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C87900 Brass vs. B390.0 Aluminum

C87900 brass belongs to the copper alloys classification, while B390.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 C87900 brass and the bottom bar is B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
76
Elongation at Break, % 25
0.88
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
29
Tensile Strength: Ultimate (UTS), MPa 480
320
Tensile Strength: Yield (Proof), MPa 240
250

Thermal Properties

Latent Heat of Fusion, J/g 190
640
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 930
580
Melting Onset (Solidus), °C 900
580
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
27
Electrical Conductivity: Equal Weight (Specific), % IACS 17
88

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 2.7
7.3
Embodied Energy, MJ/kg 46
130
Embodied Water, L/kg 320
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 270
410
Stiffness to Weight: Axial, points 7.3
15
Stiffness to Weight: Bending, points 20
51
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 17
38
Thermal Diffusivity, mm2/s 37
55
Thermal Shock Resistance, points 16
15

Alloy Composition


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Aluminum (Al), % 0 to 0.15
72.7 to 79.6
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
4.0 to 5.0
Iron (Fe), % 0 to 0.4
0 to 1.3
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0 to 0.15
0 to 0.5
Nickel (Ni), % 0 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
16 to 18
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 30 to 36
0 to 1.5
Residuals, % 0
0 to 0.2