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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		 Toe
Radius		 Flange
Taper		 Depth
between
Fillets		 Buckling
Parameter		 Tosional Index Warping Constant Torsional
Constant
M h b (web)s (flange)t r1 r2 a d u x H J'
kg/m mm mm mm mm mm mm Degrees mm � � dm6 cm4
432x102x65 65,5 431,8 101,6 12,2 16,8 15,2 4,8 5 362,5 0,875 24,5 0,216 61,5
381x102x55 55,01 381 101,6 10,4 16,3 15,2 4,8 5 312,6 0,895 22,6 0,153 46,4
305x102x46 46,21 304,8 101,6 10,2 14,8 15,2 4,8 5 239,3 0,899 18,8 0,0842 35,9
305x89x42 41,81 304,8 88,9 10,2 13,7 13,7 3,2 5 245,4 0,887 20,3 0,0552 28,1
254x89x36 35,66 254 88,9 9,1 13,6 13,7 3,2 5 194,7 0,906 17 0,0347 23,2
254x76x28 28,18 254 76,2 8,1 10,9 12,2 3,2 5 203,9 0,886 21,2 0,0194 12,3
229x89x33 32,68 228,6 88,9 8,6 13,3 13,7 3,2 5 169,9 0,912 15,5 0,0263 20,6
229x76x26 26,08 228,6 76,2 7,6 11,2 12,2 3,2 5 177,8 0,901 18,7 0,0151 11,6
203x89x30 29,77 203,2 88,9 8,1 12,9 13,7 3,2 5 145,2 0,916 14 0,0192 18,1
203x76x24 23,85 203,2 76,2 7,1 11,2 12,2 3,2 5 152,4 0,911 16,5 0,0112 10,6
178x89x27 26,79 177,8 88,9 7,6 12,3 13,7 3,2 5 121 0,915 12,6 0,0134 15,3
178x76x21 20,84 177,8 76,2 6,6 10,3 12,2 3,2 5 128,8 0,911 15,3 0,00765 8,27
152x89x24 23,87 152,4 88,9 7,1 11,6 13,7 3,2 5 96,9 0,909 11,2 0,00882 12,7
152x76x18 17,91 152,4 76,2 6,4 9 12,2 2,4 5 105,9 0,901 14,4 0,00486 6,05
127x64x15 14,92 127 63,5 6,4 9,2 10,7 2,4 5 84 0,909 11,6 0,00188 5,01
102x51x10 10,4 101,6 50,8 6,1 7,6 9,1 2,4 5 65,8 0,9 10,8 0,000512 2,58
76x38x7 6,71 76,2 38,1 5,1 6,8 7,6 2,4 5 45,8 0,908 9,06 0,000101 1,26
Designation Mass
per
m		 Depth
of
Section		 Width
of
Section		 Thickness of Root
Radius		 Toe
Radius		 Flange
Taper		 Depth
between
Fillets		 Buckling
Parameter		 Tosional Index Warping Constant Torsional
Constant
M h b (web)s (flange)t r1 r2 a d u x H J'
kg/m mm mm mm mm mm mm Degrees mm � � dm6 cm4
Useful Related Links
  1. Section Properties Notes;... Explains the various properties in the above tables



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