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7049A Aluminum vs. C23000 Brass

7049A aluminum belongs to the aluminum alloys classification, while C23000 brass belongs to the copper alloys. There are 29 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 7049A aluminum and the bottom bar is C23000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.0 to 5.7
2.9 to 47
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
42
Shear Strength, MPa 340 to 350
220 to 340
Tensile Strength: Ultimate (UTS), MPa 580 to 590
280 to 590
Tensile Strength: Yield (Proof), MPa 500 to 530
83 to 480

Thermal Properties

Latent Heat of Fusion, J/g 370
190
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 640
1030
Melting Onset (Solidus), °C 430
990
Specific Heat Capacity, J/kg-K 850
390
Thermal Conductivity, W/m-K 130
160
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
39

Otherwise Unclassified Properties

Base Metal Price, % relative 10
28
Density, g/cm3 3.1
8.6
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
6.2 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
31 to 1040
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 44
19
Strength to Weight: Axial, points 52 to 53
8.9 to 19
Strength to Weight: Bending, points 50 to 51
11 to 18
Thermal Diffusivity, mm2/s 50
48
Thermal Shock Resistance, points 25
9.4 to 20

Alloy Composition

Aluminum (Al), % 84.6 to 89.5
0
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
84 to 86
Iron (Fe), % 0 to 0.5
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.1 to 3.1
0
Manganese (Mn), % 0 to 0.5
0
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
13.7 to 16
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.2