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6105 Aluminum vs. C43400 Brass

6105 aluminum belongs to the aluminum alloys classification, while C43400 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 6105 aluminum and the bottom bar is C43400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 9.0 to 16
3.0 to 49
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 120 to 170
250 to 390
Tensile Strength: Ultimate (UTS), MPa 190 to 280
310 to 690
Tensile Strength: Yield (Proof), MPa 120 to 270
110 to 560

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 650
1020
Melting Onset (Solidus), °C 600
990
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 180 to 190
140
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46 to 50
31
Electrical Conductivity: Equal Weight (Specific), % IACS 150 to 170
32

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.7
8.6
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
19 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
57 to 1420
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 51
19
Strength to Weight: Axial, points 20 to 29
10 to 22
Strength to Weight: Bending, points 28 to 35
12 to 20
Thermal Diffusivity, mm2/s 72 to 79
41
Thermal Shock Resistance, points 8.6 to 12
11 to 24

Alloy Composition

Aluminum (Al), % 97.2 to 99
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
84 to 87
Iron (Fe), % 0 to 0.35
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 0.6 to 1.0
0
Tin (Sn), % 0
0.4 to 1.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
11.4 to 15.6
Residuals, % 0
0 to 0.5