Maybe? I don't know. But according to the article and the official NIST findings the fires only reached about 1832°F
And I agree with your above post that the steel didn't have to melt for the building to collapse no argument there. The question is was there molten steel as some evidence suggest? And if so what exactly caused it?
Isolated heat pockets, due to chimney effect of air drafts across the fires? Aluminum and magnesium burning?
Jet fuel easily burns above 3000 degrees if conditions are favorable, and jet engines can easily melt if given too much fuel. They are equipped with exhaust gas temp gauges to help limit burn temps below 1500 to 1900 degrees, depending on the engine. Burn temp is also a limiting factor on diesel engine power output, give it more fuel, it burns hotter and makes more power.....until something gets too hot and fails. Diesel fuel is essentially jet fuel.