7049 T7651 T7451 T7351 Aerospace Aluminum Plate
7049 aluminum has a base of aluminum with small amounts of zinc, magnesium, copper, and chromium elements. 7049 aerospace aluminum plate is a high-strength aluminum alloy material widely used in aerospace, military, and high-performance industrial fields.
7049 aluminum (also known as UNS A97049) is a forging alloy primarily used in the aerospace industry. Due to its excellent stress corrosion cracking resistance, this alloy is widely used in structural forgings. Its forging process should be carried out in a temperature range of 720°F to 820°F through hot forging or hot forming.
Informations about 7049 Aluminum
| Feature | Details |
| Principal Design Features | 7049 is a forging alloy, heat treatable with excellent resistance to stress corrosion cracking. |
| Applications | Primarily used for structural forgings in the aircraft and missile industries. |
| Machinability | Good machinability in the heat-treated state. Use of oil lubricants is recommended during machining. |
| Forming | Not suitable for cold forming. Forming is done by hot forging or hot forming. |
| Welding | Welding should be avoided. Tungsten inert gas welding may be possible, but not recommended. |
| Heat Treatment | Solution heat treatment at 875°F, followed by water quenching. Aging can be performed after heat treatment. |
| Forging | Forging is performed within a narrow temperature range of 820°F to 720°F. |
| Hot Working | Hot working is done in the same temperature range as forging: 820°F to 720°F. |
| Cold Working | Cold working should not be done. |
| Annealing | Not applicable, as this alloy is not cold worked. |
| Tempering | Not applicable. |
Characteristics of 7049 Aerospace Aluminum Plate
- 1. High strength: The 7049 aluminum alloy has an excellent strength-to-weight ratio, making it suitable for structures that bear high loads.
- 2. Good corrosion resistance: With appropriate surface treatment, it has good corrosion resistance.
- 3. Machinability: It can be cut, drilled, and formed using conventional machining methods.
- 4. Heat treatment: Its mechanical properties can be further improved through heat treatment processes such as T6.
7049 aircraft aluminum alloy product specifications
| Specification | |
| Alloy | 7049 |
| Temper | T7651, T7451, T651, T73511 |
Haomei Aluminum Offers 7049 Aluminum
| Product | Description |
| 7049 Aluminum Forgings | 7049 aluminum forgings are made by shaping the material under high pressure, offering excellent mechanical properties such as high strength, toughness, and resistance to fatigue. This makes them ideal for aerospace and structural applications requiring high-performance alloys. |
| 7049 Aluminum Round Bar | 7049 aluminum round bars are extruded or forged into cylindrical shapes. These bars are commonly used in aerospace, automotive, and marine applications where high strength and corrosion resistance are crucial, and are often used for structural parts and shafts. |
| 7049 Aluminum Flat Bar | 7049 aluminum flat bars are characterized by their flat, rectangular shape, providing excellent versatility. These are used in a wide range of structural applications, including frames, supports, and in aerospace components that demand both strength and lightweight properties. |
| 7049 Aluminum Rectangular Bar | Similar to flat bars, 7049 aluminum rectangular bars have a thicker cross-section, offering even greater load-bearing capacity. They are used in structural engineering, aerospace, and manufacturing industries, especially in applications requiring high strength-to-weight ratios. |
| 7049 Aluminum Rolled Rings | Rolled rings made from 7049 aluminum are produced by heating and rolling the aluminum into ring-shaped components. These are commonly used in aerospace and heavy industries where precision, strength, and durability are essential for applications like turbine engines or structural supports. |
| 7049 Aluminum Forged Rings | Forged rings are made by compressing the 7049 aluminum alloy into ring shapes under high pressure. These forged rings have superior mechanical properties, including high strength and fatigue resistance, making them ideal for demanding aerospace and automotive applications. |
| 7049 Aluminum Sheet | 7049 aluminum sheets are thin, flat pieces of aluminum produced through rolling or extrusion. These sheets are commonly used in manufacturing and aerospace sectors due to their high strength, good machinability, and excellent corrosion resistance, ideal for skin panels, fuselage sections, and structural parts. |
| 7049 Aluminum Plate | 7049 aluminum plates are thicker than sheets and offer excellent strength and toughness. These plates are used for critical aerospace, automotive, and structural components that need to withstand high loads, stress, and wear. |
| 7049 Aluminum Extrusion | 7049 aluminum extrusions are shapes produced by forcing the aluminum through a die to create custom profiles such as beams, channels, and frames. These extrusions are widely used in aerospace, automotive, and construction industries due to their adaptability and high strength-to-weight ratio. |
| 7049 Aluminum Extrusion Angles | 7049 aluminum extrusion angles are formed into L-shaped profiles that offer high structural support. They are used in structural frameworks, supports, and reinforcement applications, particularly in aerospace and manufacturing industries. |
| 7049 Aluminum Billet | 7049 aluminum billets are solid, cylindrical forms of aluminum that serve as raw material for further processing, including extrusion, forging, and machining. These billets are prized for their high strength and resistance to stress, making them suitable for a wide range of precision applications. |
| 7049 Aluminum Ingot | 7049 aluminum ingots are cast blocks of aluminum that are typically used as starting material for further processing into more refined products such as billets, sheets, and plates. The alloy’s high strength and durability make it suitable for industrial and aerospace manufacturing. |
| 7049 Aluminum Machined Parts | 7049 aluminum machined parts are components that have been precisely cut or shaped using machining processes. These parts are used in applications that require tight tolerances, high strength, and excellent fatigue resistance, particularly in aerospace, automotive, and defense sectors. |
Advantages of 7049 Aerospace Aluminum Plate
1. High Strength and Low Density
High Strength:
- Tensile Strength: The tensile strength of 7049 aluminum alloy can typically exceed 500 MPa, and with appropriate heat treatment (like T6), it can be further enhanced. This strength allows the 7049 aluminum plate to be used in high-stress environments, such as structural components and support frames in aircraft.
