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7050 Aluminum vs. 6261 Aluminum

Both 7050 aluminum and 6261 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is 7050 aluminum and the bottom bar is 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 2.2 to 12
9.0 to 16
Fatigue Strength, MPa 130 to 210
60 to 120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 280 to 330
90 to 180
Tensile Strength: Ultimate (UTS), MPa 490 to 570
150 to 300
Tensile Strength: Yield (Proof), MPa 390 to 500
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 490
610
Specific Heat Capacity, J/kg-K 860
900
Thermal Conductivity, W/m-K 140
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
48
Electrical Conductivity: Equal Weight (Specific), % IACS 100
160

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
77 to 500
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
50
Strength to Weight: Axial, points 45 to 51
15 to 31
Strength to Weight: Bending, points 45 to 50
23 to 37
Thermal Diffusivity, mm2/s 54
75
Thermal Shock Resistance, points 21 to 25
6.5 to 13

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
96.6 to 98.6
Chromium (Cr), % 0 to 0.040
0 to 0.1
Copper (Cu), % 2.0 to 2.6
0.15 to 0.4
Iron (Fe), % 0 to 0.15
0 to 0.4
Magnesium (Mg), % 1.9 to 2.6
0.7 to 1.0
Manganese (Mn), % 0 to 0.1
0.2 to 0.35
Silicon (Si), % 0 to 0.12
0.4 to 0.7
Titanium (Ti), % 0 to 0.060
0 to 0.1
Zinc (Zn), % 5.7 to 6.7
0 to 0.2
Zirconium (Zr), % 0.080 to 0.15
0
Residuals, % 0
0 to 0.15