Aluminum alloy sheet, aluminum alloy bar
First, product selection guide
1) Aluminum alloy sheets can be divided into two categories: non-painted products and painted products according to the surface treatment.
2) According to the painting process, it can be divided into: spray plate product and pre-roll coated plate;
Aluminum alloy sheet specifications
The single-layer aluminum plate may be a pure aluminum plate, a manganese alloy aluminum plate or a magnesium alloy aluminum plate.
The fluorocarbon aluminum plate has two kinds of fluorocarbon sprayed plates and fluorocarbon pre-rolled coated aluminum plates.
Sheet thickness ≥2.0mm
Common aluminum alloy sheet, aluminum alloy rod
7075 aluminum alloy sheet, 7075 aluminum alloy tube, 5052 aluminum alloy wire, 6063 aluminum coil, 2024 aluminum alloy rod, aluminum alloy profile.
Aluminum alloy sheet, aluminum alloy bar product standard
GB/T3880-2006 "General Industrial Aluminum and Aluminum Alloy Sheets and Strips"
GB 5237-2004 "Aluminum Alloy Building Profiles"
1.5 main technical requirements of the product
Indicator requirements (*)
Modulus of elasticity (kN/cm)
Thermal conductivity [W/(m·°C)]
Longitudinal thermal expansion coefficient [mm/(m·°C)]
Melting point (°C)
Coating adhesion (grade)
Coating hardness (H)
Artificial aging resistance (h) (for outdoor use)
Design selection points
The fluorocarbon aluminum plate has two kinds of fluorocarbon sprayed plates and fluorocarbon pre-rolled coated aluminum plates.
1) Fluorocarbon spray plate
(1) Fluorocarbon spray coatings are divided into two coating systems, three coating systems and four coating systems. Generally, multi-layer coating systems should be used.
Two-coating system: consisting of 5-10 μm fluorocarbon primer and 20-30μ fluorocarbon topcoat. The total thickness of the film layer is generally not less than 35μm. Can only be used in normal environments.
Three-coating system: consisting of 5-10 μm fluorocarbon primer, 20-30 μm fluorocarbon paint and 10-20 μm fluorocarbon varnish. The total thickness of the film layer is generally not less than 45 μm. Suitable for serious air pollution, work
Environmentally harsh areas such as industrial areas and coastal areas.
Four-coat system: There are two types of four-coat system. One is to add a 20μm fluorocarbon intermediate paint between the primer and the top coat when using large-particle aluminum powder pigment; the other is to add a polyamide and polyurethane blend between the primer and the top coat. The dense coating improves the corrosion resistance and increases the service life of the fluorocarbon aluminum plate. Because the general fluorocarbon paint is a sponge structure with pores, it cannot prevent the positive and negative ions in the air from penetrating freely to the base of the metal plate. Therefore, this coating system is more suitable for severe environmental pollution, industrial areas and coastal areas.
(2) Curing of fluorocarbon baking varnish: It should be baked with a few coats to make each layer of lacquer completely cured, forming good adhesion, corrosion resistance and fading resistance, avoiding more baking and less baking.
(3) When selecting fluorocarbon lacquered aluminum panels, attention should be paid to the brand and main technical indicators of fluorocarbon lacquer, and the fluororesin content should be ≥ 70%.
2) Fluorocarbon pre-roll coated aluminum sheet
(1) The design concept of pre-rolled aluminum sheet is to combine as many material advantages and process advantages as possible, to minimize the quality factor of human influence, and its quality is more guaranteed than fluorocarbon spray (paint) aluminum sheet.
(2) The fluororesin content can be up to 80%.
(3) The thickness of the coating is generally 25 μm.
2 use introduction
1××× series aluminum sheet
Aluminum alloy plate
1××× series aluminum sheet: representative 1050, 1060, 1100. In all series, the 1××× series is the one with the most aluminum content. The purity can reach above 99.00%. Because it does not contain other technical elements, the production process is relatively simple and the price is relatively cheap. It is the most commonly used series in the conventional industry. Most of the current circulation on the market is the 1050 and 1060 series. The 1000 series aluminum plates are based on the last two Arabic numerals to determine the minimum aluminum content of the series. For example, the last two Arabic numerals of the 1050 series are 50. According to the international brand nomenclature, the aluminum content must reach 99.5% to be qualified products. China's aluminum alloy technical standards [gB/T3880-2006] also clearly stipulates that the aluminum content of 1050 reaches 99.5%. The same reason that the aluminum content of the 1060 series aluminum plate must reach 99.6% or more.
2××× series aluminum sheet
2××× series aluminum sheets: represent 2A16 (LY16) and 2A06 (LY6). The 2××× series aluminum plates are characterized by high hardness, among which the original content of copper is the highest, about 3-5%. The 2××× series aluminum plates are aerospace aluminum materials and are currently not commonly used in conventional industries. At present, there are fewer manufacturers producing 2××× series aluminum plates in China. Quality is still not comparable to foreign countries. Currently imported aluminum sheets are mainly supplied by Korean and German manufacturers. With the development of China's aerospace industry, the 2××× series of aluminum sheet production technology will be further improved.
