Mon Jan 22, 2018 3:28 am by Jaakko Fagerlund
To quote a famous book: "Poc || GTFO"
Sure it melts at quite low temp, but have you actually tested this? The amount of heat you must pour into the lock in short time is not coming from those plumbers pliers, as metals are very good heat conductors. Or even if you are able to melt the lock, how long does it take to actually get an opening?
And as you mentioned, there's relockers in higher grade safes for a reason. Couple different types are heat sensistive and will fire long before you are near the melting point of anything.
In my mind this is like complaining about those Sentry safes being not resistant to brute force or having a tubular key bypass. It's the very reason they are not rated for burglary standards. This is the old age question of "what is enough" in terms of securing something? The counter question is always "what are you trying to protect against", "how much money do you want/need/can spend" and "what other layers do you have in your security".
I'll end this with a notion of aluminum containing alloys that are very much destroyed with a few drops of gallium.