Properties - Unequal Angles

Welcome to our Unequal Angle properties page! Here you'll find properties for all UK Unequal Angle 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. You can also purchase all our CAD data in one easy download, containing the sections as individual files and AutoCAD Design Center files or Microstation cel libraries - just click on the Shop button in the navigation above.

Section Reference Dimension Second Moment of Area Radius of Gyration
      Axis
x-x
Axis
y-y
Axis
u-u
Axis
v-v
Axis
x-x
Axis
y-y
Axis
u-u
Axis
v-v
  cx cy cm4 cm4 cm4 cm4 cm cm cm cm
200x150x18 6.33 3.85 2380 1150 2920 623 6.29 4.37 6.97 3.22
200x150x15 6.21 3.73 2020 979 2480 526 6.33 4.4 7 3.23
200x150x12 6.08 3.61 1650 803 2030 430 6.36 4.44 7.04 3.25
200x100x15 7.16 2.22 1760 299 1860 193 6.4 2.64 6.59 2.12
200x100x12 7.03 2.1 1440 247 1530 159 6.43 2.67 6.63 2.14
200x100x10 6.93 2.01 1220 210 1290 135 6.46 2.68 6.65 2.15
150x90x15 5.21 2.23 761 205 841 126 4.74 2.46 4.98 1.93
150x90x12 5.08 2.12 627 171 694 104 4.77 2.49 5.02 1.94
150x90x10 5 2.04 533 146 591 88.3 4.8 2.51 5.05 1.95
150x75x15 5.52 1.81 713 119 753 78.6 4.75 1.94 4.88 1.58
150x75x12 5.4 1.69 588 99.6 623 64.7 4.78 1.97 4.92 1.59
150x75x10 5.31 1.61 501 85.6 531 55.1 4.81 1.99 4.95 1.6
125x75x12 4.31 1.84 354 95.5 391 58.5 3.95 2.05 4.15 1.61
125x75x10 4.23 1.76 302 82.1 334 49.9 3.97 2.07 4.18 1.61
125x75x8 4.14 1.68 247 67.6 274 40.9 4 2.09 4.21 1.63
100x75x12 3.27 2.03 189 90.2 230 49.5 3.1 2.14 3.42 1.59
100x75x10 3.19 1.95 162 77.6 197 42.2 3.12 2.16 3.45 1.59
100x75x8 3.1 1.87 133 64.1 162 34.6 3.14 2.18 3.47 1.6
100x65x10 3.36 1.63 154 51 175 30.1 3.14 1.81 3.35 1.39
100x65x8 3.27 1.55 127 42.2 144 24.8 3.16 1.83 3.37 1.4
100x65x7 3.23 1.51 113 37.6 128 22 3.17 1.83 3.39 1.4
100x50x8 3.6 1.13 116 19.7 123 12.8 3.19 1.31 3.28 1.06
100x50x6 3.51 1.05 89.9 15.4 95.4 9.92 3.21 1.33 3.31 1.07
80x60x7 2.51 1.52 59 28.4 72 15.4 2.51 1.74 2.77 1.28
80x40x8 2.94 0.963 57.6 9.61 60.9 6.34 2.53 1.03 2.6 0.838
80x40x6 2.85 0.884 44.9 7.59 47.6 4.93 2.55 1.05 2.63 0.845
75x50x8 2.52 1.29 52 18.4 59.6 10.8 2.35 1.4 2.52 1.07
75x50x6 2.44 1.21 40.5 14.4 46.6 8.36 2.37 1.42 2.55 1.08
70x50x6 2.23 1.25 33.4 14.2 39.7 7.92 2.2 1.43 2.4 1.07
65x50x5 1.99 1.25 23.2 11.9 28.8 6.32 2.05 1.47 2.28 1.07
60x40x6 2 1.01 20.1 7.12 23.1 4.16 1.88 1.12 2.02 0.855
60x40x5 1.96 0.972 17.2 6.11 19.7 3.54 1.89 1.13 2.03 0.86
60x30x5 2.17 0.684 15.6 2.63 16.5 1.71 1.91 0.784 1.97 0.633
50x30x5 1.73 0.741 9.36 2.51 10.3 1.54 1.57 0.816 1.65 0.639
45x30x4 1.48 0.74 5.78 2.05 6.65 1.18 1.42 0.85 1.52 0.64
40x25x4 1.36 0.623 3.89 1.16 4.35 0.7 1.26 0.687 1.33 0.534
40x20x4 1.47 0.48 3.59 0.6 3.8 0.393 1.26 0.514 1.3 0.417
30x20x4 1.03 0.541 1.59 0.553 1.81 0.33 0.925 0.546 0.988 0.421
30x20x3 0.99 0.502 1.25 0.437 1.43 0.256 0.935 0.553 1 0.424