[TheForge] Identifying metals

[Jonathan Nedbor]

Hi all,

Have a question about some mystery metal I picked up.

I have a bar of a heavy metal that I thought was cold rolled steel. The 
outside surface is a grayish bown color from age, and is silvery on the 
inside. I forged it hot under a power hammer and it is tough, moves ok but 
is hard. I was about to try to do a test hardening when I found it was 
non-magnetic, totally.

My guess is that it is monel, but don't have a way to narrow it down. Any 
suggestions?

Jonathan