- Joined
- Apr 22, 2004
- Messages
- 878
Just got analysis back... you've heard this story before I'm sure, guy who works in a shop gives you a piece of steel "it's good steel, tool steel, really hard" and then... mild. That's happened to me a lot.
Well this time I wrote the manufacturer and he told me it was mild steel... but I hardened it to about RC61 in water, so I got an analysis 'cuz I'm stubborn. Turns out it was 1045, perfect for some breaching tools I've been working on.
The other sample was pretty classic 15N20 with 2.524 Ni, a 54" round blade that will furnish material for a year, but the last one is a bit confusing, also a large saw blade but older...
C 0.90 Mn 0.300 Si 0.315 Cr 0.276 Ni 0.549
If anyone can ID that last alloy and maybe some Heat treat data that would be wonderful, thanks.
Well this time I wrote the manufacturer and he told me it was mild steel... but I hardened it to about RC61 in water, so I got an analysis 'cuz I'm stubborn. Turns out it was 1045, perfect for some breaching tools I've been working on.
The other sample was pretty classic 15N20 with 2.524 Ni, a 54" round blade that will furnish material for a year, but the last one is a bit confusing, also a large saw blade but older...
C 0.90 Mn 0.300 Si 0.315 Cr 0.276 Ni 0.549
If anyone can ID that last alloy and maybe some Heat treat data that would be wonderful, thanks.
