7049 aluminum alloy forgings profile sheet

On the basis of 7001 alloy, the contents of alloying elements Cu and Cr are reduced, the ratio of Zn/Mg is increased, and the impurity content of Fe and Si is reduced. It is also used to produce forgings and backfill parts of T73 state, and also to produce thick plates and sheets. The crack growth rate of stress corrosion cracking is much lower than that of 7075 T651 at the same time that the strength is not less than 7075 T6 alloy. The 7049 aluminum alloy forgings profile sheet alloy is mainly used in aircraft main landing gear, missile parts.

Chemical Composition of 7049 alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

Others

Al

Each

Total

7049

0.25

0.35

1.2~1.9

0.20

2.0~2.9

0.10~0.22

~

7.2~8.2

0.10

~

0.05

0.15

Remainder

Alloy	Alloy series00	Mean features	σb  Value/MPa	Working Temperature/℃
7049	7049 series(Europe）	On the basis of 7001 alloy, the contents of alloying elements Cu and Cr are reduced, the ratio of Zn/Mg is increased, and the impurity content of Fe and Si is reduced. It is also used to produce forgings and backfill parts of T73 state, and also to produce thick plates and sheets. The crack growth rate of stress corrosion cracking is much lower than that of 7075 T651 at the same time that the strength is not less than 7075 T6 alloy.	～	<125

Alloy	Mean features	Types: Temper	Application parts and typical parts
7049	In place of 7079 alloy, the strength and resistance to SCC are good and the resistance to ordinary corrosion is not strong.	Extruded aluminum profile：T73511，T76511 Aluminum forgings： T73，T7352 Aluminum sheet and plate：T73	Aircraft main landing gear, missile accessories.