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6061-T6 Aluminum vs. 7050 Aluminum

Both 6061-T6 aluminum and 7050 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 6061-T6 aluminum and the bottom bar is 7050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 10
2.2 to 12
Fatigue Strength, MPa 96
130 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 210
280 to 330
Tensile Strength: Ultimate (UTS), MPa 310
490 to 570
Tensile Strength: Yield (Proof), MPa 270
390 to 500

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 580
490
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 170
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
10 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 520
1110 to 1760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 31
45 to 51
Strength to Weight: Bending, points 37
45 to 50
Thermal Diffusivity, mm2/s 68
54
Thermal Shock Resistance, points 14
21 to 25

Alloy Composition


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Aluminum (Al), % 95.9 to 98.6
87.3 to 92.1
Chromium (Cr), % 0.040 to 0.35
0 to 0.040
Copper (Cu), % 0.15 to 0.4
2.0 to 2.6
Iron (Fe), % 0 to 0.7
0 to 0.15
Magnesium (Mg), % 0.8 to 1.2
1.9 to 2.6
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 0.4 to 0.8
0 to 0.12
Titanium (Ti), % 0 to 0.15
0 to 0.060
Zinc (Zn), % 0 to 0.25
5.7 to 6.7
Zirconium (Zr), % 0
0.080 to 0.15
Residuals, % 0 to 0.15
0 to 0.15