SPECIFICATION FOR STEEL TUBES & TUBULARS CONFORMING TO IS 1239:2004

N.B AND SERIES OUTSIDE DIAMETER Wall Thickness NOMINAL WEIGHT BLACK TUBES PLAIN END
mm mm mm Kg/m m/tone
16 1/2" L 2.00 0.947 1056
M 21.30 2.60 1.21 826
H 3.20 1.44 694
20(3/4") L 2.30 1.38 725
M 26.90 3.20 1.56 641
H 3.20 1.87 535
25(1") L 2.60 1.98 505
M 33.70 3.20 2.41 415
H 4.00 2.93 341
32(1 1/4") L 2.60 2.54 394
M 42.40 3.20 3.10 323
H 4.00 3.79 264
40(1 1/2") L 2.90 3.23 310
M 48.30 3.20 3.56 281
H 4.00 4.37 229
50(2") L 2.90 4.08 245
M 60.30 3.60 5.03 199
H 4.50 6.19 162
65(2 1/2") L 3.20 5.71 175
M 76.10 3.60 6.42 156
H 4.50 7.93 126
80(3") L 3.20 6.72 149
M 88.90 4.00 8.36 120
H 4.80 9.90 101
100(4") L 3.60 9.75 103
M 114.30 4.50 12.20 82
H 5.40 14.50 69
125(5") L 4.50 15.00 67
M 139.70 4.80 15.90 63
H 5.40 17.90 56
150(6") L 4.50 17.80 56
M 165.10 4.80 18.90 53
H 5.40 21.30 47
150(6") L 4.50 18.20 55
M 168.30 4.80 19.40 52
H1 5.40 21.70 46
H2 6.30 25.20 40
TOLERANCES
A) THICKNESS B) WEIGHT (MASS) C) LEAK TIGHTNESS TEST
1.+not limited -10% 1.Single Tube (Light Series) +10% -8%
2.Single Tube (Medium & Heavy Series) +10% -10%		 1.Up to and including 48.3 mm outside diameter + not limited -8%
2.Over 48.3 mm outside diameter +not limited -10%
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