The reason for giving up stainless steel and using this easily rusty iron is that there is actually a lot of knowledge in it.Today, the technician from Kingrail Parts asked him to explain this question for everyone.
First of all, the railway track made of stainless steel material, although it looks more beautiful, has a fatal disadvantage that stainless steel is relatively fragile, its hardness is not enough, and it is easy to deform under extreme conditions such as heat and high pressure when the train is running. The safety of the train cannot be guaranteed, so it cannot be used as a rail material. Everyone can find some stainless steel products in life. Try to take a knife and scratch them and find that scratches are easy to appear. This is because stainless steel has low hardness and is not wear-resistant, although it has the advantages of anti-rust and anti-corrosion. , But for the people's livelihood plan of railway transportation, it is far from reaching the qualified standards.
The special material used in the manufacture of steel rails is called high manganese steel. This material has more manganese and carbon content than ordinary steel products, which ensures that it has high rigidity and toughness, and it will not be Various external factors have caused its own characteristics to decline, and it can easily face the extreme conditions of trains running at high speeds. China Railway has a long history and is also a master in steel track manufacturing. Although the railway track made of high manganese steel is not as beautiful as stainless steel, it will cause rust after years of wear and rain, but its internal structure is still intact. It is non-destructive, and its surface hardness will be greatly enhanced after being impacted by the friction of the train wheels, so this high manganese steel is the best choice for steel rail materials. In the face of safety and practicality, it is wise to abandon good looks!