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7005-T5 Aluminum

7005-T5 aluminum is 7005 aluminum in the T5 temper. To achieve this temper, the metal is artificially aged until it meets standard mechanical property requirements. It has the highest strength compared to the other variants of 7005 aluminum.

The graph bars on the material properties cards below compare 7005-T5 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

70 GPa 10 x 106 psi

Elongation at Break

15 %

Fatigue Strength

190 MPa 28 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

220 MPa 32 x 103 psi

Tensile Strength: Ultimate (UTS)

400 MPa 57 x 103 psi

Tensile Strength: Yield (Proof)

350 MPa 50 x 103 psi

Thermal Properties

Latent Heat of Fusion

380 J/g

Maximum Temperature: Mechanical

200 °C 400 °F

Melting Completion (Liquidus)

640 °C 1190 °F

Melting Onset (Solidus)

610 °C 1120 °F

Specific Heat Capacity

880 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

150 W/m-K 86 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

38 % IACS

Electrical Conductivity: Equal Weight (Specific)

120 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Calomel Potential

-850 mV

Density

2.9 g/cm3 180 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 65 x 103 BTU/lb

Embodied Water

1150 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

57 MJ/m3

Resilience: Unit (Modulus of Resilience)

850 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

47 points

Strength to Weight: Axial

38 points

Strength to Weight: Bending

41 points

Thermal Diffusivity

58 mm2/s

Thermal Shock Resistance

18 points

Alloy Composition

Aluminum (Al)Al 91 to 94.7
Zinc (Zn)Zn 4.0 to 5.0
Magnesium (Mg)Mg 1.0 to 1.8
Manganese (Mn)Mn 0.2 to 0.7
Iron (Fe)Fe 0 to 0.4
Silicon (Si)Si 0 to 0.35
Zirconium (Zr)Zr 0.080 to 0.2
Chromium (Cr)Cr 0.060 to 0.2
Copper (Cu)Cu 0 to 0.1
Titanium (Ti)Ti 0.010 to 0.060
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

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

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993