Specifications of used rail scrap ( r-45 to r-65):
Chemical specifications for scrap railway track metal:
-1. Caduim cd :0.0006%
2. Chromium cr :0.6205%
3. Copper cu :0.2507%
4. Cobalt co :0.0046%
5. Lead pb :0.0149%
6. Molybdenum mo :0.003%
7. Nickel ni :0.141%
8. Tin sn :0.001%
9. Silver ag :0.0005%
10. Zinc zn :0.349%
11. Iron fe :75.21%
12. Carbon :0.04 % (maximum) rejection at 0.06%
Impurities :23.33% (calculation) total 76.668%

The following traces of elements should be avoided & should not be there:.
Carbon :0.65 - 0.75% (in the railway track)
Manganese :0.65 - 0.80%
Sulphur :0.06% max.
Phosphorus :0.035%
Ash :0.01 max mass share