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7049A Aluminum vs. C49300 Brass

7049A aluminum belongs to the aluminum alloys classification, while C49300 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 C49300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 5.0 to 5.7
4.5 to 20
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 27
40
Shear Strength, MPa 340 to 350
270 to 290
Tensile Strength: Ultimate (UTS), MPa 580 to 590
430 to 520
Tensile Strength: Yield (Proof), MPa 500 to 530
210 to 410

Thermal Properties

Latent Heat of Fusion, J/g 370
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 640
880
Melting Onset (Solidus), °C 430
840
Specific Heat Capacity, J/kg-K 850
380
Thermal Conductivity, W/m-K 130
88
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
15
Electrical Conductivity: Equal Weight (Specific), % IACS 120
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.2
3.0
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1100
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
220 to 800
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 44
19
Strength to Weight: Axial, points 52 to 53
15 to 18
Strength to Weight: Bending, points 50 to 51
16 to 18
Thermal Diffusivity, mm2/s 50
29
Thermal Shock Resistance, points 25
14 to 18

Alloy Composition

Aluminum (Al), % 84.6 to 89.5
0 to 0.5
Antimony (Sb), % 0
0 to 0.5
Bismuth (Bi), % 0
0.5 to 2.0
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
58 to 62
Iron (Fe), % 0 to 0.5
0 to 0.1
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 2.1 to 3.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.030
Nickel (Ni), % 0
0 to 1.5
Phosphorus (P), % 0
0 to 0.2
Selenium (Se), % 0
0 to 0.2
Silicon (Si), % 0 to 0.4
0 to 0.1
Tin (Sn), % 0
1.0 to 1.8
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
30.6 to 40.5
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.5