Shoulders on railway tracks concrete sleepers

[ayush sood]

Hi,
I want to ask the shoulders that are used on railway tracks concrete sleepers, should they be forged or ductile cast and why?
If someone can post an article it'll be great.

Thank You for your help and support.

 

[Simon Bridge]

You are talking about the iron shoulders that are cast-in to the concrete sleepers to hold rail-tie clips?
http://railwayfasteningssuyu.sale.r...-iron-rail-shoulder-in-concrete-sleepers.html

They are cast - for the same reasons anything gets cast.