Class

Nominal Bore

Outside Diameter

Wall Thickness

Weight of Black Pipes

Weight of Galvanised Pipes (Calculated)

No. of Pipes Per Std. Bundle  (1 Tonne Approx.)

Max.

Min.

Plain End

Screwed & Socketed

Plain Ended

Screwed & Socketed

inch

 mm

inch

 mm inch mm

inch

 mm

Kg/mtr

 mtr/ton ft/ton Kg/mtr mtr/ton ft/ton Kg/mtr mtr/ton ft/ton Kg/mtr mtr/ton ft/ton
L

I

G

H

T

(A)

1/2

 15

0.843

 21.4

0.827

 21.0

0.079

2.0

0.947

 1056 3465 0.956 1046 3432 1.00 1000 3281 1.007 993 3258

160 

3/4

 20

1.059

 26.9

1.039

 26.4

0.091

2.3

1.380

 725 2379 1.390 719 2359 1.44 694 2277 1.460 685 2247

110

1

 25

1.331

 33.8

1.307

 33.2

0.102

2.6

1.980

 505 1657 2.000 500 1640 2.06 485 1591 2.090 478 1568

80

11/4

 32

1.673

 42.5

1.650

 41.9

0.102

2.6

2.540

 394 1293 2.570 389 1276 2.64 379 1243 2.680 373 1224

61

11/2

 40

1.906

 48.4

1.882

 47.8

0.114

2.9

3.230

 310 1017 3.270 306 1004 3.35 298 978 3.400 294 965

51

2

 50

2.370

 60.2

2.346

 59.6

0.114

2.9

4.080

 245 804 4.150 241 791 4.22 237 778 4.300 233 764

37
21/2 65 2.991 76.0 2.961 75.2 0.124 3.2 5.710 175 574 5.830 172 564 5.89 170 558 6.020 166 545

27
3 80 3.492 88.7 3.461 87.9 0.124 3.2 6.720 149 489 6.890 145 476 6.93 144 472 7.100 141 463

24
4 100 4.484 113.9 4.449 113.0 0.142 3.6 9.750 103 338 10.000 100 328 10.03 100 328 10.280 97 318

16
M

E

D

I

U

M

(B)

 

 1/2 15 0.854 21.7 0.831 21.1 0.102 2.6 1.210 826 2710 1.220 820 2690 1.25 800 2625 1.260 794 2605 130
3/4 20 1.071 27.2 1.047 26.6 0.102 2.6 1.560 641 2103 1.570 637 2090 1.62 617 2024 1.640 610 2001 100
1 25 1.346 34.2 1.315 33.4 0.124 3.2 2.410 415 1362 2.430 412 1352 2.49 402 1319 2.510 398 1306 65
11/4 32 1.689 42.9 1.657 42.1 0.124 3.2 3.100 323 1060 3.130 319 1047 3.20 312 1024 3.230 310 1017 51
11/2 40 1.921 48.8 1.890 48.0 0.124 3.2 3.570 280 919 3.610 277 909 3.68 272 892 3.720 269 883 44
2 50 2.394 60.8 2.354 59.8 0.142 3.6 5.030 199 653 5.100 196 643 5.17 193 633 5.250 190 623 30
21/2 65 3.016 76.6 2.969 75.4 0.142 3.6 6.430 156 512 6.550 153 502 6.61 151 495 6.730 149 489 24
3 80 3.524 89.5 3.469 88.1 0.157 4.0 8.370 119 390 8.540 117 384 8.58 117 384 8.760 114 374 19
4 100 4.524 114.9 4.461 113.3 0.177 4.5 12.200 82 269 12.500 80 262 12.48 80 262 12.690 79 259 14
5 125 5.535 140.6 5.461 138.7 0.197 5.0 16.600 60 197 17.100 58 190 16.94 59 194 17.440 57 187 10
6 130 6.539 166.1 6.461 164.1 0.197 5.0 19.700 51 167 20.300 49 161 20.10 50 164 20.710 48 157 7
H

E

A

V

Y

(C)

 

 1/2 15 0.854 21.7 0.831 21.1 0.124 3.20 1.440 694 2277 1.450 690 2264 1.49 671 2202 1.500 667 2188 110
3/4 20 1.071 27.2 1.047 26.6 0.124 3.20 1.870 535 1755 1.880 532 1745 1.93 518 1700 1.950 513 1683 80
1 25 1.346 34.2 1.315 33.4 0.157 4.00 2.940 340 1115 2.960 338 1109 3.01 332 1089 3.040 329 1079 55
11/4 32 1.689 42.9 1.657 42.1 0.157 4.00 3.800 263 863 3.830 261 856 3.90 256 840 3.930 254 833 44
11/2 40 1.921 48.8 1.890 48.0 0.157 4.00 4.380 228 748 4.420 226 741 4.49 223 732 4.530 221 725 37
2 50 2.394 60.8 2.354 59.8 0.177 4.50 6.190 162 531 6.260 160 525 6.33 158 518 6.400 156 512 27
21/2 65 3.016 76.6 2.969 75.4 0.177 4.50 7.930 126 413 8.050 124 407 8.11 123 404 8.230 121 397 20
3 80 3.524 89.5 3.469 88.1 0.197 5.00 10.300 97 318 10.500 95 312 10.51 95 312 10.710 93 307 16
4 100 4.524 114.9 4.461 113.3 0.213 5.40 14.500 69 226 14.800 68 223 14.77 68 223 14.990 67 220 12
5 125 5.535 140.6 5.461 138.7 0.213 5.40 17.900 56 184 18.400 54 177 18.21 55 180 18.630 54 177 10
6 150 6.539 166.1 6.461 164.1 0.213 5.40 21.300 47 154 21.900 46 151 21.68 46 151 22.220 45 148 7
This standard is technically equivalent to the requirements of ISO 50 & ISO R65 published by the international organization for standardization (ISO).
Tolerances :  Thickness  :  Light  -08 %    
  Medium and Heavy     -10  
  Weight  :  Single Tube +10 % & -8 %  
    :  150 meters and above + 4%  
  Length :  6 meters :  6 meters  
 
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