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Pipe Schedule and Pipe Size Chart

Rajsagar Steel PVT. LTD offers steel metal pipes in various sizes and schedules. Pipe size indicates the nominal diameter of the pipe, whereas pipe schedule relates to the thickness of the pipe walls. According to the requirements of projects, our clients can select from a range of schedules and sizes, ensuring the best possible performance and longevity for their applications.

What is Pipe Schedule ?

Pipe schedule determines the thickness of pipes used in various applications. It categorizes pipes into standardized types like Schedule 40 and Schedule 80, where lower schedules have thinner walls suitable for less demanding tasks, while higher schedules feature thicker walls for more robust applications such as high-pressure systems and industrial settings.

Pipe Schedule Chart

Pipe Size OD
Inches
  5s 5 10s 10 20 30 40s 40 60 80s 80 100 120 140 160 XXH
1/8 0.405 Wall Thickness   0.035
0.1383
0.049
0.1863
0.049
0.1863
    0.068
0.2447
0.068
0.2447
  0.095
0.3145
0.095
0.3145
         
Weight / Foot
1/4 0.540 Wall Thickness   0.049
0.2570
0.065
0.3297
0.065
0.3297
    0.088
0.4248
0.088
0.4248
  0.119
0.5351
0.119
0.5351
         
Weight / Foot
3/8 0.675 Wall Thickness   0.049
0.3276
0.065
0.4235
0.065
0.4235
    0.091
0.5676
0.091
0.5676
  0.126
0.7338
0.126
0.7338
         
Weight / Foot
1/2 0.840 Wall Thickness 0.065
0.5383
0.065
0.5383
0.083
.06710
0.083
.06710
    0.109
.8510
0.109
.8510
  0.147
1.088
0.147
1.088
      0.188
1.31
0.294
1.714
Weight / Foot
3/4 1.050 Wall Thickness 0.065
0.5383
0.065
0.6838
0.083
0.8572
0.083
0.8572
    0.113
1.131
0.113
1.131
  0.154
1.474
0.154
1.474
      0.219
1.94
0.308
2.441
Weight / Foot
1 1.315 Wall Thickness 0.065
0.8678
0.065
0.8678
0.109
1.404
0.109
1.404
    0.133
1.679
0.133
1.679
  0.179
2.172
0.179
2.172
      0.250
2.844
0.358
3.659
Weight / Foot
1-1/4 1.660 Wall Thickness 0.065
1.107
0.065
1.107
0.109
1.806
0.109
1.806
    0.140
2.273
0.140
2.273
  0.191
2.997
0.191
2.997
      0.250
3.765
0.382
5.214
Weight / Foot
1-1/2 1.900 Wall Thickness 0.065
1.274
0.065
1.274
0.109
2.085
0.109
2.085
    0.145
2.718
0.145
2.718
  0.200
3.631
0.200
3.631
      0.281
4.859
.0400
6.408
Weight / Foot
2 2.375 Wall Thickness 0.065
1.604
0.065
1.604
0.109
2.638
0.109
2.638
    0.154
3.653
0.154
3.653
  0.218
5.022
0.218
5.022
      0.344
7.46
0.436
9.029
Weight / Foot
2-1/2 2.875 Wall Thickness 0.083
2.475
0.083
2.475
0.120
3.531
0.120
3.531
    0.203
5.793
0.203
5.793
  0.276
7.661
0.276
7.661
      0.375
10.01
0.552
13.70
Weight / Foot
3 3.500 Wall Thickness 0.083
3.029
0.083
3.029
0.120
4.332
0.120
4.332
    0.216
7.576
0.216
7.576
  0.300
10.25
0.300
10.25
      0.438
14.32
0.600
18.58
Weight / Foot
3-1/2 4.000 Wall Thickness 0.083
3.472
0.083
3.472
0.120
4.973
0.120
4.973
    0.226
9.109
0.226
9.109
  0.318
12.51
0.318
12.51
        0.636
22.85
Weight / Foot
4 4.500 Wall Thickness 0.083
3.915
0.083
3.915
0.120
5.613
0.120
5.613
    0.237
10.79
0.237
10.79
0.281
12.66
0.337
14.98
0.337
14.98
  0.438
19.00
  0.531
22.51
0.674
27.54
Weight / Foot
4-1/2 5.000 Wall Thickness             0.247
12.53
    0.355
17.61
          0.710
32.53
Weight / Foot
5 5.563 Wall Thickness 0.109
6.349
0.109
6.349
0.134
7.770
0.134
7.770
0.203
11.62
  0.258
14.62
0.258
14.62
  0.375
20.78
0.375
20.78
  0.500
27.04
  .0625
32.96
0.750
38.55
Weight / Foot
6 6.625 Wall Thickness 0.109
7.585
0.109
7.585
0.134
9.290
0.134
9.290
0.203
13.92
  0.280
18.97
0.280
18.97
  0.432
28.57
0.432
28.57
  0.562
36.39
  0.719
45.35
0.864
53.16
Weight / Foot
7 7.625 Wall Thickness             0.301
23.57
    0.500
38.05
          0.875
63.08
Weight / Foot
8 8.625 Wall Thickness 0.109
9.914
0.109
9.914
0.148
13.40
0.148
13.40
0.250
22.36
0.277
24.70
0.322
28.55
0.322
28.55
0.406
35.64
0.500
43.39
0.500
43.39
0.594
50.95
0.719
60.71
0.812
67.76
0.906
74.69
0.875
72.42
Weight / Foot
9 9.625 Wall Thickness             0.342
33.90
    0.500
48.72
           
