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Section properties<a id="tab1" name="tab1"></a>
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EN-Construction-Product-Blue Book-Celsius 420 CHS-Section properties

Celsius® 420 CHS

Eurocode 3 - UK National Annex (BS EN 1993-1-1: 2005, BS EN 10210-2: 2006)

Dimensions Links to other design tables
CHS tube nomenclature
 Celsius 355 SHS Celsius 420 SHS Celsius 460 SHS
Celsius 355 RHS Celsius 420 RHS Celsius 460 RHS
Celsius 355 CHS Celsius 420 CHS Celsius 460 CHS
Celsius 355 EHS    

Celsius®

CHS, Section properties - Dimensions and properties

These properties are based on the current availability of Celsius S355NH.  For availability of other grades, please refer to the relevant design property tables.

Section designation Dimensions and properties
Outside
diameter		 Thickness Mass per
metre		 Area of
section		 Ratio for
local
buckling		 Second
moment
of area		 Radius of
gyration		 Elastic
modulus		 Plastic
modulus		 Torsional constants Surface area
Inertia Modulus Per metre Per tonne
d t M A d/t I i Wel Wpl IT Ct As  
mm mm kg/m cm2   cm4 cm cm3 cm3 cm4 cm3 m2 m2
42.4 3.2 ✔ 3.09 3.94 13.3 7.62 1.39 3.59 4.93 15.2 7.19 0.133 43.0
3.6 ✔ 3.44 4.39 11.8 8.33 1.38 3.93 5.44 16.7 7.86 0.133 38.7
4.0 ✔ 3.79 4.83 10.6 8.99 1.36 4.24 5.92 18.0 8.48 0.133 35.1
5.0 ✔ 4.61 5.87 8.48 10.5 1.33 4.93 7.04 20.9 9.86 0.133 28.9
48.3 3.2 ✔ 3.56 4.53 15.1 11.6 1.60 4.80 6.52 23.2 9.59 0.152 42.7
3.6 ✔ 3.97 5.06 13.4 12.7 1.59 5.26 7.21 25.4 10.5 0.152 38.3
4.0 ✔ 4.37 5.57 12.1 13.8 1.57 5.70 7.87 27.5 11.4 0.152 34.8
5.0 ✔ 5.34 6.80 9.66 16.2 1.54 6.69 9.42 32.3 13.4 0.152 28.5
6.3 ✔ 6.53 8.31 7.67 18.7 1.50 7.76 11.2 37.5 15.5 0.152 23.3
60.3 3.2 ✔ 4.51 5.74 18.8 23.5 2.02 7.78 10.4 46.9 15.6 0.189 41.9
3.6 ✔ 5.03 6.41 16.8 25.9 2.01 8.58 11.6 51.7 17.2 0.189 37.6
4.0 ✔ 5.55 7.07 15.1 28.2 2.00 9.34 12.7 56.3 18.7 0.189 34.1
5.0 ✔ 6.82 8.69 12.1 33.5 1.96 11.1 15.3 67.0 22.2 0.189 27.7
6.3 ✔ 8.39 10.7 9.57 39.5 1.92 13.1 18.5 79.0 26.2 0.189 22.5
8.0 ✔ 10.3 13.1 7.54 46.0 1.87 15.3 22.1 92.0 30.5 0.189 18.3
76.1 3.2 ✔ 5.75 7.33 23.8 48.8 2.58 12.8 17.0 97.6 25.6 0.239 41.6
3.6 ✔ 6.44 8.20 21.1 54.0 2.57 14.2 18.9 108 28.4 0.239 37.1
4.0 ✔ 7.11 9.06 19.0 59.1 2.55 15.5 20.8 118 31.0 0.239 33.6
5.0 ✔ 8.77 11.2 15.2 70.9 2.52 18.6 25.3 142 37.3 0.239 27.3
6.3 ✔ 10.8 13.8 12.1 84.8 2.48 22.3 30.8 170 44.6 0.239 22.1
8.0 ✔ 13.4 17.1 9.51 101 2.42 26.4 37.3 201 52.9 0.239 17.8
88.9 3.2 ✔ 6.76 8.62 27.8 79.2 3.03 17.8 23.5 158 35.6 0.279 41.3
3.6 ✔ 7.57 9.65 24.7 87.9 3.02 19.8 26.2 176 39.5 0.279 36.9
4.0 ✔ 8.38 10.7 22.2 96.3 3.00 21.7 28.9 193 43.3 0.279 33.3
5.0 ✔ 10.3 13.2 17.8 116 2.97 26.2 35.2 233 52.4 0.279 27.1
6.3 ✔ 12.8 16.3 14.1 140 2.93 31.5 43.1 280 63.1 0.279 21.8
8.0 ✔ 16.0 20.3 11.1 168 2.87 37.8 52.5 336 75.6 0.279 17.4
10.0 ✔ 19.5 24.8 8.89 196 2.81 44.1 62.6 392 88.2 0.279 14.3
114.3 3.6 ✔ 9.83 12.5 31.8 192 3.92 33.6 44.1 384 67.2 0.359 36.5
4.0 ✔ 10.9 13.9 28.6 211 3.90 36.9 48.7 422 73.9 0.359 32.9
5.0 ✔ 13.5 17.2 22.9 257 3.87 45.0 59.8 514 89.9 0.359 26.6
6.3 ✔ 16.8 21.4 18.1 313 3.82 54.7 73.6 625 109 0.359 21.4
8.0 ✔ 21.0 26.7 14.3 379 3.77 66.4 90.6 759 133 0.359 17.1
10.0 ✔ 25.7 32.8 11.4 450 3.70 78.7 109 899 157 0.359 14.0
139.7 3.6 ✔ 12.1 15.4 38.8 357 4.81 51.1 66.7 713 102 0.439 36.3
4.0 ✔ 13.4 17.1 34.9 393 4.80 56.2 73.7 786 112 0.439 32.8
5.0 ✔ 16.6 21.2 27.9 481 4.77 68.8 90.8 961 138 0.439 26.4
6.3 ✔ 20.7 26.4 22.2 589 4.72 84.3 112 1180 169 0.439 21.2
8.0 ✔ 26.0 33.1 17.5 720 4.66 103 139 1440 206 0.439 16.9
168.3 5.0 ✔ 20.1 25.7 33.7 856 5.78 102 133 1710 203 0.529 26.3
6.3 ✔ 25.2 32.1 26.7 1050 5.73 125 165 2110 250 0.529 21.0
8.0 ✔ 31.6 40.3 21.0 1300 5.67 154 206 2600 308 0.529 16.7
10.0 ✔ 39.0 49.7 16.8 1560 5.61 186 251 3130 372 0.529 13.6
12.5 ✔ 48.0 61.2 13.5 1870 5.53 222 304 3740 444 0.529 11.0
193.7 5.0 ✔ 23.3 29.6 38.7 1320 6.67 136 178 2640 273 0.609 26.1
6.3 ✔ 29.1 37.1 30.7 1630 6.63 168 221 3260 337 0.609 20.9
8.0 ✔ 36.6 46.7 24.2 2020 6.57 208 276 4030 416 0.609 16.6
10.0 ✔ 45.3 57.7 19.4 2440 6.50 252 338 4880 504 0.609 13.4
12.5 ✔ 55.9 71.2 15.5 2930 6.42 303 411 5870 606 0.609 10.9
14.2 ✔ 62.9 80.1 13.6 3240 6.37 335 458 6490 670 0.609 9.68
16.0 ✔ 70.1 89.3 12.1 3550 6.31 367 507 7110 734 0.609 8.69
219.1 5.0 ✔ 26.4 33.6 43.8 1930 7.57 176 229 3860 352 0.688 26.1
6.3 ✔ 33.1 42.1 34.8 2390 7.53 218 285 4770 436 0.688 20.8
8.0 ✔ 41.6 53.1 27.4 2960 7.47 270 357 5920 540 0.688 16.5
10.0 ✔ 51.6 65.7 21.9 3600 7.40 328 438 7200 657 0.688 13.3
12.5 ✔ 63.7 81.1 17.5 4340 7.32 397 534 8690 793 0.688 10.8
14.2 ✔ 71.8 91.4 15.4 4820 7.26 440 597 9640 880 0.688 9.58
16.0 ✔ 80.1 102 13.7 5300 7.20 483 661 10600 967 0.688 8.59
244.5 5.0 ✔ 29.5 37.6 48.9 2700 8.47 221 287 5400 441 0.768 26.0
6.3 ✔ 37.0 47.1 38.8 3350 8.42 274 358 6690 547 0.768 20.8
8.0 ✔ 46.7 59.4 30.6 4160 8.37 340 448 8320 681 0.768 16.4
10.0 ✔ 57.8 73.7 24.5 5070 8.30 415 550 10100 830 0.768 13.3
12.5 ✔ 71.5 91.1 19.6 6150 8.21 503 673 12300 1010 0.768 10.7
14.2 ✔ 80.6 103 17.2 6840 8.16 559 754 13700 1120 0.768 9.53
16.0 ✔ 90.2 115 15.3 7530 8.10 616 837 15100 1230 0.768 8.51
273.0 5.0 ✔ 33.0 42.1 54.6 3780 9.48 277 359 7560 554 0.858 26.0
6.3 ✔ 41.4 52.8 43.3 4700 9.43 344 448 9390 688 0.858 20.7
8.0 ✔ 52.3 66.6 34.1 5850 9.37 429 562 11700 857 0.858 16.4
10.0 ✔ 64.9 82.6 27.3 7150 9.31 524 692 14300 1050 0.858 13.2
12.5 ✔ 80.3 102 21.8 8700 9.22 637 849 17400 1270 0.858 10.7
14.2 ✔ 90.6 115 19.2 9700 9.16 710 952 19400 1420 0.858 9.47
16.0 ✔ 101 129 17.1 10700 9.10 784 1060 21400 1570 0.858 8.50
17.5 ✔ 110 140 15.6 11500 9.05 844 1140 23000 1690 0.858 7.80
323.9 5.0 ✔ 39.3 50.1 64.8 6370 11.3 393 509 12700 787 1.02 26.0
6.3 ✔ 49.3 62.9 51.4 7930 11.2 490 636 15900 979 1.02 20.7
8.0 ✔ 62.3 79.4 40.5 9910 11.2 612 799 19800 1220 1.02 16.4
10.0 ✔ 77.4 98.6 32.4 12200 11.1 751 986 24300 1500 1.02 13.2
12.5 ✔ 96.0 122 25.9 14800 11.0 917 1210 29700 1830 1.02 10.6
14.2 ✔ 108 138 22.8 16600 11.0 1020 1360 33200 2050 1.02 9.44
16.0 ✔ 121 155 20.2 18400 10.9 1140 1520 36800 2270 1.02 8.43
17.5 ✔ 132 168 18.5 19800 10.9 1220 1640 39700 2450 1.02 7.73
355.6 6.3 ✔ 54.3 69.1 56.4 10500 12.4 593 769 21100 1190 1.12 20.6
8.0 ✔ 68.6 87.4 44.5 13200 12.3 742 967 26400 1480 1.12 16.3
10.0 ✔ 85.2 109 35.6 16200 12.2 912 1200 32400 1820 1.12 13.1
12.5 ✔ 106 135 28.4 19900 12.1 1120 1470 39700 2230 1.12 10.6
14.2 ✔ 120 152 25.0 22200 12.1 1250 1660 44500 2500 1.12 9.33
16.0 ✔ 134 171 22.2 24700 12.0 1390 1850 49300 2770 1.12 8.36
17.5 ✔ 146 186 20.3 26600 12.0 1500 2000 53300 3000 1.12 7.67
406.4 10.0 ✔ 97.8 125 40.6 24500 14.0 1200 1570 49000 2410 1.28 13.1
12.5 ✔ 121 155 32.5 30000 13.9 1480 1940 60100 2960 1.28 10.6
14.2 ✔ 137 175 28.6 33700 13.9 1660 2180 67400 3320 1.28 9.34
16.0 ✔ 154 196 25.4 37400 13.8 1840 2440 74900 3690 1.28 8.31
17.5 ✔ 168 214 23.2 40500 13.8 1990 2650 81000 3990 1.28 7.62
457.0 10.0 ✔ 110 140 45.7 35100 15.8 1540 2000 70200 3070 1.44 13.1
12.5 ✔ 137 175 36.6 43100 15.7 1890 2470 86300 3780 1.44 10.5
14.2 ✔ 155 198 32.2 48500 15.7 2120 2780 96900 4240 1.44 9.29
16.0 ✔ 174 222 28.6 54000 15.6 2360 3110 108000 4720 1.44 8.28
17.5 ✔ 190 242 26.1 58400 15.6 2560 3380 117000 5120 1.44 7.58
508.0 10.0 ✔ 123 156 50.8 48500 17.6 1910 2480 97000 3820 1.60 13.0
12.5 ✔ 153 195 40.6 59800 17.5 2350 3070 120000 4700 1.60 10.5
14.2 ✔ 173 220 35.8 67200 17.5 2650 3460 134000 5290 1.60 9.25
16.0 ✔ 194 247 31.8 74900 17.4 2950 3870 150000 5900 1.60 8.25
17.5 ✔ 212 270 29.0 81200 17.4 3200 4210 162000 6390 1.60 7.55

