Learn something about the different aluminum alloys
The specific gravity of aluminum is light, the springback during molding is small, the strength is relatively high, it is close to steel, and the plasticity is good. When the product is more complex, it is easier to control than stainless steel, and has electrical conductivity, thermal conductivity and corrosion resistance. For the application needs of different fields, some alloying elements will be added in the production stage to form different types of aluminum alloys and improve the performance of #aluminummaterials.
According to the processing method, #aluminumalloys can be divided into deformed aluminum alloys and cast aluminum alloys. The numbers of aluminum and aluminum alloys are mainly divided into nine series.
Next, let's briefly learn something about the different aluminum alloys with #FenanAluminum #FOENaluminum.
How to express the combined number
International grades (with four Arabic numerals, which are commonly used now):
1. 1XXX means pure aluminum series with more than 99%, such as 1050, 1100
2. 2XXX means aluminum-copper alloy series, such as 2014
3. 3XXX means aluminum-manganese alloy series, such as 3003
4. 4XXX means aluminum-silicon alloy series, such as 4032
5. 5XXX means aluminum-magnesium alloy series, such as 5052
6. 6XXX means aluminum-magnesium-silicon alloy series, such as 6061, 6063
7. 7XXX means aluminum-zinc alloy series such as 7001
8. 8XXX indicates an alloy system other than the above
9. 9××× series are: spare alloy group
I. 1XXX means pure aluminum series with more than 99%, such as 1050, 1100
The first series of aluminum has good formability and surface treatment, and its corrosion resistance is good in aluminum alloys. Its strength is lower, and the higher the purity, the lower the strength. Among all the series, the 1000 series belongs to a series with more aluminum content, and the purity can reach more than 99.00%. The 1000 series aluminum plate determines the low aluminum content of this series according to the last two Arabic numerals. For example, the last two Arabic numerals of the 1050 series are 50. According to the international brand naming principle, the aluminum content must reach more than 99.5% to be qualified products.
A series of aluminum is relatively soft, mainly used for decorative parts or interior parts. The commonly used mobile phones are 1050, 1070, 1080, 1085, 1100, which are used for simple extrusion (no bending). Among them, 1050 and 1100 can be used for chemical sanding, smooth, matte, and normal effects. There are The more obvious material texture, the coloring effect is good; 1080 and 1085 mirror aluminum is often used for bright characters, matte effect, no obvious material texture.
Scope of application: High-purity aluminum (aluminum content above 99.9%) is mainly used for scientific experiments, chemical industry and special purposes. 1060 as a conductive material IACS guarantees 61%, and 6061 wire is used when strength is required; 1085 1080 1070 1050 1N30 1085 1080 1070 1050 - Good formability and surface treatment, and its corrosion resistance is the best among aluminum alloys. Because it is pure aluminum, its strength is low, and the higher the purity, the lower the strength. Daily necessities, aluminum plates, lighting fixtures, reflectors, decorations, chemical industry containers, heat sinks, melting wires, conductive materials.
1050: Extrusion coils for food, chemical and brewing industries, various hoses, fireworks powder.
1060: For occasions requiring high corrosion resistance and formability, but not demanding high strength, chemical equipment is its typical use.
1100: For processing parts that require good formability and high corrosion resistance but do not require high strength, such as chemical products, food industry equipment and storage containers, sheet metal processing, deep drawing or spinning concave vessels , Welding parts, heat exchangers, printed boards, nameplates, reflectors.
1145: Packaging and insulating foils, heat exchangers.
1199: Electrolytic capacitor foils, optically reflective deposition films.1350: Wires, Conductive Strands, Busbars, Transformer Strips.
II. 2XXX means aluminum-copper alloy series, such as 2014
It is characterized by high hardness, but poor corrosion resistance. Among them, the original content of copper is high. 2000 series aluminum alloys represent 2024, 2A16, and 2A02. The copper content of 2000 series aluminum plates is about 3-5%. 2000 series aluminum rods belong to aviation aluminum materials, which are used as structural materials and are not often used in conventional industries. For example: 2011 alloy, pay attention to safety protection during the smelting process (harmful gas will be generated). The 2014 alloy is used in the aerospace industry and has high strength. The 2017 alloy is a little less strong than the 2014 alloy, but easier to machine. 2014 can be heat treated to strengthen.
Disadvantages: serious intergranular corrosion tendency
Application range: aviation industry (2014 alloy), screws (2011 alloy) and industries with high temperature (2017 alloy).
2011: Screws and machined products requiring good cutting performance.
