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C66700 Brass vs. 444.0 Aluminum

C66700 brass belongs to the copper alloys classification, while 444.0 aluminum belongs to the aluminum alloys. There are 28 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 C66700 brass and the bottom bar is 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 2.0 to 58
25
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 340 to 690
190
Tensile Strength: Yield (Proof), MPa 100 to 640
83

Thermal Properties

Latent Heat of Fusion, J/g 180
500
Maximum Temperature: Mechanical, °C 140
170
Melting Completion (Liquidus), °C 1090
610
Melting Onset (Solidus), °C 1050
600
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 97
160
Thermal Expansion, µm/m-K 20
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
40
Electrical Conductivity: Equal Weight (Specific), % IACS 19
140

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 8.2
2.6
Embodied Carbon, kg CO2/kg material 2.7
7.9
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 150
39
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 1900
49
Stiffness to Weight: Axial, points 7.3
15
Stiffness to Weight: Bending, points 19
53
Strength to Weight: Axial, points 11 to 23
20
Strength to Weight: Bending, points 13 to 21
28
Thermal Diffusivity, mm2/s 30
67
Thermal Shock Resistance, points 11 to 23
8.8

Alloy Composition

Aluminum (Al), % 0
90.5 to 93.5
Copper (Cu), % 68.5 to 71.5
0 to 0.25
Iron (Fe), % 0 to 0.1
0 to 0.6
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.8 to 1.5
0 to 0.35
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 26.3 to 30.7
0 to 0.35
Residuals, % 0
0 to 0.15