Application of titanium bar

Titanium is a kind of corrosion-resistant material with excellent corrosion resistance, so the titanium bar rolled by it has been widely used in chemical industry, medical industry and so on. Here is a brief introduction of some characteristics and application of titanium bar in chemical industry.

I. implementation criteria for titanium rods

Commonly used standards in chemical industry GB/T2965 and ASTMB348.

(2) high temperature mechanical properties

Grade test temperature c

High temperature mechanical properties are not less than

Tensile strength Sigma bMPa endurance strength 100hMPa

TC4

Four hundred

Six hundred and thirty


Five hundred and eighty

Four. Processing and surface quality requirements

The roundness of the hot rolled pass bar should not be greater than half of its dimensional tolerance.

The indefinite length of the titanium rod is 300-6000MM, the indefinite length of the annealed titanium rod is 300-2000MM, and the allowable deviation of the indefinite length or the double length is + 20MM. The length of the double length should be included in the cutting quantity of the titanium rod, and the length of the fixed length or the double length should be specified in the contract.

Titanium bars should be sawed at both ends smoothly, and bars with diameter or edge length less than 35MM should not be cut more than 3MM; bars with diameter or edge length greater than 35MM should not be cut more than 5MM.

The transverse macrostructure of titanium bars does not permit cracks, pore, metallic or non-metallic inclusions, segregation affecting use and other metallurgical defects visible to the naked eye.

The surface of titanium rod is allowed to have slight scratches, indentations, pitting and wrinkles which are not more than half of the allowable deviation of diameter or side length.

Local defects on the surface of titanium rod can be removed. The ratio of width to depth of the removal site should be greater than 6, and the depth of the removal site should meet the following requirements:

The bar for hot working will not exceed the allowable deviation of the size.

Bars for continuous cold working; the minimum size of bars should be guaranteed after cleaning.

The surface roughness of the bar required for flaw detection should meet the requirements of flaw detection.

Five. Application of titanium bar

In recent years, with the continuous development of science and technology, the superior properties of titanium have attracted more and more attention and been applied in many fields. Like the automobile industry, the use of titanium rods, especially those made of Ti-6AL-4V alloy rods, in automobile engines not only wear-resisting but also lightweight, which reduces the weight of automobiles, has attracted the attention of many well-known automobile companies. The following titanium springs, silencers, exhaust drums and so on are all used in titanium. Of course, titanium rods are used as stir rods, fasteners, etc. in chemical industry due to their corrosion resistance and wear resistance. Titanium rod filter is widely used in food industry because of its low toxicity and pollution-free characteristics. In addition, the superior performance of titanium has also attracted the attention of the medical community, contributing its strength to the development of medicine and human health. Specific instructions to be continued.