PRODUCT: USED RAIL TRACKS( R50 – R65) COMPOSITION: NON- METAL IMPURITIES TOTAL 1% (ONE PERCENT) OR LESS- NO RADIATION. MN: 0.75 – 1.25; C: 0.71 – 0.84; SI: 0.18 – 0.55; S: 0.045MAX; P: 0.035MAX; AS: 0.01% MAX OF MASS SHARE; AND CR: RESIDUAL.