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6151 Aluminum vs. 7116 Aluminum

Both 6151 aluminum and 7116 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 6151 aluminum and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 1.1 to 5.7
7.8
Fatigue Strength, MPa 80 to 100
160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 200
220
Tensile Strength: Ultimate (UTS), MPa 330 to 340
370
Tensile Strength: Yield (Proof), MPa 270 to 280
330

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 590
520
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 170
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
46
Electrical Conductivity: Equal Weight (Specific), % IACS 150
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
28
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 34
35
Strength to Weight: Bending, points 39
39
Thermal Diffusivity, mm2/s 70
58
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
91.5 to 94.5
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 1.0
0 to 0.3
Magnesium (Mg), % 0.45 to 0.8
0.8 to 1.4
Manganese (Mn), % 0 to 0.2
0 to 0.050
Silicon (Si), % 0.6 to 1.2
0 to 0.15
Titanium (Ti), % 0 to 0.15
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.25
4.2 to 5.2
Residuals, % 0
0 to 0.15