Ductile Iron pipes made by Electrosteel Castings Ltd. conform to the following Indian and International standards:

IS:8329 / IS:9523, ISO : 2531 / ISO : 7186, BS EN : 545 / BS EN 598, AWWA - C 151/C 115

Ductile Iron Pipe Dimension

Basic Dimension of Pipes – Preferred 'Ç' Class & K9

PRESSURE CLASS THICKNESS CLASS
Nominal Dia.
DN (mm)
External Dia.
DE (mm)
Tol. on
DE (mm)
Preferred
'C' class
Preferred class
Nom Thickness (mm)
Nominal Thickness K9 (mm)
80 98 +1/-2.7 C40 4.4 6.0
100 118 +1/-2.8 C40 4.4 6.0
150 170 +1/-2.9 C40 4.5 6.0
200 222 +1/-3 C40 4.7 6.3
250 274 +1/-3.1 C40 5.5 6.8
300 326 +1/-3.3 C40 6.2 7.2
350 378 +1/-3.4 C30 6.3 7.7
400 429 +1/-3.5 C30 6.5 8.1
450 480 +1/-3.6 C30 6.9 8.6
500 532 +1/-3.8 C30 7.5 9.0
600 635 +1/-4 C30 8.7 9.9
700 738 +1/4.3 C25 8.8 10.8
800 842 +1/4.5 C25 9.6 11.7
900 945 +1/-4.8 C25 10.6 12.6
1000 1048 +1/-5 C25 11.6 13.5

* Note: Preferred 'C' class as per ISO2531/2009