And . . . how did you reach that conclusion? I'm far from being an engineer, but I did study welding and precision mechanics. I'm perfectly familiar with how steel melts and what it takes to melt it.
This guy is an engineer. Allow him to explain.
http://education.jlab.org/qa/meltingpoint_01.html
I can tell you that he is absolutely correct. If I had my settings wrong, I could seriously weaken and even deform steel, but it would not cut or weld, depending on what I was doing with it. Mind you, it can be crushed and manipulated in many ways. Steel is not the be all, end all of metals. I could put a sheet of it in a one-ton brake and it would bend like butter in the sun. How many tons do you suppose those top floors weighed?
This guy is an engineer. Allow him to explain.
http://education.jlab.org/qa/meltingpoint_01.html
I can tell you that he is absolutely correct. If I had my settings wrong, I could seriously weaken and even deform steel, but it would not cut or weld, depending on what I was doing with it. Mind you, it can be crushed and manipulated in many ways. Steel is not the be all, end all of metals. I could put a sheet of it in a one-ton brake and it would bend like butter in the sun. How many tons do you suppose those top floors weighed?