The Use of Aluminum Alloy in Aerospace Automobile Shipbuilding Industry

1. The Use of Aluminum Alloy in Aerospace Automobile Shipbuilding Industry Abstract: 2xxx, 5xxx and 6xxx are widely used in transportation field. 2A12 is a typical hard aluminum alloy for aircraft structures, rivets, truck wheels. 5454 aluminum sheet is also a main material for tank truck and vehicles. 5383 aluminum has better corrosion resistance. 2A12 Aluminium for Sale 2A12 Aluminum is a typical hard aluminum alloy with moderate aluminum, copper and magnesium content. Its alloy composition ratio is reasonable, and the overall performance is good. 2A12 aluminum plates are also the largest in terms of global duraluminum consumption. 2A12 aluminum alloy features high strength, a certain degree of heat resistance, which can be used as working parts below 150 ℃.At temperatures higher than 125 ℃, its strength is higher than that of 7075 alloys.

2. The forming properties in the hot state, annealing and new quenching state are relatively good, and the heat treatment strengthening effect is significant, but the heat treatment process requirements are strict. Its corrosion resistance is poor, but it can be effectively protected by covering with pure aluminum; it is easy to produce cracks during welding, but it can be welded or riveted by special technology. 2A12 aluminum sheet is is very suitable for the production requirements of the machinery manufacturing industry. It is also widely used in aircraft structures, rivets, truck wheels. More and more manufacturers are beginning to use 2A12 aluminum sheet as their raw material. Pros of 2A12 Aluminium 2A12 aircraft aluminum is high-strength duralumium that its Mg content is increased to 1.5%, and it contains higher Mn content. The high temperature strength of this duralumin is higher than that of standard duraluminum and super duraluminum. The 2A12-T4 alloy aluminum plate has high strength and qualified plasticity. It is the most widely used hard aluminum in the aviation industry.

3. Cons of 2A12 Aluminum Plate Because 2A12 aluminum plate contains high Cu, its corrosion resistance is lower than that of pure aluminum and Al-Mn alloy. Therefore, the corrosion resistance of 2A12-T4 aluminum in the ocean and humid atmosphere is very low, which cannot meet the requirements of use and needs to be artificially protected.One of the protection methods is to use pure aluminum plate with a purity over 99.5% to cover its surface. Haomei Aluminum has a strict control of Cu and Mg content, so that the tensile strength and natural aging effect of quenching of 2A12 alloy can be greater. We can offer 2A12 aluminum sheets in O , T3, T4, T351, and H112 tempers. 2A12 Aluminum VS 6061 Sheet Both 6061 sheet and 2A12 aluminum are heat-treatable aluminum alloys. After heat treatment, the two are difficult to distinguish in appearance, but they have a huge price difference between the two, about 10,000 yuan/ton. How to tell 2A12 aluminum from 6061 aluminium sheet? Hardness The hardness of 6061 aluminum plate is 90HB after heat treatment, while the hardness of 2A12 can reach around 120HB. There is a big difference in hardness between the two. You can use the hardness measurement equipment to prove this point. Corrosion Resistance 2A12 aluminum shet has high strength, qualified plasticity and poor corrosin resistance. It is mostly used in the state of clad aluminum plate, which is the most

4. widely used duralumin in the aviation industry. 6061 aluminium sheet has good corrosion resistance, weldability and workability. Its machinability makes it the right choice for many extrusion projects because it is easy to shape. Because of good corrosion resistance, it is not only widely used in aviation industry, but also for shipbuilding. Density The density of the two is quite different. The density of 6061 can only reach 2.7, while the density of 2A12 can reach around 2.78-2.79 due to the high content of copper alloy. You can get the aluminium sheet density through the following formula: Weight formula: thickness (mm) * density * length (m) * width (m) = weight Application 6061 aluminum alloy belongs to 6xxx alloy, having higher silicon content. 2A12 aluminum belong to 2xxx alloy, a kind of Al-Cu-Mg alloy. 6061 aluminum is mainly used for bicycle parts, aerospace parts and building structures. In the aerospace industry, 6061 sheet is used n areas of greater ductility. Since it is easier to shape, 6061 sheet is more commonly used for cans and other

