Why Are the Rails of the Train Not Stainless Steel but Rusty Iron

The train track is the established running track of the train, and it is an indispensable mode of the current train and railway technology. Everyone should have noticed that basically all the train tracks are rusty, even the newly built train tracks are like this. Rusty iron products will not only shorten their lifespan, but also become very fragile. So why are train tracks not made of stainless steel but of rusted iron? After reading it, you have increased your knowledge.


In many existing train rail transits, or on the train tracks under construction, neatly arranged track lines can be seen. The rusty railways on these lines are the most puzzling, because the rusty steel products due to external factors will reduce their characteristics and functions. Why can such steel products be used in such important transportation construction? Can't we just use stainless steel rails directly? Not only does it look beautiful, but it also feels safer and more reliable. But at present, this kind of rusty railway is the most suitable for railway construction, and stainless steel is not as good as it.


China currently uses high-manganese steel rails in the construction of railway transportation. This material has more manganese and carbon elements than ordinary steel, which increases the hardness and toughness of the rails to a certain extent, and can withstand the daily running of trains. High pressure and frictional losses of the wheels. The reason why stainless steel is not acceptable is because it is not durable enough and is easily damaged under thermal expansion and contraction. Under daily wind, rain and exposure, stainless steel can be easily damaged. And although this kind of tall and fierce rail looks rusty, there is only a layer of rust on the surface, and the inside is still intact.

Post time: Mar-27-2023