Why do train tracks use rusty steel instead of stainless steel?

As one of our daily travel tools, the train greatly facilitates our daily life, and traveling by train is also very convenient and affordable. Friends who have been on the train may notice that the tracks of the train will rust after a long time. There are many reasons for using rusty steel instead of stainless steel.

One: High manganese steel is very wear-resistant.

We definitely put safety first when we take the train. Nowadays, most train tracks are made of high-strength steel, and the biggest advantage is wear resistance. Every day, the train comes into contact with the tracks. If non-wear-resistant materials are used, there will definitely be safety problems. Moreover, the train track is bare all the year round, and good materials are needed to meet the needs of the train track.

Second: stainless steel has poor compressive performance.

Although the subway track made of stainless steel won't rust, the compression resistance of stainless steel is relatively poor, and the train track carries very heavy trains every day, and there are thousands of passengers in the carriages. If there is no certain pressure resistance, then the train is very dangerous. For the sake of passengers, it is necessary to choose safer materials.

Third: the cost of stainless steel is high.

No matter what you build, the first thing that comes to mind is safety, followed by cost. If you choose very expensive materials, you can't afford them. Stainless steel is not only unsafe, but also expensive to put into use. There are later maintenance, maintenance costs, etc., which also need to be calculated.

It is for these reasons that the country will choose rusty steel to build railway tracks. Although the price is not the first, safety must be guaranteed, otherwise there will be passengers who dare to travel by train.