These Pages include various standards. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use. It is also possible to become a BSI member and obtain copies of the Standards at much reduced prices.



Parallel Flanged Channels..BS 4:Part 1 2005
Torsion/ Buckling Parameters


Dimensions and Properties
Designation Mass
per
m		 Depth
of
Section		 Width
of
Section		 Thickness of Root
Radius		 Depth
between
Fillets		 Buckling
Parameter		 Tosional Index Warping Constant Torsional
Constant
M h b (web)s (flange)t r d u x H J'
kg/m mm mm mm mm mm mm � � dm6 cm4
430x100x64 64,4372809874363 430 100 11 19 15 362 0,917 22,5 0,219 63
380x100x54 53,9614559874363 380 100 9,5 17,5 15 315 0,932 21,2 0,15 45,7
300x100x46 45,5266309874362 300 100 9 16,5 15 237 0,944 17 0,0813 36,8
300x90x41 41,3915218319592 300 90 9 15,5 12 245 0,934 18,4 0,0581 28,8
260x90x35 34,8367718319592 260 90 8 14 12 208 0,942 17,2 0,0379 20,6
260x75x28 27,5833718319592 260 75 7 12 12 212 0,932 20,5 0,0203 11,7
230x90x32 32,1599218319592 230 90 7,5 14 12 178 0,95 15,1 0,0279 19,3
230x75x26 25,6640468319592 230 75 6,5 12,5 12 181 0,947 17,3 0,0153 11,8
200x90x30 29,7185718319592 200 90 7 14 12 148 0,954 12,9 0,0197 18,3
200x75x23 23,4464218319592 200 75 6 12,5 12 151 0,956 14,8 0,0107 11,1
180x90x26 26,0565468319592 180 90 6,5 12,5 12 131 0,949 12,8 0,0141 13,3
180x75x20 20,3378218319592 180 75 6 10,5 12 135 0,946 15,3 0,00754 7,34
150x90x24 23,8703218319592 150 90 6,5 12 12 102 0,936 10,8 0,0089 11,8
150x75x18 17,8729218319592 150 75 5,5 10 12 106 0,946 13,1 0,00467 6,1
125x65x15 14,7564718319592 125 65 5,5 9,5 12 82 0,942 11,1 0,00194 4,72
100x50x10 10,203159155477 100 50 5 8,5 9 65 0,942 10 0,000491 2,53
Designation Mass
per
m		 Depth
of
Section		 Width
of
Section		 Thickness of Root
Radius		 Depth
between
Fillets		 Buckling
Parameter		 Tosional Index Warping Constant Torsional
Constant
M h b (web)s (flange)t r1 d u x H J'
kg/m mm mm mm mm mm mm � � dm6 cm4
Useful Related Links
  1. Section Properties Notes;... Explains the various properties in the above tables



Remember - the information on this site is for general information purposes only and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about its completeness, accuracy, reliability, suitability or availability. Any reliance you place on such information is therefore strictly at your own risk.

Roy Beardmore passed away on 9th March 2013. He is sadly missed. This website, Roymech, has been an invaluable resource for engineers around the world and we hope to maintain this incredible legacy going forward.

Have a question? Contact us.

© 2020 Roymech.org