He never listed what type of steel or even what area, hard to give a meaningful answer, we cant give a detailed answer when there was not a detailed question
when I got my used Century 100 at my welder supply shop, they gave me a welding hood and turned me loose to test drive it, paid $100 for it many years ago and its still working, It runs as flux-core or gas or dual shield
For those that do not already know, I teach Jujitsu, which is an ancestor of Ninjitsu; so occasionally I tease practitioners of Ninjitsu for entertainment value