7021 aluminum is a high-strength, weldable alloy in the 7xxx series, primarily alloyed with zinc and magnesium. It is specifically engineered for structural applications that demand high strength, good weldability, and reasonable corrosion resistance. While not as strong as some other 7xxx series alloys like 7075, 7021 offers a better balance of weldability and strength, making it a preferred choice for welded structures.
7021 aluminum is a high-strength, weldable alloy in the 7000 series, primarily alloyed with zinc and magnesium. It is specifically engineered for structural applications that demand high strength, good weldability, and reasonable corrosion resistance. While not as strong as some other 7xxx series alloys like 7075, 7021 offers a better balance of weldability and strength, making it a preferred choice for welded structures.
| Alloy | Temper | Thickness (mm) | Width (mm) | Length (mm) |
| 7021 Alu. Sheet/Coil | T6, T651 | 0.3-600 | 500-2600 | 500-16000 |
| Length, width, and height can be customized | ||||
| Alloy | Temper | Outer Diameter (mm) | Inner Diameter (mm) | Length (mm) |
| 7021 Alu. Tube | T6, T651 | Φ1 – 17,000mm | Φ0.5 – 1500mm | 5-20,000 |
| Length, width, and height can be customized | ||||
| Alloy | Temper | Diameter (mm) | Length (mm) |
| 7021 Alu. Bar | T6, T651 | Φ1 – 10,000mm | 5-20,000 |
| Length, width, and height can be customized | |||
| Alloy | 7021 Alu.Wire |
| Size | 0.8-30 mm |
| Grade | 1000-8000 Series |
| Temper | T6, T651 |
| Weight/Coil | Min 50 Kg |
| Size Tolerance | ± 0.02 mm |
| Length, width, and height can be customized | |
| Element | Percentage % |
| Si | 0.4 Max |
| Fe | 0.5 Max |
| Cu | 1.2-2.0 Max |
| Mn | 0.1-0.4 |
| Mg | 1.2-1.8 |
| Cr | 0.1-0.25 |
| Zn | 5.0-6.0 |
| Ti | 0.1 Max |
| Zr | 0.1 Max |
| Others/Each | 0.05 |
| Others/Total | 0.15 |
| AI | Reminder |
| Aluminum | 7021 |
| Tensile Strength,Ultimate | 470 Mpa |
| Tensile Strength,yield | 420 Mpa |
| Elongation at Break | 10 |
| Shear Strength | 150-340 Mpa |
Linsy Aluminum is a leading provider of aluminum products. They support many industries. This includes aerospace, engineering, automotive, shipbuilding, and various other special industrial needs.
We are focused on maintaining high quality standards and taking care of the environment. You can see our promise in our certifications: ISO 9001:2008 for quality management, ISO 14001:2004 for environmental management, and OHSAS 18001:2007 for safety at work.
Linsy Aluminum ships its products to Europe and many other locations. These include South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and various South Asian countries.
Linsy Advantages
Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.
We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008， ISO 14001:2004 and SGS.