Weight / Foot
10 10.750 Wall Thickness 0.134
15.19
0.134
15.19
0.165
18.65
0.165
18.65
0.250
28.04
0.307
34.24
0.365
40.48
0.365
40.48
0.500
54.74
0.500
54.74
0.594
64.43
0.719
77.03
0.844
89.29
1.000
104.13
1.125
115.64
1.000
104.13
Weight / Foot
11 11.750 Wall Thickness             0.375
45.55
    0.500
60.07
           
Weight / Foot
12 12.750 Wall Thickness 0.156
21.07
0.165
22.18
0.180
24.16
0.180
24.16
0.250
33.38
0.330
43.77
0.375
49.56
0.406
53.53
0.562
73.16
0.500
65.42
0.688
88.63
0.844
107.32
1.000
125.50
1.125
139.70
1.312
160.30
1.000
125.49
Weight / Foot
14 14.000 Wall Thickness 0.156
23.07
  0.188
27.73
0.250
36.71
0.312
45.61
0.375
54.57
0.375
54.57
0.438
63.44
0.594
85.05
0.500
72.09
0.750
106.10
0.938
130.85
1.094
150.79
1.250
170.20
1.406
189.10
 
Weight / Foot
16 16.000 Wall Thickness 0.165
27.90
  0.188
31.75
0.250
42.05
0.312
52.27
0.375
62.58
0.375
62.58
0.500
82.77
0.656
107.50
0.500
82.77
0.844
136.61
1.031
164.80
1.219
192.43
1.428
223.64
1.594
245.25
 
Weight / Foot
18 18.000 Wall Thickness 0.165
31.43
  0.188
35.76
0.250
47.39
0.312
58.94
0.438
82.15
0.375
70.59
0.562
104.67
0.750
138.20
0.500
93.45
0.938
170.92
1.156
208.00
1.375
244.10
1.562
274.20
1.781
308.50
 
Weight / Foot
20 20.000 Wall Thickness 0.188
39.78
  0.219
46.27
0.250
52.73
0.375
78.60
0.500
104.10
0.375
78.60
0.594
123.11
0.812
166.40
0.500
104.10
1.031
208.90
1.281
256.10
1.500
296.40
1.750
341.10
1.969
379.17
 
Weight / Foot
22 22.000 Wall Thickness 0.188
43.80
  0.219
50.94
0.250
58.07
0.375
86.61
0.500
114.81
0.375
86.61
  0.875
197.41
0.500
114.81
1.125
250.81
1.375
302.88
1.625
353.61
1.875
403.00
2.125
451.06
 
Weight / Foot
24 24.000 Wall Thickness 0.218
55.37
  0.250
63.41
0.250
63.41
0.375
94.62
0.562
140.80
0.375
94.62
0.688
171.29
0.969
238.35
0.500
125.50
1.219
296.58
1.531
367.40
1.812
429.40
2.062
483.10
2.344
542.13
 
Weight / Foot
26 26.000 Wall Thickness       0.312
85.60
0.500
136.17
  0.375
102.63
    0.500
136.17
           
Weight / Foot
28 28.000 Wall Thickness       0.312
92.26
0.500
146.85
0.625
182.73
0.375
110.64
                 
Weight / Foot
30 30.000 Wall Thickness .250
79.43
  0.312
98.93
0.312
98.93
0.500
157.53
0.625
196.08
0.375
118.65
    0.500
157.53
           
Weight / Foot
32 32.000 Wall Thickness       0.312
105.59
0.500
168.21
0.625
209.43
0.375
126.66
0.688
230.08
  0.500
168.21
           
