Equal Leg Angles

Rolled steel angle – equal is normally called an “angle”, “equal angle” or “L-shape”. Even though both legs are the same length, they are described by giving both leg lengths and the wall thickness (all in mm), eg. 100 x 100 x 12 RSA. For structural steel purposes, equal angles are most often used for brackets for cleat connections. Sometimes they are also used as lintels (2 angles bolted back to back). They are often used for balconies, platforms, stairs, concrete supports, etc.

Section
Designation a x a x t
Section Dimensions
a mm
Section Dimensions
t mm
Mass per metre
M kg/m
Radius root
r 1 mm
Radius Toe
r2mm
Distance to centre of gravity
Cx&Cycm
Second Moment
of Area Axis Ix,Iy
cm4
Second Moment
of Area Axis
Ixy
cm4
Second Moment
of Area Axis
Iucm4
Second Moment
of Area Axis
Ivcm4
Radius of Gyration
Axis
rx,rycm
Radius of Gyration
Axis
rucm
Radius of Gyration
Axis
rvcm
Elastic Modulus
Axis
Zx,Zy
cm3
Area of section
A cm2
Section
Designation a x a x t
Section Dimensions
a mm
Section Dimensions
t mm
Mass per metre
M kg/m
Radius root
r 1 mm
Radius Toe
r2mm
Distance to centre of gravity
Cx&Cycm
Second Moment
of Area Axis Ix,Iy
cm4
Second Moment
of Area Axis
Ixy
cm4
Second Moment
of Area Axis
Iucm4
Second Moment
of Area Axis
Ivcm4
Radius of Gyration
Axis
rx,rycm
Radius of Gyration
Axis
rucm
Radius of Gyration
Axis
rvcm
Elastic Modulus
Axis
Zx,Zy
cm3
Area of section
A cm2
250x250x35 250 35 128 18 9 7.5 9264 -5402 14666 3862 7.54 9.48 4.87 529 163
250x250x32 250 32 118 20 10 7.38 8597 -5032 13629 3565 7.57 9.53 4.87 488 150
250x250x28 250 28 104 18 9 7.24 7697 -4528 12226 3169 7.62 9.61 4.89 433 133
250x250x25 250 25 93.6 20 10 7.12 6975 -4111 11086 2864 7.65 9.64 4.9 390 119
200x200x24 200 24 71.1 18 9 5.84 3331 -1953 5284 1378 6.06 7.64 3.9 235 90.6
200x200x20 200 20 59.9 18 9 5.68 2851 -1678 4529 1172 6.11 7.7 3.92 199 76.3
200x200x18 200 18 54.2 18 9 5.6 2600 -1533 4132 1067 6.13 7.73 3.93 181 69.1
200x200x16 200 16 48.5 18 9 5.52 2341 -1381 3723 960 6.16 7.76 3.94 162 61.8
180x180x18 180 18 48.6 18 9 5.1 1866 -1097 2963 768 5.49 6.92 3.52 145 61.9
180x180x16 180 16 43.5 18 9 5.02 1682 -991 2673 692 5.51 6.95 3.53 130 55.4
160x160x15 160 15 36.2 17 8.5 4.49 1099 -646 1745 453 4.88 6.16 3.13 95.5 46.1
150x150x18 150 18 40.1 16 8 4.37 1050 -615 1665 435 4.54 5.71 2.92 98.7 51
150x150x15 150 15 33.8 16 8 4.25 898 -528 1426 370 4.57 5.76 2.93 83.5 43
150x150x12 150 12 27.3 16 8 4.12 737 -433 1170 303 4.6 5.8 2.95 67.7 34.8
150x150x10 150 10 23 16 8 4.03 624 -366 991 258 4.62 5.82 2.97 56.9 29.3
130x130x12 130 12 23.5 14 7 3.64 472 -278 750 195 3.97 5 2.55 50.4 30
120x120x15 120 15 26.6 13 6.5 3.51 445 -260 705 185 3.62 4.56 2.33 52.4 33.9
120x120x12 120 12 21.6 13 6.5 3.4 368 -216 584 152 3.65 4.6 2.35 42.7 27.5
120x120x10 120 10 18.2 13 6.5 3.31 313 -184 497 129 3.67 4.63 2.36 36 23.2
120x120x8 120 8 14.7 13 6.5 3.23 255 -150 405 105 3.69 4.65 2.37 29.1 18.7
100x100x15 100 15 21.9 12 6 3.02 249 -144 393 104 2.98 3.75 1.93 35.6 27.9
100x100x12 100 12 17.8 12 6 2.9 207 -121 328 85.8 3.02 3.8 1.94 29.1 22.7
100x100x10 100 10 15 12 6 2.82 177 -104 280 73 3.04 3.83 1.95 24.6 19.2
100x100x8 100 8 12.2 12 6 2.74 145 -85 230 59.9 3.06 3.85 1.96 19.9 15.5
