TECHNICAL INFO :

E.R.W. Pipe

To IS 1239 (Part I) 1979 : BS 1387 : 1967

MILD STEEL BLACK AND GALVANISED PIPES. P.E./S. ENDS.
SIZE

1/4" NB to 6" NB in LIGHT, MEDIUM & HEAVY DUTY

MFGS

ITC (TATA), ZENITH, JINDAL, PRAKASH, GUJARAT etc.

Specifications

ISS 1239, 1161, BSS 1387, ASTM A-120 API 5L

IS : 1239 Part I
Nominal Bore Outside Diameter Thickness Plain End
max. min.
  in in mm in mm in mm 1b/ft. Kg/ft. Kg/m
Light 1/8 .396 10.1 .387 9.7 .072 1.8 .243 .110 .361
1/4 .532 13.6 .518 13.2 .072 1.8 .347 .157 .517
3/8 .671 17.1 .656 16.7 .072 1.8 .453 .205 .674
1/2 .841 21.4 .825 21.0 .080 2.0 .640 .290 .952
3/4 1.059 26.9 1.041 26.4 .092 2.35 .944 .428 1.41
1 1.328 33.8 1.309 32.2 .104 2.65 1.35 .612 2.01
1-1/4 1.670 42.5 1.650 41.9 .104 2.65 1.73 .785 1.58
1-1/2 1.903 48.4 1.882 47.8 .116 2.9 2.19 .993 3.25
2 2.370 60.2 2.347 59.6 .116 2.9 2.76 1.25 4.11
2-1/2 2.991 76.0 2.960 75.2 .128 3.25 3.90 1.77 5.80
3 3.491 88.7 3.460 87.9 .128 3.25 4.58 2.08 6.81
4 4.481 113.9 4.450 113.0 .144 3.65 6.64 3.01 9.89
Medium 1/8 .411 10.4 .386 9.8 .080 2.0 .273 .124 .407
1/4 .547 13.9 .522 13.3 .092 2.35 .437 .198 .650
3/8 .685 17.4 .660 16.8 .092 2.35 .573 .260 .852
1/2 .856 21.7 .831 21.1 .104 2.65 .822 .373 1.22
3/4 1.072 27.2 1.047 26.6 .104 2.65 1.6 .481 1.58
1 1.346 34.2 1.316 33.4 .128 3.25 1.64 .744 2.44
1-1/4 1.687 42.9 1.657 42.1 .128 3.25 1.64 .744 2.44
1-1/2 1.919 48.8 1.889 48.0 .128 3.25 2.11 .957 3.14
2 2.394 60.8 2.354 59.8 .144 3.65 3.42 1.55 5.10
2-1/2 3.014 76.6 2.969 75.4 .144 3.65 4.38 1.99 6.51
3 3.524 89.5 3.469 88.1 .160 4.05 5.69 2.58 8.47
4 4.524 114.9 4.459 113.3 .176 4.5 8.14 3.69 12.1
5 5.534 140.6 5.459 138.7 .192 4.85 10.9 4.94 16.2
6 6.539 166.1 6.459 164.1 .192 4.85 12.9 5.85 19.2
Heavy 1/8 .411 10.4 .386 9.8 .104 2.65 .331 .150 .493
1/4 .547 13.9 .522 13.3 .116 2.9 .512 .235 .769
3/8 .685 17.4 .660 16.8 .116 2.9 .686 .311 1.02
1/2 .856 21.7 .831 21.1 .128 3.25 .977 .443 1.45
3/4 1.072 27.2 1.047 26.6 .128 3.25 .977 .443 1.45
1 1.346 34.2 1.316 33.4 .160 4.05 2.00 .907 2.97
1-1/4 1.687 42.9 1.657 42.1 .160 4.05 2.00 .907 2.97
1-1/2 2.394 60.8 2.354 59.8 .176 4.5 4.14 1.89 6.17
2 2.394 60.8 2.354 59.8 .176 4.5 4.14 1.89 6.17
2-1/2 3.014 76.6 2.969 75.4 .176 4.5 5.31 2.41 7.90
3 3.524 89.5 3.469 88.1 .192 4.85 6.76 3.07 10.1
4 4.524 114.9 4.459 113.3 .212 5.4 9.71 4.40 14.4
5 5.534 140.6 5.459 138.7 .212 5.4 12.0 5.44 17.8
6 6.539 166.1 6.459 164.1 .212 5.4 14.3 6.49 21.2

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