Classification and application of aluminum alloy
1XXX pure aluminum description 1xxx series represents10501060 1x xx series aluminum plates are also called pure aluminum plates, and1xxxx series belongs to the series with the most aluminum content in all series. The purity can reach above 99.00%. Because it does not contain other technical elements, the manufacturing process is relatively simple and the price is relatively cheap. It is the most commonly used series in conventional industries at present. At present, most of them are 1050 and 1060 series. The minimum aluminum content of 1XXX series aluminum plates is determined according to the last two Arabic numerals. For example, the last two digits of the 1050 series are 50. According to the naming principle of international brands, the aluminum content must reach more than 99.5% to be a qualified product. China's aluminum alloy technical standard (gB/T3880-2006) also clearly stipulates that the aluminum content of 1050 should reach 99.5%. Similarly, the aluminum content of 1060 series aluminum plates must reach above 99.6%.
Uses: 1050 used for extrusion coils, hoses and fireworks powder in food, chemical and brewing industries.
1060 requires high corrosion resistance and formability, but not high strength. 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.
1 145 packaging and heat insulation aluminum foil, heat exchanger
1 199 electrolytic capacitor foil, optical reflection deposition film
1350 wires, conductive stranded wires, buses and transformer belts
2xxx aluminum and copper show that 2xxx series aluminum plates represent 2A16 (LY16) 2A06 (Ly6) 2 XXX series aluminum plates are characterized by high hardness, in which the original copper content is the highest, about 3-5%. 2XXX series aluminum plates belong to aviation aluminum materials, which are not often used in conventional industries at present. At present, there are few domestic manufacturers producing 2XXX series aluminum plates. The quality can't compare with that of foreign countries. At present, imported aluminum plates are mainly provided by Korean and German manufacturers. With the development of China's aerospace industry, the production technology of 2XXX series aluminum plates will be further improved.
Application: 20 1 1 screws and machined products with good cutting performance are required.
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 alloy used in industry. At present, its application scope is narrow, mainly including rivets, general mechanical parts, structural parts of structures and 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 aerospace 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.
23 19 alloy covered electrode and filler solder for welding and drawing.
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 with working temperature of 200~300℃
2A06 aircraft structure with working temperature of 150~250℃ and aircraft structure rivet 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 transport 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 Complicated 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
3xxx aluminum manganese display 3xxx series aluminum plate represents 3003A2 1. It can also be called rust-proof aluminum plate. Domestic 3XXX series aluminum plate production technology is excellent. The main component of 3XXX series aluminum plates is manganese. The content is between 1.0- 1.5. This is a series with good anti-rust function. Commonly used in air conditioners, refrigerators, car bottoms and other humid environments, the price is higher than 1XXX series, which is a relatively common alloy series.
Application field 3003 is used to process parts 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 partition, baffle, movable roof board, downpipe, plate molding parts, bottle caps, bottle stoppers, etc.
3A2 1 Aircraft fuel tank, oil gallery, rivet line, etc. Building materials and food and other industrial equipment.
4xxx aluminum and silicon description 4xxx series aluminum plates are represented by 4A0 1 4XXX series aluminum plates, which belong to a series with high silicon content. Generally, the silicon content is between 4.5 and 6.0%. Belonging to building materials, mechanical parts, forging materials and welding materials; Low melting point and good corrosion resistance product description: It has the characteristics of heat resistance and wear resistance.
Application field 4032 Forging material, the welding material can inhibit the thermal expansion rate and improve its wear resistance due to the addition of Si, and the addition of a small amount of Cu and M can improve the heat resistance, which is suitable for forging piston materials.
4043 has low solubility and is mainly used for welding covered electrode and brazing covered electrode. In addition, due to the dispersion of Si particles, this alloy will present a gray film after anodic oxidation, which is often used in building exterior panels.