2014: For applications requiring high strength and hardness (including high temperature). Aircraft heavy duty, forgings, plate and extruded materials, wheels and structural elements, multi-stage rocket first stage fuel tanks and spacecraft parts, truck frames and suspension system parts.
2017: It is the first 2XXX series alloy to obtain industrial application. As of 2013, its application range is narrow, mainly for rivets, general mechanical parts, structural and transportation structural parts, propellers and accessories.
2024: Aircraft structures, rivets, missile components, truck hubs, propeller elements and a variety of other structures.
2036: Automotive body sheet metal.
2048: Aerospace structural parts and weapon structural parts.
2124: Aerospace Structures.
2218: Aircraft and Diesel Engine Pistons, Aircraft Engine Cylinder Heads, Jet Engine Impellers and Compressor Rings.
2219: Welding oxidant tank for aerospace rocket, skin and structural parts of supersonic aircraft, working temperature is -270~300 degrees Celsius. Good weldability, high fracture toughness, and high resistance to stress corrosion cracking in T8 state.
2319: Electrode and filler solder for soldering alloy 2219.
2618: Die forgings and free forgings. Pistons and Aero Engine Parts.
2A01: Structural rivets with working temperature less than or equal to 100 degrees Celsius.
2A02: Axial compressor blades for turbojet engines operating at temperatures between 200 and 300 degrees Celsius.
2A06: Aircraft structure with a working temperature of 150~250 degrees Celsius and aircraft structure rivets with a working temperature of 125~250 degrees Celsius.
2A10: The strength is higher than that of the 2A01 alloy, and it is used to manufacture aircraft structural rivets whose working temperature is less than or equal to 100 degrees Celsius.
2A11: Medium-strength structural parts for aircraft, propeller blades, transportation vehicles and building structural parts. Medium strength bolts and rivets for aircraft.
2A12 aircraft skins, bulkheads, ribs, spars, rivets, etc., structural parts of construction and transportation vehicles.
2A14: Free forgings and die forgings with complex shapes.
2A16: Spacecraft parts with a working temperature of 250~300 degrees Celsius, welding containers and airtight cockpits working at room temperature and high temperature.
2A17: Aircraft parts with a working temperature of 225~250 degrees Celsius.
2A50: Medium strength parts with complex shapes.
2A60: Aircraft engine compressor wheel, wind guide wheel, fan, impeller, etc.
2A70: Aircraft skins, aircraft engine pistons, wind guide wheels, roulettes, etc.
2A80: Aero-engine compressor blades, impellers, pistons, expanding rings and other parts with high working temperature.
2A90: Aero engine piston.
III. 3XXX means aluminum-manganese alloy series, such as 3003
3000 series aluminum rods are mainly composed of manganese. 3000 series aluminum alloys are mainly 3003, 3105 and 3A21. The content is between 1.0-1.5, which is a series with better anti-rust function. Commonly used as tanks and tanks for liquid products, construction parts, construction tools, various lighting components, and various pressure vessels and pipes for sheet processing. Good formability, weldability and corrosion resistance.
Disadvantages: Low strength, but can be strengthened by cold work hardening. Coarse grains are easily generated during annealing.
Scope of application: seamless oil guide pipes (3003 alloy) used in aircraft, cans (3004 alloy).
3003: For processing parts that require good formability, high corrosion resistance, good weldability, or work that requires both these properties and higher strength than 1XXX series alloys, such as kitchenware, food and chemical products Processing and storage devices, tanks and tanks for transporting liquid products, various pressure vessels and pipes made of sheet metal.
3004: All-aluminum pop-top can body requires parts with higher strength than 3003 alloy, chemical product production and storage devices, sheet metal processing parts, construction processing parts, construction tools, various lighting components.
3105: Room dividers, baffles, movable room panels, gutters and downspouts, sheet metal forming parts, bottle caps, bottle stoppers, etc.
3A21: Aircraft fuel tanks, oil conduits, rivet wires, etc.; industrial equipment such as building materials and food, etc.
IV. 4XXX means aluminum-silicon alloy series, such as 4032
Usually, the silicon content is between 4.5-6.0%, and the higher the silicon content, the higher the strength. The 4000 series aluminum rods are represented by 4A01 and 4000 series aluminum plates, which belong to the series with higher silicon content. Good soup flow, less solidification shrinkage, it belongs to building materials, mechanical parts, forging materials, welding materials; low melting point, good corrosion resistance, heat resistance and wear resistance.
4032 has good heat resistance and abrasion resistance, and has a small thermal expansion coefficient. Piston, cylinder head
4043 has less solidification and shrinkage, and it has a natural gray color after anodizing with sulfuric acid. Dissolving wires, building panels.
