Reply #59: Read what you quoted again

[eyl]

Regarding reports of molten steel in the wreckage at Ground Zero (see September 12, 2001-February 2002): “Any molten steel in the wreckage was more likely due to the high temperature resulting from long exposure to combustion within the pile than to short exposure to fires or explosions while the buildings were standing.”

That is, heating after the collapse.

While it is - in theory - possible for a large amount of steel to take very long to cool, that's under circumstances which are extremely unlikely to occur in real life. In practise, any steel melted before or during the collapse would solidfy within hours if not minutes.