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3105 Aluminum vs. C26200 Brass

3105 aluminum belongs to the aluminum alloys classification, while C26200 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 C26200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 20
3.0 to 180
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
41
Shear Strength, MPa 77 to 140
230 to 390
Tensile Strength: Ultimate (UTS), MPa 120 to 240
330 to 770
Tensile Strength: Yield (Proof), MPa 46 to 220
110 to 490

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 180
140
Melting Completion (Liquidus), °C 660
950
Melting Onset (Solidus), °C 640
920
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
28
Electrical Conductivity: Equal Weight (Specific), % IACS 140
31

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
19 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
62 to 1110
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 12 to 24
11 to 26
Strength to Weight: Bending, points 20 to 31
13 to 23
Thermal Diffusivity, mm2/s 68
38
Thermal Shock Resistance, points 5.2 to 11
11 to 26

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
67 to 70
Iron (Fe), % 0 to 0.7
0 to 0.050
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
29.6 to 33
Residuals, % 0
0 to 0.3