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A380.0 Aluminum vs. C21000 Brass

A380.0 aluminum belongs to the aluminum alloys classification, while C21000 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 3.3
2.9 to 50
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Shear Strength, MPa 190
180 to 280
Tensile Strength: Ultimate (UTS), MPa 290
240 to 450
Tensile Strength: Yield (Proof), MPa 160
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 510
200
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 590
1070
Melting Onset (Solidus), °C 550
1050
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 96
230
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
56
Electrical Conductivity: Equal Weight (Specific), % IACS 78
57

Otherwise Unclassified Properties

Base Metal Price, % relative 11
30
Density, g/cm3 2.9
8.8
Embodied Carbon, kg CO2/kg material 7.5
2.6
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 1040
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 180
21 to 830
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 48
18
Strength to Weight: Axial, points 28
7.4 to 14
Strength to Weight: Bending, points 34
9.6 to 15
Thermal Diffusivity, mm2/s 38
69
Thermal Shock Resistance, points 13
8.1 to 15

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Copper (Cu), % 3.0 to 4.0
94 to 96
Iron (Fe), % 0 to 1.3
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 7.5 to 9.5
0
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
3.7 to 6.0
Residuals, % 0
0 to 0.2