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C38000 Brass vs. 6101 Aluminum

C38000 brass belongs to the copper alloys classification, while 6101 aluminum belongs to the aluminum alloys. There are 19 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 C38000 brass and the bottom bar is 6101 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
68
Elongation at Break, % 17
10 to 25
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
26

Thermal Properties

Latent Heat of Fusion, J/g 170
400
Maximum Temperature: Mechanical, °C 110
160
Melting Completion (Liquidus), °C 800
650
Melting Onset (Solidus), °C 760
620
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 110
220 to 230
Thermal Expansion, µm/m-K 21
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1190

Common Calculations

Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
50
Thermal Diffusivity, mm2/s 37
89 to 93

Alloy Composition

Aluminum (Al), % 0 to 0.5
97.6 to 99.4
Boron (B), % 0
0 to 0.060
Chromium (Cr), % 0
0 to 0.030
Copper (Cu), % 55 to 60
0 to 0.1
Iron (Fe), % 0 to 0.35
0 to 0.5
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
0.35 to 0.8
Manganese (Mn), % 0
0 to 0.030
Silicon (Si), % 0
0.3 to 0.7
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 0.1
Residuals, % 0
0 to 0.1