UL Design X790

2-Hour Fire Rated Steel Column — SFRM (CAFCO / Isolatek), W/D-based thickness

UL Design X790 — wide-flange steel column (min W6x9 through W14x730), steel pipe or tube, protected with SFRM (Isolatek CAFCO 300 series and alternates), contour or boxed. For a W10x49: 1 hr = 9/16", 1-1/2 hr = 13/16", 2 hr = 1-1/8", 3 hr = 1-5/8", 4 hr = 2-1/8". Alternate equation h = R/(75(W/D)+32). Optional metal lath for contour application.

W-shape column min W6x9 (or pipe/tube), CAFCO SFRM, thickness by W/D and rating

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  • 6 related assemblies
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