7050 aluminum is a heat-treatable aerospace-grade material that combines high strength, excellent resistance to stress corrosion cracking, and toughness, maintaining high strength even at sub-zero temperatures.
Due to its lower quench sensitivity, it retains high strength in thicker sections, making it particularly suitable for large-size applications with diameters ranging from 3 inches to 6 inches.
7050 aluminum bar specifications
- AMS 4340 7050 T76511
- AMS 4341 7050 T73511
- AMS 4342 7050 T74511
- AMS 4108
- AMS 4333
- QQ A-430
- ASTM B594
- ASTM B247
- ASTM B316
- BMS 7-323
All 7050 aluminum sold by Mastar complies with stringent industry standards such as AMS, ASTM, QQ, and UNS.
7050 aluminum bar popular sizes
We stock a variety of sizes and tempers of 7050 aluminum rods, including T4511, T6511, and T73511 states.
We can saw the 7050 aluminum rods to any size, maintaining a tolerance of ±0.005 inches.Quick Quote
7050-T76511 aluminum bar(AMS 4340)
The 7050-T76511 aluminum rod offers enhanced stress corrosion cracking resistance and exfoliation corrosion resistance while maintaining high strength.
- Tensile Strength: 79 ksi
- Yield Strength: 69 ksi
- Elongation: 7%
| Description | Diameter | Length | Weight |
| 7050-T76511 2" Round Bar | 2" | 98" | 13.62 KG |
| 7050-T76511 3" Round Bar | 3" | 98" | 30.65 KG |
| 7050-T76511 4" Round Bar | 4" | 98" | 54.49 KG |
| 7050-T76511 5" Round Bar | 5" | 98" | 85.14 KG |
| 7050-T76511 6" Round Bar | 6" | 98" | 122.60 KG |
| 7050-T76511 7" Round Bar | 7" | 98" | 166.87 KG |
| 7050-T76511 8" Round Bar | 8" | 98" | 217.95 KG |
| 7050-T76511 9" Round Bar | 9" | 98" | 275.85 KG |
| 7050-T76511 10" Round Bar | 10" | 98" | 340.55 KG |
| 7050-T76511 11" Round Bar | 11" | 98" | 412.07 KG |
| 7050-T76511 12" Round Bar | 12" | 98" | 490.39 KG |
7050-T74511 aluminum bar(AMS 4342)
The 7050-T7451 (formerly T73651) further enhances corrosion resistance while maintaining strength, making it suitable for applications that require a balance of strength and corrosion resistance, commonly found in aerospace structural components.
- Tensile Strength: 73 ksi
- Yield Strength: 63 ksi
- Elongation: 7%
| Description | Diameter | Length | Weight |
| 7050-T74511 2" Square Bar | 2" | 98" | 17.34 KG |
| 7050-T74511 1.5" Round Bar | 1.5" | 98" | 7.66 KG |
| 7050-T74511 2" Round Bar | 2" | 98" | 13.62 KG |
| 7050-T74511 2.5" Round Bar | 2.5" | 98" | 21.28 KG |
| 7050-T74511 3" Round Bar | 3" | 98" | 30.65 KG |
| 7050-T74511 3.5" Round Bar | 3.5" | 98" | 41.72 KG |
| 7050-T74511 4" Round Bar | 4" | 98" | 54.49 KG |
7050-T73511 aluminum bar(AMS 4341)
The 7050-T73511 aluminum rod sacrifices some strength but offers exceptional stress corrosion cracking resistance, making it particularly suitable for applications that require outstanding stress corrosion resistance.
- Tensile Strength: 70 ksi
- Yield Strength: 60 ksi
- Elongation: 8%
| Description | Thickness | Width | Length | Weight |
| 7050-T73511 4" Rectangular bar | 4" | 1.20" | 144" | 30.58 KG |
| 7050-T73511 5" Rectangular bar | 5" | 2.5" | 144" | 79.64 KG |
7050 large size cast bars
We offer a complete range of large size cast bar specifications with stable quality, capable of meeting customers' machining needs for oversized parts.
