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철강자료 HOME > TECHNOLOGY > 철강자료
Carbon, Alloy and Stainless Steel Pipes - ASME/ANSI B36.10/19



Pipe sizes, inside and outside diameters, wall thickness, schedules, moment of inertia, transverse area, weight and weight of pipe filled with water - U.S. Customary Units




The steel pipe data chart below can be used to find pipe sizes, diameters, wall thickness, working pressures and more The chart is based on ASME/ANSI B 36.10 Welded and Seamless Wrought Steel Pipe and ASME/ANSI B36.19 Stainless Steel Pipe.Regardless of schedule number, pipes of a particular size all have the same outside diameter (not withstanding manufacturing tolerances). As the schedule number increases, the wall thickness increases, and the actual bore is reduced. For example:

- A 4 inches (100 mm) Schedule 40 pipe has an outside diameter of 4.500 inches (114.30 mm), a wall thickness of 0.237 inches (6.02 mm), giving a bore of 4.026 inches (102.26 mm).

- A 4 inches (100 mm) Schedule 80 pipe has an outside diameter of 4.500 inches ( 114.30 mm), a wall thickness of 0.337 inches (8.56 mm), giving a bore of 3.826 inches  (97.18 mm).

Pipe Size
(inches)

Outside Diameter
(inches)

Identification

Wall Thickness - t -
(inches)

Inside Diameter - d -
(inches)

Area of Metal
(square inches)

Transverse Internal Area

Moment
of Inertia
- - l -
(inches)

Weight Pipe
(pounds per foot)

Weight
Water
(pounds per foot)

External Surface
(square feet per foot of pipe)

Steel

Stainless Steel Schedule No.

- a -
(square inches)

 - A -
(square feet)

Iron Pipe Size

Schedule No.

1/8

0.405

.
STD
XS

.
40
80

10S
40S
80S

.049
.068
.095

.307
.269
.215

.0548
.0720
.0925

.0740
.0568
.0364

.00051
.00040
.00025

.00088
.00106
.00122

.19
.24
.31

.032
.025
.016

.106
.106
.106

¼

0.540

.
STD
XS


40
80

10S
40S
80S

.065
.088
.119

.410
.364
.302

.0970
.1250
.1574

.1320
.1041
.0716

.00091
.00072
.00050

.00279
.00331
.00377

.33
.42
.54

.057
.045
.031

.141
.141
.141

3/8

0.675

.
STD
XS

.
40
80

10S
40S
80S

.065
.091
.126

.545
.493
.423

.1246
.1670
.2173

.2333
.1910
.1405

.00162
.00133
.00098

.00586
.00729
.00862

.42
.57
.74

.101
.083
.061

.178
.178
.178

½

0.840

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.083
.109
.147
.187
.294

.710
.674
.622
.546
.466
.252

.1583
.1974
.2503
.3200
.3836
.5043

.3959
.3568
.3040
.2340
.1706
.050

.00275
.00248
.00211
.00163
.00118
.00035

.01197
.01431
.01709
.02008
.02212
.02424

.54
.67
.85
1.09
1.31
1.71

.172
.155
.132
.102
.074
.022

.220
.220
220
.220
220
.220

¾

 

1.050

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.083
.113
.154
.219
.308

.920
.884
.824
.742
.612
.434

.2011
.2521
.3326
.4335
.5698
.7180

.6648
.6138
.5330
.4330
.2961
.148

.00462
.00426
.00371
.00300
.00206
.00103

.02450
.02969
.03704
.04479
.05269
.05792

.69
.86
1.13
1.47
1.94
2.44

.288
.266
.231
.188
.128
.064

.275
.275
.275
.275
.275
.275

1

1.315

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.109
.133
.179
.250
.358

1.185
1.097
1.049
.957
.815
.599

.2553
.4130
.4939
.6388
.8365
1.0760

1.1029
.9452
.8640
.7190
.5217
.282

.00766
.00656
.00600
.00499
.00362
.00196

.04999
.07569
.08734
.1056
.1251
.1405

.87
1.40
1.68
2.17
2.84
3.66

.478
.409
.375
.312
.230
.122

.344
.344
.344
.344
.344
.344

1 ¼

1.660

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.109
.140
.191
.250
.382

1.530
1.442
1.380
1.278
1.160
.896

.3257
.4717
.6685
.8815
1.1070
1.534

1.839
1.633
1.495
1.283
1.057
.630

.01277
.01134
.01040
.00891
.00734
.00438

.1038
.1605
.1947
.2418
.2839
.3411

1.11
1.81
2.27
3.00
3.76
5.21

.797
.708
.649
.555
.458
.273

.435
.435
.435
.435
.435
.435

1 ½

1.900

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.109
.145
.200
.281
.400

1.770
1.682
1.610
1.500
1.338
1.100

.3747
.6133
.7995
1.068
1.429
1.885

2.461
2.222
2.036
1.767
1.406
.950

.01709
.01543
.01414
.01225
.00976
.00660

.1579
.2468
.3099
.3912
.4824
.5678

1.28
2.09
2.72
3.63
4.86
6.41

1.066
.963
.882
.765
.608
.42

.497
.497
.497
.497
.497
.497

2

2.375

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.065
.109
.154
.218
.344
.436

