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7049 Aluminum vs. CC763S Brass

7049 aluminum belongs to the aluminum alloys classification, while CC763S 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 7049 aluminum and the bottom bar is CC763S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130
Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.2 to 7.0
7.3
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 510 to 530
490
Tensile Strength: Yield (Proof), MPa 420 to 450
270

Thermal Properties

Latent Heat of Fusion, J/g 370
190
Maximum Temperature: Mechanical, °C 180
140
Melting Completion (Liquidus), °C 640
870
Melting Onset (Solidus), °C 480
830
Specific Heat Capacity, J/kg-K 860
400
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
29
Electrical Conductivity: Equal Weight (Specific), % IACS 110
32

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.9
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 1110
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
30
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
340
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 46 to 47
17
Strength to Weight: Bending, points 46 to 47
17
Thermal Shock Resistance, points 22 to 23
16

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
1.0 to 2.5
Antimony (Sb), % 0
0 to 0.080
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
56.5 to 67
Iron (Fe), % 0 to 0.35
0.5 to 2.0
Lead (Pb), % 0
0 to 1.5
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
1.0 to 3.5
Nickel (Ni), % 0
0 to 2.5
Silicon (Si), % 0 to 0.25
0 to 1.0
Tin (Sn), % 0
0 to 1.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
18.9 to 41
Residuals, % 0 to 0.15
0