Can 8021 aluminum foil replace 8011 aluminum foil or not

2020-05-20

Among aluminum foil alloys, 8011 aluminum foil and 8021 aluminum foil are the most commonly used alloys, although both of them belong to the 8-series aluminum foil alloy, there are some differences in the composition of the two, so there are certain differences in performance and use. About these differences, Mingtai aluminum, as a professional alumiunm foil manufacturer and supplier with over 20 years experience, can explain for you used as a reference when you buying it.

aluminum foil

I. Chemical Composition Comparison

Chemical composition of 8011 aluminum foil (mass fraction)/%

Grade

Si

Fe

Cu

Mn

Mg

Cr

Zn

Ti

Others

Al

8011

0.5~0.9

0.6~1.0

≤0.10

≤0.20

 ≤0.05

0.05

≤0.10

≤0.08

0.05

Remain


Chemical composition of 8021 aluminum foil (mass fraction)/%

Grade

Si

Fe

Cu

Mn

Mg 

Cr

 Zn 

Ti 

Others

Al

8021

≤0.15

1.2~1.7 

≤0.50

--

--

--

--

--

0.05

Remain

It can be seen that: the 8011 aluminum foil contains Mn and Mg elements, and the 8021 aluminum foil does not contain these two elements, so the strength and corrosion resistance of 8011 aluminum foil is higher than that of 8021 aluminum foil.


2.As Cap Material, the Application Field of 8011 Aluminum Foil and 8021 Aluminum Foil is Different

The 8021 aluminum foil is suitable for bottle cap material that requires better deep-blanking performance, while the 8011 aluminum foil is often used for yogurt cover and other places.


3.The Same as the Medicinal Aluminum Foil, Their Purpose are Different

The strength of 8011 aluminum foil is high, but the elongation and puncture resistance are lower than that of 8021 aluminum foil in the same temper. In drug packaging, the aluminum foil coating on the back of capsule plate is mostly 8021 aluminum foil, while blister and tropical medicine packaging require more tightness and elongation of the material, so 8021 aluminum foil and 8079 aluminum foil are mostly used.

4.The Range and Price are Different

8011 aluminum foil is more widely used, can be used in medicine packaging, food packaging, meal box material, tape foil, cable foil, bottle cap material and many other fields, the price is relatively favorable. 8021 aluminum foil is mainly used in the relatively high requirements of lithium battery soft package aluminum plastic film and blister medicine packaging, the price is more expensive.

Mingtai aluminum foil supplier


Henan Mingtai Aluminum is a professional aluminum foil manufacturer, is China's top 10 aluminum foil manufacturer, and recently selected as Henan aluminum plate/foil/coil industry "top 10 enterprises." Here, whether you want to buy medical aluminum foil, bottle cap material, food box material, adhesive tape foil, battery foil or cable foil, Mingtai Aluminum will be your better choice!

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