5xxx aluminum and magnesium description 5xxx series represents 5052.5005.5083.5A05 series. The 5XXX series aluminum plate belongs to the commonly used alloy aluminum plate series, the main element is magnesium, and the magnesium content is between 3-5%. It can also be called Al-Mg alloy. Its main characteristics are low density, high tensile strength and high elongation. In the same area, the weight of aluminum-magnesium alloy is lower than other series, so it is often used in aviation, such as aircraft fuel tanks. It is also widely used in traditional industries. The processing technology is continuous casting and rolling, which belongs to hot-rolled aluminum plate series and can be oxidized for deep processing. In China, 5XXX series aluminum plates belong to one of the more mature aluminum plates.
Application field 5005 is similar to 3003 alloy, with 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, which 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, meters, 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.
5254 containers for hydrogen peroxide and other chemical products
5356 Welding Al-Mg alloy covered electrode and welding wire with magnesium content greater than 3%
Welding structures, pressure vessels and pipelines of 5454 offshore facilities.
5456 steel plate, high-strength welded structure, storage tank, pressure vessel and ship material.
5457 Decorative parts of automobiles and other equipment that have been polished and anodized.
5652 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
6 XXX aluminum
magnesium
Silicon shows that 6XXX series represents 606 1 and mainly contains magnesium and silicon, so it combines the advantages of 4XXX series and 5XXX series. 606 1 is a cold-treated aluminum forging product, which is suitable for applications requiring high corrosion resistance and oxidation resistance. Good usability, excellent interface characteristics, easy coating and good processability. Can be used for low-voltage weapons and aircraft joints. 606 1 General features: excellent interface characteristics, easy painting, high strength, good usability and strong corrosion resistance. Typical uses of 606 1 aluminum: aircraft parts, camera parts, couplers, ship parts and hardware, electronic parts and connectors, decorative or various hardware, hinge heads, magnetic heads, brake pistons, hydraulic pistons, electrical accessories, valves and valve parts.
Usage: 6005 extruded profiles and pipes are used for structural parts with strength and height greater than 6063 alloy, such as ladders and TV antennas.
6009 automobile body panel
60 10 table: automobile body
606 1 6082 requires various industrial structures to have certain strength, high weldability and corrosion resistance, such as pipes, bars, profiles and plates used for manufacturing trucks, tower buildings, ships, trams, furniture, mechanical parts and precision machining.
Building profiles, irrigation pipes and extruded materials for vehicles, benches, furniture and fences.
Extrusion materials for 6066 forgings and welded structures
6070 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 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 is a threaded high stress part, and its corrosion resistance is better than that of 20 1 1 and 20 17 alloys.
635 1 Extruded structural parts of vehicles, pipes for water and oil, 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.
7 XXX aluminum and zinc show that 7 XXX series represents 7075, mainly containing zinc. It also belongs to the aviation series. It is an Al-Mg-Zn-Cu alloy, which is a heat treatable alloy and belongs to superhard aluminum alloy. It has good wear resistance. 7075 aluminum plate eliminates stress and will not deform or warp after processing. Ultra-large and ultra-thick 7075 aluminum plates are all tested by ultrasonic wave to ensure no sand holes and impurities. 7075 aluminum plate has high thermal conductivity, which can shorten the molding time and improve the working efficiency. The main feature is that 7075 is an aluminum alloy with high hardness and strength, which is often used to manufacture aircraft structures and futures. It requires the manufacture of high-stress structural parts and molds with high strength and strong corrosion resistance. At present, it basically depends on imports, and the production technology needs to be improved. A foreign company in our company has suggested that the annealing of domestic 7075 aluminum plate is uneven, and the hardness of aluminum plate surface and interior is inconsistent.
Application field 7005 Extruded materials are 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 refrigerated containers, cryogenic instruments and storage boxes, fire-fighting pressure equipment, military equipment, armor plates and missile devices.
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 such parts 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, high-stress structural parts and molds, with high strength and 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.
8XXX Other application fields 8XXX series is often used as 80 1 1 and belongs to other series. The main function of aluminum plate is also used in radiator, mostly aluminum foil. Not very common.
9XXX standby application field 9XXX series belongs to standby series, and now the technology is so developed. In order to cope with the appearance of aluminum plates containing other alloying elements, the International Federation of Aluminum Plate and Strip specially marked 9Xxx series as a standby series, waiting for another new variety to appear to fill the blank of 9Xxx series.