China Aircraft Aerospace Extruded Aluminum Tube for Aviation

Aircraft Aerospace Extruded Aluminum Tube for Aviation
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.

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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<125
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.
7150 aluminum alloy sheet profile
The 7150 is the second generation modification of 7050 Alloy, the main varieties have thick plates and profiles, the use of the state of T7751 and T77511. Compared with other 7 * * * * system alloys, 7150 T77 alloys have obtained the best combination of strength and corrosion properties.
The 7150 alloy is mainly supplied in the form of T7751 thick plate, T77511 extruded parts and T76511 extrusion parts. 7150 aluminum alloy sheet profile
is used for the main stress parts of the upper wing structure and aircraft structure, such as wing upper wall panels, beams, edge strips and so on.7150
Chemical Composition of 7150 alloyAlloySiFeCuMnMgCrNiZnTiZr OthersAlEachTotal71500.120.151.9~2.50.12.0~2.70.04~5.9~6.90.060.08~0.150.050.15Remainder
AlloyAlloy seriesMain featureσb Value/MPaWork Temperature/ºC71507050 seriesThe 7150 is the second generation modification of 7050 Alloy, the main varieties have thick plates and profiles, the use of the state of T7751 and T77511. Compared with other 7 * * * * system alloys, 7150 T77 alloys have obtained the best combination of strength and corrosion properties.

579~622
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Physical Property of 7150 AlloyAlloyTypeTemperSize/mmDirectionσb/MPaσp 0.2/MPaKIC oR KCδ %7150Aluminum sheetT7751δ6.35~12.69L552510
-8LT552510δ12.70~19.04L572531-8LT572524δ19.05~25.40L579538L - T 22
T -L19.88LT579531δ25.41~38.10L57953L -T 24.2
T -L 228LT579531δ38.11~76.20L5655247LT5655176ST5314621Aluminum profileT77511δ1.0~6.34L594545-7LT566510δ6.35~12.69L6085738LT573531δ12.70~19.04ST6155809L580552δ19.05~50.80LT622587L -T 23.1
T -L 18.78ST580545
AlloyTemperAircraft typeApplication parts and typical parts
7150Aluminum plate: T7751
Aluminum profile: T77511
Widely used abroad, domestic ARJ21 and so onhe main force parts of an aircraft structure, such as the panel on the wing, the beam, the flange and so on.7249 aluminum alloy forgings profile
On the basis of 7149 alloy, the impurity content of Fe and Si can be reduced. Compared with 7249 T7651 and 7075 T7651, it has better resistance to peeling corrosion, stress corrosion resistance, fracture toughness and fatigue life, and is also convenient for heat treatment. 7249 aluminum alloy forgings profile is mainly used for the forging parts of the aircraft's main landing gear.

AlloyAlloy seriesMain Featuresσb Value/MPaWork Temperature/ºC72497049 series(Europe)On the basis of 7149 alloy, the impurity content of Fe and Si can be reduced. Compared with 7249 T7651 and 7075 T7651, it has better resistance to peeling corrosion, stress corrosion resistance, fracture toughness and fatigue life, and is also convenient for heat treatment
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AlloyMain FeaturesMain products and statesApplication parts and typical parts7249The comprehensive performance is better than 7149, and it is an improved alloy of 7049.Aluminum forgings: T73,T74,T7452
Aluminum extrusion:T73511,T76511The main landing gear of the aircraft is forged.
Chemical Composition of 7049AlloyAlloySiFeCuMnMgCrNiZnTiZr OthersAlEachTotal72490.100.121.3~1.90.102.0~2.40.12~0.18~7.5~8.20.06~0.050.15Remainder