China Aircraft Aerospace Extruded Aluminum Profiles for Aviation

Aircraft Aerospace Extruded Aluminum Profiles for Aviation (2A11/2A12/2A16/2A50/2A70/2014)
Chemical Compostion of 2A11 Aircraft Aerospace Aluminum Alloy sheet profile forgingsAlloySiFeCuMnMgCrNiZnTiZr OthersAlEachTotal2A110.700.703.8~4.80.4~0.80.4~0.8~0.100.300.15~0.050.15Remainder
AlloyAlloy SeriesMain FeaturesΣb Values/MPaTemperature /ºC2A11Al-Cu-MgThe alloy can be heat-treated with high strength and medium plasticity after solid solution heat treatment and natural aging. The welding performance of the alloy is better.285~400<150
Technical indexes of common 2A11 aluminum alloyAlloyTypeTemperδ or d/mmσb/MPaσp 0.2/MPaδ/%KIC or KC/MPa Standard2A11Clad aluminum sheetO0.5~2.9≤225 12~GB/T 3880>2.9≤235 12T420.5~2.9≥350≥18515~>2.9≥355≥195T30.5~1.6≥375≥21515~>1.617>2.915T40.5~2.9≥360≥185 ~>2.9≥370≥195T42>4.5≥355≥19515~>10.0≥370≥21511T42>12.5≥370≥21511~>25.0≥330≥1958>40.0≥310≥1956F>70.0≥285≥1954~2A11Aluminum sheetO0.5~2.5≤225-12~GJB 2053>2.5≤235-12~T40.5~2.5≥365≥18515~>2.5≥375≥19515 2A11Aluminum plateO7~10≤235-12~GJB 2662T47~10≥370≥1965~T47~10≥355≥18612~>10≥370≥21511~>25≥335≥1968~>40≥315≥1966~>70≥285≥1964~2A11Aluminum pipeOAll≤245-10~GB/T 4437T4≤120≥355≥19512~>120≥375≥21510 2A11Extruded pipe(wall thickness 5-35mm)O25~250≤245 10 GJB 2381T425~120≥350≥19612 120~250≥370≥21510 2A11Extruded round barT4≤160≥375≥21512 GB/T 3191>160≥355≥19510 2A11Extruded round barT45~150≥375≥21512 >150≥340≥2008 Extruded round barT4≤30≥375≥21512 HB 520231~165≥390≥23510 161~240≥375≥21510 2A11High Strength Extruded round baT423~240≥420≥2759 HB 52022A11Extruded aluminum profileOAll≤245 9 GJB 2507T4≤10.0≥355≥21512 >10.0≥375≥22512 >20.0≥400≥24512
2A11 Mechanical properties of alloy cold drawn pipesAlloyTypeTemperPipe Size /mmσb/MPaσp 0.2/MPaδ/%Technical StandardOD dWall thickness δ
2A11Cold drawn PipesFAll Sizes≤245-10GJB 2379-1995T4<22≤1≥375≥195131.5~2.01422~50≤1≥390≥225121.5~5.013>50≤5.0≥390≥22511Pipes≥390≥22512
2A11 T4 Mechanical properties of aluminum alloy forgings and die forgingsAlloyTypeLLTSTHBSTechnical Standardσb/MPaσp 0.2/MPaδ/%σb/MPaσp 0.2/MPaδ/%σb/MPaδ/%2A11Free forgings355-10335-5315495GJB 2351355-10335-5315495375-11335-5315495HB 5204Die Forgings375195123551756325595GJB 2351375196123551776325595390205133551756325595HB 5204Blade die forgings355-13-----95GJB 2380
2024 Wedding PropertyAlloyResistance weldingMelting weldingArgon arc weldingNote2A11GoodWorseWorseFor 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.
AlloyTemperApplication modelApplication parts and typical parts2A11Sheet: O,T3,T4,T42,F
Plate: O,T4
Cold drawn tube:O,T3
Extruded tube,profile:O,T4
Tube:F,T4
Forgings: T4Y8Front of the fuselage