5. round good. 2a12 is widely used in aircraft structures, rivets, and truck wheels. Why Choose 5454 Aluminum Plate for Tankers The tank truck is a common transportation vehicle of liquid materials. In terms of safety, environmental protection, and economy, traditional steel tankers have been gradually replace by aluminum alloy load tanker. The uses of aluminum tanker plate can greatly reduce the weight of the tanker body. The reduction in the body weight means the increase in the speed of the car and the reduction in fuel, which brings higher economic profit. As we know, many of the materials transported by tankers are hazardous chemicals or flammable and explosive materials. The safety of transporting such materials is a very important factor. Traditional steel or iron iron tanker bodies are easy to produce sparks, which greatly increases safety risks, but the use of aluminum tanker can avoid such possibility. 5454 aluminum plate has good performance at high temperature, which is an ideal choice to transport high temperature liquid. It is a typical anti-rust aluminum, and its strength is higher, about 20% higher than that of 5052 aluminum plate. 5454 aluminum plate is widely used in automobiles, aluminum tanker cylinder and other fields. In tha aluminum alloy fuel tanker manufacturing, 5454-H32/ 5454-H111 is used to make alumnum tank truck body. For the head, bulkhead and baffle of the fuel tankes, the common choice is 5454-O aluminum hseet. In addition, because of excellent corrosion resistance, high fatigue resistance and

6. plasticity, 5454 aluminum sheet is also used for marine pipes. The service life of submarine pipelines generally exceeds 20 years. At the same time, the marine pipelines made of 5454 aluminum sheet is maintenance-free or minimal maintenance. A Versatile 5454 Aluminium Sheet 5454 aluminium sheet is of high strength, strong corrosion resistance, good plasticity, and good formability. So it is of wide application in transportation industry such as pressure vessel, tank truck, engine, car wheel and shipbuilding. Pressure Vessel It refers to equipment that can bear a certain pressure or contain flammable and explosive materials. The strength of 5454 aluminum is about 20% higher than that of the 5052 aluminum plate, and its properties are roughly the same as that of the 5154, but its corrosion resistance is better than that of the 5154 in harsh environments. Therefore, 5454 aluminum plates are often used on pressure vessels. Fuel Tanker 5454 aluminum plate is an ideal choice for high temperature liquid. It has good

7. compatibility with most chemical media and foods such as acetone, benzene, gasoline and diesel, kerosene, glacial acetic acid, etc., and the transportation range is relatively wide. 5454- h111/h32 is widely used for making tank cyclinder. Vehicle Engine The engine is the core of the entire car body and determines the overall price and performance of the car. The weight of the of the engine generally accounts for 20-30% of the vehicle. In order to reduce the weight of the overall weight, 5454 aluminum is often used to make engine because of its good good plasticity and good formability. Car Wheel Alumium alloy wheels are not only labor-intensive, material-intensive, capital-intensive products, but also technology-intensive products, having high requirements for the aluminum sheet. 5454 aluminum sheet belongs to the aluminum-magnesium alloy, which is a common material for making wheels. As one of the big 5454 aluminum plate suppliers in China, Haomei Aluminum owns the "1+1" production line, providing a strong foundation for the large-scale production of 5454 aluminum plates. The wheel hub is the main supporting metal component of automobile tires. Aluminum alloy and steel are two common materials. Whether aluminum alloy wheels or steel wheels is better has been controversial. Let’s have a look together. Steel wheel hub: It is of simple manufacturing process, low cost, low price and strong resistance to metal fatigue. However, steel wheels also have many obvious

8. shortcomings such as heavy weight. Steel wheels of the same size are much heavier than aluminum alloy wheels. This will inevitably lead to the large inertia of steel wheels. It is inferior to aluminum alloy wheels in braking, and it has poor heat dissipation and is not good-looking. Aluminum wheel hub: Aluminum alloy wheels are much lighter in weight and have less inertial resistance. The thermal conductivity of 5454 aluminum plate about three times that of steel. The heat dissipation is much better than steel wheels, and it is easier to withstand the thermal decay of tires and braking system. In the case of high-speed rotation, the deformation of aluminum wheel is small, making it easier for cars equipped with aluminum alloy wheels to drive straight, thus reducing the resistance caused by tire rolling. In terms of appearance, the aluminum alloy wheel hub is appropriately added with

