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7075-T6 Aluminum vs. 851.0-T6 Aluminum

Both 7075-T6 aluminum and 851.0-T6 aluminum are aluminum alloys. Both are furnished in the T6 temper. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is 7075-T6 aluminum and the bottom bar is 851.0-T6 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 7.9
9.1
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 560
140

Thermal Properties

Latent Heat of Fusion, J/g 380
410
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 480
360
Specific Heat Capacity, J/kg-K 870
850
Thermal Conductivity, W/m-K 130
180
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
46
Electrical Conductivity: Equal Weight (Specific), % IACS 98
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
14
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 51
13
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 50
69
Thermal Shock Resistance, points 24
6.3

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
86.6 to 91.5
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
0.7 to 1.3
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 2.1 to 2.9
0 to 0.1
Manganese (Mn), % 0 to 0.3
0 to 0.1
Nickel (Ni), % 0
0.3 to 0.7
Silicon (Si), % 0 to 0.4
2.0 to 3.0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 5.1 to 6.1
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.3