NORTH AMERICAN PIPE SCHEDULES
Cast Iron Pipe, Standard Classes, 3…10 inch
Size
in.
Class
in.
A B C D E F G H
3
OD 3.80 3.96 3.96 3.96
— — — —Wall 0.39 0.42 0.45 0.48
ID 3.02 3.12 3.06 3.00
4
OD 4.80 5.00 5.00 5.00
— — — —Wall 0.42 0.45 0.48 0.52
ID 3.96 4.10 4.04 3.96
6
OD 6.90 7.10 7.10 7.10 7.22 7.22 7.38 7.38
Wall 0.44 0.48 0.51 0.55 0.58 0.61 0.65 0.69
ID 6.02 6.14 6.08 6.00 6.06 6.00 6.08 6.00
8
OD 9.05 9.05 9.30 9.30 9.42 9.42 9.60 9.60
Wall 0.46 0.51 0.56 0.60 0.66 0.66 0.75 0.80
ID 8.13 8.03 8.18 8.10 8.10 8.10 8.10 8.00
10
OD 11.10 11.10 11.40 11.40 11.60 11.60 11.84 11.84
Wail 0.50 0.57 0.62 0.68 0.74 0.80 0.86 0.92
ID 10.10 9.96 10.16 10.04 10.12 10.00 10.12 10.00
Table 8: Cast iron pipe, standard classes, 3…10 inch
Steel, Stainless Steel, PVC Pipe, Standard Classes
NPS
in.
OD
in.
SCH 60 X STG. SCH 80 SCH 100 SCH 120/140 SCH 180
ID
in.
Wall
in.
ID
in.
Wall
in.
ID
in.
Wall
in.
ID
in.
Wall
in.
ID
in.
Wall
in.
ID
in.
Wall
in.
1 1.315
—
0.957 0.179 0.957 0.179
— —
0.815 0.250
1.25 1.660 1.278 0.191 1.278 0.191 1.160 0.250
1.5 1.900 1.500 0.200 1.500 0.200 1.338 0.281
2 2.375 1.939 0.218 1.939 0.218 1.687 0.344
2.5 2.875 2.323 0.276 2.323 0.276 2.125 0.375
3 3.500 2.900 0.300 2.900 0.300 2.624 0.438
3.5 4.000
—
3.364 0.318 3.364 0.318
—
— —
4 4.500 3.826 0.337 3.826 0.337 3.624 0.438 3.438 0.531
5 5.563 4.813 0.375 4.813 0.375 4.563 0.500 4.313 0.625
6 6.625 5.761 0.432 5.761 0.432 5.501 0.562 5.187 0.719
8 8.625 7.813 0.406 7.625 0.500 7.625 0.500 7.437 0.594 7.178 0.719 6.183 1.221
10 10.75 9.750 0.500 9.75 0.500 9.562 0.594 9.312 0.719 9.062 0.844 8.500 1.125
Table 9: Steel, stainless steel, PVC pipe, standard classes
North American Pipe Schedules
Page 59 October 2019 TTM-UM-02222-EN-04