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C85400 Brass vs. 850.0 Aluminum

C85400 brass belongs to the copper alloys classification, while 850.0 aluminum belongs to the aluminum 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 C85400 brass and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
45
Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 23
7.9
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 220
140
Tensile Strength: Yield (Proof), MPa 85
76

Thermal Properties

Latent Heat of Fusion, J/g 180
380
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 940
650
Melting Onset (Solidus), °C 940
370
Specific Heat Capacity, J/kg-K 380
850
Thermal Conductivity, W/m-K 89
180
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
47
Electrical Conductivity: Equal Weight (Specific), % IACS 22
140

Otherwise Unclassified Properties

Base Metal Price, % relative 25
14
Density, g/cm3 8.3
3.1
Embodied Carbon, kg CO2/kg material 2.8
8.5
Embodied Energy, MJ/kg 46
160
Embodied Water, L/kg 330
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 35
42
Stiffness to Weight: Axial, points 7.0
12
Stiffness to Weight: Bending, points 19
44
Strength to Weight: Axial, points 7.5
12
Strength to Weight: Bending, points 9.9
19
Thermal Diffusivity, mm2/s 28
69
Thermal Shock Resistance, points 7.6
6.1

Alloy Composition

Aluminum (Al), % 0 to 0.35
88.3 to 93.1
Copper (Cu), % 65 to 70
0.7 to 1.3
Iron (Fe), % 0 to 0.7
0 to 0.7
Lead (Pb), % 1.5 to 3.8
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 1.0
0.7 to 1.3
Silicon (Si), % 0 to 0.050
0 to 0.7
Tin (Sn), % 0.5 to 1.5
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 24 to 32
0
Residuals, % 0
0 to 0.3