Celsius® is a trademark of Tata Steel. For further information visit our product catalogue.
✔Items which are readily available in the UK market. Unticked items are subject to minimum order quantity and longer lead times.
 

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Axial compression resistance<a id="tab2" name="tab2"></a>
External

EN-Construction-Product-Blue Book-Celsius 420 CHS-Axial compression resistance

Celsius® 420 CHS

 Eurocode 3 - UK National Annex (BS EN 1993-1-1: 2005, BS EN 10210-2: 2006)

Dimensions Links to other design tables
CHS tube nomenclature
 Celsius 355 SHS Celsius 420 SHS Celsius 460 SHS
Celsius 355 RHS Celsius 420 RHS Celsius 460 RHS
Celsius 355 CHS Celsius 420 CHS Celsius 460 CHS
Celsius 355 EHS    

Axial compression resistance for Celsius® 420 CHS

Section designation Mass
per
metre		 Tension
resistance		 Compression resistance Nb,Rd (kN)
for buckling lengths (m)
Outside
diameter		 Thickness
d t Npl,Rd
mm mm kg/m kN 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0
42.4 3.2   3.09 165 107 59.2 35.3 23.2 16.4 12.2 9.37 6.06 4.24 3.13 2.40 1.90 1.55 1.28 1.08 0.919 0.793
3.6   3.44 184 119 65.1 38.8 25.5 18.0 13.4 10.3 6.66 4.66 3.44 2.64 2.09 1.70 1.41 1.18 1.01 0.871
4.0   3.79 203 128 69.8 41.5 27.3 19.2 14.3 11.0 7.12 4.98 3.67 2.82 2.24 1.82 1.50 1.26 1.08 0.931
5.0   4.61 247 152 81.6 48.4 31.8 22.4 16.6 12.8 8.28 5.79 4.27 3.28 2.60 2.11 1.75 1.47 1.25 1.08
48.3 3.2   3.56 190 141 85.9 52.5 34.8 24.6 18.3 14.2 9.18 6.42 4.75 3.65 2.89 2.35 1.94 1.64 1.40 1.21
3.6   3.97 213 157 95.0 58.0 38.4 27.2 20.2 15.6 10.1 7.09 5.24 4.02 3.19 2.59 2.15 1.81 1.54 1.33
4.0   4.37 234 171 102 62.4 41.3 29.2 21.7 16.8 10.9 7.61 5.62 4.32 3.42 2.78 2.30 1.94 1.65 1.43
5.0   5.34 286 205 121 73.5 48.6 34.4 25.6 19.7 12.8 8.95 6.61 5.08 4.02 3.27 2.71 2.28 1.94 1.68
6.3   6.53 349 245 142 85.6 56.5 40.0 29.7 22.9 14.8 10.4 7.67 5.89 4.67 3.79 3.14 2.64 2.25 1.95
60.3 3.2   4.51 241 204 151 99.6 67.7 48.5 36.3 28.1 18.3 12.8 9.50 7.31 5.80 4.71 3.91 3.29 2.81 2.42
3.6   5.03 269 227 167 110 74.9 53.6 40.1 31.1 20.2 14.2 10.5 8.09 6.41 5.21 4.32 3.64 3.11 2.68
4.0   5.55 297 250 184 121 81.9 58.6 43.8 34.0 22.1 15.5 11.5 8.83 7.01 5.69 4.72 3.97 3.39 2.93
5.0   6.82 365 305 220 143 97.1 69.4 51.9 40.2 26.1 18.3 13.6 10.4 8.28 6.72 5.57 4.69 4.00 3.46
6.3   8.39 449 372 264 171 115 82.2 61.4 47.6 30.9 21.7 16.0 12.3 9.78 7.95 6.59 5.55 4.73 4.09
8.0   10.3 550 450 312 200 134 95.7 71.5 55.4 36.0 25.2 18.6 14.3 11.4 9.24 7.65 6.44 5.50 4.75
76.1 3.2   5.75 308 279 240 183 132 96.6 73.2 57.1 37.4 26.4 19.6 15.1 12.0 9.74 8.08 6.81 5.81 5.02
3.6   6.44 344 312 268 203 146 107 81.3 63.4 41.6 29.3 21.7 16.7 13.3 10.8 8.97 7.56 6.45 5.58
4.0   7.11 381 344 294 222 160 117 88.5 69.1 45.2 31.9 23.6 18.2 14.5 11.8 9.76 8.22 7.02 6.07
5.0   8.77 470 425 361 271 194 142 107 83.5 54.7 38.5 28.5 22.0 17.5 14.2 11.8 9.93 8.48 7.33
6.3   10.8 580 521 440 327 232 170 128 99.8 65.3 46.0 34.1 26.3 20.9 17.0 14.1 11.9 10.1 8.75
8.0   13.4 718 642 535 391 277 201 152 118 77.2 54.3 40.3 31.0 24.6 20.0 16.6 14.0 12.0 10.3
88.9 3.2   6.76 362 338 306 256 198 150 115 90.4 59.7 42.2 31.4 24.2 19.3 15.7 13.0 11.0 9.38 8.11
3.6   7.57 405 378 342 286 220 167 128 101 66.5 47.0 34.9 27.0 21.4 17.5 14.5 12.2 10.4 9.02
4.0   8.38 449 419 378 315 242 183 140 110 72.8 51.4 38.2 29.5 23.5 19.1 15.9 13.4 11.4 9.87
5.0   10.3 554 516 465 385 294 222 170 134 88.1 62.3 46.3 35.7 28.4 23.1 19.2 16.2 13.8 11.9
6.3   12.8 685 636 571 469 356 268 205 161 106 74.9 55.7 43.0 34.1 27.8 23.1 19.4 16.6 14.4
8.0   16.0 853 789 704 572 431 322 246 193 127 89.6 66.6 51.4 40.8 33.2 27.6 23.2 19.9 17.2
114.3 3.6   9.83 525 505 478 438 383 317 256 206 140 99.8 74.6 57.8 46.1 37.6 31.2 26.4 22.5 19.5
4.0   10.9 584 561 531 486 424 350 282 228 154 110 82.2 63.7 50.7 41.4 34.4 29.0 24.8 21.5
5.0   13.5 722 694 655 600 521 429 345 278 188 134 100 77.6 61.9 50.4 41.9 35.4 30.3 26.2
6.3   16.8 899 863 813 742 641 525 421 338 228 163 122 94.2 75.1 61.2 50.8 42.9 36.7 31.7
8.0   21.0 1120 1080 1010 920 790 643 514 413 278 198 148 115 91.3 74.4 61.8 52.2 44.6 38.6
139.7 3.6   12.1 647 633 609 578 536 480 414 349 246 179 135 105 84.1 68.7 57.2 48.4 41.4 35.8
4.0   13.4 718 703 676 641 594 532 459 387 273 198 149 116 93.0 76.0 63.3 53.5 45.8 39.6
5.0   16.6 890 871 837 793 735 656 565 475 335 243 183 142 114 93.1 77.5 65.5 56.1 48.5
6.3   20.7 1110 1080 1040 985 910 810 695 583 409 297 224 174 139 114 94.6 79.9 68.4 59.2
8.0   26.0 1390 1360 1300 1230 1130 1000 858 718 502 363 274 213 170 139 116 97.7 83.7 72.4
168.3 5.0   20.1 1080 1070 1040 1000 954 894 819 730 551 412 315 247 199 163 136 115 98.6 85.4
6.3   25.2 1350 1330 1290 1250 1190 1110 1020 903 679 507 388 304 244 200 167 141 121 105
8.0   31.6 1690 1670 1620 1560 1490 1390 1270 1120 840 626 477 374 300 246 205 174 149 129
