Why can steel rails continue to be used when they are rusted?

Edit:Zongxiang Heavy Industry--Lucas Date:2020-04-14 09:04:30

In some places, the railway may have been built into some villages. On the tracks, trains sped by.  If you look closer, you will find rust stains on the rails. Such a railway always makes people feel that its rails must have been used for a long time.

Now you may have some questions, since this rail often rusts, why not use stainless steel?  All trains run on rails, which are responsible for changing the train's route.  In fact, even new railway tracks are rusted. We all know that pig iron is very fragile, but our railway still needs pig iron products. railway track material

We all know that once these products rust, their materials and quality will be greatly reduced.  Since this will happen, we may think of stainless steel as our preferred material at this time. Actually, it is not what we think. The rail steel material of the current railway is high manganese rail.  The content of manganese and carbon in it is higher than that of normal steel products.  In this way, it has certain rigidity and toughness.  Satisfy the heat and oppression brought by the train when running at high speed, thus ensuring the high speed running of the railway. railway track material

However, stainless steel cannot be like it. If it is exposed to the sun and wind, it will be damaged to a certain extent. Of course, it cannot stand the oppression caused by high-speed trains.  This stainless steel is very fragile.  Therefore, rail steel cannot be made of stainless steel.

Although there are rust marks on the surface of high manganese steel rails, the internal materials are not damaged. These rust marks are quite a layer of protective film, which protects our rails from damage. We all do not need to repair all the time, and the service life will also increase. This is convenient and labor-saving. These benefits are not available in stainless steel, so we have no choice to use stainless steel as the rail. railway track material

ZXsteelgroup specializes in the sales of steel rails, mining supporting materials, steel plate sales and steel plate cutting, and strictly controls the quality. After the products are put on the market, they are well received by customers. If you have any need, please feel free to ask for advice or leave us a message on the website. We believe that with your advice and help, we will do better.

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