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Technical Details
Properties of Ductile Iron Pipe
| Properties |
Ductile Iron Pipe |
| Tensile strength |
Min. 420 MPa |
| Elongation (min) at break |
10% |
| Modulus of Elasticity |
1.7 x 1010 Kg/M2 |
| Hardness |
Max. 230 BHN |
Pipe Dimension
Basic Dimension of pipes
Class K7 & K9
 |
 |
| Basic Dimension of Pipes |
Thickness of Ductile Iron Pipes |
| |
|
| |
|
|
PRESSURE CLASS |
THICKNESS CLASS |
Nominal
Dia.
DN
mm |
External
Dia.
DE
mm |
Tol. on
DE
mm |
Preferred
'C' class |
Preferred
class Nom
Thickness |
Nominal
Thickness
K9
mm |
ECL
Works Test
Pressure
K9
(Kg/cm) |
| 80 |
98 |
+1/-2.7 |
C40 |
4.4 |
6.0 |
60 |
| 100 |
118 |
+1/-2.8 |
C40 |
4.4 |
6.0 |
60 |
| 150 |
170 |
+1/-2.9 |
C40 |
4.5 |
6.0 |
60 |
| 200 |
222 |
+1/-3 |
C40 |
4.7 |
6.3 |
60 |
| 250 |
274 |
+1/-3.1 |
C40 |
5.5 |
6.8 |
60 |
| 300 |
326 |
+1/-3.3 |
C40 |
6.2 |
7.2 |
60 |
| 350 |
378 |
+1/-3.4 |
C30 |
6.3 |
7.7 |
50 |
| 400 |
429 |
+1/-3.5 |
C30 |
6.5 |
8.1 |
50 |
| 450 |
480 |
+1/-3.6 |
C30 |
6.9 |
8.6 |
50 |
| 500 |
532 |
+1/-3.8 |
C30 |
7.5 |
9.0 |
50 |
| 600 |
635 |
+1/-4 |
C30 |
8.7 |
9.9 |
50 |
| 700 |
738 |
+1/4.3 |
C25 |
8.8 |
10.8 |
42 |
| 800 |
842 |
+1/4.5 |
C25 |
9.6 |
11.7 |
42 |
| 900 |
945 |
+1/-4.8 |
C25 |
10.6 |
12.6 |
42 |
| 1000 |
1048 |
+1/-5 |
C25 |
11.6 |
13.5 |
42 |
Note : Preferred 'C' class as per ISO2531/2009
Dimensions of Flange
 |
 |
| DN |
PN-10 |
PN-16 |
| D |
E |
C |
b |
n |
Dia (d) |
Metric |
D |
E |
C |
b |
n |
Dia (d) |
Metric |
Nom.
Dia. |
Out
side
Dia |
Dia. of
raised
Face |
Pitch
Circle
Dia. |
Flange
Width |
No.
of
Bolts |
Bolt
Hole
Dia. |
Bolt
Size |
Out
side
Dia |
Dia. of
raised
Face |
Pitch
Circle
Dia. |
Flange
Width |
No.
of
Bolts |
Bolt
Hole
Dia. |
Bolt
Size |
| 80 |
200 |
132 |
160 |
16.0 |
8 |
19 |
M16 |
200 |
132 |
160 |
16.0 |
8 |
19 |
M16 |
| 100 |
220 |
156 |
180 |
16.0 |
8 |
19 |
M16 |
220 |
156 |
180 |
16.0 |
8 |
19 |
M16 |
| 125 |
250 |
184 |
210 |
16.0 |
8 |
19 |
M16 |
250 |
184 |
210 |
16.0 |
8 |
19 |
M16 |
| 150 |
285 |
211 |
240 |
16.0 |
8 |
23 |
M20 |
285 |
211 |
240 |
16.0 |
8 |
23 |
M20 |
| 200 |
340 |
266 |
295 |
17.0 |
12 |
23 |
M20 |
340 |
266 |
295 |
17.0 |
12 |
23 |
M20 |
| 250 |
395 |
319 |
350 |
19.0 |
12 |
23 |
M20 |
400 |
319 |
355 |
19.0 |
12 |
28 |
M24 |
| 300 |
445 |
370 |
400 |
20.5 |
12 |
23 |
M20 |
455 |
370 |
410 |
20.5 |
12 |
28 |
M24 |
| 350 |
505 |
429 |
460 |
20.5 |
16 |
23 |
M20 |
520 |
429 |
470 |
22.5 |
16 |
28 |
M24 |
| 400 |
565 |
480 |
515 |
20.5 |
16 |
28 |
M24 |
580 |
480 |
525 |
24.0 |
16 |
31 |
M27 |
| 450 |
615 |
530 |
565 |
21.0 |
20 |
28 |
M24 |
640 |
548 |
585 |
26.0 |
20 |
31 |
M27 |
| 500 |
670 |
582 |
620 |
22.5 |
20 |
28 |
M24 |
715 |
609 |
650 |
27.5 |
20 |
34 |
M30 |
| 600 |
780 |
682 |
725 |
25.0 |
20 |
31 |
M27 |
840 |
720 |
770 |
31.0 |
20 |
37 |
M33 |
| 700 |
895 |
794 |
840 |
27.5 |
24 |
31 |
M27 |
910 |
794 |
840 |
34.5 |
24 |
37 |
M33 |
| 750 |
960 |
857 |
900 |
29.0 |
24 |
31 |
M27 |
970 |
857 |
900 |
36.0 |
24 |
37 |
M33 |
| 800 |
1015 |
901 |
950 |
30.0 |
24 |
34 |
M30 |
1025 |
901 |
950 |
38.0 |
24 |
40 |
M36 |
| 900 |
1115 |
1001 |
1050 |
32.5 |
28 |
34 |
M30 |
1125 |
1001 |
1050 |
41.0 |
28 |
40 |
M36 |
| 1000 |
1230 |
1112 |
1160 |
35.0 |
28 |
37 |
M33 |
1255 |
1112 |
1170 |
45.0 |
28 |
43 |
M39 |
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