MESteel
Beams, channels & columns · Size & tolerance table

UB British universal beams (BS 4-1)

Standard: BS 4-1:2005 (dimensions) · EN 10034 (tolerances)

Universal beams are the British parallel-flange I-sections, designated by serial depth × flange width × mass per metre in kilograms, for example UB 457 × 191 × 67. The serial size is nominal; the actual depth differs slightly for each weight within a serial size.

Dimensions are in BS 4-1; tolerances are those of EN 10034, and the steel grade is ordered to EN 10025-2 (S275JR or S355J2 are usual). Universal beams are widely used in the GCC on projects designed to British practice.

Universal beam cross-section with height h, flange width b, web thickness tw, flange thickness tf and root radius r

UB 127 to UB 914 — dimensions and section properties

Section Dimensions Surface Strong axis y-y Weak axis z-z Torsion
Designation G kg/m h mm b mm tw mm tf mm r mm A cm² hi mm d mm AL m²/m Iy cm⁴ Wel,y cm³ Wpl,y cm³ iy cm Avz cm² Iz cm⁴ Wel,z cm³ Wpl,z cm³ iz cm It cm⁴ Iw ×10³ cm⁶
UB 127 × 76 × 13 13.0 127 76 4 7.6 7.6 16.52 111.8 96.6 0.537 473 74.6 84.2 5.353 6.427 55.7 14.67 22.58 1.837 2.796 1.98
UB 152 × 89 × 16 16.0 152.4 88.7 4.5 7.7 7.6 20.32 137 121.8 0.638 834 109.5 123.3 6.407 8.178 89.8 20.24 31.18 2.102 3.546 4.69
UB 178 × 102 × 19 19.0 177.8 101.2 4.8 7.9 7.6 24.26 162 146.8 0.738 1356 152.5 171.3 7.476 9.852 136.7 27.02 41.59 2.374 4.416 9.85
UB 203 × 102 × 23 23.1 203.2 101.8 5.4 9.3 7.6 29.40 184.6 169.4 0.79 2105 207.2 234.1 8.462 12.38 163.9 32.19 49.75 2.361 7.022 15.37
UB 203 × 133 × 25 25.1 203.2 133.2 5.7 7.8 7.6 31.97 187.6 172.4 0.915 2340 230.3 257.7 8.556 12.82 307.6 46.19 70.94 3.102 6.095 29.33
UB 203 × 133 × 30 30.0 206.8 133.9 6.4 9.6 7.6 38.21 187.6 172.4 0.923 2896 280 314.4 8.705 14.58 384.7 57.45 88.22 3.173 10.43 37.34
UB 254 × 102 × 22 22.0 254 101.6 5.7 6.8 7.6 28.02 240.4 225.2 0.89 2841 223.7 259 10.07 15.62 119.3 23.49 37.27 2.064 4.348 18.16
UB 254 × 102 × 25 25.2 257.2 101.9 6.0 8.4 7.6 32.04 240.4 225.2 0.897 3415 265.5 305.5 10.32 16.7 148.7 29.18 46.01 2.154 6.557 22.92
UB 254 × 102 × 28 28.3 260.4 102.2 6.3 10 7.6 36.08 240.4 225.2 0.904 4005 307.6 352.8 10.54 17.79 178.5 34.94 54.85 2.224 9.657 27.89
UB 254 × 146 × 31 31.1 251.4 146.1 6.0 8.6 7.6 39.68 234.2 219 1.062 4413 351.1 393.1 10.55 16.37 447.5 61.26 94.13 3.358 8.677 65.88
UB 254 × 146 × 37 37.0 256 146.4 6.3 10.9 7.6 47.17 234.2 219 1.072 5537 432.6 483.2 10.83 17.59 570.6 77.96 119.4 3.478 15.37 85.61
UB 254 × 146 × 43 43.0 259.6 147.3 7.2 12.7 7.6 54.77 234.2 219 1.081 6544 504.1 566.3 10.93 20.2 677.4 91.97 141.1 3.517 23.97 103.1
