List of locomotive models and the railroad they belong to, top to bottom of picture. Santa Fe railway FP45, New Haven Railroad I-5, Burlington Northern SD40-2, and a Chesapeake and Ohio GP30.
That's gonna need a damn strong alloy as the rail track, to be able to handle the forces put on it by that artillery.
Though I would say doing this regularly would be pretty bad (given that sparks are being made), the flanges of train wheels regularly rub against the rails in real life, especially along curves. So regular steel should do just fine. What I would be more concerned about is momentum displacing the track which is a real problem faced in real life caused by a multitude of reasons. While the track should be kept on the ties so long as the spikes are put in well, the ballast on well maintained track is compact but still in individual pieces meaning the ties and rails can be pushed through the ballast.
I'm tentatively tagging the disembodied hands around the border of the image as the Chimera, as they look similar to the hands from the cutscene prior to the fight against it.
It's time for Adult Sasuke to take a break with his family. His mind was tired from his teenage years dealing with the history and problems of the Uchiha Clan.