9. metal elements such as manganese, magnesium, chromium, titanium, so that it has better plasticity, and can have different metallic luster depending on the proportion of addition. Its appearance is much better than that of steel wheel. However, aluminum alloy wheels are not without disadvantages. Generally, the manufacturing process of aluminum wheel hub is complicated than that of steel wheels, so its price is much more expansive. Aluminum alloy wheels are not as rigid as steel wheels. In short, aluminum alloy wheel hub is suitable for passenger cars for it is more energy-saving, comfortable, and safe. They have basically become the standard configuration of most passenger cars. 5454 aluminum plate belongs to aluminum-magnesium alloy, which is a common material for making wheels. Haomei Aluminum, one of the 5454 aluminum plate suppliers in China, can offer rich tempers and different specifications. The Properties of 5454 Automotive Aluminum Sheet Lightweight car is a popular and irresistible trend for the automobile industry. More and more automobile manufacturers have begun to develop aluminum alloy as the main material for automotive making. This also benefits from the excellent performance of aluminum alloy plates. 5454 aluminum sheet is one of them. How about its properties?

10. Good formability The formability of 5454 aluminum sheet is its ability to withstand shape changes during the stamping process. The formability can be evaluated by a formability test. The test results of the formability of aluminum alloy plates proves that it can fully meet the performance requirements of automobiles. Anti-aging stability The non-aging characteristics of aluminum alloy sheet when stored at room temperature can be called anti-aging stability. From the production to the stamping, it usually take several months to transport and store. 5454 aluminum sheet can ensures no aging for at least half year when it is stored at room temperature. Good bake hardening After stamping, the automotive stamping parts are treated with paint baking technology to improve its yield strength. High bake hardening performance will give the automobile parts high dent resistance. Good flanging

11. ductility Flanging ductility is the anti-cracking performance of the 5454 aluminum sheet when the outer panel of an automobile is flanged. Therefore, the aluminum alloy sheet should have good flanging ductility to ensure that the flanging does not crack. Good metal luster If the size of a grain is unevenly distributed, it will directly cause the surface of the stamping part to appear the defect like a rope loop along the rolling direction. The defect analysis on the surface is also called the Luoping line, which leads to inconsistent surface finish after painting. Therefore, automotive aluminum sheet should have a good surface finish. The Corrosion Resistant Performance of Marine Grade Aluminum Sheets Seawater is a strong corrosive medium with high salinity, which has a strong corrosive effect on general metals. For a long time, people often choose titanium and copper-nickel alloys as seawater corrosion-resistant materials. Titanium has high corrosion resistance, but has poor thermal conductivity, high price and is not easy to process. Copper-nickel alloys are prone to contact electrochemical corrosion. Aluminum and aluminum alloys are of light wight, high strength, high thermal efficiency, and moderate price. 5xxx marine grade aluminum sheets has good seawater corrosion resistance. among which 5454 and marine grade 5052 are represented. Chemical Composition Alloy Mg Mn Cr

12. 5454 2.4-3.0 0.5-1.0 0.05-0.20 5052 2.2-2.8 0.15-0.30 The Corrosion Resistant Performance Alloy Corrosion rate Standard electrical Mechanical level potential properties Tensile strength 5454 0.0802 -0.86 250-270 5052 0.048 -0.85 195-230 The Cons of 5454 and 5052 alloys: a. There is a phenomenon of "aging softening". The mechanical properties of 5454 and 5052 alloys will decrease with the extension of time during use. b. b. There is a tendency of stress corrosion cracking. In the process of hot working and cold working, there is internal stress in the product, and the existence of internal stress accelerates stress corrosion. c. There is a tendency to crack during welding. During welding, micro cracks are generated in the weld due to the local melting between the crystals, which is easy to cause the weld to crack.

13. d. For better corrosion resistance, on the basis of 5083 aluminum alloy, 5383 aluminum is developed by reducing the content of Fe and Si impurities, slightly increasing the content of Cu and Zn, and adding a small amount of Zr. It has higher strength and better welding performance. With higher hardness, the number of welded boats has been greatly reduced. Therefore, it is much favored by large high-speed ships manufacturers. Welcome to leave message below to inquire what you need.