10.0   39.0 2090 2060 2000 1920 1830 1700 1550 1370 1020 758 578 453 363 298 248 210 180 156
193.7 5.0   23.3 1240 1240 1210 1180 1140 1090 1020 949 769 598 466 369 298 246 205 174 150 130
6.3   29.1 1560 1550 1520 1470 1420 1360 1280 1180 957 743 578 458 370 304 255 216 185 161
8.0   36.6 1960 1950 1910 1850 1790 1710 1610 1480 1190 922 717 567 458 377 315 267 229 199
10.0   45.3 2420 2410 2350 2280 2200 2100 1970 1820 1450 1120 869 687 555 456 381 323 277 241
219.1 5.0   26.4 1410 1410 1380 1350 1320 1270 1220 1160 998 814 651 523 426 352 295 251 216 188
6.3   33.1 1770 1770 1740 1700 1650 1600 1530 1450 1240 1010 809 649 529 437 367 312 268 233
8.0   41.6 2230 2230 2190 2140 2080 2010 1920 1820 1560 1260 1010 808 657 543 456 387 333 289
10.0   51.6 2760 2760 2700 2640 2570 2480 2370 2240 1910 1540 1230 983 800 661 554 471 404 351
12.5   63.7 3410 3410 3340 3260 3160 3050 2920 2750 2330 1880 1490 1190 968 799 670 569 489 425
14.2   71.8 3840 3840 3760 3660 3560 3430 3280 3090 2610 2090 1660 1320 1080 887 744 631 543 471
16.0   80.1 4280 4280 4190 4090 3970 3820 3650 3430 2880 2310 1820 1460 1180 975 817 694 596 518
244.5 5.0   29.5 1580 1580 1560 1530 1500 1460 1410 1360 1220 1040 861 704 580 482 406 347 299 260
6.3   37.0 1980 1980 1960 1920 1870 1820 1770 1700 1520 1300 1070 874 719 598 504 429 370 322
8.0   46.7 2500 2500 2460 2420 2360 2300 2220 2140 1910 1620 1340 1090 897 746 628 536 461 401
10.0   57.8 3100 3100 3060 2990 2920 2850 2750 2640 2360 2000 1640 1340 1100 912 768 654 563 490
12.5   71.5 3830 3830 3780 3700 3610 3510 3400 3260 2890 2440 2000 1620 1330 1110 930 792 682 593
14.2   80.6 4330 4330 4270 4180 4080 3970 3830 3670 3250 2740 2240 1820 1490 1240 1040 886 763 663
16.0   90.2 4830 4830 4760 4660 4550 4420 4270 4090 3610 3030 2470 2000 1640 1360 1150 976 840 730
273.0 5.0 * 33.0 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
6.3   41.4 2220 2220 2200 2170 2130 2080 2030 1970 1820 1620 1390 1160 973 817 692 592 512 446
8.0   52.3 2800 2800 2780 2730 2680 2620 2560 2480 2290 2030 1740 1460 1210 1020 863 738 638 556
10.0   64.9 3470 3470 3450 3390 3320 3250 3170 3070 2830 2510 2140 1790 1490 1250 1060 905 782 681
12.5   80.3 4280 4280 4250 4180 4100 4010 3900 3780 3480 3070 2610 2180 1810 1520 1280 1100 948 826
14.2   90.6 4830 4830 4800 4710 4620 4510 4400 4260 3900 3440 2920 2430 2020 1690 1430 1220 1060 920
16.0   101 5420 5420 5380 5280 5180 5060 4920 4770 4360 3840 3250 2700 2240 1880 1590 1360 1170 1020
323.9 5.0 * 39.3 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
6.3 * 49.3 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
8.0   62.3 3340 3340 3340 3300 3250 3190 3140 3070 2920 2720 2470 2180 1890 1620 1400 1210 1050 920
10.0   77.4 4140 4140 4140 4090 4030 3960 3890 3810 3620 3360 3040 2680 2320 1990 1710 1480 1280 1120
12.5   96.0 5120 5120 5120 5060 4980 4900 4810 4710 4460 4140 3740 3280 2830 2430 2080 1800 1560 1370
14.2   108 5800 5800 5800 5720 5630 5540 5440 5320 5050 4690 4230 3710 3200 2740 2360 2030 1770 1550
16.0   121 6510 6510 6510 6420 6320 6220 6100 5970 5660 5240 4720 4130 3550 3040 2610 2250 1950 1710
355.6 6.3 * 54.3 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
8.0   68.6 3670 3670 3670 3640 3600 3550 3490 3430 3300 3120 2900 2630 2340 2050 1780 1550 1360 1200
10.0   85.2 4580 4580 4580 4540 4480 4420 4350 4280 4100 3880 3600 3260 2890 2520 2200 1910 1670 1470
12.5   106 5670 5670 5670 5630 5550 5470 5380 5290 5070 4790 4430 4000 3540 3090 2680 2340 2040 1800
14.2   120 6380 6380 6380 6330 6250 6160 6060 5960 5710 5390 4990 4510 3990 3480 3020 2630 2300 2020
16.0   134 7180 7180 7180 7120 7030 6920 6810 6690 6410 6050 5590 5030 4440 3870 3360 2920 2550 2240
406.4 10.0   97.8 5250 5250 5250 5250 5190 5130 5060 4990 4840 4650 4420 4140 3800 3430 3060 2720 2400 2130
12.5   121 6510 6510 6510 6500 6430 6350 6270 6190 5990 5760 5470 5110 4680 4220 3760 3330 2950 2620
14.2   137 7350 7350 7350 7340 7260 7170 7080 6980 6760 6500 6170 5770 5290 4770 4250 3760 3330 2950
16.0   154 8230 8230 8230 8220 8130 8030 7920 7820 7570 7270 6890 6430 5880 5300 4710 4170 3690 3270
457.0 10.0   110 5880 5880 5880 5880 5850 5790 5730 5660 5520 5360 5160 4930 4640 4310 3950 3580 3220 2900
12.5   137 7350 7350 7350 7350 7310 7230 7150 7070 6900 6690 6440 6140 5780 5360 4900 4440 4000 3580
14.2   155 8320 8320 8320 8320 8270 8180 8100 8000 7800 7570 7290 6950 6540 6070 5550 5020 4520 4060
16.0   174 9320 9320 9320 9320 9270 9170 9070 8970 8740 8470 8160 7770 7300 6760 6180 5590 5020 4500
508.0 10.0 * 123 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
12.5   153 8190 8190 8190 8190 8180 8110 8040 7960 7790 7600 7380 7120 6820 6450 6040 5590 5120 4660
14.2   173 9240 9240 9240 9240 9230 9150 9060 8980 8790 8570 8330 8040 7690 7280 6810 6300 5780 5260
16.0   194 10400 10400 10400 10400 10400 10300 10200 10100 9860 9620 9340 9000 8610 8140 7610 7040 6440 5860


