What steel should be used for railway rails?

This is a kind of special steel after heat treatment.

Steel is generally divided into four categories: profiles, plates, pipes and metal products. In order to facilitate the production, ordering, supply and good management of steel, it is also divided into heavy rail, light rail, large steel, medium steel, small steel, cold-formed steel, high-quality steel, wire rod, medium-thick steel, thin steel, electrical silicon steel sheet, strip steel, seamless steel tube steel, welded steel tube and metal products.

Railway rail, referred to as rail, rail, rail, etc. , used in railways, used in conjunction with turnouts to enable trains to walk without turning. The track usually consists of two parallel rails, which are fixed on the sleeper, with ballast under the sleeper, the connecting part between subgrade and rail, etc.

Extended data:

Connecting part of track

Track coupling parts include joint coupling parts and intermediate coupling parts. The connecting piece of rail joint is composed of splint, bolt and spring washer. Its function is to connect the rail at the joint, so that the joint part of the rail has the same integrity as the rail to resist bending and displacement. The joint should also meet the requirements of rail expansion.

The connection between the rail and the sleeper is realized by the intermediate connector. The middle connector, also called fastener, requires sufficient strength, durability and certain elasticity to effectively maintain the reliable connection between the rail and the sleeper for a long time, prevent the rail from moving relative to the sleeper, give full play to its cushioning and shock absorption performance under the dynamic action, and delay the accumulation of track residual deformation.

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