Since you have me on ignore, you will just miss the words of wisdom.
How many different metals which melt at under 1,000C were used in the construction of, and spread throughout the towers?
(take a guess....)
about a dozen. All of them would have been present in the towers and in the piles. The temperuatres would EASILY have turned those dozen metals into liquid/molten form.
Again and again I ask you. Can you or anyone who is untrained with very little experience tell the difference between molten lead, molten tin, molten zinc, molten aluminum, molten colbalt (and all the rest?) Could they tell the difference between MOLTEN GLASS/MOLTEN plastics?
just by looking? Really?
Now comes the better question. Can you ELIMINATE any of those dozen metals which would become molten at 1000C from the datamined quotes? Can you ELIMINATE the possibility of molten glass or plastics?
what? <crickets chirping>
No you can't. If you cannot eliminate very easy to find, reasonable examples, then you CANNOT claim it was molten steel.
It is called experimental design, look it up.