What percentage of strength does cold drawn steel lose at 800 degrees?

Cold drawn steel experiences a significant reduction in strength when exposed to high temperatures, particularly at 800 degrees Fahrenheit. At this temperature, the metal undergoes changes in its microstructural properties, affecting its ability to bear loads and resist deformation. Research indicates that the reduction in strength can be as high as 55%, highlighting the material's vulnerability to thermal effects. This understanding is crucial for construction and engineering applications, as it impacts safety considerations in fire conditions. Knowing the specific percentage of strength loss allows engineers and builders to make informed decisions about materials used in structures, particularly in areas prone to fire hazards.