| Description | Diameter in | Diameter mm | Length |
| 7050 Cast Bar | 6" | 159 | 1-6m |
| 7050 Cast Bar | 7" | 177 | 1-6m |
| 7050 Cast Bar | 8" | 201 | 1-6m |
| 7050 Cast Bar | 8.5" | 215 | 1-6m |
| 7050 Cast Bar | 9" | 227 | 1-6m |
| 7050 Cast Bar | 10" | 252 | 1-6m |
| 7050 Cast Bar | 11" | 278 | 1-6m |
| 7050 Cast Bar | 12" | 314 | 1-6m |
| 7050 Cast Bar | 13.5" | 350 | 1-6m |
| 7050 Cast Bar | 14.5" | 372 | 1-6m |
| 7050 Cast Bar | 16.5" | 424 | 1-6m |
| 7050 Cast Bar | 17" | 434 | 1-6m |
| 7050 Cast Bar | 20" | 518 | 1-6m |
| 7050 Cast Bar | 24" | 607 | 1-6m |
| 7050 Cast Bar | 27" | 682 | 1-6m |
| 7050 Cast Bar | 30" | 750 | 1-6m |
| 7050 Cast Bar | 36.5" | 930 | 1-6m |
| 7050 Cast Bar | 45" | 1150 | 1-6m |
7050 aerospace forging bars
Diameter: Up to 800 mm (31.5")
Length: Up to 8000 mm (315")
Yield Strength: 473 MPa
7050 Aluminum bar chemical composition
We are happy to adjust the chemical composition according to your requirements to meet your highly personalized processing and quality standards. We look forward to your requests!Quick Quote
| Chemical Element | % Present |
| Si | 0.0 - 0.12 |
| Fe | 0.0 - 0.15 |
| Cu | 2.0 - 2.6 |
| Mn | 0.0 - 0.10 |
| Mg | 1.9 - 2.6 |
| Cr | 0.0 - 0.04 |
| Zr | 0.08 - 0.15 |
| Zn | 5.7 - 6.7 |
| Ti | 0.0 - 0.06 |
| Other (Each) | 0.0 - 0.05 |
| Others (Total) | 0.0 - 0.15 |
| Aluminium (Al) | 87.3 - 90.3 |
Physical properties of 7050 aluminum bar
| Physical Property | Value |
| Density | 2.70 g/cm³ |
| Melting Point | 630 °C |
| Thermal Expansion | 24 x10^-6 /K |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 140 W/m.K |
| Electrical Resistivity | 35 % IACS |
Advantages of 7050 Aluminum Bar
- The 7050 aluminum bar maintains high strength over extended periods, suitable for high-load applications.
- It exhibits excellent stress corrosion cracking resistance, making it ideal for long-term use in harsh environments.
- 7050 shows strong fatigue resistance and fracture toughness, suitable for applications with high stress cycling.
- It retains high strength in extreme temperature conditions.
- The surface is easy to treat, allowing for good polishing effects, suitable for applications with high aesthetic requirements.
- 7050 is particularly suitable for large diameter bar applications, such as aerospace and mechanical components.
Applications of 7050 aluminum bar
- Aerospace: Used in bulkheads, wing skins, high-stress components, and fuselage frames due to its high strength, good exfoliation corrosion resistance, and average SCC resistance.
- Mold Manufacturing: Suitable for making tools, molds, and models, exhibiting good machining properties and mechanical strength.
- Nuclear Industry: Used in nuclear equipment due to its superior mechanical properties and radiation resistance, ensuring safety and reliability.
- Defense: Favored for manufacturing military aircraft, armored vehicles, and other defense equipment due to its high strength and stress corrosion resistance.
- Construction and Industry: Applied in manufacturing building beams, columns, frame components, and mechanical parts, suitable for situations requiring strength and durability.
- Transportation: Due to its lightweight and sturdy characteristics, the 7050 aluminum bar is an ideal material for manufacturing buses, trucks, and other transport vehicles.
- Sports Equipment: Used in making outdoor equipment and sports products because of its lightweight and durable properties.
Ultrasonic testing of 7050 aluminum bar
The 7050 aluminum bar can undergo ultrasonic inspection (USI) according to ASTM B594 to detect internal defects.
Mastar is renowned for its excellent machinability, fine grain structure, and low residual stress. The 7050 aluminum bar not only maintains superior flatness but also ensures consistency between batches.Quick Quote
Processing recommendations for 7050 aluminum bar
7050 aluminum does not exhibit good cold workability but can be machined effectively. It also has a favorable anodizing response.
Welding of 7050 aluminum alloy should be avoided
Welding of 7050 alloys presents challenges, and methods such as tungsten inert gas (TIG) or metal inert gas (MIG) welding should not be used.
Traditional welding often leads to cracking and porosity, and the performance of any welded joint is significantly weaker than that of the base material.
Therefore, it is recommended to use friction welding, riveting, or other joining techniques for 7050 alloys.
Differences between 7050 aluminum alloy and 6061 aluminum alloy
- 7050 Aluminum Alloy: Better suited for applications requiring high strength, corrosion resistance, and toughness, such as aerospace and defense.
- 6061 Aluminum Alloy: Offers a better balance between strength, corrosion resistance, and machinability, making it suitable for a wide range of industrial and structural applications.
Differences between 7050 aluminum alloy and 7075 aluminum alloy
- 7050 Aluminum Alloy: Superior in maintaining high strength and resistance to stress corrosion cracking over time, making it a better choice for structural applications, especially for high-stress components exposed to harsh environments.
- 7075 Aluminum Alloy: Exhibits higher strength than 7050 aluminum alloy.