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3004 Aluminum vs. C42600 Brass

3004 aluminum belongs to the aluminum alloys classification, while C42600 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 3004 aluminum and the bottom bar is C42600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.1 to 19
1.1 to 40
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 100 to 180
280 to 470
Tensile Strength: Ultimate (UTS), MPa 170 to 310
410 to 830
Tensile Strength: Yield (Proof), MPa 68 to 270
220 to 810

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
1030
Melting Onset (Solidus), °C 630
1010
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
26

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.7
Embodied Carbon, kg CO2/kg material 8.3
2.9
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1180
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
9.4 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
230 to 2970
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 18 to 31
13 to 27
Strength to Weight: Bending, points 25 to 37
14 to 23
Thermal Diffusivity, mm2/s 65
33
Thermal Shock Resistance, points 7.6 to 13
15 to 29

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0
Copper (Cu), % 0 to 0.25
87 to 90
Iron (Fe), % 0 to 0.7
0.050 to 0.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 0
0.050 to 0.2
Phosphorus (P), % 0
0.020 to 0.050
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.25
5.3 to 10.4
Residuals, % 0
0 to 0.2