Development and practical application of fire-resistant steel for buildings

Rikio Chijiiwa, Hiroshi Tamehiro, Ryuji Uemori, Yukihiko Horii, Yuzuru Yoshida, Kazuo Funato

Research output: Contribution to journalArticlepeer-review


In steel-frame buildings, steel members should be protected by spraying fire-resistant materials so as not to be heated to higher than 350°C during fires. The work of spraying fire-resistant materials, however, has an injurious effect on the workers' health and is a time-consuming job. In addition, the usable space of the building is reduced by such fire-resistant coating. Therefore, there has been an increasing demand for restricting fire-resistant coatings. The development of fire-resistant steels for buildings was aimed at increasing steel's elevated-temperature strength while assuring earthquake resistance, weldability and other properties equal to or better than those of conventional steels for buildings. This paper first describes fundamental studies made of the effects of alloying elements and manufacturing conditions on elevated-temperature strength, and then presents the development of a fire-resistant steel which provides high strength at 600°C while ensuring good earthquake resistance and weldability.

Original languageEnglish
Pages (from-to)55-66
Number of pages12
JournalSEAISI Quarterly (South East Asia Iron and Steel Institute)
Issue number4
Publication statusPublished - Oct 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry


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