Aluminum 7475-T7651


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: UNS A97475; ISO AlZn5.5MgCu(A); Aluminium 7475-T7651; AA7475-T7651

Component   Wt. %
Al88.5 - 91.5 
Cr0.18 - 0.25 
Cu1.2 - 1.9 
FeMax 0.12 
Component   Wt. %
Mg1.9 - 2.6 
MnMax 0.06 
Other, eachMax 0.05 
Other, totalMax 0.15 
Component   Wt. %
SiMax 0.1 
TiMax 0.06 
Zn5.2 - 6.2 

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

Physical PropertiesMetricEnglishComments
Density2.81 g/cc0.102 lb/in³ 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 Strength531 MPa77000 psi AA; Typical
Tensile Yield Strength462 MPa67000 psi AA; Typical
Elongation at Break12 %12 % 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 
Machinability70 %70 % 0-100 Scale of Aluminum Alloys
Shear Modulus27 GPa3920 ksi 
Shear Strength310 MPa45000 psi Calculated value.

Electrical Properties
Electrical Resistivity4.31e-006 ohm-cm4.31e-006 ohm-cm 

Thermal Properties
CTE, linear 68°F23.2 µm/m-°C12.9 µin/in-°F AA; Typical; Average over 68-212°F range.
CTE, linear 250°C25.2 µm/m-°C14 µin/in-°F Average over the range 20-300ºC
Specific Heat Capacity0.88 J/g-°C0.21 BTU/lb-°F Estimated from trends in similar Al alloys.
Thermal Conductivity163 W/m-K1130 BTU-in/hr-ft²-°F 
Melting Point477 - 635 °C890 - 1175 °F AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater
Solidus477 °C890 °F AA; Typical
Liquidus635 °C1175 °F AA; Typical

Processing Properties
Annealing Temperature413 °C775 °F 
Solution Temperature516 °C960 °F must be preceded by soak at 870 to 890°F
Aging Temperature121 - 177 °C250 - 350 °F 

References for this datasheet.


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