Sprayboy:
I understand cryo only as a layman thru the 40+ hours of web research i've done, plus as and end user....
Cryo changes the molecular composition AND structure of metals.
The benefits include: tighter surface molecular structure yields:
higher "lubricity",
increased resistance to wear
increased rate of heat dissipation
increased torsional and tensile strength
cleaning is easier because the surface is a "tighter grain", less crud sticks to it.
I saw a tech report on TiN, saying that its durability/wear factor is incresed by 200to400 per cent...I can't remember the increase for chromium plating.
Best think is to research cryo treatment on the web, look up "austenite", "martensite", "heat treatment..
Be advised that PROPER cryo treatment takes temp down to minus 320 degrees F; holds for X hours, returns to room temp, then UP TO x degrees (400??) F for the final heat treatment.
it is not just the deep freeze that everyone thinks of it.
for example: 304 stainless is
"austinitic", deep freeze to room temp convererts it to "brittle martensite"; final heat treat converts the brittle to hard/durable martensite (possibly magnetized!!).
Fascinating process and results.
hope this helps