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296.0-T6 Aluminum vs. 772.0-T6 Aluminum

Both 296.0-T6 aluminum and 772.0-T6 aluminum are aluminum alloys. Both are furnished in the T6 temper. They have a moderately high 92% of their average alloy composition in common. There are 29 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 296.0-T6 aluminum and the bottom bar is 772.0-T6 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
69
Elongation at Break, % 3.2
8.4
Fatigue Strength, MPa 70
94
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 270
320
Tensile Strength: Yield (Proof), MPa 180
250

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 630
630
Melting Onset (Solidus), °C 540
580
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
35
Electrical Conductivity: Equal Weight (Specific), % IACS 99
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 7.8
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6
25
Resilience: Unit (Modulus of Resilience), kJ/m3 220
430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 25
31
Strength to Weight: Bending, points 31
36
Thermal Diffusivity, mm2/s 51
58
Thermal Shock Resistance, points 12
14

Alloy Composition

Aluminum (Al), % 89 to 94
91.2 to 93.2
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Iron (Fe), % 0 to 1.2
0 to 0.15
Magnesium (Mg), % 0 to 0.050
0.6 to 0.8
Manganese (Mn), % 0 to 0.35
0 to 0.1
Nickel (Ni), % 0 to 0.35
0
Silicon (Si), % 2.0 to 3.0
0 to 0.15
Titanium (Ti), % 0 to 0.25
0.1 to 0.2
Zinc (Zn), % 0 to 0.5
6.0 to 7.0
Residuals, % 0
0 to 0.15