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6065 Aluminum vs. 7175 Aluminum

Both 6065 aluminum and 7175 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is 6065 aluminum and the bottom bar is 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 4.5 to 11
3.8 to 5.9
Fatigue Strength, MPa 96 to 110
150 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 230
290 to 330
Tensile Strength: Ultimate (UTS), MPa 310 to 400
520 to 570
Tensile Strength: Yield (Proof), MPa 270 to 380
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
480
Specific Heat Capacity, J/kg-K 890
870
Thermal Conductivity, W/m-K 170
140
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
33
Electrical Conductivity: Equal Weight (Specific), % IACS 140
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 8.4
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
1310 to 1730
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
46
Strength to Weight: Axial, points 31 to 40
48 to 52
Strength to Weight: Bending, points 36 to 43
48 to 51
Thermal Diffusivity, mm2/s 67
53
Thermal Shock Resistance, points 14 to 18
23 to 25

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
88 to 91.4
Bismuth (Bi), % 0.5 to 1.5
0
Chromium (Cr), % 0 to 0.15
0.18 to 0.28
Copper (Cu), % 0.15 to 0.4
1.2 to 2.0
Iron (Fe), % 0 to 0.7
0 to 0.2
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.8 to 1.2
2.1 to 2.9
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 0.4 to 0.8
0 to 0.15
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
5.1 to 6.1
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.15