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C66900 Brass vs. 242.0 Aluminum

C66900 brass belongs to the copper alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
73
Elongation at Break, % 1.1 to 26
0.5 to 1.5
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
27
Shear Strength, MPa 290 to 440
150 to 240
Tensile Strength: Ultimate (UTS), MPa 460 to 770
180 to 290
Tensile Strength: Yield (Proof), MPa 330 to 760
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 190
390
Maximum Temperature: Mechanical, °C 150
210
Melting Completion (Liquidus), °C 860
640
Melting Onset (Solidus), °C 850
530
Specific Heat Capacity, J/kg-K 400
870
Thermal Expansion, µm/m-K 20
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 8.2
3.1
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 310
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
110 to 340
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 20
45
Strength to Weight: Axial, points 15 to 26
16 to 26
Strength to Weight: Bending, points 16 to 23
23 to 32
Thermal Shock Resistance, points 14 to 23
8.0 to 13

Alloy Composition

Aluminum (Al), % 0
88.4 to 93.6
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 62.5 to 64.5
3.5 to 4.5
Iron (Fe), % 0 to 0.25
0 to 1.0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 11.5 to 12.5
0 to 0.35
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0
0 to 0.7
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 22.5 to 26
0 to 0.35
Residuals, % 0
0 to 0.15