BIG DIAMETER ERW PIPES CONFIRMING TO IS 3589 |
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Wall Thickness in mm |
Nominal Bore 7" NB |
Nominal Bore 8" NB |
Nominal Bore 10" NB |
Nominal Bore 12" NB |
Nominal Bore 14" NB |
Nominal Bore 16" NB |
Nominal Bore 18" NB |
Nominal Bore 20" NB |
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193.7 mm OD |
219.1 mm OD |
273 mm OD |
323.7 mm OD |
355.6 mm OD |
406.4 mm OD |
457 mm OD |
408 mm OD |
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kg/mtr. |
kg/mtr. |
kg/mtr. |
kg/mtr. |
kg/mtr. |
kg/mtr. |
kg/mtr. |
kg/mtr. |
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4.85 |
22.59 |
25.62 |
32.07 |
38.13 |
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5.20 |
24.17 |
27.43 |
34.34 |
40.85 |
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5.60 |
26.00 |
29.28 |
36.93 |
43.93 |
48.11 |
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6.00 |
27.88 |
31.53 |
39.50 |
47.02 |
51.49 |
61.00 |
69.00 |
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6.35 |
29.34 |
33.28 |
41.73 |
49.67 |
54.43 |
62.35 |
70.50 |
78.50 |
7.01 |
32.27 |
36.76 |
46.43 |
55.45 |
61.82 |
69.04 |
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7.94 |
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41.00 |
50.95 |
61.85 |
67.98 |
77.92 |
87.80 |
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8.18 |
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42.56 |
53.42 |
65.12 |
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9.53 |
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51.50 |
60.24 |
73.75 |
81.21 |
93.13 |
105.00 |
117.00 |
12.70 |
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107.28 |
123.30 |
139.00 |
155.00 |
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Tolerance on Thickness and Weight : as per IS 1239 |
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The following manufacturing tolerance shall be permitted on the tubes ans sockets |
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a) Thickness: |
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1) Butt Welded Light Tubes + Not Limited |
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- 8 percent |
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Medium and Heavy Tubes + Not Limited |
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-10 percent |
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2) Seamless Tubes + Not Limited |
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- 12.5 percent |
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b) Weight: |
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1) Single Tube (light series) + 10 percent |
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- 8 percent |
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2) Single Tube (Medium & Heavy series) + 10 percent |
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