I don't know, honestly. Raelis has enough strength to lift something that's 2,475 pounds. He can put that amount of strength into his slashes or stabs or punches. That plus his sword being unbreakable and it being able to reach a max of 1000 degrees Fahrenheit.

I'm not a math wiz, so I don't know what he could cut through, but I imagine it's a pretty strong material.