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4115 Aluminum vs. C43000 Brass

4115 aluminum belongs to the aluminum alloys classification, while C43000 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 4115 aluminum and the bottom bar is C43000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.1 to 11
3.0 to 55
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 71 to 130
230 to 410
Tensile Strength: Ultimate (UTS), MPa 120 to 220
320 to 710
Tensile Strength: Yield (Proof), MPa 39 to 190
130 to 550

Thermal Properties

Latent Heat of Fusion, J/g 420
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
1030
Melting Onset (Solidus), °C 590
1000
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 160
120
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
28

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.7
8.6
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.1 to 10
20 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 270
82 to 1350
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 12 to 23
10 to 23
Strength to Weight: Bending, points 20 to 30
12 to 20
Thermal Diffusivity, mm2/s 66
36
Thermal Shock Resistance, points 5.2 to 9.9
11 to 25

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
0
Copper (Cu), % 0.1 to 0.5
84 to 87
Iron (Fe), % 0 to 0.7
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0.6 to 1.2
0
Silicon (Si), % 1.8 to 2.2
0
Tin (Sn), % 0
1.7 to 2.7
Zinc (Zn), % 0 to 0.2
9.7 to 14.3
Residuals, % 0
0 to 0.5