UB 305 × 102 × 25 24.8 305.1 101.6 5.8 7.0 7.6 31.60 291.1 275.9 0.992 4455 292.1 342.0 11.87 18.850 122.9 24.20 38.81 1.972 4.977 27.18
UB 305 × 102 × 28 28.2 308.7 101.8 6.0 8.8 7.6 35.88 291.1 275.9 1.000 5366 347.6 402.9 12.23 19.827 155.4 30.53 48.45 2.081 7.511 34.79
UB 305 × 102 × 33 32.8 312.7 102.4 6.6 10.8 7.6 41.83 291.1 275.9 1.009 6501 415.8 480.8 12.47 22.063 194.1 37.91 60.04 2.154 12.29 44.04
UB 305 × 127 × 37 37.0 304.1 123.3 7.1 10.7 8.9 47.14 282.7 264.9 1.072 7150 470.2 538.4 12.32 23.416 335.4 54.40 85.27 2.667 14.95 71.94
UB 305 × 127 × 42 41.9 307.2 124.3 8.0 12.1 8.9 53.40 283 265.2 1.080 8196 533.6 613.5 12.39 26.442 388.8 62.55 98.41 2.698 21.42 84.32
UB 305 × 127 × 48 48.1 311.0 125.3 9.0 14.0 8.9 61.23 283 265.2 1.090 9575 615.7 710.7 12.50 29.902 461.0 73.59 116.1 2.744 32.18 101.22
UB 305 × 165 × 40 40.3 303.4 165 6 10.2 8.9 51.32 283 265.2 1.24 8503 560.5 623.1 12.87 20.09 764.4 92.65 141.7 3.859 14.74 164.1
UB 305 × 165 × 46 46.1 306.6 165.7 6.7 11.8 8.9 58.75 283 265.2 1.247 9899 645.7 720 12.98 22.53 895.7 108.1 165.5 3.905 22.20 194.4
UB 305 × 165 × 54 54.0 310.4 166.9 7.9 13.7 8.9 68.77 283 265.2 1.257 11700 753.6 846.1 13.04 26.56 1063 127.4 195.6 3.932 34.90 233.6
UB 356 × 127 × 33 33.1 349.0 125.4 6.0 8.5 10.2 42.13 332 311.6 1.170 8249 472.7 542.9 13.99 23.057 280.2 44.69 70.29 2.579 8.972 80.97
UB 356 × 127 × 39 39.1 353.4 126.0 6.6 10.7 10.2 49.77 332 311.6 1.180 10172 575.6 658.5 14.30 25.694 357.8 56.80 89.05 2.681 15.15 104.74
UB 356 × 171 × 45 45.0 351.4 171.1 7 9.7 10.2 57.33 332 311.6 1.356 12070 686.7 774.6 14.51 26.79 811.1 94.81 146.6 3.761 16.16 236.4
UB 356 × 171 × 51 51.0 355 171.5 7.4 11.5 10.2 64.91 332 311.6 1.364 14140 796.4 896.0 14.76 28.66 968.3 112.92 174.2 3.862 24.00 285.2
UB 356 × 171 × 57 57.0 358 172.2 8.1 13 10.2 72.56 332 311.6 1.371 16040 896 1010 14.87 31.49 1108 128.71 198.8 3.908 33.59 329.2
UB 356 × 171 × 67 67.1 363.4 173.2 9.1 15.7 10.2 85.49 332 311.6 1.384 19460 1071 1211 15.09 35.74 1362 157.28 243 3.992 55.90 410.9
UB 406 × 140 × 39 39.0 398.0 141.8 6.4 8.6 10.2 49.65 380.8 360.4 1.333 12508 628.6 723.7 15.87 27.569 409.8 57.80 90.85 2.873 10.99 154.92
UB 406 × 140 × 46 46.0 403.2 142.2 6.8 11.2 10.2 58.64 380.8 360.4 1.344 15685 778.0 887.6 16.35 29.834 538.1 75.68 118.1 3.029 19.07 206.19
UB 406 × 178 × 54 54.1 402.6 177.7 7.7 10.9 10.2 68.95 380.8 360.4 1.483 18720 930 1055 16.48 33.28 1021 114.94 178.3 3.848 23.50 391
UB 406 × 178 × 60 60.1 406.4 177.9 7.9 12.8 10.2 76.52 380.8 360.4 1.491 21600 1063 1199 16.8 34.6 1203 135.25 209 3.965 33.49 465.2
UB 406 × 178 × 67 67.1 409.4 178.8 8.8 14.3 10.2 85.54 380.8 360.4 1.499 24330 1189 1346 16.87 38.58 1365 152.68 236.6 3.995 46.40 531.7
