53
T
a
b
le A
-3
Du
ct
ile I
ron
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
Ins
ide
Di
am
eter
Cem
ent Lin
ing
(
see note)
Nom
inal
Pip
e
Si
ze
OD
Cla
ss
50
Cla
ss
51
Cla
ss
52
Cla
ss
53
Cla
ss
54
Cla
ss
55
Cla
ss
56
Stan
dar
d
T
h
ic
kn
e
ss
Doub
le
T
h
ic
kn
e
ss
3
4
6
8
10
12
3.96
4.80
6.90
9.05
11.1
0
13.2
0
6.40
8.51
10.5
2
12.5
8
3.46
4.28
6.34
8.45
10.4
6
12.5
2
3.40
4.22
3.28
6.39
10.4
0
12.4
6
3.34
4.16
6.22
8.33
10.3
4
12.4
0
3.28
4.10
6.16
8.27
10.2
8
12.3
4
3.22
4.04
6.10
8.21
10.2
2
12.2
8
3.16
3.98
6.04
8.15
10.1
6
12.2
2
0.12
5
0.25
0
14
16
18
20
24
15.3
0
17.4
0
19.5
0
21.6
0
25.8
0
14.6
4
16.7
2
18.8
0
20.8
8
25.0
4
14.5
8
16.6
6
18.7
4
20.8
2
24.9
8
14.5
2
16.6
0
18.6
8
20.7
6
24.9
2
14.4
6
16.5
4
18.6
2
20.7
0
24.8
6
14.4
0
16.4
8
18.5
6
20.6
4
24.8
0
14.3
4
16.4
2
18.5
0
20.5
8
24.7
4
14.2
8
16.3
6
18.4
4
20.5
2
24.6
8
0.18
75
0.37
5
30
36
42
48
54
32.0
0
38.3
0
44.5
0
50.8
0
57.1
0
31.2
2
37.4
4
43.5
6
49.7
8
55.9
6
31.1
4
37.3
4
43.4
4
49.6
4
55.8
0
31.0
6
37.0
6
43.3
2
49.5
0
55.4
8
30.9
8
37.1
4
43.2
0
49.3
6
55.4
8
30.9
0
37.0
4
43.0
8
49.2
2
55.3
2
30.8
2
36.9
4
42.9
6
49.0
8
55.1
6
30.7
4
36.8
4
42.8
4
48.9
4
55.0
0
0.25
0
0.50
0
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 lis
ted ab
ov
e.