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7049A Aluminum vs. C69710 Brass

7049A 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 7049A aluminum and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.0 to 5.7
25
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 340 to 350
300
Tensile Strength: Ultimate (UTS), MPa 580 to 590
470
Tensile Strength: Yield (Proof), MPa 500 to 530
230

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 640
930
Melting Onset (Solidus), °C 430
880
Specific Heat Capacity, J/kg-K 850
400
Thermal Conductivity, W/m-K 130
40
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
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 1100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
99
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
250
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 44
19
Strength to Weight: Axial, points 52 to 53
16
Strength to Weight: Bending, points 50 to 51
16
Thermal Diffusivity, mm2/s 50
12
Thermal Shock Resistance, points 25
16

Alloy Composition

Aluminum (Al), % 84.6 to 89.5
0
Arsenic (As), % 0
0.030 to 0.060
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
75 to 80
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 2.1 to 3.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.4
Silicon (Si), % 0 to 0.4
2.5 to 3.5
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
13.8 to 22
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.5