7149 aluminum alloy forgings profile

The 7149 is to reduce the content of Fe and Si impurities on the basis of 7049, to further improve the fracture properties of the alloy, and mainly to produce forgings. It has good strength and resistance to SCC, and the fracture property is better than 7049. It is a modified alloy with 7049. 7149 aluminum alloy forgings profile is mainly used in the forging parts of the main landing gear of the aircraft.

Alloy	Alloy series	Main features	σb Value/MPa	Work Temperature/℃
7149	7049 series(Europe）	The 7149 is to reduce the content of Fe and Si impurities on the basis of 7049, to further improve the fracture properties of the alloy, and mainly to produce forgings.	～	<125

Chemical Composition of 7049alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

Others

Al

Each

Total

7149

0.15

0.20

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	Main features	Main type and temper	Application parts and typical parts
7149	It has good strength and resistance to SCC, and the fracture property is better than 7049. It is a modified alloy with 7049.	Aluminum forgings： T73，T74，T7452 Aluminum Extrusion：T73511，T76511	The main landing gear of the aircraft is forged.