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6023 Aluminum vs. C99750 Brass

6023 aluminum belongs to the aluminum alloys classification, while C99750 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
130
Elongation at Break, % 11
20 to 30
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
48
Tensile Strength: Ultimate (UTS), MPa 360
450 to 520
Tensile Strength: Yield (Proof), MPa 300 to 310
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 580
820
Specific Heat Capacity, J/kg-K 890
410
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
190 to 300
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 49
21
Strength to Weight: Axial, points 35 to 36
15 to 18
Strength to Weight: Bending, points 40
16 to 18
Thermal Shock Resistance, points 16
13 to 15

Alloy Composition

Aluminum (Al), % 94 to 97.7
0.25 to 3.0
Bismuth (Bi), % 0.3 to 0.8
0
Copper (Cu), % 0.2 to 0.5
55 to 61
Iron (Fe), % 0 to 0.5
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
17 to 23
Nickel (Ni), % 0
0 to 5.0
Silicon (Si), % 0.6 to 1.4
0
Tin (Sn), % 0.6 to 1.2
0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3