R esearch Situation and D evelopm entT rend ofF ire-R esistantSteel for B uilding S tructure
WANG Daomei
DENG Wei
CUI Qiang
Abstract：Fire-resistant steel is the first choice of green steel materials of construction steel structure. Composition design of different ideas through the production of iron and steel enterprises abroad have developed fire-resistant steel at different grades, especially has been great developed and widely used in high-rise building construction. China also conducted research and development, and the performance reached a considerable level with foreign fire-resistant steel, but less application. The reason is that the traditional fire-resistant steel contains high Mo content, alloy cost is much higher than ordinary construction steel. Fire-resistant steel should possess a lot of bainite to ensure high strength at elevated temperature, but bainite is the microstructure transformed at middle temperature, which is difficult to control by TMCP process, and that is difficulty to develop. The development of economic fire-resistant steel with low Mo content, high strength, well tougthness, and replace ordinary construction steel + fire-resistant coating, is one of the development trend of the steel structure of modern architecture.
Keywords：fire-resistant steelmicrostructure controlhigh strengthlowcost
Publication Date：2014-09-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 5-8 )