| 摘要 |
<p>The present invention is related to a fire resistance steel composition and process for preparing the same. The fire resistance steel of the current invention has a fire resistance yield ratio of 0.5 or more at a temperature of 600°C for a minimum duration of 60 minutes. In accordance the target room temperature properties for the present invention were aimed as YS 355-450 MPa minimum, UTS 490-540 MPa and elongation values greater than 20%. The steel is designed such that it is readily hot/cold formed and welded to form structural tubes of various cross sectional shape profiles that are being employed in the construction of multi storey buildings for offices, shopping malls, auditoriums, stadiums etc.</p> |
