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7050 Aluminum vs. 6151 Aluminum

Both 7050 aluminum and 6151 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 6151 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 2.2 to 12
1.1 to 5.7
Fatigue Strength, MPa 130 to 210
80 to 100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 280 to 330
190 to 200
Tensile Strength: Ultimate (UTS), MPa 490 to 570
330 to 340
Tensile Strength: Yield (Proof), MPa 390 to 500
270 to 280

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 630
650
Melting Onset (Solidus), °C 490
590
Specific Heat Capacity, J/kg-K 860
900
Thermal Conductivity, W/m-K 140
170
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
45
Electrical Conductivity: Equal Weight (Specific), % IACS 100
150

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
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1120
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 55
3.5 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 1110 to 1760
520 to 580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
50
Strength to Weight: Axial, points 45 to 51
34
Strength to Weight: Bending, points 45 to 50
39
Thermal Diffusivity, mm2/s 54
70
Thermal Shock Resistance, points 21 to 25
15

Alloy Composition

Aluminum (Al), % 87.3 to 92.1
95.6 to 98.8
Chromium (Cr), % 0 to 0.040
0.15 to 0.35
Copper (Cu), % 2.0 to 2.6
0 to 0.35
Iron (Fe), % 0 to 0.15
0 to 1.0
Magnesium (Mg), % 1.9 to 2.6
0.45 to 0.8
Manganese (Mn), % 0 to 0.1
0 to 0.2
Silicon (Si), % 0 to 0.12
0.6 to 1.2
Titanium (Ti), % 0 to 0.060
0 to 0.15
Zinc (Zn), % 5.7 to 6.7
0 to 0.25
Zirconium (Zr), % 0.080 to 0.15
0
Residuals, % 0
0 to 0.15