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A380.0 Aluminum vs. C85400 Brass

A380.0 aluminum belongs to the aluminum alloys classification, while C85400 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 A380.0 aluminum and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
55
Elastic (Young's, Tensile) Modulus, GPa 73
100
Elongation at Break, % 3.3
23
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 290
220
Tensile Strength: Yield (Proof), MPa 160
85

Thermal Properties

Latent Heat of Fusion, J/g 510
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 590
940
Melting Onset (Solidus), °C 550
940
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 96
89
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
20
Electrical Conductivity: Equal Weight (Specific), % IACS 78
22

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 7.5
2.8
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 1040
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
40
Resilience: Unit (Modulus of Resilience), kJ/m3 180
35
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 48
19
Strength to Weight: Axial, points 28
7.5
Strength to Weight: Bending, points 34
9.9
Thermal Diffusivity, mm2/s 38
28
Thermal Shock Resistance, points 13
7.6

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0 to 0.35
Copper (Cu), % 3.0 to 4.0
65 to 70
Iron (Fe), % 0 to 1.3
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Silicon (Si), % 7.5 to 9.5
0 to 0.050
Tin (Sn), % 0 to 0.35
0.5 to 1.5
Zinc (Zn), % 0 to 3.0
24 to 32
Residuals, % 0
0 to 1.1