Celsius® is a trademark of Tata Steel. For further information visit our product catalogue.
For values of the compression cross-sectional resistance, Nc,Rd, see values of Npl,Rd in tables for axial force and bending
✔ Items which are readily available in the UK market. Unticked items are subject to minimum order quantity and longer lead times.        
∗ The section may be Class 4 under axial compression
$ Indicates that the section is Class 4 and no compression resistance is calculated

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Bending resistance<a id="tab3" name="tab3"></a>
External

EN-Construction-Product-Blue Book-Celsius 420 CHS-Bending resistance

Celsius® 420 CHS

 Eurocode 3 - UK National Annex (BS EN 1993-1-1: 2005, BS EN 10210-2: 2006)

Dimensions Links to other design tables
CHS tube nomenclature
 Celsius 355 SHS Celsius 420 SHS Celsius 460 SHS
Celsius 355 RHS Celsius 420 RHS Celsius 460 RHS
Celsius 355 CHS Celsius 420 CHS Celsius 460 CHS
Celsius 355 EHS    

Design moment resistance and design shear resistance Celsius® 420 CHS

Section designation Mass
per
metre		 Section
classification		 Moment
resistance		 Second
moment
of area		 Shear
resistance
Outside
diameter		 Thickness
d t Mc,Rd Iy Vc,Rd
mm mm kg/m kNm cm4 kN
42.4 3.2   3.09 1 2.07 7.62 60.8
3.6   3.44 1 2.28 8.33 67.8
4.0   3.79 1 2.49 8.99 74.6
5.0   4.61 1 2.96 10.5 90.6
48.3 3.2   3.56 1 2.74 11.6 69.9
3.6   3.97 1 3.03 12.7 78.1
4.0   4.37 1 3.31 13.8 86.0
5.0   5.34 1 3.96 16.2 105
6.3   6.53 1 4.70 18.7 128
60.3 3.2   4.51 1 4.37 23.5 88.6
3.6   5.03 1 4.87 25.9 99.0
4.0   5.55 1 5.33 28.2 109
5.0   6.82 1 6.43 33.5 134
6.3   8.39 1 7.77 39.5 165
8.0   10.3 1 9.28 46.0 202
76.1 3.2   5.75 1 7.14 48.8 113
3.6   6.44 1 7.94 54.0 127
4.0   7.11 1 8.74 59.1 140
5.0   8.77 1 10.6 70.9 173
6.3   10.8 1 12.9 84.8 213
8.0   13.4 1 15.7 101 264
88.9 3.2   6.76 1 9.87 79.2 133
3.6   7.57 1 11.0 87.9 149
4.0   8.38 1 12.1 96.3 165
5.0   10.3 1 14.8 116 204
6.3   12.8 1 18.1 140 252
8.0   16.0 1 22.0 168 313
114.3 3.6   9.83 2 18.5 192 193
4.0   10.9 2 20.5 211 215
5.0   13.5 1 25.1 257 266
6.3   16.8 1 30.9 313 330
8.0   21.0 1 38.1 379 412
139.7 3.6   12.1 2 28.0 357 238
4.0   13.4 2 31.0 393 264
5.0   16.6 1 38.1 481 327
6.3   20.7 1 47.0 589 408
8.0   26.0 1 58.4 720 511
168.3 5.0   20.1 2 55.9 856 397
6.3   25.2 1 69.3 1050 496
8.0   31.6 1 86.5 1300 622
10.0   39.0 1 105 1560 767
193.7 5.0   23.3 2 74.8 1320 457
6.3   29.1 2 92.8 1630 573
8.0   36.6 1 116 2020 721
10.0   45.3 1 142 2440 891
219.1 5.0   26.4 3 73.9 1930 519
6.3   33.1 2 120 2390 650
8.0   41.6 1 150 2960 820
10.0   51.6 1 184 3600 1010
12.5   63.7 1 224 4340 1250
14.2   71.8 1 251 4820 1410
16.0   80.1 1 278 5300 1580
244.5 5.0   29.5 3 92.8 2700 580
6.3   37.0 2 150 3350 727
8.0   46.7 2 188 4160 917
10.0   57.8 1 231 5070 1140
12.5   71.5 1 283 6150 1410
14.2   80.6 1 317 6840 1590
16.0   90.2 1 352 7530 1780
273.0 5.0   33.0 4 $ 3780 650
6.3   41.4 3 144 4700 815
8.0   52.3 2 236 5850 1030
10.0   64.9 1 291 7150 1280
12.5   80.3 1 357 8700 1580
14.2   90.6 1 400 9700 1780
16.0   101 1 444 10700 1990
323.9 5.0   39.3 4 $ 6370 773
6.3   49.3 4 $ 7930 971
8.0   62.3 3 257 9910 1230
10.0   77.4 2 414 12200 1520
12.5   96.0 1 509 14800 1880
14.2   108 1 572 16600 2130
16.0   121 1 638 18400 2390
355.6 6.3   54.3 4 $ 10500 1070
8.0   68.6 3 312 13200 1350
10.0   85.2 2 502 16200 1680
12.5   106 2 618 19900 2080
14.2   120 1 696 22200 2350
16.0   134 1 776 24700 2640
406.4 10.0   97.8 3 506 24500 1930
12.5   121 2 815 30000 2390
14.2   137 2 918 33700 2700
16.0   154 1 1020 37400 3030
457.0 10.0   110 3 645 35100 2160
12.5   137 2 1040 43100 2700
14.2   155 2 1170 48500 3060
16.0   174 2 1310 54000 3430
508.0 10.0   123 4 $ 48500 2410
12.5   153 3 988 59800 3010
14.2   173 2 1450 67200 3400
16.0   194 2 1630 74900 3810

Celsius® is a trademark of Tata Steel. For further information visit our product catalogue.
$ Moment resistance for a Class 4 section is not calculated.
✔ Items which are readily available in the UK market. Unticked items are subject to minimum order quantity and longer lead times.

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Axial force and bending<a id="tab5" name="tab5"></a>
External

EN-Construction-Product-Blue Book-Celsius 420 CHS-Axial force and bending

Celsius® 420 CHS

 Eurocode 3 - UK National Annex (BS EN 1993-1-1: 2005, BS EN 10210-2: 2006).

