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3003 Aluminum vs. C37700 Brass

3003 aluminum belongs to the aluminum alloys classification, while C37700 brass belongs to the copper 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 3003 aluminum and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 1.1 to 28
40
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
39
Shear Strength, MPa 68 to 130
270
Tensile Strength: Ultimate (UTS), MPa 110 to 240
400
Tensile Strength: Yield (Proof), MPa 40 to 210
160

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 650
890
Melting Onset (Solidus), °C 640
880
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 180
120
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
30

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.95 to 63
130
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 300
120
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 11 to 24
14
Strength to Weight: Bending, points 18 to 30
15
Thermal Diffusivity, mm2/s 71
39
Thermal Shock Resistance, points 4.7 to 10
13

Alloy Composition

Aluminum (Al), % 96.8 to 99
0
Copper (Cu), % 0.050 to 0.2
58 to 61
Iron (Fe), % 0 to 0.7
0 to 0.3
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 1.0 to 1.5
0
Silicon (Si), % 0 to 0.6
0
Zinc (Zn), % 0 to 0.1
35.7 to 40.5
Residuals, % 0
0 to 0.5