The hammers are interesting. I worked in a steelmaking plant where we made steel for a major hammer maker. It was huge amounts of about 600 tons at a time...1,200,000 pounds and did this every couple of months. Where do all of the hammers and tools go? Do they get lost. ?
The steel was a plain carbon with 0.55% Carbon. The steel was cast into 7" squares and 40 ft long. It was then rolled into rounds to ship to the customer for forging.