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Application field of aluminum alloy
All kinds of aircraft use aluminum alloy as the main structural material. Aircraft skins, beams, ribs, stringers, frames and landing gears can all be made of aluminum alloy. The amount of aluminum varies according to the purpose of the aircraft. Economic-oriented civil aircraft are widely used because of the low price of aluminum alloy. For example, the aluminum alloy used in Boeing 767 aircraft accounts for about 865,438+0% of the structural weight of the aircraft. Military aircraft require good operational performance and relatively reduce the amount of aluminum. For example, the F- 15 high-performance fighter with a maximum flight speed of Mach 2.5 uses only 35.5% aluminum alloy. Some aluminum alloys have good low temperature performance, are not brittle in-183 ~-253 [2oc], and can work in liquid hydrogen and liquid oxygen. They do not react with concentrated nitric acid and unsymmetrical dimethylhydrazine, and have good weldability, so they are good materials for manufacturing liquid rockets. The fuel tank, oxidizer tank, inter-tank section, inter-stage section, tail section and instrument cabin of Apollo spacecraft launched by Saturn V carrier rocket are all made of aluminum alloy.

The crew cabin, front fuselage, middle fuselage, rear fuselage, vertical tail, flap, lifting aileron and horizontal tail of the space shuttle are all made of aluminum alloy. The main structural material of various artificial earth satellites and space probes is also aluminum alloy.

The following are the application fields of various models:

1050 extrusion coils, various hoses and fireworks powder for food, chemical and brewing industries.

1060 requires high corrosion resistance and formability, but not high strength, so chemical equipment is its typical use.

1 100 is used to process parts that require good formability and high corrosion resistance but do not require high strength, such as chemical products, food industry devices and storage containers, thin plate processed parts, deep-drawing or spinning concave vessels, weldments, heat exchangers, printed boards, nameplates and reflective appliances.

Packaging heat insulation aluminum foil, heat exchanger.

1 199 electrolytic capacitor foil, optical reflection deposited film.

1350 line, conductive stranded wire, bus bar and transformer belt.

20 1 1 requires screws and machined products with good cutting performance.

20 14 is suitable for occasions requiring high strength and hardness (including high temperature). Aircraft heavy-duty, forgings, thick plates and extruded materials, wheels and structural components, first-stage fuel tanks for multi-stage rockets and spacecraft components, truck frames and suspension system components.

20 17 is the first 2XXX series alloy used in industry. Its application scope is narrow, mainly including rivets, general mechanical parts, structures and structural parts of transport vehicles, propellers and accessories.

Aircraft structures, rivets, missile parts, truck hubs, propeller parts and other structural parts.

2036 automobile body sheet metal parts.

Structural parts and weapon structural parts of 2048 aerospace vehicle.

2 124 space structure.

Piston of 22 18 aircraft engine and diesel engine, cylinder head of aircraft engine, impeller and compressor ring of jet engine.

22 19 space rocket welded oxidant tank, supersonic aircraft skin, structural parts, working temperature -270~300℃. Good weldability, high fracture toughness and high stress corrosion cracking resistance in T8 state.

Soldering 23 19 covered electrode and 22 19 alloy filler solder.

26 18 die forgings and free forgings. Piston and aero-engine parts.

2A0 1 Structural rivet with working temperature less than or equal to 100℃.

Axial compressor blade 2A02 of turbojet engine operating at 200~300℃.

2A06 aircraft structure with working temperature of 150~250℃ and rivets for aircraft structure with working temperature of 125~250℃.

The strength of 2A 10 is higher than that of 2A0 1 alloy, and it is used to manufacture aircraft structural rivets with working temperature less than or equal to 100℃.

2A 1 1 Medium strength structural members, propeller blades, building structural members of vehicles and airplanes. Medium strength bolts and rivets for aircraft.

2A 12 Aircraft skins, partitions, ribs, beams and rivets. Structural parts of buildings and vehicles.

2A 14 Free forgings and die forgings with complex shapes.

2A 16 Spacecraft components working at 250~300℃, welded containers and airtight cabins working at room temperature and high temperature.

2A 17 Aircraft parts with working temperature of 225~250℃.

2A50 medium strength parts with complex shapes.

2A60 aero-engine compressor impeller, guide wheel, fan, impeller, etc.

2A70 aircraft skin, aircraft engine piston, guide wheel, wheel disc, etc.

2A80 aero-engine compressor blades, impellers, pistons, expansion rings and other parts with high working temperature.

2A90 aero-engine piston.

3003 is used to process parts and components that require good formability, high corrosion resistance and good weldability, or work that requires both these properties and higher strength than 1XXX alloy, such as kitchen utensils, food and chemical products processing and storage devices, tanks and tanks for transporting liquid products, and various pressure vessels and pipelines processed with thin plates.

The tank body of 3004 all-aluminum tank requires parts with higher strength than 3003 alloy, chemical products production and storage equipment, sheet metal processing parts, building processing parts, building tools and various lamps and lanterns parts.

3 105 Room partitions, baffles, movable roof boards, gutters, downpipes, plate molding parts, bottle caps, bottle stoppers, etc.

3A2 1 Aircraft fuel tank, oil gallery, rivet line, etc. Industrial equipment such as building materials and food.

Similar to 3003 alloy, 5005 has medium strength and good corrosion resistance. Used as conductor, cooker, dashboard, shell and architectural decoration. The anodic oxide film is brighter than the oxide film on 3003 alloy and is in harmony with the color tone of 6063 alloy.

