China Aircraft Aerospace Aluminum Structural Shapes for Aviation

Aircraft Aerospace Aluminum Structural Shapes for Aviation(2A11/2A12/2A16/2A50/2A70/2014)
Chemical Property of 2A50AlloySiFeCuMnMgCrNiZnTiZrOthersAlEachTotal2A500.7~1.20.701.8~2.60.4~0.80.4~0.8-0.100.300.150.10~0.250.050.15Remainder
AlloyAlloy seriesMain features2A50Al-Cu-MnHeat-treated reinforced alloy, Al-Cu-Mg alloy. It has good plasticity in thermal state and high strength and plasticity in T6 state. It is widely applied to various large, medium and small forgings, such as aircraft frame, joint, bracket, rocker arm and so on, which are used for forging medium aviation industry. The electric arc welding and gas welding alloy contact welding performance is poor, the performance is acceptable, excellent performance of friction stir welding.
Demarcation mechanical properties of 2A50 alloy barTechnical standardTypeTemperd/mmRm /MpaA/%Not less thanGB/T 3191Extruded aluminum barT6,T62≤15035512GJB 2054Extruded aluminum barT65~15035012>1503508HB 5202Extruded aluminum barT6≤2236512>2337510161~2403658GB/T 3191High strength aluminum barT6, T6220~12038010GJB 2054T620~15038010

Demarcation mechanical properties of 2A50 alloy free forgings and die forgingsStandardTypeTemperLLTSTHBSRm/MpaRp0.2/MpaA5/%Rm/MpaRp0.2/MpaA5/%Rm/MpaA5/%GJB 2351Free forgingsT6365-8.0345-6.03354.095Die forgingsT638027510.03652451.03455.0100HB 5204Free forgingsT6365-9.0345-6.03354.095Die forgingsT638027511.03652457.03455.0100
2A50 T6 Mechanical properties of alloy 110mm forgings after stabilizing treatmentStabilizing ConditionTension strength Rm/MpaElongation A5/%Temperature/ºCTime t/h200.527515100221182000.51771610098352500.51771610098353000.5103231006445
Fracture toughness of alloy 2A50 T6Typed/mmTest DirectionKIC/(N.mm-2)/Free forgings LT39~42TL36~39SL31~34Aluminum round bar≤140RL31