- Yield Strength: The yield strength of 7049 is also very high, enabling it to withstand significant loads without plastic deformation. This is crucial in aerospace, as aircraft and spacecraft experience immense aerodynamic loads during flight.
Low Density:
- Lightweight Design: The density of 7049 aluminum alloy is about 2.7 g/cm³, significantly lower than that of steel (typically 7.8 g/cm³). This low density allows for lighter structures in aircraft design, improving fuel efficiency and load capacity.
- Enhanced Performance: In aerospace, weight is a critical factor; using 7049 aluminum alloy can reduce overall structural weight, improving flight performance, speed, and range.
2. Good Machinability
Formability:
Cold and Hot Working: The 7049 aluminum alloy has good formability, allowing it to be manufactured through cold working (like stamping and bending) and hot working (like forging and extrusion). Its high plasticity makes it easier to shape during processing.
Machining Performance:
- Cutability: The 7049 aluminum alloy exhibits excellent cutability during machining, enabling high-precision processing. By selecting appropriate tools and processing parameters, machining efficiency and surface quality can be effectively improved.
- Surface Treatment: The processed surface can undergo various treatments (like anodizing and coating) to enhance corrosion resistance and appearance.
Welding Performance:
Although the welding performance of 7049 aluminum alloy is relatively poor, it can be improved by selecting suitable welding materials (such as using aluminum-magnesium alloys as filler) and controlling welding parameters to enhance the strength and performance of the weld joints.
7049 T7651 Aircraft Aluminum Plate
T7651 is an age-hardened aluminum alloy that provides additional strength and toughness.
7049 T7651 has higher strength and better toughness, suitable for high-load-bearing aircraft components, such as wing frames and support structures.
7049 T7451 Aircraft Aluminum Plate
T7451 is also an age-hardened aluminum alloy, with good strength and toughness.
7049 T7451 has excellent overall mechanical properties, suitable for use at elevated temperatures, commonly used in high-performance components in aerospace.
7049 T7351 Aircraft Aluminum Plate
T7351 is another age-hardened aluminum alloy with outstanding overall performance.
7049 T7351 has good corrosion resistance and crack resistance, making it suitable for structural components requiring high corrosion resistance and toughness.
7049 aluminum alloy chemical composition
| Element | Al | Cu | Mg | Mn | Ge | Ti | Si | Fe | Sn | Zr |
| Minimum value (%) | margin | 1.2 | 2.0 | 0.3 | 0 | 0.06 | 0 | 0 | 0 | 0.04 |
| Maximum (%) | margin | 1.9 | 2.8 | 0.9 | 0.05 | 0.20 | 0.12 | 0.15 | 0.05 | 0.05 |
7049 Aluminum Plate Sheet Physical Properties
| Properties | Metric | Imperial |
| Density | 2.84 g/cc | 0.103 lb/in3 |
| Melting Point | 477 – 635.0 °C | 890 – 1175 °F |
7049 Aluminum Plate Sheet Mechanical Properties
| Properties | Metric | Imperial |
| Hardness, Brinell | 135 | 135 |
| Hardness, Knoop | 170 | 170F |
| Hardness, Rockwell A | 50.5 | 50.5 |
| Hardness, Rockwell B | 82 | 82 |
| Hardness, Vickers | 155 | 155 |
| Tensile Strength, Ultimate | 517 MPa | 75000 psi |
| Tensile Strength, Yield | 448 MPa | 65000 psi |
| Elongation at Break | 12% | 12% |
| Modulus of Elasticity | 71.7 GPa | 10400 ksi |
| Poissons Ratio | 0.33 | 0.33 |
| Shear Modulus | 27.6 GPa | 4000 ksi |
| Shear Strength | 303 MPa | 44000 psi |
7049 Aluminum Plate Sheet Thermal Properties
| Properties | Metric | Imperial |
| Specific Heat Capacity | 0.960 J/g-°C | 0.229 BTU/lb-°F |
| Thermal Conductivity | 154 W/m-K | 1070 BTU-in/hr-ft²-°F |
Applications of 7049 Aerospace Aluminum Plate
The 7049 aerospace aluminum plate is widely used in:
- Aircraft structural components
- Main Landing Gear of Aircraft
- Aircraft fuselage and wing beams
- High-strength frames for aircraft
- Missile Components
Machining Characteristics of 7049 Aluminum Plate
- Weldability: The welding performance of 7049 aluminum alloy is poor, but it can be improved by using suitable welding materials and techniques.
- Formability: It can be formed through cold working or hot working, but attention must be paid to stress concentration during processing.
