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
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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 | 2.83 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 | 524 MPa | 76000 psi | AA; Typical |
| Tensile Yield Strength | 469 MPa | 68000 psi | AA; Typical |
| Elongation at Break | 11 % | 11 % | 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 | |
| Fracture Toughness | 28 MPa-m½ | 25.5 ksi-in½ | K(IC) in S-L Direction |
| Fracture Toughness | 31 MPa-m½ | 28.2 ksi-in½ | K(IC) in T-L Direction |
| Fracture Toughness | 35 MPa-m½ | 31.9 ksi-in½ | K(IC) in L-T Direction |
| Shear Modulus | 26.9 GPa | 3900 ksi | |
| Shear Strength | 303 MPa | 44000 psi | AA; Typical |
Electrical Properties
| Electrical Resistivity | 4.3e-006 ohm-cm | 4.3e-006 ohm-cm |
Thermal Properties
| CTE, linear 68°F | 23 µm/m-°C | 12.8 µin/in-°F | AA; Typical; Average over 68-212°F range. |
| CTE, linear 250°C | 25.4 µm/m-°C | 14.1 µin/in-°F | Average over the range 20-300ºC |
| Specific Heat Capacity | 0.86 J/g-°C | 0.206 BTU/lb-°F | |
| Thermal Conductivity | 157 W/m-K | 1090 BTU-in/hr-ft²-°F | |
| Melting Point | 488 – 629 °C | 910 – 1165 °F | AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater |
| Solidus | 488 °C | 910 °F | AA; Typical |
| Liquidus | 629 °C | 1165 °F | AA; Typical |
Processing Properties
| Annealing Temperature | 413 °C | 775 °F | |
| Solution Temperature | 477 °C | 890 °F | |
| Aging Temperature | 121 – 177 °C | 250 – 350 °F |