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380.0 Aluminum vs. C68100 Brass

380.0 aluminum belongs to the aluminum alloys classification, while C68100 brass belongs to the copper alloys. There are 28 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 380.0 aluminum and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
100
Elongation at Break, % 3.0
29
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 28
40
Tensile Strength: Ultimate (UTS), MPa 320
380
Tensile Strength: Yield (Proof), MPa 160
140

Thermal Properties

Latent Heat of Fusion, J/g 510
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 590
890
Melting Onset (Solidus), °C 540
870
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 100
98
Thermal Expansion, µm/m-K 22
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
24
Electrical Conductivity: Equal Weight (Specific), % IACS 83
27

Otherwise Unclassified Properties

Base Metal Price, % relative 10
23
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
2.8
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 1040
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
86
Resilience: Unit (Modulus of Resilience), kJ/m3 170
94
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 48
20
Strength to Weight: Axial, points 31
13
Strength to Weight: Bending, points 36
15
Thermal Diffusivity, mm2/s 40
32
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0 to 0.010
Copper (Cu), % 3.0 to 4.0
56 to 60
Iron (Fe), % 0 to 2.0
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.010 to 0.5
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 7.5 to 9.5
0.040 to 0.15
Tin (Sn), % 0 to 0.35
0.75 to 1.1
Zinc (Zn), % 0 to 3.0
36.4 to 43
Residuals, % 0
0 to 0.5