Titanium rods: GOST, characteristics, application

A titanium bar is a solid type profile having a circular shape. It is made not only from titanium, but also from alloys of this substance. It is worth noting that this type of product is one of the most popular among titanium products.

Raw materials for production

In order to produce titanium rods, an alloy such as VT1-0 is used. It belongs to technical materials, and also other alloys are prepared on its basis, for example, VT6, VT16, etc.

The main difference between such a metal rolling is that it is characterized by a very high strength. At the same time, the material itself is considered very light, there is a high resistance to corrosion. In addition, there is resistance to various aggressive environments. Another significant difference between titanium rods and others is that they exhibit heat resistance and very low density. These two characteristics are at the highest level.

For example, raw materials cannot be influenced by the tremendous pressure of sea water, and also incandescent gas of superhigh temperatures cannot influence it. In addition, an oxide film forms on the surface of titanium rods, which performs protective functions.

titanium circles

Product Parameters

One of the most pleasant properties of this material is that it does not lend itself to low temperatures or, conversely, very high. This statement is true both for static temperatures and for differences. Thanks to this, titanium rods can be used in a wide variety of climatic conditions. In addition, it is worth noting that titanium products have a good weldability index and are also well machined.

The uniqueness of precisely the rods from these raw materials has led to the fact that they are very widely used in aircraft, shipbuilding, as well as in the engineering industry. Titanium rods are characterized by such parameters as:

  • diameter has a wide range (from 5 to 180 mm);
  • product length;
  • accuracy of execution can be normal, as well as increased type;
  • brands that are used for production may also differ;
  • manufacturing method and processing method may also be different.
weld

VT6 alloy rods

This brand is alloyed and one of the most common as a raw material for production. Rods with this marking can be used in structures of increased importance, which will experience increased load. One of the most important characteristics in this case is the weight of the titanium rod, which is the lowest possible, as well as high strength. The alloying operation is carried out with maximum accuracy, which allows you to get the best balance between such two parameters as strength and ductility. This makes it much easier to process the material, and, in addition, greatly expands the scope of use of circles. When doping, chemicals such as aluminum and vanadium are used. The first element is designed to increase strength and increase resistance to temperature, the second element plays an important role in creating the necessary ductility of the material.

GOST of titanium rods regulates the full chemical composition of the substance. State Document Number 19807.

titanium alloy

VT1-0 alloy

This brand is also considered very common, and the amount of impurities is minimal. Rods from such alloys are used, mainly where the weight of the structure and its resistance to aggressive environments are most important, but strength is relegated to the background. The main difference between a technical alloy of this type of titanium from others is that it has the greatest ductility, since there are no modifying fusions. This has also led to the emergence of many ways to handle circles.

titanium ingots

Physical properties of titanium

The element "titanium" has an atomic number 22, and it is located in a side subgroup of group 4, in period 4 in the periodic table. One of the main properties of this metal is its high refractoriness. The melting point of the raw material is 1668 Β° C. According to this indicator, it is second only to a few other substances, for example, tantalum or tungsten. Another feature of it is that it is paramagnetic. This means that the substance cannot be magnetized while in a magnetic medium, but at the same time it will not be pushed out of it.

The density of the raw material is 4.5 g / cm 3 and at the same time its strength reaches 140 kg / mm 2 . One of the distinguishing features of titanium is that these properties practically do not change their numerical values ​​when exposed to high temperatures. If we talk about the weight of the material, then it weighs about 1.5 times more than aluminum (2.7 g / cm 3 ), but it is also less than ordinary iron (7.8 g / cm 3 ). However, if we compare the mechanical properties of these three elements, then such titanium will at times surpass them.

titanium construction

Chemical properties and application

The element "titanium" was discovered back in the 18th century by an English chemist. Since then, this substance has been thoroughly studied. It is known that in pure form this element is chemically active. A protective film will form on the surface of any titanium products, which greatly enhances corrosion resistance. The oxidation of this substance does not occur under the influence of factors such as air, sea water. Titanium is able to maintain its state and performance, even being in fairly aggressive chemical environments. Ignition of the metal is possible in the open air only if the temperature is 1200 Β° C or more. It is worth adding here that at elevated temperatures an active interaction of the element with various reagents is observed. For welding, titanium rods are also excellent.

As for the areas of application of products from such high-quality raw materials, this could be the construction of space rocket technology. In addition to the above areas of use, titanium products are considered one of the best semi-finished products that can be used for further production of equipment for heating, all due to their heat resistance.

Source: https://habr.com/ru/post/C44495/


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