3××× series aluminum sheet
3××× series aluminum sheet: mainly for 3003, 3004 and 3A21. It can also be called a rust-proof aluminum plate. China's 3××× series aluminum plate production process is relatively excellent. The 3××× series aluminum plate is composed of manganese as the main component and the content is between 1.0 and 1.5%. It is a series with better anti-rust function. Conventional applications in the humid environment of air conditioners, refrigerators, and car bottoms, the price is higher than the 1××× series, which is a more common alloy series.
4××× series aluminum sheet
4××× series aluminum sheet: the representative is 4A01. The 4××× series of aluminum plates belong to a series with a high silicon content. Typically the silicon content is between 4.5 and 6.0%. It belongs to building materials, mechanical parts, forging materials, welding materials; low melting point, good corrosion resistance. Product Description: It has the characteristics of heat resistance and wear resistance.
5××× series aluminum sheet
5××× series aluminum sheets: represent 5052, 5005, 5083, 5A05 series. The 5××× series aluminum plate belongs to the more common alloy aluminum plate series. The main element is magnesium, and the magnesium content is between 3-5%. Also known as aluminum-magnesium alloy. The main features are low density, high tensile strength and high elongation. The weight of aluminum-magnesium alloy is lower than other series under the same area. Therefore, it is commonly used in aviation, such as aircraft fuel tanks. It is also widely used in conventional industries. The processing technology is continuous casting and rolling, which belongs to the hot-rolled aluminum plate series and can be used for oxidation deep processing. In China, 5××× series aluminum plates are one of the more mature aluminum plate series.
6××× series aluminum sheet
6××× series aluminum sheet: representing 6061. It mainly contains magnesium and silicon, so it concentrates on the advantages of 4××× series and 5××× series. 6061 is a cold-processed aluminum forged product, which is suitable for applications with high corrosive and oxidizing requirements. Good usability, excellent interface characteristics, easy coating and good processability. Can be used on low pressure weapons and aircraft joints.
7××× series aluminum sheet
7××× series aluminum sheet: on behalf of 7075. It mainly contains zinc. Also belonging to the aviation series, it is aluminum magnesium zinc copper alloy, heat treatable alloy, belongs to super hard aluminum alloy, has good wear resistance, 7075 aluminum plate is stress-relieved, will not deform and warp after processing. All super large and thick The 7075 aluminum plate is all ultrasonically detected to ensure no blisters and impurities. The 7075 aluminum plate has high thermal conductivity, which can shorten the molding time and improve work efficiency. The main feature is that the high hardness 7075 is a high hardness, high strength aluminum alloy, which is commonly used in the manufacture of aircraft.
8××× series aluminum sheet
8××× series aluminum sheet: 8011 aluminum sheet is more commonly used, belonging to other series. It is an aluminum plate that is mainly used as a cap, and is also applied to a heat sink. Most of the applications are aluminum foil. It is a less common series in business.
3 commonly used aluminum alloy sheet, aluminum alloy rod grade table:
1060 requires high corrosion resistance and formability, but the strength is not high.
1100 is used for processing parts that require good formability and high corrosion resistance but do not require high strength, such as food industry equipment and storage containers, sheet metal parts, deep drawing or spinning concave vessels, welded parts , heat exchangers, printing plates, nameplates, reflective appliances
1145 Packaging and insulation foil, heat exchanger
1199 electrolytic capacitor foil, optical reflective deposition film
1350 wire, conductive strand, bus bar, transformer strip
2011 screws and machined products requiring good cutting performance
2014 is used in applications where high strength and hardness (including high temperature) are required. Aircraft heavy duty, forgings, slabs and extruded materials, wheels and structural components, multi-stage rocket first stage fuel tank and spacecraft parts, truck frame and suspension system parts
2017 is the first 2XXX series alloy to be used in industrial applications. The current range of applications is narrow, mainly for rivets, general mechanical parts, structural and transport structural parts, propellers and accessories.
