Rollers are available in steel hardened to 60+ RC or in AISI 440C stainless. Straight and curved rails are precision ground from high carbon bearing steel hardened to 50 RC, straightness is to =0.05 ...

NEW DELHI: The use of stainless steel as standard material for making train coaches could help in minimising casualties in rail accidents, Outokumpu India, the local arm of Finnish steel maker ...