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Structural Steel Tube Specs

This document provides specifications for steel tubes for structural purposes according to Indian standard IS 1161:2014, including nominal dimensions, weights, material grades, mechanical properties, and tolerances. Tube sizes range from 15mm to 350mm in diameter with wall thicknesses from 2.0mm to 10.0mm. The steel grades meet minimum yield and tensile strengths between 210-310MPa and 330-450MPa, respectively, with 14-20% minimum elongation. Tolerances for dimensions and weights are also specified.

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167 views1 page

Structural Steel Tube Specs

This document provides specifications for steel tubes for structural purposes according to Indian standard IS 1161:2014, including nominal dimensions, weights, material grades, mechanical properties, and tolerances. Tube sizes range from 15mm to 350mm in diameter with wall thicknesses from 2.0mm to 10.0mm. The steel grades meet minimum yield and tensile strengths between 210-310MPa and 330-450MPa, respectively, with 14-20% minimum elongation. Tolerances for dimensions and weights are also specified.

Uploaded by

Nitin
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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STEEL TUBES FOR STRUCTURAL

Structural Applications PURPOSES CONFORMING TO IS 1161 : 2014


IS 1161~AS1163~EN10219

NB Outside Thickness Nominal Weight Black Calculated Nominal Grade Y S (MIN) T S (MIN) % age
and Diameter Tubes Plain End Weight Galvanized MPa MPa Elongation
Series Tubes Plain End
(mm) (mm) (mm) (Kg/m) (m/ton) (Kg/m) (m/ton) (Kg/mm2) (Kg/mm2)

15 21.3 2.0 0.947 1058 1.00 1003 YST - 210 210 (21.42) 330 (33.66) 20
- 2.6 1.21 826 1.26 794 YST - 240 240 (24.48) 410 (41.82) 17
- 3.2 1.44 694 1.49 671 YST - 310 310 (31.62) 450 (45.9) 14
20 26.9 2.3 1.38 725 1.43 699
- 2.6 1.56 641 1.61 621
- 3.2 1.87 535 1.92 521 Tolerances:
25 33.7 2.6 1.98 505 2.03 439
- 3.2 2.41 415 2.46 407
Outside diameter upto & including
- 4.0 2.93 341 2.98 336 48.3 mm, + 0.4 mm/ - 0.8 mm,
32 42.4 2.6 2.54 394 2.62 382
- 3.2 3.10 323 3.18 314 Over 48.3 mm ± 1%
- 4.0 3.79 264 3.87 258
40 48.3 2.9 3.23 310 3.34 299 Thickness:
- 3.2 3.56 281 3.67 272
- 4.0 4.37 229 4.48 223 For all sizes welded tubes ± 10%
50 60.3 2.9 4.08 245 4.20 238
- 3.6 5.03 199 5.15 194 Length:
- 4.5 6.19 162 6.31 158
65 76.1 3.2 5.71 175 5.86 171
4 M to 7 M
- 3.6 6.42 156 6.57 152
- 4.5 7.93 126 8.10 123 Galvanizing:
80 88.9 3.2 6.72 149 6.90 145
Minimum zinc coating 360 gm/m2
- 4.0 8.36 120 8.54 117
- 4.8 9.90 101 10.08 99
90 101.6 3.6 8.70 115 8.97 111 Weight:
- 4.0 9.63 144 7.20 139 Single tube = ± 10%
- 4.8 11.50 87 11.77 85
100 114.3 3.6 9.75 103 9.97 100 10 Ton Lot = ± 7.5%
- 4.5 12.20 82 12.42 81
- 5.4 14.50 69 14.72 68
110 127.0 4.5 13.60 74 13.90 72
- 4.8 14.50 69 14.80 68
- 5.4 16.20 62 14.80 61
125 139.7 4.5 15.00 67 15.25 66
- 4.8 15.90 63 16.15 62
- 5.4 17.90 56 18.15 55
150 165.1 4.5 17.80 56 18.20 55
- 4.8 18.90 52 19.80 51
- 5.4 21.30 47 21.70 46
150 168.3 4.5 18.2 55 18.66 54
- 4.8 19.4 52 19.88 50
- 5.4 21.7 46 22.10 45
- 6.3 25.2 40 41.00 24
175 193.7 4.8 22.40 45 22.94 44
- 5.4 25.10 40 25.64 39
- 5.9 27.30 37 27.84 36
- 6.3 29.10 34 29.60 34
200 219.1 4.8 25.40 39 25.95 39
- 5.6 29.50 34 30.05 33
- 5.9 31.00 32 31.60 32
- 8.0 41.60 24 42.20 24
- 10.0 51.60 19 52.10 19
250 273.0 5.9 38.90 26 39.50 25
- 8.0 52.30 19 53.00 19
- 10.0 64.90 15 65.50 15
300 323.9 6.3 49.30 20 50.10 20
- 8.0 62.30 16 63.10 16
- 10.0 77.40 13 78.20 13
350 355.6 8.0 68.60 15 69.58 14
- 10.0 85.20 12 86.10 12

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