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
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Material Notes:
Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.
Physical Properties
| Physical Properties | Metric | English | Comments |
| Density | 2.81 g/cc | 0.102 lb/in³ | AA; Typical |
Mechanical Properties
| Hardness, Brinell | 140 | 140 | 500 kg load with 10 mm ball. Calculated value. |
| Hardness, Knoop | 177 | 177 | Converted from Brinell Hardness Value |
| Hardness, Rockwell A | 51.6 | 51.6 | Converted from Brinell Hardness Value |
| Hardness, Rockwell B | 84 | 84 | Converted from Brinell Hardness Value |
| Hardness, Vickers | 162 | 162 | Converted from Brinell Hardness Value |
| Ultimate Tensile Strength | 531 MPa | 77000 psi | AA; Typical |
| Tensile Yield Strength | 462 MPa | 67000 psi | AA; Typical |
| Elongation at Break | 12 % | 12 % | AA; Typical; 1/2 in. (12.7 mm) Diameter |
| Modulus of Elasticity | 71.7 GPa | 10400 ksi | AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus. |
| Poisson’s Ratio | 0.33 | 0.33 | |
| Machinability | 70 % | 70 % | 0-100 Scale of Aluminum Alloys |
| Shear Modulus | 27 GPa | 3920 ksi | |
| Shear Strength | 310 MPa | 45000 psi | Calculated value. |
Electrical Properties
| Electrical Resistivity | 4.31e-006 ohm-cm | 4.31e-006 ohm-cm |
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 | 163 W/m-K | 1130 BTU-in/hr-ft²-°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 |