PIPE DIVISION-MS-PIPES

STEEL TUBES FOR STRUCTURAL PURPOSES : IS : 1161/1998

NB and Outside Thickness Normal Weight Calculated Nominal Weight Area of Momen Modulus Radius
Series Diameter of Black Tubes Galvanized Tubes Plain End Cross of of of
Section Intertia Section Gyration
mm mm mm mm kg/m m/Tonne cm2 cm2 cm2 cm
15L 21.3 2.00 0.947 1056 1.00 1003 1.21 0.57 0.54 0.69
M 2.60 1.21 828 1.26 794 1.53 0.69 0.64 0.66
H 3.20 1.44 694 1.49 671 1.82 0.75 0.70 0.55
20L 26.9 2.30 1.38 725 1.43 699 1.78 1.36 1.01 0.87
M 2.60 1.56 641 1.61 621 1.98 1.48 1.10 0.86
H 3.20 1.87 535 1.92 521 2.38 1.70 1.26 0.84
25L 33.7 2.60 1.98 505 2.03 493 2.54 3.09 1.83 1.10
M 3.20 2.41 415 2.46 407 3.06 3.61 2.14 1.08
H 4.00 2.93 341 2.98 336 3.73 4.19 2.48 1.05
32L 42.4 2.60 2.54 394 2.62 382 3.25 6.47 3.05 1.41
M 3.20 3.10 323 3.18 314 3.94 7.62 3.59 1.39
H 4.00 3.79 264 3.87 258 4.82 8.99 4.24 1.36
40L 48.3 2.90 3.23 310 3.34 299 4.13 10.70 4.43 1.61
M 3.20 3.56 281 3.67 272 4.53 11.59 4.80 1.59
H 4.00 4.37 229 4.48 223 4.56 13.77 5.70 1.57
50L 60.3 2.90 4.80 245 4.20 238 5.23 21.59 7.16 2.03
M 3.20 5.03 199 5.15 194 6.41 25.88 8.58 2.00
H 4.50 6.19 162 6.31 158 7.88 30.90 10.20 1.98
65L 76.1 3.20 5.71 175 5.86 171 7.32 48.79 12.82 2.58
M 3.60 6.42 156 6.57 152 8.20 54.02 14.20 2.57
H 4.50 7.93 126 8.10 123 10.10 65.12 17.10 0.04
80L 88.9 3.20 6.72 149 6.90 145 8.61 79.23 17.82 3.03
M 4.00 8.36 120 8.54 117 10.70 96.36 21.68 3.00
H 4.80 9.90 101 10.08 99 12.70 112.52 25.31 2.98
90L 101.6 3.60 8.70 115 8.97 111 11.10 133.27 26.23 3.47
M 4.00 9.63 104 7.20 139 12.30 146.32 28.80 3.45
H 4.80 11.50 87 11.77 85 14.60 171.44 33.75 3.43
100L 114.3 3.60 9.75 103 9.97 100 12.50 192.03 33.60 3.92
M 4.50 12.20 82 12.42 81 15.50 234.30 41.00 3.89
H 5.40 14.50 69 14.72 68 18.50 274.50 48.00 0.04
110L 127.0 4.50 13.60 74 13.90 72 17.30 325.30 51.20 4.33
M 4.80 14.50 69 14.80 68 18.40 344.58 54.27 4.32
H 5.40 16.20 62 14.80 61 20.60 382.00 60.20 4.30
125L 139.7 4.50 15.00 67 15.25 66 19.10 437.20 62.60 4.78
M 4.80 15.90 63 16.15 62 20.30 463.44 66.35 4.77
H 5.40 17.90 56 18.15 55 22.80 514.50 73.70 4.75
135L 152.4 4.50 16.40 61 16.78 60 20.90 572.20 75.10 5.23
M 4.80 17.50 57 17.88 56 22.20 606.92 79.65 5.22
H 5.40 19.60 51 19.98 55 25.00 674.50 88.50 5.20
150L 165.1 4.50 17.80 56 18.20 55 22.70 732.60 88.70 5.68
M 4.80 18.90 53 19.80 51 24.20 777.32 94.16 5.67
H 5.40 21.30 47 21.70 46 27.10 864.70 105.00 5.65
150L 168.3 4.50 18.20 55 18.66 54 23.10 777.20 92.40 5.79
M 4.80 19.40 52 19.88 50 24.70 824.78 98.01 5.78
H 5.40 21.70 36 22.24 45 27.60 917.70 109.00 5.76
H 6.30 25.20 40 41.70 24 32.00 1053.00 125.00 5.73
175L 193.7 4.80 22.40 45 22.94 44 28.50 1271.71 131.31 6.68
M 5.40 25.10 40 25.64 39 32.00 1417.00 146.00 6.66
H 5.90 27.30 37 27.84 36 34.80 1535.20 158.65 6.64
200L 219.1 4.80 25.40 39 25.95 39 32.30 1856.51 169.47 7.58
M 5.60 29.50 34 30.05 33 37.50 2141.00 195.00 7.55
H 5.90 31.00 32 31.55 32 39.50 2247.00 205.00 7.54
IS : 1161:1998
TOLERANCE : Outside Diameter: Upto & Including 48.3mm + 0.4 mm
– 0.8 mm
Over 48.3 mm ± 1%
Wall Thickness : + Not Limited
– 10%
Weight : For Single Tube (Light Series) + 10%; – 8 %
For Single Tube (Medium & Heavy Series) ± 10 %
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