I'm guessing that is under conditions of a "typical" house fire. What if the fire burns longer than two hours?

In any case, I doubt that a hard drive would survive for any length of time at 177 degrees C (350 degrees F). All the plastic bits would melt, possibly the case would warp, and you are actually perilously close to the melting point of many common solder alloys.

I think the best you could hope for would be that the platters themselves might be undamaged enough that a recovery $peciali$t might be able to save some of the data.

tanstaafl.