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This is that how jet fuel melted steel beams?
by 0x457 3y ago
This is that how jet fuel melted steel beams?
- afterburner 3y agoNot melt, soften slightly
- rob74 3y agoSoften "slightly", but enough to make the building which that steel is holding up collapse...
- pfdietz 3y agohttps://www.steelconstruction.info/Fire_damage_assessment_of_hot_rolled_structural_steelwork https://www.steelconstruction.info/Fire_damage_assessment_of... "Strength loss for steel is generally accepted to begin at about 300°C and increases rapidly after 400°C. By 550°C steel retains approximately 60% of its room temperature yield strength, and 45% of its stiffness. At high temperatures, steel is also subjected to significant thermal elongation, which may lead to adverse impacts, especially if it is restrained." At 800 C ("dull cherry red"), the yield strength is down ~90%: https://www.steelconstruction.info/images/9/99/Steel_strength_in_fire.png https://www.steelconstruction.info/images/9/99/Steel_strengt... This is talking about short term properties of steel, which would be important in building fires, but creep also increases with temperature.
- SideburnsOfDoom 3y agoHere's a blacksmith demonstrating this exactly: https://www.youtube.com/watch?v=FzF1KySHmUA https://www.youtube.com/watch?v=FzF1KySHmUA
- dboreham 3y agoWell there goes that conspiracy theory..
- shsbdncudx 3y agoConspiracy theories are like religions, they’re an act of faith not rationale