What Is The Marking Method Of Rails

Rail, as the core component of railway tracks, shoulders the important mission of leading the wheels of locomotives and vehicles, bearing huge pressure and transmitting it to the sleepers. It must provide a coherent, smooth and least resistant rolling foundation for the wheels. In addition, in electrified railways or automatic block areas, rails are more cleverly used as part of the track circuit. These rails are rolled from carbon-killed steel carefully smelted in open hearths and oxygen converters, so that they can effectively withstand the operating pressure and impact loads of locomotives and vehicles.

Rail is the core component of railway tracks, providing a rolling foundation for wheels and used as part of the circuit in electrified railways. It needs to withstand huge pressure and impact loads.

The rail standard clearly stipulates the marking method, including the use of rolling marks and hot stamping marks on the rail waist, as well as painting and labeling on the rail ends. Specifically, the convex mark is usually rolled on the waist of the rail on one side of the rail, and the order is: first mark the manufacturer's mark, followed by the rail type, for example, "60" represents 60kg/m; followed by the rail grade, such as "u75vG" or "u7lMnG"; finally, the manufacturing year (that is, the last two digits of the rolling year) and the month must be indicated.

On the other hand, the concave mark is printed on the waist of the other side of the rail by hot stamping, and the order is: steel plant code, production year, furnace number, continuous casting stream number, continuous casting billet number, rail sequence number and shift number. It is worth noting that the hot stamping marks of different steel mills may vary.