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A390.0 Aluminum vs. C21000 Brass

A390.0 aluminum belongs to the aluminum alloys classification, while C21000 brass belongs to the copper alloys. There are 28 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 A390.0 aluminum and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
110
Elongation at Break, % 0.87 to 0.91
2.9 to 50
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
43
Tensile Strength: Ultimate (UTS), MPa 190 to 290
240 to 450
Tensile Strength: Yield (Proof), MPa 190 to 290
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 640
200
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 580
1070
Melting Onset (Solidus), °C 480
1050
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
56
Electrical Conductivity: Equal Weight (Specific), % IACS 67
57

Otherwise Unclassified Properties

Base Metal Price, % relative 11
30
Density, g/cm3 2.7
8.8
Embodied Carbon, kg CO2/kg material 7.3
2.6
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 950
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
21 to 830
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 52
18
Strength to Weight: Axial, points 19 to 30
7.4 to 14
Strength to Weight: Bending, points 27 to 36
9.6 to 15
Thermal Diffusivity, mm2/s 56
69
Thermal Shock Resistance, points 9.0 to 14
8.1 to 15

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Copper (Cu), % 4.0 to 5.0
94 to 96
Iron (Fe), % 0 to 0.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 16 to 18
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
3.7 to 6.0
Residuals, % 0
0 to 0.2