ERW BLACK – Round – IS 1239 (1/2″ to 6″)

N.B. & Series
Outside Diameter
Wall Thickness

Nominal Weight Black Tubes
Nominal Weight Black Tubes
Nominal Weight Galvanised Tubes
Nominal Weight Galvanised Tubes
mm
minimum
maximum
mm
SWG
P.E
S&S
P.E.
S & S
P.E.
S & S
P.E.
S & S
kg/m
kg/m
m/tone
m/tone
kg/m
kg/m
m/tone
m/tone
15

(1/2″)

 L 21.00 21.40 2.00 14 0.947 0.956 1056 1046 0.947 0.956 1056 1046
M 21.00 21.80 2.60 12 1.21 1.22 826 819 1.21 1.22 826 819
H 21.00 21.80 3.20 10 1.44 1.45 694 689 1.44 1.45 694 689
20

(3/4″)

 L 26.40 26.90 2.30 13 1.38 1.39 724 719 1.38 1.39 714 719
M 26.50 27.30 2.60. 12 1.56 1.57 641 637 1.56 1.57 641 637
H 26.50 27.30 3.20 10 1.87 1.88 534 532 1.87 1.88 534 532
25

(1″)

 L 33.20 33.80 2.60 12 1.98 2.00 505 500 1.98 2.00 505 500
M 33.30 34.20 3.20 10 2.41 2.43 415 411 2.41 2.43 415 411
H 33.30 34.20 4.00 8 2.93 2.95 341 339 2.93 2.95 341 339
32

(1 1/4″)

 L 41.90 42.50 2.60 12 2.54 2.57 393 389 2.54 2.57 393 389
M 42.00 42.90 3.20 10 3.10 3.13 322 319 3.10 3.13 322 319
H 42.00 42.90 4.00 8 3.79 3.82 264 261 3.79 3.82 264 261
40

(1 1/2″)

 L 47.80 48.40 2.90 11 3.23 3.27 309 306 3.23 3.27 309 306
M 47.90 48.80 3.20 10 3.56 3.60 281 277 3.56 3.60 281 277
H 47.90 48.80 4.00 8 4.37 4.41 229 226 4.37 4.41 229 226
50

(2″)

 L 59.60 60.20 2.90 11 4.08 4.15 245 241 4.08 4.15 245 241
M 59.70 60.80 3.60 9 5.03 5.10 199 196 5.03 5.10 199 196
H 59.70 60.80 4.50 7 6.19 6.26 161 159 6.19 6.26 161 159
65

(2 1/2″)

 L 75.20 76.00 3.20 10 5.71 5.83 175 171 5.71 5.83 175 171
M 75.30 76.60 3.60 9 6.42 6.54 155 153 6.42 6.54 155 153
H 75.30 76.60 4.50 7 7.93 8.05 126 124 7.93 8.05 126 124
80

(3″)

 L 87.90 88.70 3.20 10 6.72 6.89 149 145 6.72 6.89 149 145
M 88.00 89.50 4.00 8 8.36 8.53 119 117 8.36 8.53 119 117
H 88.00 89.50 4.80 6 9.90 10.10 101 96 9.90 10.40 101 96
100

(4″)

 L 113.00 113.90 3.60 9 9.75 10.00 102 100 9.75 10.00 102 100
M 113.10 115.00 4.50 7 12.20 12.50 80 80 12.20 12.50 82 80
H 113.10 115.00 5.40 5 14.50 14.80 69 67 14.50 14.80 69 67
125

(5″)

 M 138.50 140.80 4.80 6 15.90 16.40 63 61 15.90 16.40 63 61
H 138.50 140.80 5.40 5 17.90 18.40 56 54 17.90 18.40 56 54
150

(6″)

 M 163.90 166.50 4.80 6 18.90 19.50 53 51 18.90 19.50 53 51
H 163.50 166.50 5.40 5 21.30 21.90 47 45 21.30 21.90 47 45
Tolerances:
A)Thickness B)Weight C)Hydro Test Pressure 5 Mpa
1. Light Tubes + not limited
-8%		 1. Single Tube
(Light Series)		 +10%
-8%		 1. For quantities per load of
10 tonnes minimum (Light Series)		 +7.5%
-5%
2. Medium &
Heavy tubes		 +not limited
-10%		 2. Single Tube
(Medim & Heavy Series)		 +10%
-10%		 2. For quantities per load of
10 tonnes minimum (Medim &
Heavy Series)		 +7.5%
-7.5%