Alloy AD31T: characteristics, composition, application

Currently, people use many different alloys from a wide variety of materials. All of them have their own parameters and are used in various industries. It is worth considering the characteristics of AD31T1, since this material has become quite popular in certain areas.

general description

To begin with, it is worth saying that AD31T1 is an alloy in which there are three main elements. These elements are Mg โ€“ Al โ€“ Si steel, in other words, it is an alloy of magnesium, aluminum and silicon. According to the characteristics, AD31T1 belongs to the group of deformable aircraft. Among other similar materials, it compares favorably with the fact that it exhibits high ductility. In addition, it has a sufficiently high technological properties and high resistance to corrosion. It should be added that this alloy lends itself perfectly to such mechanical types of processing as stamping, rolling, drawing and many others. The main purpose of this raw material is the manufacture of parts with good decorative characteristics and low margin of safety.

aluminum products

Alloy Chemical Description

The characteristics of AD31T1 are regulated by GOST 4784-74. This alloy is made on the basis of aluminum, whose share is about 99.3% of the total mass. The remaining 0.7% is silicon and magnesium. In addition to them, this small mass fraction also includes titanium, iron, zinc and manganese.

For example, the characteristics of AD31T1 vary greatly due to the fact that the amount of iron is approximately 0.5%. Due to this, ductility and strength are reduced, since this component forms various intermetallic compounds. However, at the same time, it, for example, reduces the tendency to crack material during casting. As for manganese, it positively affects the resistance of the material to corrosion, and also eliminates the loss of strength of the alloy during aging.

If we talk about the full percentage list of chemical elements in this alloy, then it looks like this:

  • iron - up to 0.5%;
  • silicon from 0.2 to 0.6%;
  • the amount of manganese - up to 0.1%;
  • chromium content - up to 0.1%;
  • titanium contains a little more - up to 0.15%;
  • aluminum occupies from 97.65 to 99.35% of the total mass fraction;
  • copper contains as much as manganese;
  • magnesium - from 0.45 to 0.9%;
  • zinc - up to 0.2%.

In the end, it is worth adding that the characteristics of the AD31T1 alloy in terms of chemical parameters are very close to the composition of the 6060 alloy, which is quite widely used in the vastness of Western Europe.

The difference is that 6060 contains less iron - from 0.1 to 0.3%. However, it is immediately worth noting that the presence of this component practically does not affect the mechanical qualities.

The advantages of material parts

To understand what advantages an alloy has, it is necessary to consider the products that are made of it.

So, the following qualities are attributed to advantages:

  • characteristics of aluminum AD31T1 make it possible to achieve high structural strength, which at the same time will weigh quite a bit;
  • materials have good sound insulation properties;
  • the service life is long enough;
  • high corrosion resistance and excellent ductility;
  • aesthetic appearance of products;
  • ease of maintenance, which consists in the absence of the need for careful care;
  • wide opportunities for the production of fairly complex structural products.

However, the characteristics of the aluminum alloy Ad31T1 have their own weaknesses. Among them, it is worth highlighting that high ductility closely borders on a high level of deformation, which becomes especially noticeable when the temperature drops significantly. Because of this, transportation of parts can be complicated.

pipes made of aluminum of different diameters

Alloy application

Despite the disadvantages, this material is used quite widely.

It is traditionally used in the manufacture of aluminum profiles. About 57% of all manufactured products are made from this alloy. They are able to compete well with galvanized steel, since both materials have high corrosion resistance, but aluminum alloy does not require periodic application of a protective layer, unlike steel.

aluminum pipe

Due to several advantages, the material is well suited for the manufacture of pipes. The characteristics of AD31T1, such as high corrosion resistance and non-toxicity, have led to the fact that the alloy has become very popular in the manufacture of containers. Typically, they are then used to transport nitric acid, organic matter, or even food. The foil used for cans and tetrapacks is also produced from AD31T1.

Recently, this material is increasingly used in the manufacture of communication cables, as well as overhead cables. This was made possible thanks to the fact that it has a greater margin of safety than the copper that was used before. The use of AD31T1 alloy has led to the possibility of increasing the span size, as well as reducing the amount of damage during installation of lines that occurred quite often. As for electrical conductivity, the material took the second place immediately after copper, but at the same time its cost is about 1.5 times lower. In addition, aluminum is much lighter, which plays an important role in the assembly of compact products, which must contain a large number of elements that conduct current.

aluminum corners

Corners from AD31T1

The corners from AD31T1 began to be very popular. The characteristics of this alloy made it possible to achieve the following advantages.

Firstly, the small weight of the corners allowed to significantly reduce the weight of the frame during its creation. Secondly, plasticity and ease of processing played a significant role, since you can change the shape with hand tools if necessary, and after welding there will be small and neat seams. In addition, there is a high level of resistance to various aggressive environmental influences, as well as oxidation. This significantly increased the durability of the corners, which is one of the key factors in the construction of the same frame.

aluminum corner with holes

What are the corners used for?

As it has already become clear, the main field of application of such an element is construction. However, the presence of a large list of positive characteristics made it possible to use it for other purposes. Aluminum corners from AD31T1 alloy are excellent for creating a frame for plasterboard designs. They are often used in the assembly process of furniture.

furniture corner

Alloys AD31T1 and 6063

In conclusion, it is worth noting that there is an analogue of American production - alloy 6063. The main coincidence is that the two main alloying elements are silicon and magnesium. The amount of the first element can be from 0.2 to 0.6%, and the second - as much as in AD31T1: 0.45-0.9%. However, there is a slight difference, which is that in 6063 chromium is used together with titanium. In addition, the alloy belongs to the medium-strength group, but at the same time, undergoing heat treatment, it can improve these qualities, like AD31T1.


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