450
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 35 to 36
15 to 26
Strength to Weight: Bending, points 40
16 to 23
Thermal Shock Resistance, points 16
14 to 23

Alloy Composition

Aluminum (Al), % 94 to 97.7
0
Bismuth (Bi), % 0.3 to 0.8
0
Copper (Cu), % 0.2 to 0.5
62.5 to 64.5
Iron (Fe), % 0 to 0.5
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
11.5 to 12.5
Silicon (Si), % 0.6 to 1.4
0
Tin (Sn), % 0.6 to 1.2
0
Zinc (Zn), % 0
22.5 to 26
Residuals, % 0
0 to 0.2