"Molten steel" is something that 9/11 Truth theorists use as evidence of controlled demolition. They point to the hot spots in the debris, and accounts of "rivers of molten metal" days after the collapse.
The conventional explanation for the hot spots is that they were caused simply by fires.
The presence of molten steel is meant to be evidence that thermite was used to melt lots of columns.
There's various objections to this theory. But I'd like to focus on one thing: how long can steel remain liquid without an additional heat source?
There's various equations, but much depends on the surrounding environment, and how well it insulates, and possibly reflects radiated heat. But is there a practical example we can use, like cast iron?
Iron and steel are often cast in sand molds, so there should be lots of references to how long it takes to cool.
https://www.foundry-planet.com/news...ation/?cHash=4c4245b391d11df364479c2b58f69e86
What about smaller pieces, like a cast iron pan or a wheel.
This video shows the casting of some 45kg wheels:
Source: https://www.youtube.com/watch?v=eTr8cscmx-M

But he does not say how long it took to cool, just that he came back "some days later".
What I would like to establish is what is an actual plausible scenario for the lifetime molten steel underground, assuming it came from the melting of columns with thermite.
Any suggestions welcome!
The conventional explanation for the hot spots is that they were caused simply by fires.
The presence of molten steel is meant to be evidence that thermite was used to melt lots of columns.
There's various objections to this theory. But I'd like to focus on one thing: how long can steel remain liquid without an additional heat source?
There's various equations, but much depends on the surrounding environment, and how well it insulates, and possibly reflects radiated heat. But is there a practical example we can use, like cast iron?
Iron and steel are often cast in sand molds, so there should be lots of references to how long it takes to cool.
https://www.foundry-planet.com/news...ation/?cHash=4c4245b391d11df364479c2b58f69e86
That maybe says 10 tons would take "several weeks" to get to 300C. But the initial cooling is faster.The economic development and manufacturing of technological innovative castings up to 10 tons
...
The cooling rate of a casting decreases during the cooling process due to changing thermal gradients. This is particularly important for very large castings with a cooling time of up to several weeks in order to reach the desired shakeout temperature (300 °C).
What about smaller pieces, like a cast iron pan or a wheel.
This video shows the casting of some 45kg wheels:
Source: https://www.youtube.com/watch?v=eTr8cscmx-M
But he does not say how long it took to cool, just that he came back "some days later".
What I would like to establish is what is an actual plausible scenario for the lifetime molten steel underground, assuming it came from the melting of columns with thermite.
Any suggestions welcome!
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