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2095 Aluminum vs. C85400 Brass

2095 aluminum belongs to the aluminum alloys classification, while C85400 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 C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 8.5
23
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 700
220
Tensile Strength: Yield (Proof), MPa 610
85

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 660
940
Melting Onset (Solidus), °C 540
940
Specific Heat Capacity, J/kg-K 910
380
Thermal Conductivity, W/m-K 130
89
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
20
Electrical Conductivity: Equal Weight (Specific), % IACS 110
22

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.6
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1470
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
40
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
35
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 65
7.5
Strength to Weight: Bending, points 59
9.9
Thermal Diffusivity, mm2/s 49
28
Thermal Shock Resistance, points 31
7.6

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0 to 0.35
Copper (Cu), % 3.9 to 4.6
65 to 70
Iron (Fe), % 0 to 0.15
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
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
24 to 32
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0
0 to 1.1