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3a21 Aluminum Sheet

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Properties of 3a21 Aluminum Sheet

3a21 aluminum alloy(Al-Mn)is an anti-rust aluminum which has a wildly application, the strength is not very high (only higher than industrial aluminum), and cannot be heat treated, so cold working method is usually used to improve their mechanical properties. It has a higher plasticity after annealing and it is better than in the semi-cold hardening. When it is cold-hardening, the plasticity and machinability are low, but it has good corrosion resistance and weldability.

Alloy Temper Thickness(mm) Width(mm) Length(mm) Typical products
3a21 aluminum sheet O,H12,H14,H16
0.2-4.5 100-2600 500-16000 Body skin, ceiling, floor and other


Features and Applications of 3a21 Aluminum Sheet

3a21 aluminum sheet is mainly used for applications which requiring higher plasticity and good weldability, such as aerospace, military equipment, fixtures, automotive, transportation, production of propellant tank, welded structure pods skin, end frames, frame and other welding members, as well as catheters and other members which work in corrosive media.

Strength of Mingai Al.
  • Technologies:Top polishing technology guarantees good luster and smooth surface.
  • Markets:Obtain market sharing all over the world.
  • Equipment:Advanced cutting line to provide a wide range of specifications.
  • Production capacity:650, 000 tons annually in total.
  • Employees:Over 25 sale persons to provide good service for customers.
  • Responsibility: Engaged in charity donation and provide eco-friendly products.
Packaging and Delivery of Mingtai Al.

Aluminum products of Mingtai Al. meet the export standard. Plastic film and brown paper can be covered at customers’ need. What’s more, wooden case or wooden pallet is adopted to protect products from damage during the delivery. There are two kinds of packaging, which is eye to wall or eye to sky. Customers can choose either of them for their convenience. Generally speaking, there are 2 tons in one package, and loading 18-22 tons in 1×20′ container, and 20-24 tons in 1×40′ container.

Product Lists

brief introduction of us

Mingtai Aluminum

  • Bussiness type:Manufacturer
  • Location:Central Part of China (Mainland)
  • Year Established:1997
  • Number of Employees:2600
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Henan Mingtai Al

Mingtai Aluminum

+86 186 3826 8963

WhatsApp / Viber
+86 186 3826 8963

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Henan Mingtai Al

Mingtai Aluminum


WhatsApp / Viber
+86 186 382 68963

Specification: X X ( Thickness * Width * Length )
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