Composition of Rail Steel

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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Types of Rails

Weight of Rails

Hogged, Buckling and Tilting of rails