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7050-T7452 Aluminum

7050-T7452 aluminum is 7050 aluminum in the T7452 temper. To achieve this temper, the metal is solution heat-treated, stress relieved, then stabilized by artificial overaging. The stress relief is accomplished by compressing the metal by 1-5%. The degree of overaging is chosen so as to strike an effective balance between tensile strength, stress corrosion resistance, exfoliation corrosion resistance, and fracture toughness.

It has the lowest strength and lowest ductility compared to the other variants of 7050 aluminum.

The graph bars on the material properties cards below compare 7050-T7452 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

2.2 %

Fatigue Strength

130 MPa 20 x 103 psi

Poisson's Ratio


Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

280 MPa 41 x 103 psi

Tensile Strength: Ultimate (UTS)

490 MPa 71 x 103 psi

Tensile Strength: Yield (Proof)

390 MPa 57 x 103 psi

Thermal Properties

Latent Heat of Fusion

370 J/g

Maximum Temperature: Mechanical

190 °C 380 °F

Melting Completion (Liquidus)

630 °C 1170 °F

Melting Onset (Solidus)

490 °C 910 °F

Specific Heat Capacity

860 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

140 W/m-K 82 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

35 % IACS

Electrical Conductivity: Equal Weight (Specific)

100 % IACS

Otherwise Unclassified Properties

Base Metal Price

10 % relative


3.1 g/cm3 190 lb/ft3

Embodied Carbon

8.2 kg CO2/kg material

Embodied Energy

150 MJ/kg 63 x 103 BTU/lb

Embodied Water

1120 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

10 MJ/m3

Resilience: Unit (Modulus of Resilience)

1110 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

45 points

Strength to Weight: Axial

45 points

Strength to Weight: Bending

45 points

Thermal Diffusivity

54 mm2/s

Thermal Shock Resistance

21 points

Alloy Composition

Aluminum (Al) 87.3 to 92.1
Zinc (Zn) 5.7 to 6.7
Copper (Cu) 2.0 to 2.6
Magnesium (Mg) 1.9 to 2.6
Zirconium (Zr) 0.080 to 0.15
Iron (Fe) 0 to 0.15
Silicon (Si) 0 to 0.12
Manganese (Mn) 0 to 0.1
Titanium (Ti) 0 to 0.060
Chromium (Cr) 0 to 0.040
Residuals 0 to 0.15

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

Followup Questions

Further Reading

ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

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