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3105 Aluminum vs. C42600 Brass

3105 aluminum belongs to the aluminum alloys classification, while C42600 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 3105 aluminum and the bottom bar is C42600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 20
1.1 to 40
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 77 to 140
280 to 470
Tensile Strength: Ultimate (UTS), MPa 120 to 240
410 to 830
Tensile Strength: Yield (Proof), MPa 46 to 220
220 to 810

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 660
1030
Melting Onset (Solidus), °C 640
1010
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
26

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.7
Embodied Carbon, kg CO2/kg material 8.2
2.9
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1180
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
9.4 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
230 to 2970
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 12 to 24
13 to 27
Strength to Weight: Bending, points 20 to 31
14 to 23
Thermal Diffusivity, mm2/s 68
33
Thermal Shock Resistance, points 5.2 to 11
15 to 29

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
87 to 90
Iron (Fe), % 0 to 0.7
0.050 to 0.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0.050 to 0.2
Phosphorus (P), % 0
0.020 to 0.050
Silicon (Si), % 0 to 0.6
0
Tin (Sn), % 0
2.5 to 4.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
5.3 to 10.4
Residuals, % 0
0 to 0.2