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7049A Aluminum vs. 7175 Aluminum

Both 7049A aluminum and 7175 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 7049A aluminum and the bottom bar is 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 5.0 to 5.7
3.8 to 5.9
Fatigue Strength, MPa 180
150 to 180
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 340 to 350
290 to 330
Tensile Strength: Ultimate (UTS), MPa 580 to 590
520 to 570
Tensile Strength: Yield (Proof), MPa 500 to 530
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 370
380
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 430
480
Specific Heat Capacity, J/kg-K 850
870
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
1310 to 1730
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
46
Strength to Weight: Axial, points 52 to 53
48 to 52
Strength to Weight: Bending, points 50 to 51
48 to 51
Thermal Diffusivity, mm2/s 50
53
Thermal Shock Resistance, points 25
23 to 25

Alloy Composition


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Aluminum (Al), % 84.6 to 89.5
88 to 91.4
Chromium (Cr), % 0.050 to 0.25
0.18 to 0.28
Copper (Cu), % 1.2 to 1.9
1.2 to 2.0
Iron (Fe), % 0 to 0.5
0 to 0.2
Magnesium (Mg), % 2.1 to 3.1
2.1 to 2.9
Manganese (Mn), % 0 to 0.5
0 to 0.1
Silicon (Si), % 0 to 0.4
0 to 0.15
Titanium (Ti), % 0 to 0.25
0 to 0.1
Zinc (Zn), % 7.2 to 8.4
5.1 to 6.1
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.15