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6082 Aluminum vs. C85700 Brass

6082 aluminum belongs to the aluminum alloys classification, while C85700 brass belongs to the copper alloys. There are 28 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 6082 aluminum and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 6.3 to 18
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 140 to 340
310
Tensile Strength: Yield (Proof), MPa 85 to 320
110

Thermal Properties

Latent Heat of Fusion, J/g 410
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 650
940
Melting Onset (Solidus), °C 580
910
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 160
84
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
22
Electrical Conductivity: Equal Weight (Specific), % IACS 140
25

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1170
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 43
41
Resilience: Unit (Modulus of Resilience), kJ/m3 52 to 710
59
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 14 to 35
11
Strength to Weight: Bending, points 21 to 40
13
Thermal Diffusivity, mm2/s 67
27
Thermal Shock Resistance, points 6.0 to 15
10

Alloy Composition

Aluminum (Al), % 95.2 to 98.3
0 to 0.8
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.1
58 to 64
Iron (Fe), % 0 to 0.5
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0.7 to 1.3
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
32 to 40
Residuals, % 0
0 to 1.3