Standard Pipe Schedules Pipe Sizes Chart Table Data

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The following chart gives standard pipe schedule or pipes sizes as given by ANSI / ASME B36.10M and API 5L . Data given in based on the NPS Tables given by ANSI B36.10M and includes Pipe wall thickness, outside diameter, nominal diameter.

ANSI - American National Standards Institute
ASME - American Society of Mechanical Engineers
API = American Petroleum Institute
NPS = Nominal Pipe Size
O.D. =. Outside Diameter
E.H. = Extra Heavy
Dbl. = Double
Std. = Standard

Pipe size is specified by two designations: a nominal pipe size (NPS) for diameter based on inches, and a schedule (Sched. or Sch.) for wall thickness. NPS is often incorrectly called National Pipe Size, due to confusion with national pipe thread (NPT).

The European (ISO) designation equivalent to NPS is DN (diamètre nominal/nominal diameter/Durchmesser nach Norm), in which sizes are measured in millimetres. The term NB (nominal bore) is also frequently used interchangeably with NPS

 

Standard Pipe Schedules (40, 80, 160, etc..) Related Resources --> Bottom of this webpage

Nom.

O.D. Inches
PIPE SCHEDULES
WALL THICKNESS (
Inches)
5s 5 10s 10 20 30 40s & Std 40
1/8
.405
  .035  .049  .049    .068  .068
1/4
.540
  .049  .065  .065    .088  .088 
3/8
.675
  .049  .065  .065    .091  .091 
1/2
.840
.065  .065  .083  .083    .109  .109 
3/4
1.050
.065  .065  .083  .083    .113  .113 
1
1.315
.065  .065  .109  .109    .133  .133 
1 1/4
1.660
.065  .065  .109  .109    .140  .140 
1 1/2
1.900
.065  .065  .109  .109    .145  .145 
2
2.375
.065  .065  .109  .109    .154  .154 
2 1/2
2.875
.083  .083  .120  .120    .203  .203 
3
3.500
.083  .083  .120  .120    .216  .216 
3 1/2
4.000
.083  .083  .120  .120    .226  .226 
4
4.500
.083  .083  .120  .120    .237  .237 
4 1/2
5.000
  .247   
5
5.563
.109  .109  .134  .134    .258  .258 
6
6.625
.109  .109  .134  .134    .280  .280 
7
7.625
  .301   
8
8.625
.109  .109  .148  .148  .250  .277  .322  .322 
9
9.625
  .342   
10
10.750
.134  .134  .165  .165  .250  .307  .365  .365 
11
11.750
  .375   
12
12.750
.156  .165  .180  .180  .250  .330  .375  .406 
14
14.000
.156    .188  .250  .312  .375  .375  .437 
16
16.000
.165    .188  .250  .312  .375  .375  .500 
18
18.000
.165    .188  .250  .312  .437  .375  .562 
20
20.000
.188    .218  .250  .375  .500  .375  .593 
24
24.000
.218    .250  .250  .375  .562  .375  .687 
26
26.000
  .312  .500    .375   
28
28.000
  312  .500  .625  .375   
30
30.000
.250    .312  .312  .500  .625  .375   
32
32.000
  .312  .500  .625  .375  .688 
34
34.00
  .312  .500  .625  .375  .688 
36
36.000
  .312    .625  .375  .750 
42
42.000
    .375   
48
48.000
        .375 

 

Nom.

O.D. Inches
PIPE SCHEDULES
WALL THICKNESS (
Inches)
60 80s & E.H. 80 100 120 140 160 Dbl. E.H.
(XXH)
1/8
.405
  .095  .095   
1/4
.540
  .119  .119   
3/8
.675
  .126  .126   
1/2
.840
  .147  .147    .187  .294 
3/4
1.050
  .154  .154    .218  .308 
1
1.315
  .179  .179    .250  .358 
1 1/4
1.660
  .191  .191    .250  .382 
1 1/2
1.900
  .200  .200    .281  .400 
2
2.375
  .218  .218    .343  .436 
2 1/2
2.875
  .276  .276    .375  .552 
3
3.500
  .300  .300    .437  .600 
3 1/2
4.000
  .318  .318    .636 
4
4.500
.281  .337  .337    .437    .531  .674 
4 1/2
5.000
.355    .710 
5
5.563
  .375  .375    .500    .625  .750 
6
6.625
  .432  .432    .562    .718  .864 
7
7.625
.500    .875 
8
8.625
.406  .500  .500  .593  .718  .812  .906  .875 
9
9.625
.500   
10
10.750
.500  .500  .593  .718  .843  1.000  1.125   
11
11.750
.500   
12
12.750
.562  .500  .687  .843  1.000  1.125  1.312   
14
14.000
.593  .500  .750  .937  1.093  1.250  1.406   
16
16.000
.656  .500  .843  1.031  1.218  1.437  1.593   
18
18.000
.750  .500  .937  1.156  1.375  1.562  1.781   
20
20.000
.812  .500  1.031  1.280  1.500  1.750  1.968   
24
24.000
.968  .500  1.218  1.531  1.812  2.062  2.343   
26
26.000
.500   
28
28.000
30
30.000
.500   
32
32.000
  .500   
34
34.00
 
36
36.000
  .500   
42
42.000
  .500 
48
48.000
  .500 

 

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