SAMAC Articles

Tech Note – Steel Damage Due to Fire Exposure

Exposure to temperatures above 650°C, such as those from a fire, can negatively impact the strength of structural steel. Therefore, to assess the safety of a steel framed building after a fire, knowledge of the temperatures to which the steel was exposed is required. An effective method to determine this is to examine changes in other materials within the building. For example, charring of wood typically occurs at temperatures in the range of 230°C. One material that is excellent for this type of analysis is the primer coating applied to structural steel, as it is often present, and has seen temperatures similar to the steel being evaluated.

Click here to read the Fire, Paint and Steel tech note.