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1085 Aluminum vs. C26000 Brass

1085 aluminum belongs to the aluminum alloys classification, while C26000 brass belongs to the copper alloys. There are 29 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 1085 aluminum and the bottom bar is C26000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 4.5 to 39
2.5 to 66
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
41
Shear Strength, MPa 48 to 79
230 to 390
Tensile Strength: Ultimate (UTS), MPa 73 to 140
320 to 680
Tensile Strength: Yield (Proof), MPa 17 to 120
110 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 640
950
Melting Onset (Solidus), °C 640
920
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 230
120
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
28
Electrical Conductivity: Equal Weight (Specific), % IACS 200
31

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 1200
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
6.1 to 420
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
51 to 1490
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 7.5 to 14
11 to 23
Strength to Weight: Bending, points 14 to 22
13 to 21
Thermal Diffusivity, mm2/s 94
38
Thermal Shock Resistance, points 3.3 to 6.1
11 to 23

Alloy Composition

Aluminum (Al), % 99.85 to 100
0
Bismuth (Bi), % 0
0 to 0.0059
Copper (Cu), % 0 to 0.030
68.5 to 71.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.12
0 to 0.050
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
28.1 to 31.5
Residuals, % 0
0 to 0.3