Dimensions Links to other design tables
CHS tube nomenclature
 Celsius 355 SHS Celsius 420 SHS Celsius 460 SHS
Celsius 355 RHS Celsius 420 RHS Celsius 460 RHS
Celsius 355 CHS Celsius 420 CHS Celsius 460 CHS
Celsius 355 EHS    

Axial force and bending for Celsius® 420 CHS

Cross-section resistance check
Section designation Mass
per
metre		 Axial
force
resistance		 Cross-section resistance check
Outside
diameter		 Thickness Moment resistance Mc,Rd, (kNm) and reduced moment resistance MN,Rd, (kNm) for ratios
of design axial force to design axial plastic resistance n = NEd / Npl,Rd
d t Npl,Rd
mm mm kg/m kN n 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
42.4 3.2   3.09 165 Mc,Rd 2.07 2.07 2.07 2.07 2.07 2.07 2.07 2.07 2.07 2.07 2.07
        MN,Rd 2.07 2.03 1.94 1.80 1.63 1.43 1.20 0.941 0.654 0.340 0
3.6   3.44 184 Mc,Rd 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28 2.28
        MN,Rd 2.28 2.24 2.14 1.99 1.80 1.58 1.33 1.04 0.721 0.375 0
4.0   3.79 203 Mc,Rd 2.49 2.49 2.49 2.49 2.49 2.49 2.49 2.49 2.49 2.49 2.49
        MN,Rd 2.49 2.44 2.33 2.17 1.96 1.72 1.44 1.13 0.785 0.408 0
5.0   4.61 247 Mc,Rd 2.96 2.96 2.96 2.96 2.96 2.96 2.96 2.96 2.96 2.96 2.96
        MN,Rd 2.96 2.90 2.77 2.57 2.33 2.05 1.72 1.34 0.933 0.485 0
48.3 3.2   3.56 190 Mc,Rd 2.74 2.74 2.74 2.74 2.74 2.74 2.74 2.74 2.74 2.74 2.74
        MN,Rd 2.74 2.68 2.56 2.38 2.16 1.90 1.59 1.25 0.864 0.449 0
3.6   3.97 213 Mc,Rd 3.03 3.03 3.03 3.03 3.03 3.03 3.03 3.03 3.03 3.03 3.03
        MN,Rd 3.03 2.97 2.83 2.64 2.39 2.10 1.76 1.38 0.956 0.497 0
4.0   4.37 234 Mc,Rd 3.31 3.31 3.31 3.31 3.31 3.31 3.31 3.31 3.31 3.31 3.31
        MN,Rd 3.31 3.24 3.09 2.88 2.61 2.29 1.92 1.50 1.04 0.542 0
5.0   5.34 286 Mc,Rd 3.96 3.96 3.96 3.96 3.96 3.96 3.96 3.96 3.96 3.96 3.96
        MN,Rd 3.96 3.88 3.70 3.45 3.12 2.74 2.30 1.80 1.25 0.649 0
6.3   6.53 349 Mc,Rd 4.70 4.70 4.70 4.70 4.70 4.70 4.70 4.70 4.70 4.70 4.70
        MN,Rd 4.70 4.61 4.40 4.10 3.71 3.26 2.73 2.14 1.49 0.771 0
60.3 3.2   4.51 241 Mc,Rd 4.37 4.37 4.37 4.37 4.37 4.37 4.37 4.37 4.37 4.37 4.37
        MN,Rd 4.37 4.28 4.08 3.80 3.45 3.02 2.54 1.99 1.38 0.716 0
3.6   5.03 269 Mc,Rd 4.87 4.87 4.87 4.87 4.87 4.87 4.87 4.87 4.87 4.87 4.87
        MN,Rd 4.87 4.77 4.56 4.24 3.85 3.37 2.83 2.22 1.54 0.799 0
4.0   5.55 297 Mc,Rd 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33
        MN,Rd 5.33 5.23 4.99 4.65 4.21 3.69 3.10 2.43 1.68 0.875 0
5.0   6.82 365 Mc,Rd 6.43 6.43 6.43 6.43 6.43 6.43 6.43 6.43 6.43 6.43 6.43
        MN,Rd 6.43 6.30 6.01 5.60 5.07 4.45 3.73 2.92 2.03 1.05 0
6.3   8.39 449 Mc,Rd 7.77 7.77 7.77 7.77 7.77 7.77 7.77 7.77 7.77 7.77 7.77
        MN,Rd 7.77 7.61 7.27 6.77 6.13 5.38 4.51 3.53 2.45 1.27 0
8.0   10.3 550 Mc,Rd 9.28 9.28 9.28 9.28 9.28 9.28 9.28 9.28 9.28 9.28 9.28
        MN,Rd 9.28 9.10 8.68 8.08 7.33 6.43 5.39 4.22 2.93 1.52 0
76.1 3.2   5.75 308 Mc,Rd 7.14 7.14 7.14 7.14 7.14 7.14 7.14 7.14 7.14 7.14 7.14
        MN,Rd 7.14 7.00 6.68 6.22 5.64 4.94 4.14 3.25 2.25 1.17 0
3.6   6.44 344 Mc,Rd 7.94 7.94 7.94 7.94 7.94 7.94 7.94 7.94 7.94 7.94 7.94
        MN,Rd 7.94 7.78 7.42 6.91 6.27 5.49 4.61 3.61 2.51 1.30 0
4.0   7.11 381 Mc,Rd 8.74 8.74 8.74 8.74 8.74 8.74 8.74 8.74 8.74 8.74 8.74
        MN,Rd 8.74 8.56 8.17 7.61 6.90 6.05 5.07 3.97 2.76 1.43 0
5.0   8.77 470 Mc,Rd 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6 10.6
        MN,Rd 10.6 10.4 9.94 9.25 8.39 7.36 6.17 4.83 3.35 1.74 0
6.3   10.8 580 Mc,Rd 12.9 12.9 12.9 12.9 12.9 12.9 12.9 12.9 12.9 12.9 12.9
        MN,Rd 12.9 12.7 12.1 11.3 10.2 8.95 7.51 5.88 4.08 2.12 0
8.0   13.4 718 Mc,Rd 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7
        MN,Rd 15.7 15.4 14.7 13.6 12.4 10.8 9.09 7.12 4.95 2.57 0
88.9 3.2   6.76 362 Mc,Rd 9.87 9.87 9.87 9.87 9.87 9.87 9.87 9.87 9.87 9.87 9.87
        MN,Rd 9.87 9.67 9.23 8.60 7.79 6.83 5.73 4.49 3.12 1.62 0
3.6   7.57 405 Mc,Rd 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0
        MN,Rd 11.0 10.8 10.3 9.58 8.69 7.62 6.39 5.00 3.47 1.80 0
4.0   8.38 449 Mc,Rd 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1
        MN,Rd 12.1 11.9 11.4 10.6 9.58 8.40 7.04 5.52 3.83 1.99 0
5.0   10.3 554 Mc,Rd 14.8 14.8 14.8 14.8 14.8 14.8 14.8 14.8 14.8 14.8 14.8
        MN,Rd 14.8 14.5 13.8 12.9 11.7 10.2 8.58 6.72 4.67 2.42 0
6.3   12.8 685 Mc,Rd 18.1 18.1 18.1 18.1 18.1 18.1 18.1 18.1 18.1 18.1 18.1
        MN,Rd 18.1 17.7 16.9 15.8 14.3 12.5 10.5 8.23 5.71 2.97 0
8.0   16.0 853 Mc,Rd 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0
        MN,Rd 22.0 21.6 20.6 19.2 17.4 15.3 12.8 10.0 6.96 3.62 0
114.3 3.6   9.83 525 Mc,Rd 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5 18.5
        MN,Rd 18.5 18.2 17.3 16.1 14.6 12.8 10.7 8.42 5.85 3.04 0
4.0   10.9 584 Mc,Rd 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5 20.5
        MN,Rd 20.5 20.0 19.1 17.8 16.1 14.2 11.9 9.30 6.46 3.35 0
5.0   13.5 722 Mc,Rd 25.1 25.1 25.1 25.1 25.1 25.1 25.1 25.1 25.1 25.1 25.1
        MN,Rd 25.1 24.6 23.5 21.9 19.8 17.4 14.6 11.4 7.93 4.12 0
6.3   16.8 899 Mc,Rd 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9
        MN,Rd 30.9 30.3 28.9 26.9 24.4 21.4 17.9 14.1 9.76 5.07 0
8.0   21.0 1120 Mc,Rd 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1
        MN,Rd 38.1 37.3 35.6 33.1 30.0 26.3 22.1 17.3 12.0 6.24 0
139.7 3.6   12.1 647 Mc,Rd 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0
        MN,Rd 28.0 27.5 26.2 24.4 22.1 19.4 16.3 12.7 8.84 4.59 0
4.0   13.4 718 Mc,Rd 31.0 31.0 31.0 31.0 31.0 31.0 31.0 31.0 31.0 31.0 31.0
        MN,Rd 31.0 30.3 28.9 27.0 24.4 21.4 18.0 14.1 9.77 5.08 0
5.0   16.6 890 Mc,Rd 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1 38.1
        MN,Rd 38.1 37.4 35.7 33.2 30.1 26.4 22.1 17.3 12.0 6.25 0
6.3   20.7 1110 Mc,Rd 47.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0
        MN,Rd 47.0 46.1 44.0 41.0 37.1 32.6 27.3 21.4 14.9 7.71 0
8.0   26.0 1390 Mc,Rd 58.4 58.4 58.4 58.4 58.4 58.4 58.4 58.4 58.4 58.4 58.4
        MN,Rd 58.4 57.2 54.6 50.8 46.1 40.4 33.9 26.5 18.4 9.57 0
168.3 5.0   20.1 1080 Mc,Rd 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9 55.9
        MN,Rd 55.9 54.7 52.2 48.6 44.1 38.7 32.4 25.4 17.6 9.16 0
6.3   25.2 1350 Mc,Rd 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3 69.3
        MN,Rd 69.3 67.9 64.8 60.3 54.7 48.0 40.2 31.5 21.9 11.4 0
