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7076 Aluminum vs. C87500 Brass

7076 aluminum belongs to the aluminum alloys classification, while C87500 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 7076 aluminum and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.2
18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
42
Tensile Strength: Ultimate (UTS), MPa 530
460
Tensile Strength: Yield (Proof), MPa 460
190

Thermal Properties

Latent Heat of Fusion, J/g 380
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 630
920
Melting Onset (Solidus), °C 460
820
Specific Heat Capacity, J/kg-K 860
410
Thermal Conductivity, W/m-K 140
28
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 100
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
27
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1110
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
67
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
160
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 49
16
Strength to Weight: Bending, points 48
16
Thermal Diffusivity, mm2/s 54
8.3
Thermal Shock Resistance, points 23
17

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0 to 0.5
Copper (Cu), % 0.3 to 1.0
79 to 85
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.4
3.0 to 5.0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
12 to 16
Residuals, % 0
0 to 0.5