Main types of rail steel

Steel rail, also known as rail track, is an integral part of railway transportation. Steel rails are usually laid in the trackways of rail transit to provide a smooth, level guide for the trains wheels. Steel rails provide for a safe, smooth and reliable ride for commuters, allowing for faster and more efficient transportation of goods and people. Compared to other construction materials, steel rail has the advantages of high strength, easy installation and good maintenance.

Steel rail is a type of steel product with a cross-sectional shape specially designed for rail transport. Generally speaking, it is used to form railway lines, and its shape is like a vertical groove set up on the two sides. It is usually referred to as an I-beam which is the flange shape of the steel rail, with the perpendicular web and a base referenced as the rail bed.

Steel rails are generally divided into light rail and heavy rail based on their weight. Light rail is defined as a steel rail having a linear density of less than or equal to 30 kg/m; and heavy rail as a steel rail with a linear density greater than 30 kg/m. The types of light rail mainly include GB2585-2007 8Kg, 12Kg, 15Kg, 18Kg, 22Kg and 30Kg series, and those of heavy rail include GB2585-2007 38Kg, 43Kg and 50Kg series.

The most common steel rail on the market is the flat-bottomed rail, also known as the flat-bottom rail. This is the most widely used type of steel rail, and it can be seen on railway lines that traverse both flat and hilly terrain. This steel rail is characterized by a flat bottom and uniform flange widths that make it easy to construct railway lines over wide flat terrain. It also has good compatibility with most railway sleepers.

The next most common type of steel rail is the single-headed rail, which is generally used in areas with hilly terrain. Also known as the curved-bottom rail, this steel rail features a thicker bottom that allows it to complete curves and therefore makes it more suitable for navigation in hilly terrain.

The next type of steel rail is the double-headed rail, also known as the V-bottom rail. This type of steel rail is characterized by a thicker and slightly curved bottom, which allows it to be used on uphill and downhill or winding railway lines. It is a relatively economical type of steel rail that is widely used in light railway lines.

The last type of steel rail is the grooved rail. This type of steel rail is widely used in urban subway systems and automated railways in airports, malls and other super-high-density passenger traffic areas. The grooved rail is characterized by shallow grooves on the two sides of the rail and is mainly used to secure the power supply of rail transit equipment and ensure the safety of rail transit operations.

Steel rails are widely used in modern railways and subway systems. They provide for a safe, reliable and efficient transportation system for both people and goods. They come in many different types and sizes, allowing for an efficient and cost-effective construction of rail systems designed for different terrains and grades. With the development of modern science and technology, the quality and performance of steel rails continue to improve, making them an essential component in the construction of efficient and reliable railway lines and transportation systems.

Steel rail is a kind of steel products, which is widely used in railway, highway, bridges, tunnel and other engineering projects. Steel rail is usually divided into two types: light rail and heavy rail. Light rail is mainly used in the laying of narrow gauge lines, minipORT rail transit, light lines and toy train lines. Heavy rail is mainly used for high speed railway and heavy freight lines.

Generally, light rail is divided into three categories: 9 kg/m, 12 kg/m, 15 kg/m and 18 kg/m, and the common standards are 8, 9, 12 and 15 kg/m. Common standards are 8 kg/m, 9 kg/m, 12 kg/m, 15 kg/m, 18 kg/m and 22 kg/m. It is a kind of special steel rail for mining applications which is often referred to as mining rail.

Heavy rails are usually classified into three types: 8 kg/m, 18 kg/m, and 24 kg/m. Heavy rails are mainly used in high speed lines and heavy load lines. Other than these, there are crane rails and special rails. Crane rails are mainly used in overhead cranes, port and factory shops, and special rails are mainly used in tunnels, subways, underground power stations and other special occasions.

The standards for steel rail in the world are mainly divided into three categories: domestic standard, China standard and international standard. The main indicators of steel rail are rail weight, rail head width, rail foot width and rail height.

In short, steel rail is mainly divided into light rail and heavy rail, and various specifications of steel rail can meet the needs of different applications. Steel rail has strong bearing capacity and good wear resistance, and can provide safe, reliable and convenient transportation for railway, highway, bridge and tunnel projects.