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Steel Pipe Schedule Chart

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Related: Sanitary Tube, Fitting Guide, Gasket Guide, Stainless Grades

Size
Inches

O.D.
Inches

 Schedule 5 Schedule 10 Schedule 40 Schedule 80

I.D.

Wall
Thickness

I.D.

Wall
Thickness

I.D.

Wall
Thickness

I.D.

Wall
Thickness
1/8 0.405 .0335 0.035 0.307 0.049 0.269 0.068 0.215 0.095
1/4 0.540 0.442 0.049 0.410 0.065 0.364 0.088 0.302 0.119
3/8 0.675 0.577 0.049 0.545 0.065 0.493 0.091 0.423 0.126
1/2 0.840 0.710 0.065 0.674 0.083 0.622 0.109 0.546 0.147
3/4 1.050 0.920 0.065 0.884 0.083 0.824 0.113 0.742 0.154
1 1.315 1.185 0.065 1.097 0.109 1.049 0.133 0.957 0.179
1 1/4 1.660 1.530 0.065 1.442 0.109 1.380 0.140 1.278 0.191
1 1/2 1.900 1.770 0.065 1.682 0.109 1.610 0.145 1.500 0.200
2 2.375 2.245 0.065 2.157 0.109 2.067 0.154 1.939 0.218
2 1/2 2.875 2.709 0.083 2.635 0.120 2.469 0.203 2.323 0.276
3 3.500 3.334 0.083 3.260 0.120 3.068 0.216 2.900 0.300
3 1/2 4.000 3.834 0.083 3.760 0.120 3.548 0.226 3.364 0.318
4 4.500 4.334 0.083 4.260 0.120 4.026 0.237 3.826 0.337
5 5.563 5.345 0.109 5.295 0.134 5.047 0.258 4.813 0.375
6 6.625 6.407 0.109 6.357 0.134 6.065 0.280 5.761 0.432
8 8.625 8.407 0.109 8.329 0.148 7.981 0.322 7.625 0.500