5050 sheet can be used as refrigerator and freezer lining, automobile air duct, oil pipe and agricultural irrigation pipe; It can also process thick plates, pipes, bars, special-shaped materials and wires.

5052 This alloy has good formability, corrosion resistance, candlelight, fatigue strength and moderate static strength, and can be used to manufacture aircraft fuel tanks and oil pipes, as well as sheet metal parts, instruments, street lamp brackets and rivets, hardware products, etc. of traffic vehicles and ships.

5056 magnesium alloy and cable sheath rivet, zipper, nail, etc. Aluminum clad wire is widely used in processing agricultural insect traps and other occasions requiring high corrosion resistance.

5083 is used in places that need high corrosion resistance, good weldability and medium strength, such as welding parts of ships, automobiles and aircraft plates; Pressure vessel, refrigeration device, TV tower, drilling equipment, transportation equipment, missile parts, armor, etc. Strict fire prevention measures are needed.

5086 is used in places that need high corrosion resistance, good weldability and moderate strength, such as ships, automobiles, airplanes, cryogenic equipment, TV towers, drilling rigs, transportation equipment, missile parts and decks.

5 154 Welded structures, storage tanks, pressure vessels, ship structures and offshore facilities, and transport tanks.

5 182 plate is used to process cans, automobile body panels, steering wheels, reinforcements, brackets and other parts.

5252 is used to manufacture high-strength decorative parts, such as automobile decorative parts. After anodic oxidation, it has a bright and transparent oxide film.

Containers for hydrogen peroxide and other chemical products.

5356 Welding Al-Mg alloy covered electrode and welding wire with magnesium content greater than 3%.

5454 Welded structures, pressure vessels, offshore facilities and pipelines.

5456 steel plate, high-strength welded structure, storage tank, pressure vessel, ship material.

5457 Decorative parts of automobiles and other equipment that have been polished and anodized.

Storage containers for hydrogen peroxide and other chemical products.

5657 Decorative parts of automobiles and other equipment that have been polished and anodized, but in any case, it is necessary to ensure that the materials have a fine grain structure.

5A02 aircraft fuel tank and conduit, welding wire, rivet, ship structural parts.

The strength welded structure, cold stamping parts, welding container and welding wire in 5A03 can be used to replace 5A02 alloy.

5A05 welded structural parts, aircraft skin skeleton.

5A06 welded structure, cold die forgings, welded container stress parts, aircraft skin bone parts.

5A 12 welded structural parts, bulletproof deck.

6005 extruded profiles and pipes are used for structural components that require strength and height greater than 6063 alloy, such as ladders and TV antennas.

6009 automobile body panel.

60 10 plate: automobile body.

606 1 requires various industrial structures to have certain strength, high weldability and corrosion resistance, such as pipes, rods, profiles and plates used for manufacturing trucks, tower buildings, ships, trams, fixtures, mechanical parts and precision machining.

6063 building profiles, irrigation pipes and vehicle extrusion materials, benches, furniture, fences, etc.

Extrusion materials for 6066 forgings and welded structures.

Heavy-duty welded structures, extrusion materials and pipes for automobile industry.

6 10 1 gong * * High-strength bars, conductors, heat dissipation equipment for automobiles, etc.

6 15 1 is used for die forging crankshaft parts, machine parts and production rolling rings, which requires good malleability, high strength and good corrosion resistance.

620 1 high strength conductive rod and wire.

6205 thick plate, pedal and high impact extrusion.

6262 requires threaded high stress parts to have better corrosion resistance than 20 1 1 and 20 17 alloys.

635 1 Extruded structural parts of vehicles, water and oil pipes, etc.

6463 profiles of buildings and various electrical appliances, as well as automotive decorative parts with bright surfaces after anodic oxidation treatment.

6A02 Aircraft engine parts, forgings and die forgings with complex shapes.

7005 extrusion material is used to manufacture welded structures with high strength and fracture toughness, such as trusses, bars and containers of transport vehicles; Large heat exchangers, and parts that cannot be solid-solution treated after welding; It can also be used to make sports equipment, such as tennis rackets and softball bats.

7039 freezing container, cryogenic equipment and storage box, fire-fighting pressure equipment, military equipment, armor plate, missile device.

7049 is used for forging parts which have the same static strength as 7079-T6 alloy and require high stress corrosion cracking resistance, such as aircraft and missile parts-landing gear hydraulic cylinders and extrusions. The fatigue performance of the parts is almost the same as that of 7075-T6 alloy, but the toughness is slightly higher.

Plates, extrusions, free forgings and die forgings of 7050 aircraft structural parts. The requirements of alloy for manufacturing this part are: high spalling corrosion resistance, stress corrosion cracking ability, fracture toughness and fatigue resistance.

Aluminum foil and ultra-thin strip of 7072 air conditioner; Cladding of 22 19, 3003, 3004, 5050, 5052, 5 154, 606 1, 7075, 7475, 7 178 alloy plates and tubes.

7075 is used to manufacture aircraft structures and futures. It requires high-stress structural parts and molds to have high strength and strong corrosion resistance.

7 175 is used for forging high-strength structures of aircraft. T736 material has good comprehensive properties, namely, high strength, spalling corrosion resistance, stress corrosion cracking resistance, fracture toughness and fatigue strength.

7 178 is used to manufacture high compression yield strength parts of aerospace vehicles.

Aluminum clad and non-aluminum clad plates, wing frames, longitudinal beams, etc. For the 7475 fuselage. Other parts with high strength and fracture toughness.

7A04 aircraft skin, screws and stress parts, such as girders, frames, ribs, landing gear, etc.