SR. NO.
NOMINAL DIAMETER IN mm
CLASS A
CLASS B
CLASS C
WALL THICKNESS IN mm
WEIGHT PER RM
WALL THICKNESS IN mm
WEIGHT PER RM
WALL THICKNESS IN mm
WEIGHT PER RM
01
80 mm
 7.2 mm
14.7 kg
7.9 mm
16.0 kg
8.6 mm
17.3 kg
02
100 mm
7.5 mm
18.6 kg
8.3 mm
20.5 kg
9.0 mm
22.0 kg
03
125 mm
7.9 mm
24.2 kg
8.7 mm
26.4 kg
9.5 mm
28.7 kg
04
150 mm
8.3 mm
30.1 kg
9.2 mm
33.2 kg
10.0 mm
35.9 kg