The conductor rails for current supply to the underground railway carriages.
The conductor rails are meant for provision of current supply to the underground railway carriages.

| Regulatory Document | Cross-sectional area | Weight of 1 meter | Steel Grade | Terms and Conditions of Delivery |
| section, cm² | kg | |||
| TU U 27.1-19305558-003: 2009 | 65,84 | 51,69 | М | Length of rails: 6.0 and |
| Length limit deviation: +/- |
Chemical Composition of Steel
| Steel Grade | Mass fraction of chemical elements as % | ||||||||
| С | Мn | at most | |||||||
| Si | S | P | Cr | Ni | Cu | N | |||
| М | 0,05-0,12 | 0,25-0,50 | 0,03 | 0,03 | 0,03 | 0,1 | 0,3 | 0,3 | 0,008 |