Rails are an important part of the railway infrastructure. Quality of rails have
directly affect the functionality of the railway traffic. Increasing speed of trains, high
frequency of traffic and axle load wagons and locomotives is directly related to the
quality of rails. The characteristic quality tracks are prescribed standards of the
International Union Railway (published UIC and EN 13674).
In order to increase the competitiveness of rail transport compared to other forms
of transport and establishment of interoperable railway system of the European Union,
is obligate to establish system management quality in according to ISO 9001. Also new
standard EN 13674 establish other types steels of rails (seven types pearlite steels) and
introduces a new philosophy in the micro and macro composition of steel for rails.
Key words: rails, steel quality, standards