V. 5XXX means aluminum-magnesium alloy series, such as 5052
5000 series aluminum rods belong to the more commonly used alloy aluminum plate series, the main element is magnesium, and the magnesium content is between 3-5%. 5000 series aluminum alloys represent 5052, 5005, 5083, 5A05 series. Also known as aluminum-magnesium alloy. The main features are low density, high tensile strength and high elongation. Under the same area, the weight of aluminum-magnesium alloy is lower than that of other series, and it is also widely used in conventional industries.
Applications: lawn mower handles, aircraft fuel tank conduits, body armor. The strength of 5005 is the same as that of 3003. It has good processability, weldability and corrosion resistance. After anodizing, it is well decorated and processed. It is commensurate with the color of 6063 profiles. 5052 is the most representative alloy of medium strength, with good corrosion resistance, weldability and formability, especially high fatigue strength, good seawater resistance, general sheet metal, ships, vehicles, construction, bottle caps, honeycomb panels.
5005: Similar to 3003 alloy, with moderate strength and good corrosion resistance. Used as conductors, cookware, instrument panels, shells and architectural trim. The anodized film is brighter than the oxide film on the 3003 alloy and harmonizes with the tone of the 6063 alloy.
5050: The thin plate can be used as the lining plate of refrigerators and refrigerators, automobile gas pipes, oil pipes and agricultural irrigation pipes; it can also be processed into thick plates, pipes, bars, special-shaped materials and wires.
5052: This alloy has good formability, corrosion resistance, candleability, fatigue strength and moderate static strength. It is used to manufacture aircraft fuel tanks, fuel pipes, and sheet metal parts for transportation vehicles and ships, instruments, street lamp brackets and Rivets, hardware products, etc.
5056: magnesium alloy and cable jacket rivets, zippers, nails, etc.; aluminum-coated wire is widely used in processing agricultural insect trap covers and other occasions where high corrosion resistance is required.
5083: For occasions requiring high corrosion resistance, good weldability and moderate strength, such as welding parts of ships, automobiles and aircraft panels; pressure vessels, refrigeration installations, TV towers, drilling equipment, Transportation equipment, missile elements, armor, etc.
5086: Used in occasions requiring high corrosion resistance, good weldability and moderate strength, such as ships, automobiles, aircraft, cryogenic equipment, TV towers, drilling rigs, transportation equipment, missile parts and decks, etc.
5154: Welded structures, storage tanks, pressure vessels, ship structures and offshore installations, transport tanks.
5182: Sheets are used for processing can lids, auto body panels, control panels, reinforcements, brackets and other components.
5252: Used to manufacture decorative parts with high strength, such as decorative parts for automobiles. It has a bright and transparent oxide film after anodization.
5254: Hydrogen peroxide and other chemical products container welding aluminum-magnesium alloy electrodes and wires with magnesium content greater than 3%.
5454: Welded structures, pressure vessels, piping for marine installations.
5456: Armor plates, high-strength welded structures, storage tanks, pressure vessels, marine materials.
5457: Polished and anodized trim parts for automobiles and other equipment.
5652: Storage containers for hydrogen peroxide and other chemical products.
5657: Polished and anodized trim parts for automobiles and other equipment, but in any case it is necessary to ensure that the material has a fine grain structure.
5A02: Aircraft fuel tanks and conduits, welding wires, rivets, ship structures.
5A03: Medium strength welded structure, cold stamped parts, welding vessel, welding wire, can be used to replace 5A02 alloy.
5A05: Welded structural parts, aircraft skin skeleton.
5A06: Welded structures, cold forged parts, welded and drawn vessel stressed parts, aircraft skin bone parts.
5A12: Welded structural parts, bulletproof deck.
VI. 6XXX means aluminum-magnesium-silicon alloy series, such as 6061, 6063
The 6000 series aluminum alloy represents 6061, which mainly contains two elements, magnesium and silicon, so the 4000 series and the 5000 series are concentrated. Good workability, easy to coat, and good workability. 6061 and 6063 are more used in mobile phones, of which 6061 has a higher strength than 6063. By casting, it can cast more complicated structures, and can be used as parts with buckles, such as battery covers.
6005: Extruded profiles and pipes, used for high strength requirements.
6063: Alloy structural parts, such as ladders, TV antennas, etc.
6009: Automotive body panels.
6010: Sheets: Automotive Body.
6061: Various industrial structures requiring certain strength, high weldability and high corrosion resistance, such as pipes, rods and shapes for manufacturing trucks, tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc. , Plate.
