Hot rolled channels with parallel flanges to GOST 8240-89
Name Dimensions Radiuses Area Mass Second moment
of area
Radius of
gyration
Section
modulus
First moment
of area
Center
of gravity
h b tw tf r1 r2 A M Iy Iz iy iz Wy Wz Sy Cy
mm mm mm mm mm mm cm2 kg/m cm4 cm4 cm cm cm3 cm3 cm3 cm
C5- 50 32 4.4 7 6 3.5 6.16 4.84 22.8 5.95 1.92 0.983 9.14 2.99 5.61 1.21
C6.5- 65 36 4.4 7.2 6 3.5 7.51 5.9 48.8 9.35 2.55 1.12 15 4.06 9.02 1.29
C8- 80 40 4.5 7.4 6.5 3.5 8.98 7.05 89.8 13.9 3.16 1.24 22.5 5.31 13.3 1.38
C10- 100 46 4.5 7.6 7 4 10.9 8.59 175 22.6 3.99 1.44 34.9 7.37 20.5 1.53
C12- 120 52 4.8 7.8 7.5 4.5 13.3 10.4 305 34.9 4.79 1.62 50.8 9.84 29.7 1.66
C14- 140 58 4.9 8.1 8 4.5 15.6 12.3 493 51.5 5.61 1.81 70.4 12.9 40.9 1.82
C16- 160 64 5 8.4 8.5 5 18.1 14.2 750 72.8 6.44 2 93.8 16.4 54.3 1.97
C16a- 160 68 5 9 8.5 5 19.5 15.3 827 90.5 6.51 2.15 103 19.6 59.5 2.19
C18- 180 70 5.1 8.7 9 5 20.7 16.3 1090 100 7.26 2.2 121 20.6 70 2.14
C18a- 180 74 5.1 9.3 9 5 22.2 17.4 1200 123 7.34 2.35 133 24.3 76.3 2.36
C20- 200 76 5.2 9 9.5 5.5 23.4 18.4 1530 134 8.08 2.39 153 25.2 88 2.3
C22- 220 82 5.4 9.5 10 6 26.7 21 2120 178 8.9 2.58 193 31 111 2.47
C24- 240 90 5.6 10 10.5 6 30.6 24 2910 248 9.75 2.85 243 39.5 139 2.72
C27- 270 95 6 10.5 11 6.5 35.2 27.7 4180 314 10.9 2.99 310 46.7 178 2.78
C30- 300 100 6.5 11 12 7 40.5 31.8 5830 393 12 3.12 389 54.8 224 2.83
C33- 330 105 7 11.7 13 7.5 46.5 36.5 8010 491 13.1 3.25 486 64.6 281 2.9
C36- 360 110 7.5 12.6 14 8.5 53.4 41.9 10850 611 14.3 3.38 603 76.3 350 2.99
C40- 400 115 8 13.5 15 9 61.5 48.3 15260 760 15.8 3.51 763 89.9 445 3.05
1