1. Rails

2. Rails
Members of the track laid in two parallel lines to provide an unchanging, continuous and level surface for the movement of trains.
Made of high carbon steel.

3. Carbon Steel Alloy (metal + another component) steel
Steel become stronger & harder
Reduces weldability (capable to be welded) & melting point

4. Functions of Rails Continuous & level surface
Smooth flow i.e. friction b/w Steel-Steel is ⅕ of Tyre-Road
Transmitting load to larger area
Bear stresses (axle load, breaking load, thermal load)

5. Types of Rails
Double Headed Rail
Bull Headed Rail
Flat-footed Rail

6. Double Headed Rail First rails I Section Rail can be inverted & Reused
Practically not possible to reuse

7. Bull Headed Rail More metal on head Reduce wear & tear
Drawback-chairs required for fix to sleeper

8. Flat-footed Rail (used in IR)
Also called Vignole rail
Inverted T-Shape
Fixed to sleeper by spikes
More economics, greater strength & lateral stability