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Classification Of Aluminum Alloys
Shenzhen Tuofa Technology Co.,Ltd | Updated: May 12, 2016


Alloy code

Charakteristics

1000 Series


Contains no alloying elements. The proportion of aluminium is 99.3 – 99.9% and the rest is formed by tiny 

impurities. The combination of material properties, especially superior conductivity makes these alloys 

suitable for applications mainly in electrical and heat-power industry. Materials of this series are 

considered non-hardenable alloys and have tensile strengths of 40 – 60 MPa.  

AL1050,AL1060,AL1100,AL1199 included.


2000 Series


The alloying element is copper. Alloys of this series are high strength alloys. The strength is achieved

by the heat treatment process. The tensile strength is about 400 MPa on completion of hardening. 

Alloys of this series are considered not suitable for surface treatments and poor for welding. 

AL2014,AL2024,AL2219 included. 


3000 Series


The alloying element is manganese. Alloys of this series are moderate in strength, they have 

good formability and they are suitable for anodizing and welding. 

AL3003,AL3004,AL3102 included.


 4000 Series


The alloying element is silicon.

AL4041,AL4043 included.


 5000 Series

The alloying element is magnesium. Alloys of this series are moderate in strength (200 – 350 MPa). The 

strength is achieved by the heat treatment processing or forming. Alloys of this series have excellent 

resistance to corrosion in aggressive atmosphere and seawater.

AL5005,AL5052,AL5059,AL5083,AL5086,AL5154,AL5356,AL5454,AL5456,AL5754 included.


 

6000 Series


The alloying elements are magnesium and silicon. Alloys of this series are moderate in strength 

(200 – 350 MPa). The strength is achieved by the heat treatment processing or forming. Alloys of 6xxx 

series can be easily anodized.

AL6005(6005A),AL6060,AL6061,AL6063,AL6066,AL6070,AL6082,AL6105,AL6111,AL6162,AL6262,AL6351,

AL6463 included.


7000 Series

The alloying element is zinc. Alloys of this series have the highest strength among all series. The tensile 

strengths ranging between 450 – 500 MPa may exceed 600 MPa in some cases. 

These alloys prone to stress corrosion, especially when welded.

AL7005,AL7020,AL7022,AL7046,AL7068,AL7072,AL7075,AL7079,AL7116,AL7129,AL7178 included.


8000 Series


The alloying element is other than for the other series (including lithium).

AL8000,AL8090 included.


*AL 6061 is the most widely-used aluminum alloy material in CNC machining.

 

 

 



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