USED RAILS ISRI 50-65 METAL SCRAP BEING USED RAILS SPECIFICATIONS R50 (GOST-7173-75) AND R65 (GOST 8165-75 LENGTH OF RAILS IS 6 MTS - 12 MTS. CHEMICAL COMPOSITION C: 0.54-0.82% SI: 0.18-0.40% MN: 0.60-1.05% S: 0.04% MAX P: 0.035% MAX AS: 0.01% MAX OF MASS SHARE