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7076 Aluminum vs. C38000 Brass

7076 aluminum belongs to the aluminum alloys classification, while C38000 brass belongs to the copper alloys. There are 27 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 7076 aluminum and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 6.2
17
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 27
39
Shear Strength, MPa 310
230
Tensile Strength: Ultimate (UTS), MPa 530
380
Tensile Strength: Yield (Proof), MPa 460
120

Thermal Properties

Latent Heat of Fusion, J/g 380
170
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 630
800
Melting Onset (Solidus), °C 460
760
Specific Heat Capacity, J/kg-K 860
380
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
21

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1110
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
50
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
74
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 49
13
Strength to Weight: Bending, points 48
14
Thermal Diffusivity, mm2/s 54
37
Thermal Shock Resistance, points 23
13

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0 to 0.5
Copper (Cu), % 0.3 to 1.0
55 to 60
Iron (Fe), % 0 to 0.6
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.4
0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
35.9 to 43.5
Residuals, % 0
0 to 0.5