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C23400 Brass vs. A390.0 Aluminum

C23400 brass belongs to the copper alloys classification, while A390.0 aluminum belongs to the aluminum alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 C23400 brass and the bottom bar is A390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
75
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
28
Tensile Strength: Ultimate (UTS), MPa 370 to 640
190 to 290

Thermal Properties

Latent Heat of Fusion, J/g 190
640
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 970
580
Melting Onset (Solidus), °C 930
480
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 19
20

Otherwise Unclassified Properties

Base Metal Price, % relative 27
11
Density, g/cm3 8.5
2.7
Embodied Carbon, kg CO2/kg material 2.6
7.3
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 320
950

Common Calculations

Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 19
52
Strength to Weight: Axial, points 12 to 21
19 to 30
Strength to Weight: Bending, points 13 to 19
27 to 36
Thermal Diffusivity, mm2/s 36
56
Thermal Shock Resistance, points 12 to 22
9.0 to 14

Alloy Composition

Aluminum (Al), % 0
75.3 to 79.6
Copper (Cu), % 81 to 84
4.0 to 5.0
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
16 to 18
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 15.7 to 19
0 to 0.1
Residuals, % 0
0 to 0.2