NIST: Weak steel not a factor in WTC collapse

Kind of an old article, but definitely worth revisiting:

Early tests on steel beams from the World Trade Center show they generally met or were stronger than design requirements, ruling them out as a contributing cause of the collapse of the towers, federal investigators said Wednesday.

Engineers with the National Institute of Standards and Technology have conducted preliminary tests on some of the 236 pieces of steel from the wreckage, said Frank Gayle, who is leading NIST's review of the steel.

thanks for the link, i hadnt

thanks for the link, i hadnt seen it.