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Composition of Rail Steel
Following the composition of steel are used in the construction rails:
a) For ordinary rails:
High carbon steel having following composition is used for manufacturing of ordinary rails
Carbon (C) – 0.55 to 0.68 %
Manganese (Mn) – 0.65 to 0.90 %
Silicon (Si) – 0.05 to 0.3 %
Sulphur (S) – 0.05 % or below
Phosphorus (P) – 0.05 % or below
b) For rails on points and crossing
Medium carbon steel having following composition is used for manufacturing of rails on point and crossing
Carbon (C) – 0.5 to 0.6 %
Manganese (Mn) – 0.95 to 1.25 %
Silicon (Si) – 0.05 to 0.20 %
Sulphur (S) – 0.06 % or below
Phosphorus (P) – 0.06 % or below.
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