Hi guys,

I have some issues regarding the steel behaviour in unusual temperature environments.
This is something I searched for, but haven't found yet on any forum until now.

Which is the maximum temperature on which these steels can be exposed without being dequenched and loose the properties they obtained during the complex heat treatment?
What happens with my knife if I drop it by mistake in a pot of boiling soup (this means about 100 degrees Celsius)?
What if I use the knife tip to mingle some potatoes frying in sunflower oil (this means about 300 degrees Celsius)?
What happens if I let my knife on the sand on the beach exposed to the sun all day long during a canicular summer day? (I don't know exactly what temperature the knife can reach in this case, but it will obviously get extremely hot).

What should normally happen with my knife properties (hardness, lateral strength, edge retention, shock rezistence etc etc etc) in the above particular cases? Will it loose its hardness?

I'm also interested in what happens if my knife is used in sub-zero environments. For example, let's say it will chop frozen flash or wood at 30 degrees under zero. Will INFI be chipable or breakable at that temperature?

I'm currently an INFI only user, but I consider achieving some SwampRat and ScrapYard knives in the future too.

I think Jerry or Dan Busse may give the most appropriate answer to this, but there may be others who know something.

I'm really interested in this regards. Many thanks to anybody who can tell me anything!

Best Regards!