Hi all I was trying to do a spark test but got pretty similar results and was hoping I could get some help from the masters in the forum...
So I found what I believe to be a piec of spring steel from a truck's suspension in the highway and brought it back to the shop and performed a spark test on it only to be more confused it. I've attached a video where you can see me performing the test.
The first is 5160 steel
The second is the steel I found on the highway
The third is a piece of rebar.
I would love to read your comments.
Thanks!
20191207_130917.mp4