UB 406 × 178 × 74 74.2 412.8 179.5 9.5 16 10.2 94.51 380.8 360.4 1.507 27310 1323 1501 17 41.85 1545 172.20 267 4.044 63.10 607.1
UB 457 × 152 × 52 52.3 449.8 152.4 7.6 10.9 10.2 66.64 428 407.6 1.476 21370 950 1096 17.91 36.47 645 84.64 133.3 3.111 21.71 309.7
UB 457 × 152 × 60 59.8 454.6 152.9 8.1 13.3 10.2 76.23 428 407.6 1.487 25500 1122 1287 18.29 39.35 794.6 103.9 163.1 3.229 34.02 385.8
UB 457 × 152 × 67 67.2 458 153.8 9 15 10.2 85.55 428 407.6 1.496 28930 1263 1453 18.39 43.82 912.6 118.7 186.7 3.266 47.95 446.2
UB 457 × 152 × 74 74.2 462 154.4 9.6 17 10.2 94.48 428 407.6 1.505 32670 1414 1627 18.6 47.08 1047 135.6 213.1 3.328 66.18 516.3
UB 457 × 152 × 82 82.1 465.8 155.3 10.5 18.9 10.2 104.54 428 407.6 1.514 36590 1571 1811 18.71 51.67 1185 152.5 240.4 3.366 89.65 589.1
UB 457 × 191 × 67 67.1 453.4 189.9 8.5 12.7 10.2 85.51 428 407.6 1.632 29380 1296 1471 18.54 40.94 1452 152.9 237.3 4.121 37.54 703.8
UB 457 × 191 × 74 74.3 457 190.4 9 14.5 10.2 94.63 428 407.6 1.64 33320 1458 1653 18.76 43.68 1671 175.5 272.1 4.202 52.14 816.6
UB 457 × 191 × 82 82.0 460 191.3 9.9 16 10.2 104.48 428 407.6 1.648 37050 1611 1831 18.83 48.11 1871 195.6 303.9 4.232 69.72 920.1
UB 457 × 191 × 89 89.3 463.4 191.9 10.5 17.7 10.2 113.77 428 407.6 1.656 41020 1770 2014 18.99 51.3 2089 217.8 338.4 4.286 91.26 1035
UB 457 × 191 × 98 98.3 467.2 192.8 11.4 19.6 10.2 125.26 428 407.6 1.665 45730 1957 2232 19.11 55.92 2347 243.5 378.9 4.329 122.1 1173
UB 533 × 210 × 82 82.2 528.3 208.8 9.6 13.2 12.7 104.69 501.9 476.5 1.851 47540 1800 2059 21.31 54.19 2007 192.3 300.4 4.379 52.54 1328
UB 533 × 210 × 92 92.1 533.1 209.3 10.1 15.6 12.7 117.38 501.9 476.5 1.861 55230 2072 2360 21.69 57.61 2389 228.3 355.6 4.512 76.34 1596
UB 533 × 210 × 101 101.0 536.7 210 10.8 17.4 12.7 128.67 501.9 476.5 1.87 61520 2292 2612 21.87 61.89 2692 256.4 399.4 4.574 101.6 1811
UB 533 × 210 × 109 109.0 539.5 210.8 11.6 18.8 12.7 138.87 501.9 476.5 1.877 66820 2477 2828 21.94 66.56 2943 279.2 435.8 4.603 127.3 1989
UB 533 × 210 × 122 122.0 544.5 211.9 12.7 21.3 12.7 155.40 501.9 476.5 1.889 76040 2793 3196 22.12 73.24 3388 319.7 499.7 4.669 179.6 2312
UB 610 × 229 × 101 101.2 602.6 227.6 10.5 14.8 12.7 128.92 573 547.6 2.073 75780 2515 2881 24.24 66.86 2915 256.1 400.2 4.755 78.16 2512
UB 610 × 229 × 113 113.0 607.6 228.2 11.1 17.3 12.7 143.94 573 547.6 2.084 87320 2874 3281 24.63 71.3 3434 301.0 469.3 4.884 112.3 2985
UB 610 × 229 × 125 125.1 612.2 229 11.9 19.6 12.7 159.34 573 547.6 2.095 98610 3221 3676 24.88 76.88 3932 343.4 535.4 4.968 155.2 3444
UB 610 × 229 × 140 139.9 617.2 230.2 13.1 22.1 12.7 178.20 573 547.6 2.107 111800 3622 4142 25.05 84.96 4505 391.4 611.4 5.028 217.8 3978
