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C84500 Brass vs. 3105 Aluminum

C84500 brass belongs to the copper alloys classification, while 3105 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 C84500 brass and the bottom bar is 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
29 to 67
Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 28
1.1 to 20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 240
120 to 240
Tensile Strength: Yield (Proof), MPa 97
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 180
400
Maximum Temperature: Mechanical, °C 150
180
Melting Completion (Liquidus), °C 980
660
Melting Onset (Solidus), °C 840
640
Specific Heat Capacity, J/kg-K 360
900
Thermal Conductivity, W/m-K 72
170
Thermal Expansion, µm/m-K 19
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
44
Electrical Conductivity: Equal Weight (Specific), % IACS 17
140

Otherwise Unclassified Properties

Base Metal Price, % relative 28
9.5
Density, g/cm3 8.7
2.8
Embodied Carbon, kg CO2/kg material 2.9
8.2
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 340
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 45
15 to 340
Stiffness to Weight: Axial, points 6.6
14
Stiffness to Weight: Bending, points 18
50
Strength to Weight: Axial, points 7.7
12 to 24
Strength to Weight: Bending, points 9.8
20 to 31
Thermal Diffusivity, mm2/s 23
68
Thermal Shock Resistance, points 8.6
5.2 to 11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
96 to 99.5
Antimony (Sb), % 0 to 0.25
0
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 77 to 79
0 to 0.3
Iron (Fe), % 0 to 0.4
0 to 0.7
Lead (Pb), % 6.0 to 7.5
0
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.0050
0 to 0.6
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 4.0
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 10 to 14
0 to 0.4
Residuals, % 0
0 to 0.15