7149 T73 T74 T7452 Aircraft Aerospace Aviation Aluminum Alloy Forgings for Landing Gear
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.
Chemical Composition of 7049alloyAlloySiFeCuMnMgCrNiZnTiZr OthersAlEachTotal71490.150.201.2~1.90.202.0~2.90.10~0.22~7.2~8.20.10~0.050.15Remainder
AlloyAlloy seriesMain featuresσb Value/MPaWork Temperature/ºC71497049 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.
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AlloyMain featuresMain type and temperApplication parts and typical parts7149It 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,T76511The main landing gear of the aircraft is forged.