ISO 23300-2:2025
ISO 23300-2:2025 Railway infrastructure - Rail welding - Part 2: Aluminothermic welding
standard byInternational Organization for Standardization , 10/01/2025
standard byInternational Organization for Standardization , 10/01/2025
This document specifies the requirements on rail aluminothermic welding, including the requirements for approval process, laboratory tests, approval of welder and contractor, as well as the acceptance criteria of aluminothermic welds in track.
u000bThis document concerns the welding of 43kg/m to 75kg/m new vignole rails of the same profiles and the same grades.
u000bThis document is restricted to butt welding for connecting rail ends.
u000bNOTE Conformity with the requirements of this document does not ensure the suitability of a welding process for specific conditions of track and traffic.
u000bThis document does not cover welds made between different rail sections, differently worn rails or different rail grades.