Nasa is making plans to de-orbit the ISS safely over the pacific ocean, this eventually leads to the question of whether or not an ISS module can survive reentry (survive meaning it is recognizable upon being retreived)
“Aluminum, rather than steel, comprises most of the outer shell of the modules” https://science.nasa.gov/science-news/science-at-nasa/2001/ast14mar_1 . Aluminum has low melting point and softens significantly before it melts. Aluminum and Titanium are major components of the modules. Both are combustible. Titanium will burn in nitrogen, in the absence of oxygen. https://umdearborn.edu/offices/environmental-health-and-safety/lab-safety/chemical-safety/combustible-metals , https://umdearborn.edu/offices/environmental-health-and-safety/lab-safety/chemical-safety/combustible-metals Kevlar melts at an even lower temperature (500*C). A module is unlikely to survive re-entry intact. Try burning a beer can with a propane soldering torch for a good visual. The steel components of the module have a much better chance of landing as debris.
A component that is much more likely to survive than modules are the four NORS oxygen and nitrogen cylinders. They are 1m long and weigh about 100kg. https://www.nasa.gov/content/air-supply-high-pressure-tanks-ready-for-space-station . Their operational pressure is 6000 psi, about twice that of SCUBA or welding tanks. They are seriously beefy components. I couldn’t source their construction, but they are likely Type IV Composite Overwrapped Pressure Vessels
This (not so new) article says it can:
"NASA estimates that 16 percent of the ISS would likely survive the burn and stresses of reentry, between 53,500 and 173,250 pounds falling to earth. "