Views: 0 Author: Site Editor Publish Time: 2023-07-04 Origin: Site
Aluminum products are ubiquitous in our life and work. It is light in weight, high in strength, good in stability, easy to process and widely used. Its surface is silvery white, and can form a layer of oxide film to prevent metal corrosion in humid air, with a relative density of 2.7g/cm3, a melting point of 660°C, and a boiling point of 2327°C. Oxidation resistance. There are many names for such excellent raw materials in the market, and the raw materials of aluminum products are usually distinguished by brand names. What are the grades of common aluminum product processing raw materials? Xuzhou Runkun is here to share with you.
Among the commonly used grades, the first digit of the grade indicates the aluminum alloy series, the second digit indicates the modification of the original aluminum alloy, and the last two digits indicate the purity of the aluminum alloy in the same group. I hope it can help you better understand aluminum alloy grades.
1100: Good formability and high corrosion resistance are required, but high strength is not required. Mainly used for processing parts and components, such as storage containers, thin plate processing parts, deep-drawn concave vessels, heat exchangers, printing plates, nameplates, reflective appliances, etc.
2011: Free-cutting alloy with good machinability and high strength, but poor corrosion resistance. It is suitable for volume shafts, optical components, screw heads, screws and mechanically processed products that require good cutting performance.
3003: It has the properties of 1xxx series alloys and has higher strength than 1xxxx series alloys, such as kitchen utensils, food and chemical product processing and storage devices, tanks and tanks for transporting liquid products, and various pressure vessels and pipes for thin plate processing.
4A01: High silicon content, heat-resistant, wear-resistant, belonging to construction materials, mechanical parts, forging materials, and welding materials.
5052: The most representative alloy with medium strength (5083 is the highest), with good corrosion resistance, weldability and formability, especially high fatigue strength and good seawater resistance. It is used in the manufacture of aircraft fuel tanks, oil pipes, and transportation vehicles, Sheet metal parts of ships, instruments, street lamp brackets and rivets, hardware products, etc.
6061: heat-treated corrosion-resistant alloy. T6 treatment can have a very high endurance value, but the strength of the welded interface is low, so it is suitable for high temperature and corrosion resistant aluminum material boxes, screws, ships, vehicles, and land structures.
6N01: Medium-strength alloy for extrusion, can be used as large-scale thin-skinned profiles with complex shapes, and has good corrosion resistance and weldability. Applicable to vehicles, land structures and ships.
6063: A representative alloy for extrusion, with lower strength than 6061 and good extrudability. It can be used as profiles with complex cross-sectional shapes. It has good corrosion resistance and surface treatment. It is suitable for electronic semiconductor aluminum material boxes and construction highway guardrails , vehicles, furniture, home appliances, decorations.
7072: Low electrode potential, mainly used for anti-corrosion coating materials, also suitable for heat exchanger fins, air conditioner aluminum foil and ultra-thin strips.
7075: One of the alloys with the highest strength among aluminum alloys, but its corrosion resistance is not good. The covering skin with 7072 can improve its corrosion resistance, but the cost will increase. Applicable to aircraft, ski poles, thick plates, forgings.
According to the different needs of the product, it is recommended to choose the commonly used aluminum profile grades, as follows:
The product requirements are relatively hard, and the surface treatment is coarse wire drawing or coarse sand surface. Choose 5000 series aluminum alloy, commonly used: 5052;
Products with high surface treatment requirements, without sand holes and profile traces, choose 6000 series aluminum alloy, commonly used: 6063/6061;
The product requires a cheap price, and needs to be rechecked for stretching and shape. The choice is to use 2000 series pure aluminum, commonly used: 2011;
The product has high strength and high hardness, and needs to be used for load-bearing structures. Choose 7000 series aluminum alloy, commonly used: 7075.
