[TheForge] Re: File Making

[James Binnion]

Kasenit when properly applied (work in a container filled so that the  
kasenit covers the work on all sides) and heated to 1650 F hardens to  
a depth of .005" in 15 min.

A quick dip in the powder and a few minutes back in the fire results  
in a case depth of probably less than .001" this is not going to work  
for a file.

Kasenit is potassium ferrocyanide K4-Fe-(CN6)  and sodium ferrocyanide  
C6-Fe-N6-Na4 . Lots of carbon and nitrogen available to harden the  
steel and the potassium and sodium act to accelerate the process.

BTW  It is touted as a safe non poisonous product but don't allow it  
to come into contact with any acid or you will get hydrogen cyanide  
gas and you don't want to be around when that happens.


James Binnion
jbin at well.com