Specification Used Rail as: Used Rail R50 R65 R50 (51.67KG/METER) GOST 7173-55 R65 (64.72KG/METER) GOST 8161-75 Chemical composition of the steel scrap is of international standard as follows; MN: 0.60 1.05; C: 0.54 O.82; SI: 0.18 â?? 0.12; S: 0.04 Max; P: 0.035 Max;