90x90x12 90 12 15.9 11 5.5 2.66 148 -86.3 234 61.7 2.7 3.4 1.74 23.3 20.3
90x90x10 90 10 13.4 11 5.5 2.58 127 -74.4 201 52.6 2.72 3.43 1.75 19.8 17.1
90x90x9 90 9 12.2 11 5.5 2.54 116 -67.9 184 47.9 2.73 3.44 1.76 17.9 15.5
90x90x8 90 8 10.9 11 5.5 2.5 104 -61.2 166 43.1 2.74 3.45 1.76 16.1 13.9
90x90x7 90 7 9.61 11 5.5 2.45 92.5 -54.3 147 38.3 2.75 3.46 1.77 14.1 12.2
90x90x6 90 6 8.3 11 5.5 2.41 80.3 -47 127 33.3 2.76 3.47 1.78 12.2 10.6
80x80x10 80 10 11.9 10 5 2.34 87.5 -51.1 139 36.4 2.41 3.03 1.55 15.4 15.1
80x80x8 80 8 9.63 10 5 2.26 72.2 -42.4 115 29.9 2.43 3.06 1.56 12.6 12.3
80x80x6 80 6 7.34 10 5 2.17 55.8 -32.7 88.5 23.1 2.44 3.08 1.57 9.57 9.35
75x75x8 75 8 8.99 9 4.5 2.14 59.1 -34.7 93.8 24.5 2.27 2.86 1.46 11 11.4
75x75x6 75 6 6.85 9 4.5 2.05 45.8 -26.9 72.7 18.9 2.29 2.89 1.47 8.41 8.73
70x70x10 70 10 10.3 9 4.5 2.09 57.2 -33.3 90.5 24 2.09 2.63 1.35 11.7 13.1
70x70x8 70 8 8.36 9 4.5 2.01 47.5 -27.8 75.3 19.7 2.11 2.66 1.36 9.52 10.6
70x70x7 70 7 7.38 9 4.5 1.97 42.3 -24.8 67.1 17.5 2.12 2.67 1.36 8.41 9.4
70x70x6 70 6 6.38 9 4.5 1.93 36.9 -21.6 58.5 15.3 2.13 2.68 1.37 7.27 8.13
65x65x7 65 7 6.83 9 4.5 1.85 33.4 -19.6 53 13.9 1.96 2.47 1.26 7.18 8.7
60x60x10 60 10 8.69 8 4 1.85 34.9 -20.1 55.1 14.8 1.78 2.23 1.16 8.41 11.1
60x60x8 60 8 7.09 8 4 1.77 29.2 -17 46.1 12.2 1.8 2.26 1.16 6.89 9.03
60x60x6 60 6 5.42 8 4 1.69 22.8 -13.4 36.1 9.44 1.82 2.29 1.17 5.29 6.91
60x60x5 60 5 4.57 8 4 1.64 19.4 -11.3 30.7 8.03 1.82 2.3 1.17 4.45 5.82
50x50x8 50 8 5.82 7 3.5 1.52 16.3 -9.41 25.7 6.88 1.48 1.86 0.963 4.68 7.41
50x50x6 50 6 4.47 7 3.5 1.45 12.8 -7.5 20.3 5.34 1.5 1.89 0.968 3.61 5.69
50x50x5 50 5 3.77 7 3.5 1.4 11 -6.42 17.4 4.55 1.51 1.9 0.973 3.05 4.8
50x50x4 50 4 3.06 7 3.5 1.36 8.97 -5.24 14.2 3.73 1.52 1.91 0.979 2.46 3.89
50x50x3 50 3 2.33 7 3.5 1.31 6.86 -3.98 10.8 2.88 1.52 1.91 0.986 1.86 2.96
45x45x6 45 6 4 7 3.5 1.32 9.16 -5.33 14.5 3.83 1.34 1.69 0.867 2.88 5.09
45x45x5 45 5 3.38 7 3.5 1.28 7.84 -4.58 12.4 3.26 1.35 1.7 0.871 2.43 4.3
45x45x4.5 45 4.5 3.06 7 3.5 1.26 7.15 -4.17 11.3 2.97 1.35 1.7 0.873 2.2 3.9
45x45x4 45 4 2.74 7 3.5 1.23 6.43 -3.75 10.2 2.68 1.36 1.71 0.876 1.97 3.49
45x45x3 45 3 2.09 7 3.5 1.18 4.93 -2.85 7.78 2.07 1.36 1.71 0.882 1.49 2.66
40x40x6 40 6 3.52 6 3 1.2 6.31 -3.66 9.97 2.65 1.19 1.49 0.77 2.26 4.48
40x40x5 40 5 2.97 6 3 1.16 5.43 -3.17 8.59 2.26 1.2 1.51 0.773 1.91 3.79
40x40x4 40 4 2.42 6 3 1.12 4.47 -2.61 7.09 1.86 1.21 1.52 0.777 1.55 3.08
40x40x3 40 3 1.84 6 3 1.07 3.45 -2.01 5.45 1.44 1.21 1.52 0.783 1.18 2.35
35x35x4 35 4 2.09 5 2.5 1 2.95 -1.73 4.68 1.23 1.05 1.32 0.678 1.18 2.67
30x30x5 30 5 2.18 5 2.5 0.918 2.16 -1.25 3.41 0.917 0.883 1.11 0.575 1.04 2.78
30x30x4 30 4 1.78 5 2.5 0.878 1.8 -1.05 2.85 0.754 0.892 1.12 0.577 0.85 2.27
30x30x3 30 3 1.36 5 2.5 0.835 1.4 -0.819 2.22 0.586 0.899 1.13 0.581 0.649 1.74
25x25x5 25 5 1.78 3.5 1.75 0.799 1.21 -0.686 1.9 0.524 0.731 0.915 0.481 0.711 2.26
25x25x4 25 4 1.45 3.5 1.75 0.762 1.02 -0.588 1.61 0.43 0.741 0.931 0.482 0.586 1.85
25x25x3 25 3 1.12 3.5 1.75 0.723 0.803 -0.469 1.27 0.334 0.751 0.945 0.484 0.452 1.42
20x20x3 20 3 0.882 3.5 1.75 0.598 0.392 -0.227 0.618 0.165 0.59 0.742 0.383 0.279 1.12
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