Can fire test data obtained from mild steel be used to determine fire protection thicknesses for cast and wrought iron?
ASFP are of the opinion that data obtained from mild steel fire tests can be used to provide protection thicknesses for cast iron and wrought iron using the same limiting temperatures, subject to the conditions referenced in the following reports [a] and/or [b] [a] BCIRA Report ‘Cast iron in building structures – revived interest in a proven case’ by E.R.Evans dated November 1984. Further information can be obtained from:- Castings Technology International, Advanced Manufacturing Park, Brunel Way, Rotherham S60 5WG. T: +44 (0)114 254 1144, E: info@castingstechnology.com [b] ‘ Historic buildings and fire performance of cast iron structural elements’ by J R Barnfield & A M Porter NOTE that the Structural Engineer must establish the Section Factors and be satisfied with the integrity of the iron work before specifing fire protection.
