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C38000 Brass vs. 8079 Aluminum

C38000 brass belongs to the copper alloys classification, while 8079 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 C38000 brass and the bottom bar is 8079 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 17
2.2
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 380
150
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 170
400
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 800
650
Melting Onset (Solidus), °C 760
640
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 110
230
Thermal Expansion, µm/m-K 21
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.0
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 74
110
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 13
15
Strength to Weight: Bending, points 14
22
Thermal Diffusivity, mm2/s 37
92
Thermal Shock Resistance, points 13
6.4

Alloy Composition

Aluminum (Al), % 0 to 0.5
98.1 to 99.3
Copper (Cu), % 55 to 60
0 to 0.050
Iron (Fe), % 0 to 0.35
0.7 to 1.3
Lead (Pb), % 1.5 to 2.5
0
Silicon (Si), % 0
0.050 to 0.3
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 0.1
Residuals, % 0
0 to 0.15