UB 610 × 305 × 149 149.2 612.4 304.8 11.8 19.7 16.5 190.04 573 540 2.392 125900 4111 4594 25.74 78.78 9308 610.7 937.3 6.998 200.4 8165
UB 610 × 305 × 179 179.0 620.2 307.1 14.1 23.6 16.5 228.08 573 540 2.412 153000 4935 5547 25.9 94.25 11408 743.0 1144 7.072 341.6 10137
UB 610 × 305 × 238 238.1 635.8 311.4 18.4 31.4 16.5 303.33 573 540 2.452 209500 6589 7486 26.28 123.9 15837 1017 1574 7.226 790.6 14432
UB 686 × 254 × 125 125.2 677.9 253 11.7 16.2 15.2 159.48 645.5 615.1 2.318 118000 3481 3994 27.2 84.33 4383 346.5 542.4 5.242 118.3 4786
UB 686 × 254 × 140 140.1 683.5 253.7 12.4 19 15.2 178.43 645.5 615.1 2.331 136300 3987 4558 27.64 90.16 5183 408.6 638.2 5.39 170.3 5708
UB 686 × 254 × 152 152.4 687.5 254.5 13.2 21 15.2 194.08 645.5 615.1 2.341 150400 4374 5000 27.83 96.35 5784 454.5 710.2 5.459 221.3 6407
UB 686 × 254 × 170 170.2 692.9 255.8 14.5 23.7 15.2 216.83 645.5 615.1 2.354 170300 4916 5631 28.03 106.2 6630 518.4 811.4 5.53 309.8 7402
UB 762 × 267 × 147 146.9 754 265.2 12.8 17.5 16.5 187.19 719 686 2.515 168500 4470 5156 30 102.4 5455 411.4 647.2 5.398 162.2 7377
UB 762 × 267 × 173 173.0 762.2 266.7 14.3 21.6 16.5 220.37 719 686 2.534 205300 5387 6198 30.52 115.4 6850 513.7 807.5 5.575 270.3 9364
UB 762 × 267 × 197 196.8 769.8 268 15.6 25.4 16.5 250.64 719 686 2.552 240000 6234 7167 30.94 126.8 8175 610.1 958.6 5.711 407.3 11290
UB 838 × 292 × 176 175.9 834.9 291.7 14 18.8 17.8 224.02 797.3 761.7 2.778 246000 5893 6808 33.14 123.7 7799 534.7 841.9 5.9 226.2 12950
UB 838 × 292 × 194 193.8 840.7 292.4 14.7 21.7 17.8 246.82 797.3 761.7 2.791 279200 6641 7640 33.63 130.8 9066 620.1 973.8 6.061 309.6 15160
UB 838 × 292 × 226 226.5 850.9 293.8 16.1 26.8 17.8 288.56 797.3 761.7 2.814 339700 7985 9155 34.31 144.9 11360 773.3 1212 6.274 516.5 19230
UB 914 × 305 × 201 200.9 903 303.3 15.1 20.2 19.1 255.92 862.6 824.4 2.956 325300 7204 8351 35.65 144.2 9423 621.4 982.0 6.068 297.9 18300
UB 914 × 305 × 224 224.2 910.4 304.1 15.9 23.9 19.1 285.64 862.6 824.4 2.973 376400 8269 9535 36.3 153.2 11240 739.0 1163 6.272 427.2 22010
UB 914 × 305 × 253 253.4 918.4 305.5 17.3 27.9 19.1 322.83 862.6 824.4 2.991 436300 9501 10940 36.76 167.8 13300 870.8 1371 6.419 630.5 26280
UB 914 × 305 × 289 289.1 926.6 307.7 19.5 32 19.1 368.27 862.6 824.4 3.012 504200 10880 12570 37 189.8 15600 1014 1601 6.508 933.6 31090
UB 914 × 419 × 343 343.3 911.8 418.5 19.4 32 24.1 437.30 847.8 799.6 3.417 625800 13730 15480 37.83 191.1 39160 1871 2890 9.463 1199 75650
UB 914 × 419 × 388 388.0 921 420.5 21.4 36.6 24.1 494.22 847.8 799.6 3.44 719600 15630 17670 38.16 211.9 45440 2161 3341 9.589 1741 88690

Notes

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