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C66900 Brass vs. 6101A Aluminum

C66900 brass belongs to the copper alloys classification, while 6101A aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 C66900 brass and the bottom bar is 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 1.1 to 26
11
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
26
Shear Strength, MPa 290 to 440
130
Tensile Strength: Ultimate (UTS), MPa 460 to 770
220
Tensile Strength: Yield (Proof), MPa 330 to 760
190

Thermal Properties

Latent Heat of Fusion, J/g 190
400
Maximum Temperature: Mechanical, °C 150
160
Melting Completion (Liquidus), °C 860
640
Melting Onset (Solidus), °C 850
630
Specific Heat Capacity, J/kg-K 400
900
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
55
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
180

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 310
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
24
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
280
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 20
51
Strength to Weight: Axial, points 15 to 26
23
Strength to Weight: Bending, points 16 to 23
30
Thermal Shock Resistance, points 14 to 23
10

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.3
Copper (Cu), % 62.5 to 64.5
0 to 0.050
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 11.5 to 12.5
0
Silicon (Si), % 0
0.3 to 0.7
Zinc (Zn), % 22.5 to 26
0
Residuals, % 0
0 to 0.1