I tried searching for my question, but I can't seem to find anything.
I'm a beginner, this is my first knife and I decided to use a leaf spring to make a tiny 3 inch long by 1 inch wide knife to begin with. The shape is good, I heated it up and left it to air cool and after a few minutes I tried to file it down with a bastard file, but the file skated. I have no idea why it hardened, so I heated it up again and tried putting it in the dirt to cool and still the file skated. I tested the leaf spring and it doesn't skate a file, anything I'm missing?
