TC Wilson
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TUBE CLEANING

REFERENCE CHART

American Standard Welded and Seamless Steel Pipe

Pipe Pipe Schedules (All Dimensions in Inches)
Size OD Wall ID 5 10 20 30 STANDARD 40 60 EX. HVY. 80 100 120 140 160 DBLE. EX. HVY.
1/8 .405 Wall ID .035 .049     .068   .095          
Wall ID .335 .307     .269   .215          
1/4 .540 Wall ID .049 .065     .088   .119          
Wall ID .442 .410     .364   .302          
3/8 .675 Wall ID .049 .065     .091   .126          
Wall. ID .577 .545     .493   .423          
1/2 .840 Wall ID .065 .083     .109   .147       .187 .294
Wall ID .710 .674     .622   .546       .466 .252
3/4 1.050 Wall ID .065 .083     .113   .154       .218 .308
Wall ID .920 .884     .824   .742       .614 .434
1 1.315 Wall ID .065 .109     .133   .179       .250 .358
Wall ID 1.185 1.097     1.049   .957       .815 .599
1-1/4 1.660 Wall ID .065 .109     .140   .191       .250 .382
Wall ID 1.530 1.442     1.380   1.278       1.160 .896
1-1/2 1.900 Wall ID .065 .109     .145   .200       .281 .400
Wall ID 1.770 1.682     1.610   1.500       1.338 1.100
2 2.375 Wall ID .065 .109     .154   .218       .343 .436
Wall ID 2.245 2.157     2.067   1.939       1.689 1.503
2-1/2 2.875 Wall ID .083 .120     .203   .276       .375 .552
Wall ID 2.709 2.635     2.469   2.323       2.125 1.771
3 3.500 Wall ID .083 .120     .216   .300       .438 .600
Wall ID 3.334 3.260     3.068   2.900       2.624 2.300
3-1/2 4.000 Wall ID .083 .120     .226   .318         .636
Wall ID 3.834 3.760     3.548   3.364         2.728
4 4.500 Wall ID .083 .120     .237 .218 .337   .438   .531 .674
Wall ID 4.334 4.260     4.026 4.064 3.826   3.624   3.438 3.152
4-1/2 5.000 Wall ID   .134     .247   .355         .710
Wall ID   4.732     4.506   4.290         3.580
5 5.563 Wall ID .109 .134     .258   .375   ,500   .625 .750
Wall ID 5.345 5.295     5.047   4.813   4.563   4.313 4.063
6 6.625 Wall ID .109 .134   .250 .280   .432   .562   .718 .864
Wall ID 6.407 6.357   6.125` 6.065   5.761   5.501   5.189 4.897
7 7.625 Wall ID         .301   .500         .875
Wall ID         7.023   6.625         5.875
8 8.625 Wall ID .109 .148 .250 .277 .322 .406 .500 .593 .718 .812 .906 .875
Wall ID 8.407 8.329 8.125 8.071 7.981 7.813 7.625 7.439 7.189 7.001 6.813 6.875
10 10.750 Wall ID .134 .165 .250 .307 .365 .500 .500 .593 .718 .843 1.000 1.125  
Wall ID 10.482 10.420 10.250 10.136 10.020 9.750 9.750 9.564 9.314 9.064 8.750 8.500  
12 12.750 Wall ID .165 .180 .250 .330 .375 .406 .562 .500 .687 .843 1.000 1.125 1.312  
Wall ID 12.420 12.390 12.250 12.090 12.000 11.938 11.626 11.750 11.376 11.064 10.750 10.500 10.126  
14 14.000 Wall ID   .250 .312 .375 .375 .437 .594 .500 .750 .937 1.094 1.250 1.406  
Wall ID   13.500 13.376 13.250 13.250 13.126 12.812 13.000 12.500 12.126 11.812 11.500 11.188  
16 16.000 Wall ID   .250 .312 .375 .375 .500 .656 .500 .843 1.031 1.218 1.437 1.593  
Wall ID   15.500 15.376 15.250 15.250 15.000 14.688 15.000 14.314 13.938 13.564 13.126 12.814  
18 18.000 Wall ID   .250 .312 .438 .375 .562 .750 .500 .937 1.156 1.375 1.562 1.781  
Wall ID   17.500 17.376 17.124 17.250 16.876 16.500 17.000 16.126 15.688 15.250 14.876 14.438  
20 20.000 Wall ID   .250 .375 .500 .375 .593 .812 .500 1.031 1.280 1.500 1.750 1.968  
Wall ID   19.500 19.250 19.000 19.250 18.814 18.376 19.000 17.938 17.440 17.000 16.500 16.064  
24 24.000 Wall ID   .250 .375 .562 .375 .687 .969 .500 1.218 1.531 1.812 2.062 2.343  
Wall ID   25.500 23.250 22.876 23.250 22.626 22.062 23.000 21.564 20.938 20.376 19.876 19.314