I work at a forge which has a collection of old farrier tools, , masons tools, and assorted old tools, as well as a bunch of old wrought iron bars removed from a fence that's about 75 or 100 years old,
I made a few fire strikers from some of the old farrier rasps. The teeth on these rasps are not all in nice precise alignment like a modern rasp so my guess is they were hand made. I heat treated to non magnetic and quenched in water. They do not generate sparks when struck with a sharp flint. I have made dozens of similar strikers using 1095 and/or modern farrier rasps and never had a problem,
I ran a couple of tests. I made quarter inch notches on either side of a two inch wide rasp and then fully hardened it. I tried breaking it on the anvil with no success so I put it in a vice and tried to break it using a four pound hammer,
I could not break it, It was not at all brittle, just behaved like a well tempered spring. Most of these will harden well, but rarely will any of them generate sparks.
Does anyone know what they might be made of ?
Thanks
PS I have used mystery metal occasionally and get consistent results. Almost always bad.
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