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6070-T62 Aluminum

6070-T62 aluminum is 6070 aluminum in the T62 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. Unlike T6 temper, this is done by the receiver rather than the supplier.

The graph bars on the material properties cards below compare 6070-T62 aluminum to: 6000-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

70 GPa 10 x 106 psi

Elongation at Break

5.6 %

Fatigue Strength

130 MPa 18 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

220 MPa 31 x 103 psi

Tensile Strength: Ultimate (UTS)

370 MPa 54 x 103 psi

Tensile Strength: Yield (Proof)

350 MPa 51 x 103 psi

Thermal Properties

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

160 °C 320 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

570 °C 1050 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

160 W/m-K 93 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

41 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1170 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

20 MJ/m3

Resilience: Unit (Modulus of Resilience)

900 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

38 points

Strength to Weight: Bending

42 points

Thermal Diffusivity

65 mm2/s

Thermal Shock Resistance

16 points

Alloy Composition

Aluminum (Al)Al 94.6 to 98
Silicon (Si)Si 1.0 to 1.7
Magnesium (Mg)Mg 0.5 to 1.2
Manganese (Mn)Mn 0.4 to 1.0
Copper (Cu)Cu 0.15 to 0.4
Iron (Fe)Fe 0 to 0.5
Zinc (Zn)Zn 0 to 0.25
Titanium (Ti)Ti 0 to 0.15
Chromium (Cr)Cr 0 to 0.1
Residualsres. 0 to 0.15

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

Followup Questions

Further Reading

ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

Aluminum Standards and Data, Aluminum Association Inc., 2013

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015