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2095 Aluminum vs. CC761S Brass

2095 aluminum belongs to the aluminum alloys classification, while CC761S brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 2095 aluminum and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 8.5
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 700
540
Tensile Strength: Yield (Proof), MPa 610
340

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 660
960
Melting Onset (Solidus), °C 540
910
Specific Heat Capacity, J/kg-K 910
410
Thermal Conductivity, W/m-K 130
27
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
43

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.6
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 1470
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
41
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
530
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 65
18
Strength to Weight: Bending, points 59
18
Thermal Diffusivity, mm2/s 49
8.0
Thermal Shock Resistance, points 31
19

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 3.9 to 4.6
78 to 83
Iron (Fe), % 0 to 0.15
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.12
3.0 to 5.0
Silver (Ag), % 0.25 to 0.6
0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
8.9 to 19
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0 to 0.15
0