Russian steel maker EVRAZ ZSMK has shipped 310 tonnes of 100-meter P50 rails for the St Petersburg metro. This will improve safety and make metro travel more comfortable for passengers. The use of 100-meter rails simplifies the technology of laying rails on the road. Rails 25 meters long are welded into 125-meter strings. The use of 100 meter rails reduces the number of welds. This allows the metro to reduce the number of repairs and, accordingly, the cost of maintaining tracks, increases the safety of electric trains. Due to their smooth and quiet running, metro rides become more comfortable for passengers.EVRAZ ZSMK has been cooperating with domestic metros since their inception and is one of the main suppliers of rails for the subways of Moscow, St. Petersburg, Kazan, Novosibirsk, Nizhny Novgorod.Before the launch of the new rolling mill, EVRAZ ZSMK supplied only 25-meter rails. In 2015, for the first time, he sent the first batch of 100-meter differentially heat-strengthened rails of the P65 type of DT350 category to the Moscow metro. In total, since the launch of the new mill, the plant has supplied about 63 thousand tons of rails in lengths of 25 and 100 meters for the metro of Russia and the CIS countries, including for the Petersburg, Moscow, Nizhny Novgorod, Novosibirsk subways, the Tashkent subway and others.