Fire resistance of construction steel 1

[civinco01]

Dear Colleagues:

Can anyone advice if there is a special type of Steel that I can specify to comply with special Fire Ratings. In fact how can I comply with a Passive Fire rating of 15 min or 30 min or even 60 minutes.

can I simply comply changing the type of steel or by specifying greater sections.

 

[stanweld]

Fire proofing is applied to the surface of structural steel to comply with Fire Rating classifications.