8.0   31.6 1690 Mc,Rd 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.5 86.5
        MN,Rd 86.5 84.8 80.9 75.3 68.3 59.9 50.2 39.3 27.3 14.2 0
10.0   39.0 2090 Mc,Rd 105 105 105 105 105 105 105 105 105 105 105
        MN,Rd 105 103 98.6 91.8 83.2 73.0 61.2 47.9 33.3 17.3 0
193.7 5.0   23.3 1240 Mc,Rd 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8 74.8
        MN,Rd 74.8 73.3 69.9 65.1 59.0 51.7 43.4 34.0 23.6 12.3 0
6.3   29.1 1560 Mc,Rd 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8
        MN,Rd 92.8 91.0 86.8 80.8 73.3 64.3 53.9 42.2 29.3 15.2 0
8.0   36.6 1960 Mc,Rd 116 116 116 116 116 116 116 116 116 116 116
        MN,Rd 116 114 108 101 91.5 80.2 67.3 52.7 36.6 19.0 0
10.0   45.3 2420 Mc,Rd 142 142 142 142 142 142 142 142 142 142 142
        MN,Rd 142 139 133 124 112 98.3 82.4 64.5 44.8 23.3 0
219.1 5.0   26.4 1410 Mc,Rd 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9
        MN,Rd - - - - - - - - - - -
6.3   33.1 1770 Mc,Rd 120 120 120 120 120 120 120 120 120 120 120
        MN,Rd 120 117 112 104 94.5 82.9 69.5 54.4 37.8 19.6 0
8.0   41.6 2230 Mc,Rd 150 150 150 150 150 150 150 150 150 150 150
        MN,Rd 150 147 140 131 118 104 87.0 68.2 47.3 24.6 0
10.0   51.6 2760 Mc,Rd 184 184 184 184 184 184 184 184 184 184 184
        MN,Rd 184 180 172 160 145 127 107 83.6 58.1 30.2 0
12.5   63.7 3410 Mc,Rd 224 224 224 224 224 224 224 224 224 224 224
        MN,Rd 224 220 210 195 177 155 130 102 70.8 36.8 0
14.2   71.8 3840 Mc,Rd 251 251 251 251 251 251 251 251 251 251 251
        MN,Rd 251 246 234 218 198 174 146 114 79.2 41.1 0
16.0   80.1 4280 Mc,Rd 278 278 278 278 278 278 278 278 278 278 278
        MN,Rd 278 272 260 242 219 192 161 126 87.6 45.5 0
244.5 5.0   29.5 1580 Mc,Rd 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8 92.8
        MN,Rd - - - - - - - - - - -
6.3   37.0 1980 Mc,Rd 150 150 150 150 150 150 150 150 150 150 150
        MN,Rd 150 147 141 131 119 104 87.3 68.4 47.5 24.7 0
8.0   46.7 2500 Mc,Rd 188 188 188 188 188 188 188 188 188 188 188
        MN,Rd 188 184 176 164 149 130 109 85.5 59.4 30.9 0
10.0   57.8 3100 Mc,Rd 231 231 231 231 231 231 231 231 231 231 231
        MN,Rd 231 226 216 201 182 160 134 105 72.9 37.9 0
12.5   71.5 3830 Mc,Rd 283 283 283 283 283 283 283 283 283 283 283
        MN,Rd 283 277 264 246 223 196 164 129 89.2 46.4 0
14.2   80.6 4330 Mc,Rd 317 317 317 317 317 317 317 317 317 317 317
        MN,Rd 317 310 296 276 250 219 184 144 100 51.9 0
16.0   90.2 4830 Mc,Rd 352 352 352 352 352 352 352 352 352 352 352
        MN,Rd 352 345 329 306 277 243 204 160 111 57.6 0
273.0 5.0 * 33.0 1770 Mc,Rd $ $ $ $ $ $ $ $ $ $ $
        MN,Rd - - - - - - - - - - -
6.3   41.4 2220 Mc,Rd 144 144 144 144 144 144 144 144 144 144 144
        MN,Rd - - - - - - - - - - -
8.0   52.3 2800 Mc,Rd 236 236 236 236 236 236 236 236 236 236 236
        MN,Rd 236 231 221 206 186 163 137 107 74.5 38.7 0
10.0   64.9 3470 Mc,Rd 291 291 291 291 291 291 291 291 291 291 291
        MN,Rd 291 285 272 253 229 201 169 132 91.8 47.7 0
12.5   80.3 4280 Mc,Rd 357 357 357 357 357 357 357 357 357 357 357
        MN,Rd 357 349 333 311 281 247 207 162 113 58.5 0
14.2   90.6 4830 Mc,Rd 400 400 400 400 400 400 400 400 400 400 400
        MN,Rd 400 392 374 348 316 277 232 182 126 65.6 0
16.0   101 5420 Mc,Rd 444 444 444 444 444 444 444 444 444 444 444
        MN,Rd 444 435 416 387 351 308 258 202 140 72.9 0
323.9 5.0 * 39.3 2100 Mc,Rd $ $ $ $ $ $ $ $ $ $ $
        MN,Rd - - - - - - - - - - -
6.3 * 49.3 2640 Mc,Rd $ $ $ $ $ $ $ $ $ $ $
        MN,Rd - - - - - - - - - - -
8.0   62.3 3340 Mc,Rd 257 257 257 257 257 257 257 257 257 257 257
        MN,Rd - - - - - - - - - - -
10.0   77.4 4140 Mc,Rd 414 414 414 414 414 414 414 414 414 414 414
        MN,Rd 414 406 387 361 327 287 240 188 131 67.9 0
12.5   96.0 5120 Mc,Rd 509 509 509 509 509 509 509 509 509 509 509
        MN,Rd 509 499 476 444 402 353 296 232 161 83.5 0
14.2   108 5800 Mc,Rd 572 572 572 572 572 572 572 572 572 572 572
        MN,Rd 572 561 535 499 452 396 332 260 181 93.9 0
16.0   121 6510 Mc,Rd 638 638 638 638 638 638 638 638 638 638 638
        MN,Rd 638 625 596 555 503 441 370 290 201 105 0
355.6 6.3 * 54.3 2900 Mc,Rd $ $ $ $ $ $ $ $ $ $ $
        MN,Rd - - - - - - - - - - -
8.0   68.6 3670 Mc,Rd 312 312 312 312 312 312 312 312 312 312 312
        MN,Rd - - - - - - - - - - -
10.0   85.2 4580 Mc,Rd 502 502 502 502 502 502 502 502 502 502 502
        MN,Rd 502 492 469 437 396 347 291 228 158 82.3 0
12.5   106 5670 Mc,Rd 618 618 618 618 618 618 618 618 618 618 618
        MN,Rd 618 606 578 538 488 428 359 281 195 101 0
14.2   120 6380 Mc,Rd 696 696 696 696 696 696 696 696 696 696 696
        MN,Rd 696 682 650 606 549 481 404 316 220 114 0
16.0   134 7180 Mc,Rd 776 776 776 776 776 776 776 776 776 776 776
        MN,Rd 776 760 725 676 612 537 450 353 245 127 0
406.4 10.0   97.8 5250 Mc,Rd 506 506 506 506 506 506 506 506 506 506 506
        MN,Rd - - - - - - - - - - -
12.5   121 6510 Mc,Rd 815 815 815 815 815 815 815 815 815 815 815
        MN,Rd 815 799 762 710 643 564 473 370 257 134 0
14.2   137 7350 Mc,Rd 918 918 918 918 918 918 918 918 918 918 918
        MN,Rd 918 899 858 799 724 635 533 417 290 150 0
16.0   154 8230 Mc,Rd 1020 1020 1020 1020 1020 1020 1020 1020 1020 1020 1020
        MN,Rd 1020 1000 958 892 809 709 595 466 324 168 0
457.0 10.0   110 5880 Mc,Rd 645 645 645 645 645 645 645 645 645 645 645
        MN,Rd - - - - - - - - - - -
12.5   137 7350 Mc,Rd 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040
        MN,Rd 1040 1020 970 903 819 718 602 472 327 170 0
14.2   155 8320 Mc,Rd 1170 1170 1170 1170 1170 1170 1170 1170 1170 1170 1170
        MN,Rd 1170 1150 1090 1020 923 810 679 532 369 192 0
16.0   174 9320 Mc,Rd 1310 1310 1310 1310 1310 1310 1310 1310 1310 1310 1310
        MN,Rd 1310 1280 1220 1140 1030 905 759 594 413 214 0
508.0 10.0 * 123 6550 Mc,Rd $ $ $ $ $ $ $ $ $ $ $
        MN,Rd - - - - - - - - - - -
12.5   153 8190 Mc,Rd 988 988 988 988 988 988 988 988 988 988 988
        MN,Rd - - - - - - - - - - -
14.2   173 9240 Mc,Rd 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450
        MN,Rd 1450 1420 1360 1270 1150 1010 844 661 459 239 0
16.0   194 10400 Mc,Rd 1630 1630 1630 1630 1630 1630 1630 1630 1630 1630 1630
        MN,Rd 1630 1600 1520 1420 1280 1130 944 740 514 267 0