Weight / Foot
34 34.000 Wall Thickness       0.312
112.25
0.500
178.89
0.625
222.78
0.375
134.67
0.688
244.77
  0.500
178.89
           
Weight / Foot
36 36.000 Wall Thickness       0.312
118.92
0.500
189.57
0.625
236.13
0.375
142.68
0.750
282.35
  0.500
189.57
           
Weight / Foot
42 42.000 Wall Thickness             0.375
166.71
    0.500
221.61
           
Weight / Foot
48 48.000 Wall Thickness             0.375
190.74
    0.500
253.65
           
Weight / Foot

What is Pipe size

Pipe size refers to the nominal diameter of a pipe, typically measured in inches (in) or millimeters (mm). It indicates the internal diameter of the pipe and is essential for determining the flow capacity and suitability for various applications. Pipe size charts provide a comprehensive reference for understanding the relationship between pipe dimensions, flow rates, pressure ratings, and end-use applications.

Exp, in plumbing, knowing the pipe size is crucial for proper installation and ensuring adequate water flow. Similarly, in industrial settings such as oil and gas, chemical processing, or HVAC systems, selecting the correct pipe size is vital for efficient operation and safety.

Pipe Size Chart

Nominal
Pipe Size (NPS)

Outside
Diameter (OD) (inches)

Schedule

Wall
Thickness (inches)

Inside
Diameter (ID) (inches)

Weight
per Foot (lbs/ft)

8-Jan

0.405

10, 40

0.049, 0.068

0.307, 0.269

0.186, 0.244

4-Jan

0.54

10, 40

0.065, 0.088

0.410, 0.364

0.329, 0.424

8-Mar

0.675

10, 40

0.065, 0.091

0.545, 0.493

0.424, 0.567

2-Jan

0.84

5, 10, 40

0.065, 0.083, 0.109

0.710, 0.674, 0.622

0.852, 1.088, 1.502

4-Mar

1.05

5, 10, 40

0.065, 0.083, 0.113

0.920, 0.884, 0.824

1.130, 1.474, 1.733

1

1.315

5, 10, 40

0.065, 0.109, 0.133

1.185, 1.097, 1.049

1.679, 2.273, 2.897

1 1/4

1.66

5, 10, 40

0.065, 0.109, 0.140

1.530, 1.442, 1.380

2.272, 3.018, 3.733

1 1/2

1.9

5, 10, 40

0.065, 0.109, 0.145

1.770, 1.682, 1.610

2.719, 3.631, 4.655

2

2.375

5, 10, 40

0.065, 0.109, 0.154

2.245, 2.157, 2.067

3.653, 4.653, 5.793

2 1/2

2.875

5, 10

0.083, 0.120

2.709, 2.635

5.793, 7.601

3

3.5

5, 10

0.083, 0.120

3.334, 3.260

7.575, 10.25

3 1/2

4

5

0.083

3.834

9.11

4

4.5

5, 10

0.083, 0.120

4.334, 4.250

10.79, 14.62

5

5.563

5, 10

0.109, 0.134

5.345, 5.295

17.91, 22.52

6

6.625

5, 10

0.109, 0.134

6.407, 6.357

24.70, 30.88

8

8.625

5, 10

0.109, 0.148

8.407, 8.329

43.39, 53.52

10

10.75

5

0.134

10.482

68.96

12

12.75

5

0.156

12.438

95.32

How Pipe Schedule Differ From Pipe Size

Pipe size refers to the pipe's nominal diameter, while Pipe Schdule (SCH) indicates the wall thickness. SCH helps maintain the compatibility and standards that are essential for durability and pressure ratings.

          Pipe Schedule  Pipe Size
Indicates wall thickness: Lower number = thinner wall; higher number = thicker wall, often correlating with higher pressure capability. Represents pipe diameter. Larger size = more flow capacity.
Higher SCH indicates stronger pipes, suitable for higher pressures and stresses. Larger size pipes can handle greater flow rates and volumes of fluid.
Common in industries needing high-pressure containment like oil and gas, chemical processing. Used in plumbing, irrigation, HVAC, and general fluid transport.
Thicker pipes (higher schedule) often cost more due to increased material and manufacturing requirements. Larger pipes tend to be more expensive due to greater material usage.
Thicker-walled pipes (higher schedule) are less flexible, impacting maneuverability during installation. Larger pipes may be less flexible and more challenging to install in confined spaces
SCH 10: 1/8" - 48" SCH 20: 1/8" - 48" SCH 40: 1/8- 24" SCH 80: 1/8" - 24" SCH 160: 1/8" - 12" Pipe sizes can range from 1/8" to 48" in diameter, varying by SCH for different wall thicknesses and pressure ratings.