NB 
NB 
0D 
Light Medium
Heavy
Thick 
Weight
Thick
Weight
Thick
Weight
MM
IN
MM
MM
Kg/mtr.
MM
Kg/mtr.
MM
Kg/mtr.
6mm
1/8"
10.32
1.80
0.361
2.00
0.407
2.65
0.493
8mm
1/4"
13.49
1.80
0.517
2.35
0.650
2.90
0.769
10mm
3/8"
17.10
1.80
0.674
2.35
0.852
2.90
1.020
15mm
1/2"
21.43
2.00
0.952
2.65
1.122
3.25
1.450
20mm
3/4"
27.20
2.35
1.410
2.65
1.580
3.25
1.900
25mm
   1"
33.80
2.65
2.010
3.25
2.440
4.05
2.970
32mm
11/4"
42.90
2.65
2.580
3.25
3.140
4.05
3.840
40mm
11/2"
48.40
2.90
3.250
3.25
3.610
4.05
4.430
50mm
     2"
60.30
2.90
4.110
3.65
5.100
4.47
6.170
65mm
21/2'
76.20
3.25
5.840
3.65
6.610
4.47
7.900
80mm
    3"
88.90
3.25
6.810
4.05
8.470
4.85
10.100
100mm
    4"
114.30
3.65
9.890
4.50
12.100
5.40
14.400
125mm
    5"
139.70
   .....
  ......
4.85
16.200
5.40
17.800
150mm
    6"
165.10
   ......
  .......
4.85
19.200
5.40
21.200
WallThick.
mm
7"NB
193.7
Kg/mtr
8"NB
219.1
Kg/mtr
10"NB
273
Kg/mtr
12"NB
323.7
Kg/mtr
14"NB
355.6
Kg/mtr
16"NB
406.4
Kg/mtr
18"NB
454
Kg/mtr
20"NB
508
Kg/mtr
4.85
22.59
25.62
32.07
38.13
   ......
  ........
  .......
  .......
5.20
24.17
27.43
34.34
40.84
   ......
  ........
  ........
  ........
5.60
26.00
29.28
36.93
43.93
48.11
  ........
  .........
  ..........
6.00
27.88
31.53
39.50
47.02
51.49
61.00
69.00
   ........
6.35
29.34
33.28
41.73
49.67
54.43
62.35
70.50
78.50
7.01
32.27
36.76
46.43
55.45
61.82
69.04
  ......
......
7.94
   .....
41.00
50.95
61.85
67.98
77.92
87.80
.......
8.18
  ......
42.56
53.42
65.12
  ......
  ......
  ......
  ......
9.53
  ......
51.50
60.24
73.75
81.21
93.13
105.00
117.00
12.70
......
.....
......
......
107.28
123.30
139.00
 
155.00
-- --