Celsius® is a trademark of Tata Steel. For further information visit our product catalogue.
✔ Items which are readily available in the UK market. Unticked items are subject to minimum order quantity and longer lead times.
* The section can is a Class 4 section.
– Not applicable for Class 3 and Class 4 sections.
$ Mc,Rd is not calculated for Class 4 sections.
n = NEd/ Npl,Rd
NEd is the design value of the axial force. 
Npl,Rd is the axial force resistance. 

 

Axial force and bending for Celsius® 420 CHS

Member buckling check
Section designation Mass
per
metre		 Characteristic
bending
resistance		 Member buckling check
Outside
diameter		 Thickness Compression resistance Nb,Rd (kN), for varying buckling lengths L (m)
d t fy Wel
mm mm kg/m kNm 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0
42.4 3.2   3.09 1.51 107 59.2 35.3 23.2 16.4 12.2 9.37 6.06 4.24 3.13 2.40 1.90 1.55 1.28 1.08 0.919 0.793
3.6   3.44 1.65 119 65.1 38.8 25.5 18.0 13.4 10.3 6.66 4.66 3.44 2.64 2.09 1.70 1.41 1.18 1.01 0.871
4.0   3.79 1.78 128 69.8 41.5 27.3 19.2 14.3 11.0 7.12 4.98 3.67 2.82 2.24 1.82 1.50 1.26 1.08 0.931
5.0   4.61 2.07 152 81.6 48.4 31.8 22.4 16.6 12.8 8.28 5.79 4.27 3.28 2.60 2.11 1.75 1.47 1.25 1.08
48.3 3.2   3.56 2.02 141 85.9 52.5 34.8 24.6 18.3 14.2 9.18 6.42 4.75 3.65 2.89 2.35 1.94 1.64 1.4 1.21
3.6   3.97 2.21 157 95.0 58.0 38.4 27.2 20.2 15.6 10.1 7.09 5.24 4.02 3.19 2.59 2.15 1.81 1.54 1.33
4.0   4.37 2.39 171 102 62.4 41.3 29.2 21.7 16.8 10.9 7.61 5.62 4.32 3.42 2.78 2.30 1.94 1.65 1.43
5.0   5.34 2.81 205 121 73.5 48.6 34.4 25.6 19.7 12.8 8.95 6.61 5.08 4.02 3.27 2.71 2.28 1.94 1.68
6.3   6.53 3.26 245 142 85.6 56.5 40.0 29.7 22.9 14.8 10.4 7.67 5.89 4.67 3.79 3.14 2.64 2.25 1.95
60.3 3.2   4.51 3.27 204 151 99.6 67.7 48.5 36.3 28.1 18.3 12.8 9.50 7.31 5.80 4.71 3.91 3.29 2.81 2.42
3.6   5.03 3.60 227 167 110 74.9 53.6 40.1 31.1 20.2 14.2 10.5 8.09 6.41 5.21 4.32 3.64 3.11 2.68
4.0   5.55 3.92 250 184 121 81.9 58.6 43.8 34.0 22.1 15.5 11.5 8.83 7.01 5.69 4.72 3.97 3.39 2.93
5.0   6.82 4.66 305 220 143 97.1 69.4 51.9 40.2 26.1 18.3 13.6 10.4 8.28 6.72 5.57 4.69 4 3.46
6.3   8.39 5.50 372 264 171 115 82.2 61.4 47.6 30.9 21.7 16.0 12.3 9.78 7.95 6.59 5.55 4.73 4.09
8.0   10.3 6.43 450 312 200 134 95.7 71.5 55.4 36.0 25.2 18.6 14.3 11.4 9.24 7.65 6.44 5.5 4.75
76.1 3.2   5.75 5.38 279 240 183 132 96.6 73.2 57.1 37.4 26.4 19.6 15.1 12.0 9.74 8.08 6.81 5.81 5.02
3.6   6.44 5.96 312 268 203 146 107 81.3 63.4 41.6 29.3 21.7 16.7 13.3 10.8 8.97 7.56 6.45 5.58
4.0   7.11 6.51 344 294 222 160 117 88.5 69.1 45.2 31.9 23.6 18.2 14.5 11.8 9.76 8.22 7.02 6.07
5.0   8.77 7.81 425 361 271 194 142 107 83.5 54.7 38.5 28.5 22.0 17.5 14.2 11.8 9.93 8.48 7.33
6.3   10.8 9.37 521 440 327 232 170 128 99.8 65.3 46.0 34.1 26.3 20.9 17.0 14.1 11.9 10.1 8.75
8.0   13.4 11.1 642 535 391 277 201 152 118 77.2 54.3 40.3 31.0 24.6 20.0 16.6 14.0 12 10.3
88.9 3.2   6.76 7.48 338 306 256 198 150 115 90.4 59.7 42.2 31.4 24.2 19.3 15.7 13.0 11.0 9.38 8.11
3.6   7.57 8.32 378 342 286 220 167 128 101 66.5 47.0 34.9 27.0 21.4 17.5 14.5 12.2 10.4 9.02
4.0   8.38 9.11 419 378 315 242 183 140 110 72.8 51.4 38.2 29.5 23.5 19.1 15.9 13.4 11.4 9.87
5.0   10.3 11.0 516 465 385 294 222 170 134 88.1 62.3 46.3 35.7 28.4 23.1 19.2 16.2 13.8 11.9
6.3   12.8 13.2 636 571 469 356 268 205 161 106 74.9 55.7 43.0 34.1 27.8 23.1 19.4 16.6 14.4
8.0   16.0 15.9 789 704 572 431 322 246 193 127 89.6 66.6 51.4 40.8 33.2 27.6 23.2 19.9 17.2
114.3 3.6   9.83 14.1 505 478 438 383 317 256 206 140 99.8 74.6 57.8 46.1 37.6 31.2 26.4 22.5 19.5
4.0   10.9 15.5 561 531 486 424 350 282 228 154 110 82.2 63.7 50.7 41.4 34.4 29.0 24.8 21.5
5.0   13.5 18.9 694 655 600 521 429 345 278 188 134 100 77.6 61.9 50.4 41.9 35.4 30.3 26.2
6.3   16.8 23.0 863 813 742 641 525 421 338 228 163 122 94.2 75.1 61.2 50.8 42.9 36.7 31.7
8.0   21.0 27.9 1080 1010 920 790 643 514 413 278 198 148 115 91.3 74.4 61.8 52.2 44.6 38.6
139.7 3.6   12.1 21.5 633 609 578 536 480 414 349 246 179 135 105 84.1 68.7 57.2 48.4 41.4 35.8
4.0   13.4 23.6 703 676 641 594 532 459 387 273 198 149 116 93.0 76.0 63.3 53.5 45.8 39.6
5.0   16.6 28.9 871 837 793 735 656 565 475 335 243 183 142 114 93.1 77.5 65.5 56.1 48.5
6.3   20.7 35.4 1080 1040 985 910 810 695 583 409 297 224 174 139 114 94.6 79.9 68.4 59.2
8.0   26.0 43.3 1360 1300 1230 1130 1000 858 718 502 363 274 213 170 139 116 97.7 83.7 72.4
168.3 5.0   20.1 42.8 1070 1040 1000 954 894 819 730 551 412 315 247 199 163 136 115 98.6 85.4
6.3   25.2 52.5 1330 1290 1250 1190 1110 1020 903 679 507 388 304 244 200 167 141 121 105
8.0   31.6 64.7 1670 1620 1560 1490 1390 1270 1120 840 626 477 374 300 246 205 174 149 129
10.0   39.0 78.1 2060 2000 1920 1830 1700 1550 1370 1020 758 578 453 363 298 248 210 180 156
193.7 5.0   23.3 57.1 1240 1210 1180 1140 1090 1020 949 769 598 466 369 298 246 205 174 150 130
6.3   29.1 70.6 1550 1520 1470 1420 1360 1280 1180 957 743 578 458 370 304 255 216 185 161
8.0   36.6 87.4 1950 1910 1850 1790 1710 1610 1480 1190 922 717 567 458 377 315 267 229 199
