Properties - Hot Finished Square Hollow Sections

Welcome to our Hot Finished Square Hollow Section properties page! Here you'll find properties for all UK Hot Finished Square Hollow Section steel sections described by the Steelwork Design Guide to BS5950-1:2000, Volume 1, Section Properties, Member Capacities, 7th Edition (also known as The Blue Book). Sort the table below according to any property and select a CAD file to download using the reference links in the left-most column.

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Section ReferenceRatio for Local BucklingSecond Moment of AreaRadius of GyrationElastic ModulusPlastic ModulusTorsional ConstantsSurface Area
        Per MetrePer Tonne
 d/t(1)I
cm4
r
cm
Z
cm3
S
cm3
J
cm4
C
cm3
m2m2
40x40x3.010.39.781.54.895.9715.77.10.15244.7
40x40x3.29.510.21.495.116.2816.57.420.15242
40x40x4.0711.81.455.917.4419.58.540.1534.1
40x40x5.0513.41.416.688.6622.59.60.14727.8
50x50x3.013.720.21.918.089.732.111.80.19244.2
50x50x3.212.621.21.98.4910.233.812.40.19241.5
50x50x4.09.5251.869.9912.340.414.50.1933.6
50x50x5.0728.91.8211.614.547.616.70.18727.3
50x50x6.34.9432.81.7613.11755.218.80.18422.1
60x60x3.01736.22.3212.114.356.917.70.23243.9
60x60x3.215.838.22.3112.715.260.218.60.23241.2
60x60x4.01245.42.2715.118.372.5220.2333.3
60x60x5.0953.32.2317.821.986.425.70.22727
60x60x6.36.5261.62.1720.52610229.60.22421.7
60x60x8.04.569.72.0923.230.411833.40.21917.5
70x70x3.616.468.62.719.623.310828.70.27136.6
70x70x5.01188.52.6425.330.814236.80.26726.7
70x70x6.38.111042.5829.736.916942.90.26421.5
70x70x8.05.751202.534.243.820049.20.25917.3
80x80x3.619.21053.1126.23116438.50.31136.4
80x80x4.0171143.0928.63418041.90.3132.9
80x80x5.0131373.0534.241.121749.80.30726.6
80x80x6.39.71622.9940.549.726258.70.30421.3
80x80x8.071892.9147.359.531268.30.29917.1
90x90x3.6221523.5233.839.723749.70.35136.3
90x90x4.019.51663.53743.626054.20.3532.8
90x90x5.0152003.4544.45331664.80.34726.4
90x90x6.311.32383.45364.3382770.34421.2
90x90x8.08.252813.3262.677.645990.50.33916.9
100x100x4.0222323.9146.454.436168.20.3932.7
100x100x5.0172793.8655.966.443981.80.38726.3
100x100x6.312.93363.867.180.953497.80.38421.1
100x100x8.09.54003.7379.998.26461160.37916.8
100x100x10.074623.6492.41167611330.37413.6
120x120x5.0214984.688397.67771220.46726.2
120x120x6.3166034.621001209501470.46420.9
120x120x8.0127264.5512114611601760.45916.6
120x120x10.098524.4614217513802060.45413.5
120x120x12.56.69824.3416420716202360.44811
140x140x5.0258075.511513512501700.54726.1
140x140x6.319.29845.4414116615402060.54420.8
140x140x8.014.512005.3617120418902490.53916.5
140x140x10.01114205.2720224622702940.53413.4
140x140x12.58.216505.1623629327003420.52810.8
150x150x5.02710005.913415615501970.58726
150x150x6.320.812205.8516319219102400.58420.8
150x150x8.015.814905.7719923723502910.57916.5
150x150x10.01217705.6823628628303440.57413.3
150x150x12.5920805.5727734233804020.56810.8
160x160x5.02912306.3115317818902260.62726
160x160x6.322.415006.2618722023302750.62420.7
160x160x8.01718306.1822927228803350.61916.5
160x160x10.01321906.0927332934803980.61413.3
160x160x12.59.825805.9832239541604670.60810.7
160x160x14.28.2728105.935143645805080.6039.53
180x180x6.325.621707.0724128133603550.70420.7
180x180x8.019.52660729634941604340.69916.4
180x180x10.01531906.9135542450505180.69413.2
180x180x12.511.437906.842151160706130.68810.7
180x180x14.29.6841506.7246256667106700.6839.46
180x180x16.08.2545006.6450062173407240.6798.46
200x200x5.03724507.9524528337603620.78725.9
200x200x6.328.730107.8930135046504440.78420.6
200x200x8.02237107.8137143657805450.77916.3
200x200x10.01744707.7244753170306550.77413.2
200x200x12.51353407.6153464384907780.76810.6
200x200x14.211.158707.5458771494208540.7639.41
200x200x16.09.563907.46639785103009270.7598.4
250x250x6.336.760109.9348155692407120.98420.5
250x250x8.028.374609.86596694115008800.97916.3
250x250x10.02290609.777248511410010700.97413.1
250x250x12.517109009.6687310401720012800.96810.5
250x250x14.214.6121009.5896711601910014100.9639.31
250x250x16.012.6133009.5106012802110015500.9598.31
260x260x6.338.3679010.3522603104007731.0220.5
260x260x8.029.5842010.3648753130009561.0216.2
260x260x10.0231020010.27889241590011601.0113.1
260x260x12.517.81240010.195111301940013901.0110.5
260x260x14.215.3137009.991060126021700154019.3
260x260x16.013.3151009.91116013902390016900.9998.29
300x300x6.344.610500127038091610010401.1820.5
300x300x8.034.51310011.987510102020012901.1816.2
300x300x10.0271600011.8107012502480015801.1713
300x300x12.5211940011.7130015303030019001.1710.5
300x300x14.218.12160011.6144017103390021101.169.25
300x300x16.015.82390011.5159019003760023301.168.25
350x350x8.040.82110013.9121013903240017901.3816.2
350x350x10.0322590013.9148017203990021901.3713
350x350x12.5253150013.7180021104890026501.3710.4
350x350x14.221.63520013.7201023605490029601.369.21
350x350x16.018.93890013.6223026306100032601.368.2
400x400x10.0373910015.9196022606010029001.5712.9
400x400x12.5294780015.8239027807390035301.5710.4
400x400x14.225.25350015.7268031308300039401.569.18
400x400x16.0225930015.6297034809240043601.568.17
400x400x20.0177150015.43580425011200052401.556.58