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Holloe [square pipes]

IS: 1161-1998 Steel Tubes For Structural Purposes

Size N.B. mm Series Outside Diameter mm Wall Thickness mm Weight Kg/m Plain end Mtr.per Ton
15 Light
Medium
Heavy		 21.30 2.00
2.60
3.20		 0.947
1.21
1.44		 1056
826
694
20 Light
Medium
Heavy		 26.90 2.30
2.60
3.20		 1.38
1.56
1.87		 725
641
535
25 Light
Medium
Heavy		 33.70 2.60
3.20
4.00		 1.98
2.41
2.93		 505
415
341
32 Light
Medium
Heavy		 42.40 2.60
3.20
4.00		 2.54
3.10
3.79		 394
323
264
40 Light
Medium
Heavy 		48.30 2.90
3.20
4.00		 3.23
3.56
4.37		 310
281
229
50 Light
Medium
Heavy 		60.30 2.90
3.60
4.50		 4.08
5.03
6.19		 245
199
162
65 Light
Medium
Heavy		 76.10 3.20
3.60
4.50		 5.71
6.42
7.93		 175
156
123
80 Light
Medium
Heavy		 88.90 3.20
4.00
4.80		 6.72
8.36
9.90		 149
120
101
90 Light
Medium
Heavy		 101.60 3.60
4.00
4.80		 8.70
9.63
11.50 		115
104
87
100 Light
Medium
Heavy		 114.30 3.60
4.50
5.40		 975
12.20
14.50		 103
82
69
110 Light
Medium
Heavy		 127.00 4.50
4.80
5.40		 13.60
14.50
16.20		 74
69
62
125 Light
Medium
Heavy		 139.70 4.50
4.80
5.40		 15.0
15.9
17.9		 67
63
56
135 Light
Medium
Heavy		 152.40 4.50
4.80
5.40		 16.4
17.5
19.6		 61
57
51
150 Light
Medium
Heavy 		165.10 4.50
4.80
5.40		 17.8
18.9
21.3		 56
53
47
150 Light
Medium
Heavy 1 Heavy 2		 168.30 4.50
4.80
5.40
6.30		 18.2
19.4
21.7
25.2 		55
52
46
40
175 Light
Medium
Heavy 		193.70 4.80
5.40
5.90		 22.4
25.1
27.3		 45
40
37
200 Light
Medium
Heavy		 219.10 4.80
5.60
5.90		 25.4
29.5
31.0		 39
34
32
225 Heavy 244.50 5.90 34.70 29
250 Heavy 273.00 5.90 38.90 26
300 Heavy 323.90 6.30 49.30 20


Tolerances
Outside Diameter i) upto and including
48.3 mm {short description of image}- + 0.4mm
{short description of image}- - 0.8 mm
  ii) over 48.3 mm - ± 1.0%{short description of image}- - 0.8 mm
Thickness (For All Size)
Welded tubes + Not Ltd - 10%
Weight Single tubes
Light {short description of image}- + 10%
{short description of image}- - 8 mm

Medium & Heavy {short description of image}- ± 10%
10 Tons Lot Light {short description of image}- ± 5%
Medium & Heavy {short description of image}- ± 7.5%


Physical Properties  
Grade Tensile Strength (min) Yield Stress
(min)		 Elongation on Gauge length (min.)
Mpa Mpa Percent
YSt 210 330 210 20
Yst 240 410 240 17
Yst 310 450 310 14

Note:
» 1 Mpa = IN/mm²
» Elongation percent for steel tubes up to and including 25 mm nominal bore for all grade shall be 12% minimum
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