PULSAR MEASUREMENT 
 
69  
APPENDIX D – Pipe Charts  
 
 
Ductile Ir on Pipe - Standard Classes
Size OUTSIDE Class Class Class C lass Class C lass C lass CEMENT LIN IN G
IN CH D IA. 5 0 5 1 5 2 5 3 54 5 5 56 **S TD ** DOUBLE
INCH WA LL I.D. WA LL I.D. WALL I.D. WA LL I.D. WA LL I.D. WA LL I.D. WALL I.D. THIC KNES S TH IC KN ESS
3 3.96 0.2 5 3 .4 6 0.2 8 3.40 0.31 3.3 4 0 .3 4 3.2 8 0.37 3.22 0.4 1 3 .1 4
4 4.80 0.2 6 4 .2 8 0.2 9 4.22 0.32 4.1 6 0 .3 5 4.1 0 0.38 4.04 0.4 4 3 .9 3
6 6.90 0.25 6.40 0 .2 8 6.3 4 0.3 1 6.28 0.34 6.2 2 0.3 7 6.1 6 0.40 6.10 0.4 3 6.0 4 .125 .250
8 9.05 0.27 8.51 0 .3 0 8.4 5 0.3 3 8.39 0.36 8.3 3 0.3 9 8.2 7 0.42 8.21 0.4 5 8.1 5
10 11.1 0 0.39 10 .3 2 0 .3 2 10.4 6 0.3 5 10.4 0 0.3 8 10.3 4 0.4 1 10.28 0 .4 4 10.22 0 .4 7 10.16
12 13.2 0 0.31 12 .5 8 0 .3 4 12.5 2 0.3 7 12.4 6 0.4 0 12.4 0 0.4 3 12.34 0 .4 6 12.28 0 .4 9 12.22
14 15.3 0 0.33 14 .6 4 0 .3 6 14.5 8 0.3 9 14.5 2 0.4 2 14.4 6 0.4 5 14.40 0 .4 8 14.34 0 .5 1 14.28
16 17.4 0 0.34 16 .7 2 0 .3 7 16.6 6 0.4 0 16.6 0 0.4 3 16.5 4 0.4 6 16.48 0 .4 9 16.42 0 .5 2 16.36
18 19.5 0 0.35 18 .8 0 0 .3 8 18.7 4 0.4 1 18.6 8 0.4 4 18.6 2 0.4 7 18.56 0 .5 0 18.50 0 .5 3 18.44 .1 875 .375
20 21.6 0 0.36 20 .8 8 0 .3 9 20.8 2 0.4 2 20.7 6 0.4 5 20.7 0 0.4 8 20.64 0 .5 1 20.58 0 .5 4 20.52
24 25.8 0 0.38 25 .0 4 0 .4 1 24.9 8 0.4 4 24.9 2 0.4 7 24.8 6 0.5 0 24.80 0 .5 3 24.74 0 .5 6 24.68
30 32.0 0 0.39 31 .2 2 0 .4 3 31.1 4 0.4 7 31.0 6 0.5 1 30.9 8 0.5 5 30.90 0 .5 9 30.82 0 .6 3 30.74
36 38.3 0 0.43 37 .4 4 0 .4 8 37.3 4 0.6 2 37.0 6 0.5 8 37.1 4 0.6 3 37.04 0 .6 8 36.94 0 .7 3 36.84
42 44.5 0 0.47 43 .5 6 0 .5 3 43.4 4 0.5 9 43.3 2 0.6 5 43.2 0 0.7 1 43.08 0 .7 7 42.96 0 .8 3 42.84 .250 .500
48 50.8 0 0.51 49 .7 8 0 .5 8 49.6 4 0.6 5 49.5 0 0.7 2 49.3 6 0.7 9 49.22 0 .8 6 49.08 0 .9 3 48.94
54 57.1 0 0.57 55 .9 6 0 .6 5 55.8 0 0.7 3 55.6 4 0.8 1 55.4 8 0.8 9 55.32 0 .9 7 55.16 1 .0 5 55.00
**R EDUCE I.D . BY DIMEN SION SH OWN