52
T
a
b
le A
-2
Cast
Iro
n
Pip
e
St
an
d
a
rd
Class
es
In
sid
e
Di
amet
e
r (
ID)
an
d
O
u
ts
id
e Diam
et
er (
O
D)
in
In
ch
es
Nom
inal P
ip
e
Si
ze
Cla
ss A
Cla
ss B
Cla
ss C
Cla
ss D
Cla
ss E
Cla
ss F
Cla
ss G
Cla
ss H
ID O
D
ID O
D
ID O
D
ID O
D
ID O
D
ID O
D
ID O
D
ID O
D
3
4
6
8
10
3.80
4.80
6.90
9.05
11.1
0
3.02
3.96
6.02
8.13
10.1
0
3.96
5.00
7.10
9.05
11.1
0
3.12
4.10
6.14
8.03
9.96
3.96
5.00
7.10
9.30
11.4
0
3.06
4.04
6.08
8.18
10.1
6
3.96
5.00
7.10
9.30
11.4
0
3.00
3.96
6.00
8.10
10.0
4
7.22
9.42
11.6
0
6.06
8.10
10.1
2
7.22
9.42
11.6
0
6.00
8.10
10.0
0
7.38
9.60
11.8
4
6.08
8.10
10.1
2
7.38
9.60
11.8
4
6.00
8.00
10.0
0
12
14
16
18
20
13.2
0
15.3
0
17.4
0
19.5
0
21.6
0
12.1
2
14.1
6
16.2
0
18.2
2
20.2
6
13.2
0
15.3
0
17.4
0
19.5
0
21.6
0
11.9
6
13.9
8
16.0
0
18.0
0
20.0
0
13.5
0
15.6
5
17.8
0
19.9
2
22.0
6
12.1
4
14.1
7
16.2
0
18.1
8
20.2
2
13.5
0
15.6
5
17.8
0
19.9
2
22.0
6
12.0
0
14.0
1
16.0
2
18.0
0
20.0
0
13.7
8
15.9
8
18.1
6
20.3
4
22.5
4
12.1
4
14.1
8
16.2
0
18.2
0
20.2
4
13.7
8
15.9
8
18.1
6
20.3
4
22.5
4
12.0
0
14.0
0
16.0
0
18.0
0
20.0
0
14.0
8
16.3
2
18.5
4
20.7
8
23.0
2
12.1
4
14.1
8
16.1
8
18.2
2
20.2
4
14.0
8
16.3
2
18.5
4
20.7
8
23.0
2
12.0
0
14.0
0
16.0
0
18.0
0
20.0
0
24
30
36
42
48
25.8
0
31.7
4
37.9
6
44.2
0
50.5
0
24.2
8
28.9
8
35.9
8
42.0
0
47.9
8
25.8
0
32.0
0
38.3
0
44.5
0
50.8
0
24.0
2
29.9
4
36.0
0
41.9
4
47.9
6
26.3
2
32.4
0
38.7
0
45.1
0
51.4
0
24.2
2
30.0
0
35.9
8
42.0
2
47.9
8
26.3
2
32.7
4
39.1
6
45.5
8
51.9
8
24.0
0
30.0
0
36.0
0
42.0
2
48.0
0
26.9
0
33.1
0
39.6
0
24.2
8
30.0
0
36.0
0
26.9
0
33.4
6
40.0
4
24.0
0
30.0
0
36.0
0
27.7
6
24.2
6
27.7
6
24.0
0
54
60
72
84
56.6
6
62.8
0
75.3
4
87.5
4
53.9
6
60.0
2
72.1
0
84.1
0
57.1
0
63.4
0
76.0
0
88.5
4
54.0
0
60.0
6
72.1
0
84.1
0
57.8
0
64.2
0
72.1
0
84.1
0
57.8
0
64.2
0
76.8
8
54.0
0
60.2
0
72.1
0
58.4
0
64.8
2
53.9
4
60.0
6
NOT
E:
Fo
r pipes
with c
e
m
ent
lin
in
gs
, reduc
e
the
pi
pe
ID b
y t
w
o
tim
e
s the l
in
ing
th
ic
knes
s. Standar
d
an
d d
o
uble c
e
m
ent l
in
ing
th
ic
kn
e
sses
lis
te
d
in T
able
A-3.
