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6105 Aluminum vs. C99400 Brass

6105 aluminum belongs to the aluminum alloys classification, while C99400 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 190 to 280
460 to 550
Tensile Strength: Yield (Proof), MPa 120 to 270
230 to 370

Thermal Properties

Latent Heat of Fusion, J/g 410
230
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 600
1020
Specific Heat Capacity, J/kg-K 900
400
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46 to 50
17
Electrical Conductivity: Equal Weight (Specific), % IACS 150 to 170
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
230 to 590
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 51
19
Strength to Weight: Axial, points 20 to 29
15 to 17
Strength to Weight: Bending, points 28 to 35
15 to 17
Thermal Shock Resistance, points 8.6 to 12
16 to 19

Alloy Composition

Aluminum (Al), % 97.2 to 99
0.5 to 2.0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
83.5 to 96.5
Iron (Fe), % 0 to 0.35
1.0 to 3.0
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 0
1.0 to 3.5
Silicon (Si), % 0.6 to 1.0
0.5 to 2.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0.5 to 5.0
Residuals, % 0
0 to 0.3