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3203 Aluminum vs. C37100 Brass

3203 aluminum belongs to the aluminum alloys classification, while C37100 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 3203 aluminum and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 4.5 to 29
8.0 to 40
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 72 to 120
260 to 300
Tensile Strength: Ultimate (UTS), MPa 110 to 200
370 to 520
Tensile Strength: Yield (Proof), MPa 39 to 190
150 to 390

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 650
900
Melting Onset (Solidus), °C 620
890
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
30

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
23
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
38 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
110 to 750
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 11 to 20
13 to 18
Strength to Weight: Bending, points 19 to 28
14 to 18
Thermal Diffusivity, mm2/s 70
39
Thermal Shock Resistance, points 4.9 to 8.8
12 to 17

Alloy Composition

Aluminum (Al), % 96.9 to 99
0
Copper (Cu), % 0 to 0.050
58 to 62
Iron (Fe), % 0 to 0.7
0 to 0.15
Lead (Pb), % 0
0.6 to 1.2
Manganese (Mn), % 1.0 to 1.5
0
Silicon (Si), % 0 to 0.6
0
Zinc (Zn), % 0 to 0.1
36.3 to 41.4
Residuals, % 0
0 to 0.4