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4343 Aluminum vs. C43500 Brass

4343 aluminum belongs to the aluminum alloys classification, while C43500 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 4343 aluminum and the bottom bar is C43500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 4.4
8.5 to 46
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
42
Shear Strength, MPa 64
220 to 310
Tensile Strength: Ultimate (UTS), MPa 110
320 to 530
Tensile Strength: Yield (Proof), MPa 62
120 to 480

Thermal Properties

Latent Heat of Fusion, J/g 510
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 620
1000
Melting Onset (Solidus), °C 580
970
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 180
120
Thermal Expansion, µm/m-K 22
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
28
Electrical Conductivity: Equal Weight (Specific), % IACS 150
30

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.6
8.5
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1100
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
44 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 27
65 to 1040
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 53
19
Strength to Weight: Axial, points 12
10 to 17
Strength to Weight: Bending, points 20
12 to 17
Thermal Diffusivity, mm2/s 77
37
Thermal Shock Resistance, points 5.2
11 to 18

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0
Copper (Cu), % 0 to 0.25
79 to 83
Iron (Fe), % 0 to 0.8
0 to 0.050
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 6.8 to 8.2
0
Tin (Sn), % 0
0.6 to 1.2
Zinc (Zn), % 0 to 0.2
15.4 to 20.4
Residuals, % 0
0 to 0.3