I'm interested in trying case hardening but cannot get Kasenit or Cherry Red or any other specific case hardening compound (living overseas).
In a how-to I found this receipe:
13 parts hardwood charcoal (barbecue charcoal)
3 parts barium carbonate
2 parts sodium carbonate
1 part calcium carbonate
It does not mention if parts are measured by volume or by weight but at least these are all fairly easy to obtain substances. However said document described this mixture for use as a pack carburizing compound, they packed the pieces to be hardenend and this mixture in a box and heated it for several hours.
For convenience I would rather use the torch method; use a torch to heat the part to cherry red color and then dip it in the compound. Is this mixture suitable for this method also or is it not worth bothering?
This is an old thread but this information is really needed.
Kasenit once made in Mahwah NJ had only one active ingredient
Kasenit was able to penetrate 0.02" into mild steel.
Cynading is the best deepest and most readily do-able casehardening process ever available to the person who lacked a major industrial heat treat facility (AKA machine shops and hobbyists)
There is no other ingredient listed in the MSDS
You can buy POTASSIUM FERROCYANIDE from any chem supply.
Here is a page with Kasenite instructions
All the "Formula" that I've seen on the web are all little other than efforts at Carburizing which is woefully inferior to Cyaniding.
I have used Kasenit. It's as easy as they say, Heat the item with a torch cherry red, dip it in the can move it around a little and quench, repeat if desired. or bury it in the stuff and toss it in an oven for a while at 1650 and then quench.
I've seen the trihydrate of potassium ferrocyanide on ebay, but it's not the same thing. You can see from the below linear molecular formula: Thing is, I haven't a clue if they will do the same job.
I am buying some of the cheaper Trihydrate stuff to try out.
Potassium ferrocyanide trihyrate C6H6FeK4N6O3
Potassium ferrocyanide K4Fe(13CN)6 · 3H2O
CN is the cynaide