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. % Al 88.5 - 91.5   Cr 0.18 - 0.25   Cu 1.2 - 1.9   Fe Max 0.12

Component    Wt. % Mg 1.9 - 2.6   Mn Max 0.06   Other, each Max 0.05   Other, total Max 0.15

Component    Wt. % Si Max 0.1   Ti Max 0.06   Zn 5.2 - 6.2

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

Physical Properties	Metric	English	Comments
Density	2.81 g/cc	0.102 lb/in³	AA; Typical
Mechanical Properties
Hardness, Brinell	148	148	500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop	188	188	Converted from Brinell Hardness Value
Hardness, Rockwell A	53.2	53.2	Converted from Brinell Hardness Value
Hardness, Rockwell B	87	87	Converted from Brinell Hardness Value
Hardness, Vickers	173	173	Converted from Brinell Hardness Value
Ultimate Tensile Strength	565 MPa	82000 psi	AA; Typical
Tensile Yield Strength	490 MPa	71000 psi	AA; Typical
Elongation at Break	11 %	11 %	AA; Typical; 1/16 in. (1.6 mm) Thickness
Modulus of Elasticity	70.3 GPa	10200 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poisson's Ratio	0.33	0.33
Shear Modulus	27 GPa	3920 ksi
Shear Strength	330 MPa	47900 psi	Calculated value.
Electrical Properties
Electrical Resistivity	4.99e-006 ohm-cm	4.99e-006 ohm-cm	AA; Typical at 68°F
Thermal Properties
CTE, linear 68°F	23.2 µm/m-°C	12.9 µin/in-°F	AA; Typical; Average over 68-212°F range.
CTE, linear 250°C	25.2 µm/m-°C	14 µin/in-°F	Average over the range 20-300ºC
Specific Heat Capacity	0.88 J/g-°C	0.21 BTU/lb-°F	Estimated from trends in similar Al alloys.
Thermal Conductivity	138 W/m-K	960 BTU-in/hr-ft²-°F	AA; Typical at 77°F
Melting Point	477 - 635 °C	890 - 1175 °F	AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater
Solidus	477 °C	890 °F	AA; Typical
Liquidus	635 °C	1175 °F	AA; Typical
Processing Properties
Annealing Temperature	413 °C	775 °F
Solution Temperature	516 °C	960 °F	must be preceded by soak at 870 to 890°F
Aging Temperature	121 - 177 °C	250 - 350 °F

References for this datasheet.