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1070A Aluminum vs. CC765S Brass

1070A aluminum belongs to the aluminum alloys classification, while CC765S brass belongs to the copper alloys. There are 29 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 1070A aluminum and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
130
Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 2.3 to 33
21
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 68 to 140
540
Tensile Strength: Yield (Proof), MPa 17 to 120
220

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 640
860
Melting Onset (Solidus), °C 640
820
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 230
91
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
30
Electrical Conductivity: Equal Weight (Specific), % IACS 200
34

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
24
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.2
3.0
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1200
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
90
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
220
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 7.0 to 14
19
Strength to Weight: Bending, points 14 to 22
18
Thermal Diffusivity, mm2/s 94
28
Thermal Shock Resistance, points 3.1 to 6.3
17

Alloy Composition

Aluminum (Al), % 99.7 to 100
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Copper (Cu), % 0 to 0.030
51 to 65
Iron (Fe), % 0 to 0.25
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0.3 to 3.0
Nickel (Ni), % 0
0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.1
Tin (Sn), % 0
0 to 1.0
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.070
19.8 to 47.7