Aluminum 7475-T61

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-T61; AA7475-T61

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/in AA; Typical

Mechanical Properties
Hardness, Brinell148148 500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop188188 Converted from Brinell Hardness Value
Hardness, Rockwell A53.253.2 Converted from Brinell Hardness Value
Hardness, Rockwell B8787 Converted from Brinell Hardness Value
Hardness, Vickers173173 Converted from Brinell Hardness Value
Ultimate Tensile Strength565 MPa82000 psi AA; Typical
Tensile Yield Strength490 MPa71000 psi AA; Typical
Elongation at Break11 %11 % AA; Typical; 1/16 in. (1.6 mm) Thickness
Modulus of Elasticity70.3 GPa10200 ksi AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poisson's Ratio0.330.33 
Shear Modulus27 GPa3920 ksi 
Shear Strength330 MPa47900 psi Calculated value.

Electrical Properties
Electrical Resistivity4.99e-006 ohm-cm4.99e-006 ohm-cm AA; Typical at 68F

Thermal Properties
CTE, linear 68F23.2 m/m-C12.9 in/in-F AA; Typical; Average over 68-212F range.
CTE, linear 250C25.2 m/m-C14 in/in-F Average over the range 20-300C
Specific Heat Capacity0.88 J/g-C0.21 BTU/lb-F Estimated from trends in similar Al alloys.
Thermal Conductivity138 W/m-K960 BTU-in/hr-ft-F AA; Typical at 77F
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 890F
Aging Temperature121 - 177 C250 - 350 F 

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistant format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's disclaimer and terms of use regarding this information. MatWeb data and tools provided by MatWeb, LLC.