Practical implications: Very high mechanical properties of new grades encouraged to implement the first one (nickel–free with hardness of 370 HBW) on commercial scale.
Rails (S49) made of it are successfully operating as part of main exit track from ArcelorMittal Steel Plant of Poland in Dąbrowa Górnicza since 2004 year.
Originality/value: Orginal value of the paper is to give an information, that it is possibility to procedure bainite rails S49 or UIC60 types of a very high mechanical properties, directly in rolling mill.