Aluminum 7050-T7451 (7050-T73651)


Subcategory: 7000 Series Aluminum Alloy; Aluminum Alloy; Metal; Nonferrous Metal

Close Analogs:

Composition Notes:
Aluminum content reported is calculated as remainder.
Composition information provided by the Aluminum Association and is not for design.

Key Words: AA7050-T7451; AA7070-T73651, UNS A97050; ISO AlZn6CuMgZr; Aluminium 7050-T7451; Aluminium 7070-T73651

Component   Wt. %
Al87.3 - 90.3 
CrMax 0.04 
Cu2 - 2.6 
FeMax 0.15 
Component   Wt. %
Mg1.9 - 2.6 
MnMax 0.1 
Other, eachMax 0.05 
Other, totalMax 0.15 
Component   Wt. %
SiMax 0.12 
TiMax 0.06 
Zn5.7 - 6.7 
Zr0.08 - 0.15 

Material Notes:
Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Physical PropertiesMetricEnglishComments
Density2.83 g/cc0.102 lb/in AA; Typical

Mechanical Properties
Hardness, Brinell140140 500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop177177 Converted from Brinell Hardness Value
Hardness, Rockwell A51.651.6 Converted from Brinell Hardness Value
Hardness, Rockwell B8484 Converted from Brinell Hardness Value
Hardness, Vickers162162 Converted from Brinell Hardness Value
Ultimate Tensile Strength524 MPa76000 psi AA; Typical
Tensile Yield Strength469 MPa68000 psi AA; Typical
Elongation at Break11 %11 % AA; Typical; 1/2 in. (12.7 mm) Diameter
Modulus of Elasticity71.7 GPa10400 ksi AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poisson's Ratio0.330.33 
Fracture Toughness28 MPa-m25.5 ksi-in K(IC) in S-L Direction
Fracture Toughness31 MPa-m28.2 ksi-in K(IC) in T-L Direction
Fracture Toughness35 MPa-m31.9 ksi-in K(IC) in L-T Direction
Shear Modulus26.9 GPa3900 ksi 
Shear Strength303 MPa44000 psi AA; Typical

Electrical Properties
Electrical Resistivity4.3e-006 ohm-cm4.3e-006 ohm-cm 

Thermal Properties
CTE, linear 68F23 m/m-C12.8 in/in-F AA; Typical; Average over 68-212F range.
CTE, linear 250C25.4 m/m-C14.1 in/in-F Average over the range 20-300C
Specific Heat Capacity0.86 J/g-C0.206 BTU/lb-F 
Thermal Conductivity157 W/m-K1090 BTU-in/hr-ft-F 
Melting Point488 - 629 C910 - 1165 F AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater
Solidus488 C910 F AA; Typical
Liquidus629 C1165 F AA; Typical

Processing Properties
Annealing Temperature413 C775 F 
Solution Temperature477 C890 F 
Aging Temperature121 - 177 C250 - 350 F 

References for this datasheet.


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