Hi, I'm a writer of short stories. Right now I have a problem. In my current project, a private investigator is looking into a fire that has destroyed a bunch of valuables in an office building. One of them was a 17th century Japanese sword. I need to know this:
What kind of steel did 17th century Japanese bladesmiths typically use and at what temperature does it just up and melt? If it did melt and was then cooled to a solidified state after the fire died down, what would it look like (would elements of the alloy separate from other elements, for example)?
Also: Is there a common modern steel alloy that melts down at a lower temperature than the 17th century Japanese type?
I don't know a thing about metallurgy, so I kind of feel stupid asking these things.
If anybody can answer this, I'd really appreciate it.