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C43400 Brass vs. 3103 Aluminum

C43400 brass belongs to the copper alloys classification, while 3103 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C43400 brass and the bottom bar is 3103 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 3.0 to 49
1.1 to 28
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
26
Shear Strength, MPa 250 to 390
68 to 130
Tensile Strength: Ultimate (UTS), MPa 310 to 690
100 to 220
Tensile Strength: Yield (Proof), MPa 110 to 560
39 to 200

Thermal Properties

Latent Heat of Fusion, J/g 190
400
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 1020
660
Melting Onset (Solidus), °C 990
640
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 140
160
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
42
Electrical Conductivity: Equal Weight (Specific), % IACS 32
140

Otherwise Unclassified Properties

Base Metal Price, % relative 28
9.5
Density, g/cm3 8.6
2.8
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 320
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 57 to 1420
11 to 280
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 10 to 22
10 to 22
Strength to Weight: Bending, points 12 to 20
18 to 30
Thermal Diffusivity, mm2/s 41
64
Thermal Shock Resistance, points 11 to 24
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 0
96.3 to 99.1
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 84 to 87
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.7
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0
0.9 to 1.5
Silicon (Si), % 0
0 to 0.5
Tin (Sn), % 0.4 to 1.0
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 11.4 to 15.6
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15