MakeItFrom.com
Menu (ESC)

7108A-T6 Aluminum

7108A-T6 aluminum is 7108A aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare 7108A-T6 aluminum to: 7000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

69 GPa 10 x 106 psi

Elongation at Break

13 %

Fatigue Strength

130 MPa 19 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

210 MPa 30 x 103 psi

Tensile Strength: Ultimate (UTS)

350 MPa 50 x 103 psi

Tensile Strength: Yield (Proof)

300 MPa 43 x 103 psi

Thermal Properties

Latent Heat of Fusion

380 J/g

Maximum Temperature: Mechanical

210 °C 410 °F

Melting Completion (Liquidus)

630 °C 1170 °F

Melting Onset (Solidus)

520 °C 970 °F

Specific Heat Capacity

870 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

150 W/m-K 86 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

36 % IACS

Electrical Conductivity: Equal Weight (Specific)

110 % IACS

Otherwise Unclassified Properties

Base Metal Price

10 % relative

Density

2.9 g/cm3 180 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1150 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

44 MJ/m3

Resilience: Unit (Modulus of Resilience)

640 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

47 points

Strength to Weight: Axial

33 points

Strength to Weight: Bending

38 points

Thermal Diffusivity

59 mm2/s

Thermal Shock Resistance

15 points

Alloy Composition

Aluminum (Al)Al 91.6 to 94.4
Zinc (Zn)Zn 4.8 to 5.8
Magnesium (Mg)Mg 0.7 to 1.5
Zirconium (Zr)Zr 0.15 to 0.25
Iron (Fe)Fe 0 to 0.3
Silicon (Si)Si 0 to 0.2
Manganese (Mn)Mn 0 to 0.050
Copper (Cu)Cu 0 to 0.050
Chromium (Cr)Cr 0 to 0.040
Titanium (Ti)Ti 0 to 0.030
Gallium (Ga)Ga 0 to 0.030
Residualsres. 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Further Reading

Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003

Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products