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4340 steel
- Thread starter dian
- Start date
- Replies 6
- Views 637
gregormarwick
Diamond
- Joined
- Feb 7, 2007
- Location
- Aberdeen, UK
4340 doesn't have any added cobalt.
Link your source, because you're either misreading it or it's bullshit.
Link your source, because you're either misreading it or it's bullshit.
Microstructure and mechanical properties of friction stir processed cast Eglin steel (ES-1) - ScienceDirect
somehow its messed up, as far as i can see you take 4340, take out nickel, add cr, si and tungsten and get es-1. how that winds up cheaper is interesting, as tungsten costs 3x more than nickel.
somehow its messed up, as far as i can see you take 4340, take out nickel, add cr, si and tungsten and get es-1. how that winds up cheaper is interesting, as tungsten costs 3x more than nickel.
gregormarwick
Diamond
- Joined
- Feb 7, 2007
- Location
- Aberdeen, UK
I didn't properly understand your question first time around, my apologies.
Yeah it looks like a mistake, the composition of the steel is not the focus of that paper and looks as though it's mentioned only in passing.
If you look up Eglin steel the composition doesn't match what's stated there either.