10.0   45.3 106 2410 2350 2280 2200 2100 1970 1820 1450 1120 869 687 555 456 381 323 277 241
219.1 5.0   26.4 73.9 1410 1380 1350 1320 1270 1220 1160 998 814 651 523 426 352 295 251 216 188
6.3   33.1 91.6 1770 1740 1700 1650 1600 1530 1450 1240 1010 809 649 529 437 367 312 268 233
8.0   41.6 113 2230 2190 2140 2080 2010 1920 1820 1560 1260 1010 808 657 543 456 387 333 289
10.0   51.6 138 2760 2700 2640 2570 2480 2370 2240 1910 1540 1230 983 800 661 554 471 404 351
12.5   63.7 167 3410 3340 3260 3160 3050 2920 2750 2330 1880 1490 1190 968 799 670 569 489 425
14.2   71.8 185 3840 3760 3660 3560 3430 3280 3090 2610 2090 1660 1320 1080 887 744 631 543 471
16.0   80.1 203 4280 4190 4090 3970 3820 3650 3430 2880 2310 1820 1460 1180 975 817 694 596 518
244.5 5.0   29.5 92.8 1580 1560 1530 1500 1460 1410 1360 1220 1040 861 704 580 482 406 347 299 260
6.3   37.0 115 1980 1960 1920 1870 1820 1770 1700 1520 1300 1070 874 719 598 504 429 370 322
8.0   46.7 143 2500 2460 2420 2360 2300 2220 2140 1910 1620 1340 1090 897 746 628 536 461 401
10.0   57.8 174 3100 3060 2990 2920 2850 2750 2640 2360 2000 1640 1340 1100 912 768 654 563 490
12.5   71.5 211 3830 3780 3700 3610 3510 3400 3260 2890 2440 2000 1620 1330 1110 930 792 682 593
14.2   80.6 235 4330 4270 4180 4080 3970 3830 3670 3250 2740 2240 1820 1490 1240 1040 886 763 663
16.0   90.2 259 4830 4760 4660 4550 4420 4270 4090 3610 3030 2470 2000 1640 1360 1150 976 840 730
273.0 5.0 * 33.0 116 - - - - - - - - - - - - - - - - -
6.3   41.4 144 2220 2200 2170 2130 2080 2030 1970 1820 1620 1390 1160 973 817 692 592 512 446
8.0   52.3 180 2800 2780 2730 2680 2620 2560 2480 2290 2030 1740 1460 1210 1020 863 738 638 556
10.0   64.9 220 3470 3450 3390 3320 3250 3170 3070 2830 2510 2140 1790 1490 1250 1060 905 782 681
12.5   80.3 268 4280 4250 4180 4100 4010 3900 3780 3480 3070 2610 2180 1810 1520 1280 1100 948 826
14.2   90.6 298 4830 4800 4710 4620 4510 4400 4260 3900 3440 2920 2430 2020 1690 1430 1220 1060 920
16.0   101 329 5420 5380 5280 5180 5060 4920 4770 4360 3840 3250 2700 2240 1880 1590 1360 1170 1020
323.9 5.0 * 39.3 165 - - - - - - - - - - - - - - - - -
6.3 * 49.3 206 - - - - - - - - - - - - - - - - -
8.0   62.3 257 3340 3340 3300 3250 3190 3140 3070 2920 2720 2470 2180 1890 1620 1400 1210 1050 920
10.0   77.4 315 4140 4140 4090 4030 3960 3890 3810 3620 3360 3040 2680 2320 1990 1710 1480 1280 1120
12.5   96.0 385 5120 5120 5060 4980 4900 4810 4710 4460 4140 3740 3280 2830 2430 2080 1800 1560 1370
14.2   108 430 5800 5800 5720 5630 5540 5440 5320 5050 4690 4230 3710 3200 2740 2360 2030 1770 1550
16.0   121 477 6510 6510 6420 6320 6220 6100 5970 5660 5240 4720 4130 3550 3040 2610 2250 1950 1710
355.6 6.3 * 54.3 249 - - - - - - - - - - - - - - - - -
8.0   68.6 312 3670 3670 3640 3600 3550 3490 3430 3300 3120 2900 2630 2340 2050 1780 1550 1360 1200
10.0   85.2 383 4580 4580 4540 4480 4420 4350 4280 4100 3880 3600 3260 2890 2520 2200 1910 1670 1470
12.5   106 469 5670 5670 5630 5550 5470 5380 5290 5070 4790 4430 4000 3540 3090 2680 2340 2040 1800
14.2   120 525 6380 6380 6330 6250 6160 6060 5960 5710 5390 4990 4510 3990 3480 3020 2630 2300 2020
16.0   134 583 7180 7180 7120 7030 6920 6810 6690 6410 6050 5590 5030 4440 3870 3360 2920 2550 2240
406.4 10.0   97.8 506 5250 5250 5250 5190 5130 5060 4990 4840 4650 4420 4140 3800 3430 3060 2720 2400 2130
12.5   121 621 6510 6510 6500 6430 6350 6270 6190 5990 5760 5470 5110 4680 4220 3760 3330 2950 2620
14.2   137 696 7350 7350 7340 7260 7170 7080 6980 6760 6500 6170 5770 5290 4770 4250 3760 3330 2950
16.0   154 774 8230 8230 8220 8130 8030 7920 7820 7570 7270 6890 6430 5880 5300 4710 4170 3690 3270
457.0 10.0   110 645 5880 5880 5880 5850 5790 5730 5660 5520 5360 5160 4930 4640 4310 3950 3580 3220 2900
12.5   137 793 7350 7350 7350 7310 7230 7150 7070 6900 6690 6440 6140 5780 5360 4900 4440 4000 3580
14.2   155 891 8320 8320 8320 8270 8180 8100 8000 7800 7570 7290 6950 6540 6070 5550 5020 4520 4060
16.0   174 992 9320 9320 9320 9270 9170 9070 8970 8740 8470 8160 7770 7300 6760 6180 5590 5020 4500
508.0 10.0 * 123 802 - - - - - - - - - - - - - - - - -
12.5   153 988 8190 8190 8190 8180 8110 8040 7960 7790 7600 7380 7120 6820 6450 6040 5590 5120 4660
14.2   173 1110 9240 9240 9240 9230 9150 9060 8980 8790 8570 8330 8040 7690 7280 6810 6300 5780 5260
16.0   194 1240 10400 10400 10400 10400 10300 10200 10100 9860 9620 9340 9000 8610 8140 7610 7040 6440 5860

Celsius® is a trademark of Tata Steel. For further information visit our product catalogue.
✔ Items which are readily available in the UK market. Unticked items are subject to minimum order quantity and longer lead times.
* The section can become a Class 4 section. 
Nb,Rd values for Class 4 sections are not calculated. 
Mb,Rd should be taken as equal to Mc,Rd
 

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Links for further information and support:

Celsius App for structural hollow sections calculations - blue book