Introduction to the meanings of aluminum alloy grades

Aluminum alloy materials are important construction and industrial production materials and are widely used in various sectors of the national economy. As a new type of metal material, aluminum alloy has many types like other metal materials, and different types of aluminum alloy materials have different uses. Faced with a wide variety of aluminum alloy materials, how do we distinguish them? In fact, aluminum alloys, like other metals, will be marked with a brand name when they leave the factory. The purpose of this is to distinguish different types of aluminum alloys on the one hand, and on the other hand to allow people to more directly understand its material composition and basic properties. . In production and construction, if we want to make better use of aluminum alloy materials, we must first learn to identify the brand of aluminum alloy. Now Xiaotu will give you a brief introduction to the relevant knowledge of aluminum alloys and their brands. ?

1. About aluminum alloy

The extensive application of aluminum alloy in industrial production is unmatched by other materials. It is the most important structural element in various types of industrial production processes. One of the materials. The so-called aluminum alloy refers to a metal that uses aluminum as the base metal, retains or adds some metal or non-metal elements, and is processed through a certain process. There are many elements that combine with aluminum, such as manganese, silicon, Copper, iron, chromium, zinc, etc. Compared with other conventional metals, the biggest advantages of aluminum alloy are reflected in its high strength and light specific gravity. It greatly overcomes the shortcomings of traditional metal structural materials that are bulky.

Aluminum alloys, like other metals, also have a variety of production and processing techniques. According to the different processing methods of aluminum alloys, they can be summarized into two categories: deformed aluminum alloys and cast aluminum alloys. These two categories Types of aluminum alloys can be further subdivided into many types. For example, deformed aluminum alloys can be divided into non-heat-treatable strengthened aluminum alloys and heat-treatable strengthened aluminum alloys, while cast aluminum alloys can be divided into different alloying elements. For aluminum-magnesium alloy, aluminum-zinc alloy, aluminum-silicon alloy, aluminum-copper alloy, etc.

2. Aluminum alloy brands

How do we identify the various aluminum alloys mentioned by Xiaotu above? In fact, for people in the industry, most metal materials have grades, and we can completely identify them based on the grade. Of course, aluminum alloy also has its own brand. The designation of aluminum alloy grades is generally carried out in accordance with relevant domestic or international standards. Of course, the determination of my country's aluminum alloy grades is no exception. Our country's aluminum alloy grades are composed of four digits. Except for the second digit which is a capital English letter, the other three digits are Arabic numerals. Let me tell you what each number represents:

1. The meaning of the first digit: represents the group of aluminum and aluminum alloys. The aluminum alloy group here is mainly determined by alloy elements, but modified alloys must be excluded.

2. The meaning of the second letter: represents the modification of the original pure aluminum or aluminum alloy.

3. The meaning of the third and fourth digits: either indicates the purity of aluminum, or is used to distinguish different varieties of the same group of aluminum alloys.

After understanding the naming rules and basic meanings of aluminum alloy grades, we can make a preliminary identification and understanding of aluminum alloys based on their grades, thus laying the foundation for our further use of it. Of course, if it is your first time to identify aluminum alloy brands, Xiaotu suggests that you should refer to relevant standards when identifying. With the first identification, subsequent identifications will be easier.

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