China Aircraft Aerospace Aluminum Extrusions Section for Aviation

Aircraft Aerospace Aluminum Extrusions Section for Aviation(2A11/2A12/2A16/2A50/2A70/2014)
Chemical property of 2A12AlloySiFeCuMnMgCrNiZnTiZr OthersAlEachTotal2A120.50-1.2 0.703.9~5.00.4~1.20.2~0..80.10~0.250.15~0.050.15Remainder

AlloyAlloy seriesMain featuresΣb Value/MPaTemperature/ºC2A12Al-Cu-MgThe heat-treated reinforced alloy has good plastic forming ability and machinability, and it can produce all kinds of semi-finished products. The corrosion resistance is poor, the welding performance is good, and the welding performance is poor.
345~440
<150
Technical indexes of common 2A14 aluminum alloyAlloyTypeTemperδor d/mmσb/MPaσp 0.2/MPaδ/%KIC or KC/MPa Technical Standard2A12Clad aluminum sheetT40.3~6.5405~425270~27513-GJB2053--1994T620.5~4.03903056-Aluminum plateT4> 10~254202757-GJB 2662--1996> 25~403902555 T351> 12~254352907-GJB 1741--1993> 25~404252906 Extruded aluminum profileT6> 20~4044031510-GB/T 2507--1995

2A14 welding propertyAlloyResistance weldingMelting weldingArgon arc weldingNote2A12GoodWorseWorseFor gas welding and argon arc welding of aluminum alloy as solder, tend to form crystalline cracks; 4A01 alloy solder, forming cracks tend to be significantly reduced, but the strength of welded joint is greatly reduced, such as heat treatment after welding, the joint strength is close to the substrate, but the ductility decreases.
AlloyTemperAircraft ModelApplication parts and typical parts2A12Aluminum sheet: T4,T62
Aluminum plate: T4,T351
Extruded aluminum profile: T6Y8, Y12,J6,J7,J8etc.The central wing and aileron wing, connectors, wing stringers, fork, pins, washers, curved skin, central wing strip, a base plate and a cover plate
Chemical Property of 2A16AlloySiFeCuMnMgCrNiZnTiZrOthersAlEachTotal2A160.300.306.0~7.00.4~0.80.05--0.100.10~0.200.200.050.15Remainder

AlloyAlloy Series Main features2A16Al-Cu-Mn2A16 Alloy is a heat treated Al-Cu-Mn system heat resistant aluminum alloy, and it is a kind of cryogenic alloy, which can be used at very cold temperature. It has high endurance strength at 250~350 C, which can be used for a long time in this temperature range. Its room temperature strength is lower than that of 2A12 alloy. The alloy has good weldability, and can be used for electric welding, roll welding and argon arc welding. The friction stir welding has excellent performance. After solid solution treatment, the natural failure rate of the alloy is slow, the incubation period is long and the application under artificial aging is one of the most deformation aluminum alloys used in the spacecraft.
Technical indexes of common 2A16 aluminum alloyAlloyTypeTemperδ or d/mmσb/MPaσp 0.2/MPaδ/%KIC or KC/MPa Technical Standard2A16Aluminum sheetO0.3~10.0≤235-15~YS/T 212T4275-12~T6 3752758~T623752658~O1.0~4.0≤235-15~ GJB 2053T4275-12~T6 3752758~T623752658~2A16Large size aluminum sheetO0.5~10.0≤235-15~YS/T 214T4275-12~T63752758~T623752658~Aluminum plateT611~183752758~ GB 3193T4275-12~O4~6
≤235-15~ GJB 2662T4275-12~ T63702758~T5>10~403702758~T625~103702658~Aluminum round barT6All thickness3552358 T62≤1503552358 T65~1503502358 T6≤2403552358 Aluminum profileT6 All thickness3452358
Alloy TypeTemperLongitudinal directionPortrait directionHBSTechnical Standardσb/MPaσp 0.2/MPaδ/%σb/MPaσp 0.2/MPaδ/%2A16Die forgingsT637525583752558100GJB 2351Forgings35523583552358100Die forgingsT637525583752558100HB 5204Forgings35523583552358100
AlloyTemperAircraft TypeApplication parts and typical parts2A16Aluminum sheet: O,T4,T6,T62
Aluminum plate: O,T4,T6,T62
Aluminum round bar,Aluminum profile: T6,T62
Aluminum forgings: T6MIG, B737-300,A320,Y8,ARJ21,JH7,J10Rocket fuel tank, engine blade, airtight cockpit, head hood, airfoil whole mailbox, body interior structure, etc.