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C68700 Brass vs. EN AC-48000 Aluminum

C68700 brass belongs to the copper alloys classification, while EN AC-48000 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 C68700 brass and the bottom bar is EN AC-48000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
28
Tensile Strength: Ultimate (UTS), MPa 390
220 to 310
Tensile Strength: Yield (Proof), MPa 140
210 to 270

Thermal Properties

Latent Heat of Fusion, J/g 190
570
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 970
600
Melting Onset (Solidus), °C 930
560
Specific Heat Capacity, J/kg-K 400
890
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
33
Electrical Conductivity: Equal Weight (Specific), % IACS 25
110

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 8.3
2.7
Embodied Carbon, kg CO2/kg material 2.8
7.9
Embodied Energy, MJ/kg 46
140
Embodied Water, L/kg 340
1030

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
300 to 510
Stiffness to Weight: Axial, points 7.3
15
Stiffness to Weight: Bending, points 19
53
Strength to Weight: Axial, points 13
23 to 33
Strength to Weight: Bending, points 14
31 to 39
Thermal Diffusivity, mm2/s 30
54
Thermal Shock Resistance, points 13
10 to 15

Alloy Composition


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Aluminum (Al), % 1.8 to 2.5
80.4 to 87.2
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
0.8 to 1.5
Iron (Fe), % 0 to 0.060
0 to 0.7
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
0.8 to 1.5
Manganese (Mn), % 0
0 to 0.35
Nickel (Ni), % 0
0.7 to 1.3
Silicon (Si), % 0
10.5 to 13.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 17.8 to 22.2
0 to 0.35
Residuals, % 0 to 0.5
0 to 0.15