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7050 Aluminum vs. C69710 Brass

7050 aluminum belongs to the aluminum alloys classification, while C69710 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 7050 aluminum and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 2.2 to 12
25
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 280 to 330
300
Tensile Strength: Ultimate (UTS), MPa 490 to 570
470
Tensile Strength: Yield (Proof), MPa 390 to 500
230

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 630
930
Melting Onset (Solidus), °C 490
880
Specific Heat Capacity, J/kg-K 860
400
Thermal Conductivity, W/m-K 140
40
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 3.1
8.3
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1120
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
99
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
250
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 45 to 51
16
Strength to Weight: Bending, points 45 to 50
16
Thermal Diffusivity, mm2/s 54
12
Thermal Shock Resistance, points 21 to 25
16

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
0
Arsenic (As), % 0
0.030 to 0.060
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 2.0 to 2.6
75 to 80
Iron (Fe), % 0 to 0.15
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 0.4
Silicon (Si), % 0 to 0.12
2.5 to 3.5
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
13.8 to 22
Zirconium (Zr), % 0.080 to 0.15
0
Residuals, % 0
0 to 0.5