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3103 Aluminum vs. C87800 Brass

3103 aluminum belongs to the aluminum alloys classification, while C87800 brass belongs to the copper alloys. There are 28 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 3103 aluminum and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.1 to 28
25
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 100 to 220
590
Tensile Strength: Yield (Proof), MPa 39 to 200
350

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 660
920
Melting Onset (Solidus), °C 640
820
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 160
28
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
27
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
130
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 280
540
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 10 to 22
20
Strength to Weight: Bending, points 18 to 30
19
Thermal Diffusivity, mm2/s 64
8.3
Thermal Shock Resistance, points 4.6 to 9.9
21

Alloy Composition

Aluminum (Al), % 96.3 to 99.1
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
80 to 84.2
Iron (Fe), % 0 to 0.7
0 to 0.15
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0 to 0.3
0 to 0.010
Manganese (Mn), % 0.9 to 1.5
0 to 0.15
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.5
3.8 to 4.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
12 to 16
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0
0 to 0.5