The National Institute of Standards and Technology, as part of its report on the collapse of the World Trade Center, characterized many important steels recovered from the buildings to provide stress-strain models to analyze the impact, fires, and resulting collapse. Those tests represent a large additional data set that can be used for modeling the response of steel structures to fire. The nine steels described in this data represent a selection of the steel most likely to have been involved in the fires in the World Trade Center.
This data was originally published in "High-temperature tensile constitutive data and models for structural steels in fire (NIST Technical Note 1714)" authored by William Luecke, Stephen W. Banovic, J. David McColskey. (DOI: https://dx.doi.org/10.6028/NIST.TN.1714)