Description
Steel rails are mainly made of a mixed alloy of iron and other elements such as carbon, gold, chromium, nickel, etc. The manufacturing process requires multiple processes such as casting, forging, heat treatment, and mechanical processing. The standard length of steel rails is usually 12.5 meters or 25 meters, which is the result of scientific calculations. It can prevent the track from twisting and deforming during temperature changes, and meet various parameter requirements for engineering applications.It directly bears the load of the train and transmits the load distribution to the sleepers, ensuring the smooth and safe operation of the train.
Steel Rails
Material of steel rail
1, Carbon steel rail:
This is a common steel rail material. It is mainly composed of iron and carbon, with certain strength and hardness, and can withstand large pressure and friction. Carbon steel rails have relatively low costs, but their performance also has certain limitations. Widely used on some ordinary railway lines.
2, Alloy steel rails:
Alloy steel rails are made by adding some alloying elements such as manganese, silicon, chromium, molybdenum, etc. to carbon steel. The addition of these alloying elements can significantly improve the strength, hardness, wear resistance, and corrosion resistance of steel rails. Alloy steel rails are suitable for high-speed, heavy-duty railways, and some railway lines in special environments.
3, Bainite steel rail:
Bainite steel rails have good strength, toughness, and wear resistance. By using a specific heat treatment process, the structure of the steel rail is transformed into bainite, resulting in excellent performance. This type of rail has shown good performance on some heavy-duty railways and busy lines.
GB Steel Rails
Different materials of steel rails have their own advantages and disadvantages in terms of performance characteristics, and in practical applications, they need to be selected according to the specific needs of the railway. For example, for high-speed railways, it is necessary to use steel rails with high strength and good wear resistance; For some ordinary railways, more economical rail materials can be selected based on cost and actual usage.
