European Technical Approval Technical Approval ETA 12 ... - Hempel

Page 31 of 46 of ETA 12/0581, issued on 17.01.2013
Table A1.21: Columns, 4-sided circular hollow sections.
Section Factor
Design Temperature 450ºC
Thickness (mm ) required for the RF period –only intumescent coating
m -1 15 min 30 min 45 min 60 min 90 min 120 min 180 min 240 min 300 min
45 0,256 0,256 0,621 1,213 2,397 3,581 - - -
50 0,256 0,256 0,783 1,427 2,715 4,004 - - -
55 0,256 0,256 0,937 1,632 3,021 4,410 - - -
60 0,256 0,343 1,086 1,829 3,314 4,799 - - -
65 0,256 0,440 1,229 2,018 3,596 5,174 - - -
70 0,256 0,533 1,366 2,200 3,868 - - - -
75 0,256 0,622 1,499 2,375 4,129 - - - -
80 0,256 0,708 1,626 2,544 4,381 - - - -
85 0,256 0,791 1,749 2,707 4,624 - - - -
90 0,256 0,871 1,868 2,865 4,858 - - - -
95 0,256 0,949 1,983 3,016 5,084 - - - -
100 0,256 1,024 2,093 3,163 - - - - -
105 0,256 1,096 2,200 3,305 - - - - -
110 0,256 1,166 2,304 3,442 - - - - -
115 0,256 1,233 2,404 3,575 - - - - -
120 0,256 1,299 2,501 3,703 - - - - -
125 0,256 1,362 2,595 3,827 - - - - -
130 0,256 1,424 2,686 3,948 - - - - -
135 0,256 1,483 2,774 4,065 - - - - -
140 0,256 1,541 2,860 4,178 - - - - -
145 0,256 1,597 2,943 4,288 - - - - -
150 0,280 1,652 3,024 4,395 - - - - -
155 0,308 1,705 3,102 4,499 - - - - -
160 0,334 1,756 3,178 4,600 - - - - -
165 0,360 1,806 3,252 4,698 - - - - -
170 0,386 1,855 3,324 4,794 - - - - -
175 0,410 1,902 3,394 4,886 - - - - -
180 0,434 1,948 3,463 4,977 - - - - -
185 0,457 1,993 3,529 5,065 - - - - -
190 0,480 2,037 3,594 5,150 - - - - -
195 0,502 2,079 3,657 5,234 - - - - -
200 0,524 2,121 3,718 - - - - - -
205 0,545 2,161 3,778 - - - - - -
210 0,565 2,201 3,836 - - - - - -
215 0,585 2,239 3,893 - - - - - -
220 0,605 2,277 3,949 - - - - - -
225 0,624 2,314 4,003 - - - - - -
230 0,642 2,349 4,056 - - - - - -
235 0,661 2,384 4,108 - - - - - -
240 0,678 2,418 4,159 - - - - - -
245 0,696 2,452 4,208 - - - - - -
250 0,713 2,484 4,256 - - - - - -
255 0,729 2,516 4,304 - - - - - -
260 0,745 2,548 4,350 - - - - - -
265 0,761 2,578 4,395 - - - - - -
270 0,777 2,608 4,439 - - - - - -
275 0,792 2,637 4,483 - - - - - -
280 0,807 2,666 4,525 - - - - - -
285 0,821 2,694 4,566 - - - - - -
290 0,836 2,721 4,607 - - - - - -
295 0,849 2,748 4,647 - - - - - -
300 0,863 2,775 4,686 - - - - - -
305 0,877 2,800 4,724 - - - - - -
310 0,890 2,826 4,762 - - - - - -
315 0,903 2,850 4,798 - - - - - -
320 0,915 2,875 4,834 - - - - - -
325 0,928 2,899 4,870 - - - - - -
330 0,940 2,922 4,904 - - - - - -
335 0,952 2,945 4,938 - - - - - -
340 0,963 2,967 4,972 - - - - - -
345 0,975 2,990 5,004 - - - - - -
350 0,986 3,011 5,036 - - - - - -
355 0,997 3,033 5,068 - - - - - -