6063: Industrial profiles, building profiles, irrigation pipes and extruded materials for vehicles, benches, furniture, fences, etc.
6066: Forgings and Welded Structural Extrusions.
6070: Extruded materials and tubes for heavy duty welded structures and the automotive industry.
6101: High-strength bars, electrical conductors and radiators for buses, etc.
6151: It is used for die forging crankshaft parts, machine parts and rolling rings, which are required to have good forgeability, high strength and good corrosion resistance.
6201: High-strength conductive rods and wires.
6205: Thick plates, pedals and high-impact extrusions.
6262: Threaded high-stress parts requiring corrosion resistance superior to 2011 and 2017 alloys.
6351: Extruded structural parts of vehicles, pipelines for water, oil, etc.
6463: Architectural and various appliance profiles, and automotive trim parts with a bright surface after anodizing.
6A02: Aircraft engine parts, forgings and die forgings with complex shapes.
VII. 7XXX means aluminum-zinc alloy series such as 7001
Mainly contains zinc element, 7000 series aluminum alloy represents 7075. It also belongs to the aviation series. It is an aluminum-magnesium-zinc-copper alloy, a heat-treatable alloy, and a hard aluminum alloy with good wear resistance.
7072 has a low electrode potential and is mainly used for anti-corrosion covering materials, and is also suitable for heat exchanger fins. The skin of the aluminum alloy plate, the heat sink.
One of the alloys with the highest strength among the 7075 aluminum alloys, but the corrosion resistance is not good. The covering with 7072 can improve its corrosion resistance, but the cost increases. Aircraft and ski poles 7050 7050 Alloy with improved 7075 hardenability, good resistance to stress corrosion cracking, suitable for thick plates, forged aircraft, high-speed rotary bodies Back to the strength close to the base metal. Corrosion resistance is also very good. Vehicles, other land structures, aircraft.
7003 is an extruded alloy for welding structure. Its strength is slightly lower than that of 7N01, but its extrudability is good. It can be used as a large shape with thin meat. Vehicle, locomotive wheel outer ring.
7005: Extruded materials for the manufacture of welded structures that require both high strength and fracture toughness, such as trusses, rods, and vessels for transportation vehicles; large heat exchangers, and those that cannot be solidified after welding Processed parts; also used in the manufacture of sports equipment such as tennis rackets and softball bats.
7039: Refrigerated containers, cryogenic equipment and storage tanks, fire-fighting pressure equipment, military equipment, armor plates, missile installations.
7049: Used for forging parts with the same static strength as 7079-T6 alloy but requiring high resistance to stress corrosion cracking, such as aircraft and missile parts - landing gear hydraulic cylinders and extrusions. The fatigue properties of the parts are roughly equal to those of the 7075-T6 alloy, while the toughness is slightly higher.
7050: Plates, extrusions, free forgings and die forgings for aircraft structural parts. The requirements for the alloy to manufacture such parts are: high resistance to exfoliation corrosion, stress corrosion cracking, fracture toughness and fatigue resistance.
7072: Aluminum foil and ultra-thin strip for air conditioners; cladding of 2219, 3003, 3004, 5050, 5052, 5154, 6061, 7075, 7475, 7178 alloy sheets and pipes.
7075: It is used for the manufacture of high-stress structural parts and molds that require high strength and strong corrosion resistance for aircraft structures and futures.
7175: High-strength structures for forging aircraft. T736 material has good comprehensive properties, that is, high strength, resistance to exfoliation corrosion and stress corrosion cracking, fracture toughness, and fatigue strength.
7178: Parts requiring high compressive yield strength for the manufacture of aerospace vehicles.
7475: Aluminum-clad and unclad sheets for fuselage, wing frames, stringers, etc. Other parts that have both high strength and high fracture toughness.
7A04: Aircraft skins, screws, and stress components such as girder stringers, bulkheads, ribs, landing gear, etc.
VIII. 8XXX indicates an alloy system other than the above
8000 series aluminum alloys are more commonly used in 8011 series, which belong to other series. Most of them are used as aluminum foil, that is, the kind of aluminum foil used for pills. It is not commonly used in the production of aluminum rods.
IX. 9××× series are: spare alloy group
9XXX Spare application field 9XXX series belongs to spare series, and technology is so advanced now. In order to cope with the emergence of aluminum plates containing other alloying elements, the International Association of Aluminum Plates and Strips has specially indicated that 9XXX series is spare series, waiting for another new variety to appear to fill 9XXX. Series of blanks.
Thanks for your attention
Fenan(FOEN) Aluminum Co.,Ltd.
(Aluminum factory/manufacturer/supplier/international trader ,since 1988)
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