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C84800 Brass vs. 1085 Aluminum

C84800 brass belongs to the copper alloys classification, while 1085 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 C84800 brass and the bottom bar is 1085 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
68
Elongation at Break, % 18
4.5 to 39
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 230
73 to 140
Tensile Strength: Yield (Proof), MPa 100
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 180
400
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 950
640
Melting Onset (Solidus), °C 830
640
Specific Heat Capacity, J/kg-K 370
900
Thermal Conductivity, W/m-K 72
230
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
61
Electrical Conductivity: Equal Weight (Specific), % IACS 17
200

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.5
Density, g/cm3 8.6
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
160
Embodied Water, L/kg 340
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 53
2.1 to 110
Stiffness to Weight: Axial, points 6.6
14
Stiffness to Weight: Bending, points 18
50
Strength to Weight: Axial, points 7.3
7.5 to 14
Strength to Weight: Bending, points 9.6
14 to 22
Thermal Diffusivity, mm2/s 23
94
Thermal Shock Resistance, points 8.2
3.3 to 6.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
99.85 to 100
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 75 to 77
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.4
0 to 0.12
Lead (Pb), % 5.5 to 7.0
0
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0
0 to 0.020
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 13 to 17
0 to 0.030
Residuals, % 0
0 to 0.010