9/11 Ground Zero Debris Investigation - Part 3

“Many of the beams were twisted and distorted as though made of rubber or wax. Some beams were over 6 [inches] thick and bent like pretzels. Structural engineers, who are experts in steel structures that have suffered earthquakes and explosions claimed to have seen nothing like this before and could not imagine the kind of pressure and heat required to do this kind of damage.”

https://911conspiracy.wordpress.com/2010/01/24/molten-steel-extreme-temperatures-at-wtc/