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2095 Aluminum vs. C85700 Brass

2095 aluminum belongs to the aluminum alloys classification, while C85700 brass belongs to the copper alloys. There are 28 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 2095 aluminum and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 8.5
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 700
310
Tensile Strength: Yield (Proof), MPa 610
110

Thermal Properties

Latent Heat of Fusion, J/g 390
170
Maximum Temperature: Mechanical, °C 210
120
Melting Completion (Liquidus), °C 660
940
Melting Onset (Solidus), °C 540
910
Specific Heat Capacity, J/kg-K 910
380
Thermal Conductivity, W/m-K 130
84
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
22
Electrical Conductivity: Equal Weight (Specific), % IACS 110
25

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 8.6
2.8
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 1470
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
41
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
59
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 65
11
Strength to Weight: Bending, points 59
13
Thermal Diffusivity, mm2/s 49
27
Thermal Shock Resistance, points 31
10

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0 to 0.8
Copper (Cu), % 3.9 to 4.6
58 to 64
Iron (Fe), % 0 to 0.15
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0 to 0.12
0 to 0.050
Silver (Ag), % 0.25 to 0.6
0
Tin (Sn), % 0
0.5 to 1.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
32 to 40
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0
0 to 1.3