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3105 Aluminum vs. C46500 Brass

3105 aluminum belongs to the aluminum alloys classification, while C46500 brass belongs to the copper alloys. There are 29 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 3105 aluminum and the bottom bar is C46500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 1.1 to 20
18 to 50
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 77 to 140
280 to 380
Tensile Strength: Ultimate (UTS), MPa 120 to 240
380 to 610
Tensile Strength: Yield (Proof), MPa 46 to 220
190 to 490

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 660
900
Melting Onset (Solidus), °C 640
890
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
26
Electrical Conductivity: Equal Weight (Specific), % IACS 140
29

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
99 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
170 to 1170
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 12 to 24
13 to 21
Strength to Weight: Bending, points 20 to 31
15 to 20
Thermal Diffusivity, mm2/s 68
38
Thermal Shock Resistance, points 5.2 to 11
13 to 20

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Arsenic (As), % 0
0.020 to 0.060
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
59 to 62
Iron (Fe), % 0 to 0.7
0 to 0.1
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.6
0
Tin (Sn), % 0
0.5 to 1.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
36.2 to 40.5
Residuals, % 0
0 to 0.4