Hey all,
Recently I had a day to hang out with 2 of the guys that I competed against on Forged In Fire, Tim and Andrew. We all met at the shop of one of those fellas...He's a JS and really knows his stuff (although he didn't win that episode). Anyway, that's just some friendly trash talk for us..
So, during the visit, we swapped some steel. I took a couple of MONSTER bars of 4140 to give to each of them. Tim gave Andrew and I a couple of 5 foot sticks of 3/4" square bar. He said that he'd had them for years and that the guy he got them from said that they were 1090 Modified. When I asked what the modified meant, he said "I have no idea, and haven't been able to find anything about it".
I've since searched and searched and really couldn't find anything on 1090 modified either. Tim said that they were actually fence posts for a decorative fence.
I was hoping that the vast knowledge base here would maybe have some idea..any help would be appreciated. I'm thinking about forging a few blades from it, but I need to do some heat treat testing prior.
Generally when the term "Modified" is used in reference to a given steel, it means that one or more of the elements present the the steel's typical makeup has been "modified" (more added or some taken away from the typical analysis of the given steel chemistry) to better suit the end use. Without having it's tested, there's no way of knowing specifically which alloy(s) were modified.
At one time there was a 1084M (modified), and in it's case, there was the addition of a small amount of Molybdenum.
Ed Caffrey, ABS MS
"The Montana Bladesmith"
www.CaffreyKnives.net
|quoted:
Generally when the term "Modified" is used in reference to a given steel, it means that one or more of the elements present the the steel's typical makeup has been "modified" (more added or some taken away from the typical analysis of the given steel chemistry) to better suit the end use. Without having it's tested, there's no way of knowing specifically which alloy(s) were modified.
At one time there was a 1084M (modified), and in it's case, there was the addition of a small amount of Molybdenum.
Thank you, sir. I appreciate the response. I assumed it was a modification of the alloy, I just wasn't sure if there was a standard "modification" such as the increase, or decrease in Molybdenum.
I suppose I'll have to chop a piece off and have it tested to really find out.\
Again, I appreciate it, Mr. Caffrey.
