'Vaporized' Steel From WTC 7
The photo above is a sample (showing what remained of part of a structural steel I-beam) depicted in the FEMA 403 [May 2002] Building Performance Study (BPAT) Appendix C: A Limited Metallurgical Examination and is believed to have come from the WTC 7 debris pile. According to Dr Steven E Jones, Appendix C of the FEMA 403 was the only properly peer-reviewed section of the entire paper. The report states, 'Evidence of a severe high temperature corrosion attack on the steel, including oxidation and sulfidation with subsequent intragranular melting, was readily visible in the near-surface microstructure. A liquid eutectic mixture* containing primarily iron, oxygen, and sulfur formed during this hot corrosion attack on the steel. This sulfur-rich liquid penetrated preferentially down grain boundaries of the steel, severely weakening the beam.' ... 'The thinning of the steel occurred by a high-temperature corrosion due to a combination of oxidation and sulfidation. Heating of the steel into a hot corrosive environment ...that liquefied the steel. (emphasis mine). The severe corrosion and subsequent erosion are a very unusual event. No clear explanation for the source of the sulfur has been identified.'
-It has now: Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe *A eutectic is a mixture of two elements or chemicals that have a lower melting point than either would individually. In this case, sulfur added thermite.
'FEMA appropriately called for further investigation of this finding, which the New York Times called “perhaps the deepest mystery uncovered in the investigation” (Killough-Miller, 2002). But the NIST report, in its section headed “Learning from the Recovered Steel,” fails even to mention either evaporation or sulfidation. ' (DR Griffin)
"A one-inch column has been reduced to half-inch thickness. Its edges--which are curled like a paper scroll--have been thinned to almost razor sharpness. Gaping holes-- some larger than a silver dollar--let light shine through a formerly solid steel flange. This Swiss cheese appearance shocked all of the fire-wise professors, who expected to see distortion and bending--but not holes.” -WPI
"One piece Dr. Astaneh-Asl saw was a charred horizontal I-beam from 7 World Trade Center, a 47-story skyscraper that collapsed from fire eight hours after the attacks. The beam, so named because its cross-section looks like a capital I, had clearly endured searing temperatures. Parts of the flat top of the I, once five-eighths of an inch thick, had vaporized. " [ Scarred Steel Holds Clues, And Remedies
[Chang. New York Times, October 2 2001]
“..fire and the structural damage . . . would not explain steel members in the debris pile that appear to have been partly evaporated in extraordinarily high temperatures.” -Dr. Jonathan Barnett, Professor of Fire Protection Engineering at Worcester Polytechnic Institute [
Engineers Suspect Diesel Fuel in Collapse of 7 World Trade Center
[Glanz. New York Times, November 29 2001]