2024 Aircraft structures, rivets, missile components, truck hubs, propeller components and other structural components
2036 car body sheet metal parts
2048 Aerospace structural components and weapons structural parts
2124 Aerospace structural components
2218 aircraft engine and diesel engine pistons, aircraft engine cylinder heads, jet engine impellers and compressor rings
2219 Space rocket welding oxidizer tank, supersonic aircraft skin and structural parts, operating temperature is -270 ~ 300 degrees Celsius. Good weldability, high fracture toughness, high resistance to stress corrosion cracking in T8 state
2319 Welding electrode and filler solder for 2219 alloy
2618 die forgings and free forgings. Piston and aero engine parts
2A01 Structural rivet with working temperature less than or equal to 100 degrees Celsius
2A02 Axial compressor blades for turbojet engines operating at temperatures from 200 to 300 degrees Celsius
2A06 Aircraft structure rivets with an operating temperature of 150 to 250 degrees Celsius and an operating temperature of 125 to 250 degrees Celsius
2A10 is higher than 2A01 alloy and is used to manufacture aircraft structural rivets with working temperature less than or equal to 100 degrees Celsius
Medium-strength structural parts, propeller blades, transportation vehicles and building structural parts of the 2A11 aircraft. Medium strength bolts and rivets for aircraft
2A12 Aircraft skins, bulkheads, ribs, spars, rivets, etc., construction and transportation structural components
2A14 Free forgings and die forgings with complex shapes
2A16 Aerospace aircraft parts with operating temperatures of 250 to 300 degrees Celsius, welded containers and airtight cockpits operating at room temperature and temperature
2A17 Aircraft parts with a working temperature of 225~250 Celsius
2A50 Medium-strength parts with complex shapes
2A60 aircraft engine compressor wheel, wind deflector, fan, impeller, etc.
2A70 aircraft skin, aircraft engine piston, wind deflector, roulette, etc.
2A80 Aero Engine Compressor Blades, Impellers, Pistons, Rings and Other Parts with High Operating Temperatures
2A90 aero engine piston
3003 is used for processing parts parts that require good formability, high corrosion resistance, or require both these properties and work with higher strength than 1XXX series alloys, such as kitchen utensils, food and chemical products. Tanks and tanks for transporting liquid products, various pressure vessels and pipes processed by thin plates with storage devices
3004 all-aluminum can body requires higher strength parts than 3003 alloy, chemical production and storage equipment, sheet metal processing parts, building processing parts, construction tools, various lighting parts
3105 Room partitions, baffles, movable floor panels, gutters and downpipes, sheet forming parts, caps, stoppers, etc.
3A21 Aircraft fuel tank, oil pipeline, rivet wire, etc.; industrial materials such as building materials and food
Similar to the 3003 alloy, the 5005 has medium strength and good corrosion resistance. Used as conductors, cookware, instrument panels, shells and architectural trims. The anodized film is brighter than the oxide film on the 3003 alloy and is consistent with the color tone of the 6063 alloy.
5050 sheet can be used as the inner liner of refrigerator and refrigerator, automobile air pipe, oil pipe and agricultural irrigation pipe; can also process thick plate, pipe, bar, profile and wire, etc.
5052 This alloy has good formability, corrosion resistance, candle resistance, fatigue strength and medium static strength. It is used in the manufacture of aircraft fuel tanks, oil pipes, and sheet metal parts for transportation vehicles and ships. Instruments, street lamp brackets and rivets , hardware products, etc.
5056 magnesium alloy and cable sheath rivets, zippers, nails, etc.; aluminum-clad wire is widely used in processing agricultural insect traps, and other occasions requiring high corrosion resistance
5083 For applications requiring high corrosion resistance, good weldability and moderate strength, such as ship, automotive and aircraft welded parts; pressure vessels requiring severe fire protection, refrigeration, television towers, drilling equipment, transportation Transportation equipment, missile components, armor, etc.
5086 For applications requiring high corrosion resistance, good weldability and moderate strength, such as ships, automobiles, airplanes, cryogenic equipment, television towers, drilling rigs, transportation equipment, missile parts and decks, etc.
5154 Welded structures, tanks, pressure vessels, ship structures and offshore installations, transport tanks
5182 Sheets for processing cans, automotive body panels, control panels, reinforcements, brackets, etc.
5252 Used to make decorative parts with high strength, such as decorative parts for automobiles. Bright and transparent oxide film after anodization
5254 Hydrogen peroxide and other chemical product containers
5356 Aluminum-magnesium alloy electrode and wire with a magnesium content greater than 3%
5454 welded structure, pressure vessel, marine facility pipeline
5456 armor plate, high-strength welded structure, storage tank, pressure vessel, ship material
5457 Polished and anodized automotive and other decorative parts
5652 Hydrogen peroxide and other chemical product storage containers
5657 Polished and anodized automotive and other decorative parts, but in any case must ensure that the material has a fine grain structure
5A02 Aircraft fuel tanks and conduits, welding wire, rivets, marine structural parts
5A03 medium strength welded structure, cold stamped parts, welded container, welding wire, can be used to replace 5A02 alloy
5A05 welded structural parts, aircraft skin skeleton
5A06 Welded structure, cold forged parts, welded parts, welded parts, aircraft skin parts
5A12 welded structural parts, bulletproof deck
6005 extruded profiles and tubes for structural parts requiring a height greater than 6063 alloy, such as ladders, TV antennas, etc.
6009 car body panels
6010 Sheet: Car body
6061 requires various industrial structures with certain strength, weldability and high corrosion resistance, such as tubes, rods, profiles and plates for the manufacture of tower buildings, ships, trams, furniture, mechanical parts, precision machining, etc.
6063 Industrial profiles, architectural profiles, irrigation pipes and extruded materials for vehicles, stands, furniture, fences, etc.