2.245
2.157
2.067
1.939
1.687
1.503

.4717
.7760
1.075
1.477
2.190
2.656

3.958
3.654
3.355
2.953
2.241
1.774

.02749
.02538
.02330
.02050
.01556
.01232

.3149
.4992
.6657
.8679
1.162
1.311

1.61
2.64
3.65
5.02
7.46
9.03

1.72
1.58
1.45
1.28
.97
.77

.622
.622
.622
.622
.622
.622

2 ½

2.875

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.083
.120
.203
.276
.375
.552

2.709
2.635
2.469
2.323
2.125
1.771

.7280
1.039
1.704
2.254
2.945
4.028

5.764
5.453
4.788
4.238
3.546
2.464

.04002
.03787
.03322
.02942
.02463
.01710

.7100
.9873
1.530
1.924
2.353
2.871

2.48
3.53
5.79
7.66
10.01
13.69

2.50
2.36
2.07
1.87
1.54
1.07

.753
.753
.753
.753
.753
.753

3

3.500

.
.
STD
XS
.
XXS

.
.
40
80
160
.

5S
10S
40S
80S
.
.

.083
.120
.216
.300
.438
.600

3.334
3.260
3.068
2.900
2.624
2.300

.8910
1.274
2.228
3.016
4.205
5.466

8.730
8.347
7.393
6.605
5.408
4.155

.06063
.05796
.05130
.04587
.03755
.02885

1.301
1.822
3.017
3.894
5.032
5.993

3.03
4.33
7.58
10.25
14.32
18.58

3.78
3.62
3.20
2.6
2.35
1.80

.916
.916
.916
.916
.916
.916

3 ½

4.000

.
.
STD
XS

.
.
40
80

5S
10S
40S
80S

.083
.120
.226
.318

3.834
3.760
3.548
3.364

1.021
1.463
2.680
3.678

11.545
11.104
9.886
8.888

.08017
.07711
.06870
.06170

1.960
2.755
4.788
6.280

3.48
4.97
9.11
12.50

5.00
4.81
4.29
3.84

1.047
1.047
1.047
1.047

4

4.500

.
.
STD
XS
.
.
XXS

.
.
40
80
120
160
.

5S
10S
40S
80S
.
.
.

.083
.120
.237
.337
.438
.531
.674

4.334
4.260
4.026
3.826
3.624
3.438
3.152

1.152
1.651
3.174
4.407
5.595
6.621
8.101

14.75
14.25
12.73
11.50
10.31
9.28
7.80

.10245
.09898
.08840
.07986
.0716
.0645
.0542

2.810
3.963
7.233
9.610
11.65
13.27
15.28

3.92
5.61
10.79
14.98
19.0
22.51
27.54

6.39
6.18
5.50
4.98
4.47
4.02
3.38

1.178
1.178
1.178
1.178
1.178
1.178
1.178

5

5.563

.
.
STD
XS
.
.
XXS

.
.
40
80
120
160
.

5S
10S
40S
80S
.
.
.

.109
.134
.258
.375
.500
.625
.750

5.345
5.295
5.047
4.813
4.563
4.313
4.063

1.868
2.285
4.300
6.112
7.953
9.696
11.340

22.44
22.02
20.01
18.19
16.35
14.61
12.97

.1558
.1529
.1390
.1263
.1136
.1015
.0901

6.947
8.425
15.16
20.67
25.73
30.03
33.63

6.36
7.77
14.62
20.78
27.04
32.96
38.55

9.72
9.54
8.67
7.88
7.09
6.33
5.61

1.456
1.456
1.456
1.456
1.456
1.456
1.456

6

6.625

.
.
STD
XS
.
.
XXS

.
.
40
80
120
160
.

5S
10S
40S
80S
.
.
.

.109
.134
.280
.432
.562
.718
.864

6.407
6.357
6.065
5.761
5.501
5.187
4.897

2.231
2.733
5.581
8.405
10.70
13.32
15.64

32.24
31.74
28.89
26.07
23.77
21.15
18.84

.2239
.2204
.2006
.1810
.1650
.1469
.1308

11.85
14.40
28.14
40.49
49.61
58.97
66.33

7.60
9.29
18.97
28.57
36.39
45.35
53.16

13.97
13.75
12.51
11.29
10.30
9.16
8.16

1.734
1.734
1.734
1.734
1.734
1.734
1.734

8

8.625

.
.
.
.
STD
.
XS
.
.
.
XXS
.

.
.
20
30
40
60
80
100
120
140
.
160

5S
10S
.
.
40S
.
80S
.
.
.
.
.

.109
.148
.250
.277
.322
.406
.500
.594
.719
.812
.875
.906

8.407
8.329
8.125
8.071
7.981
7.813
7.625
7.437
7.187
7.001
6.875
6.813

2.916
3.941
6.57
7.26
8.40
10.48
12.76
14.96
17.84
19.93
21.30
21.97

55.51
54.48
51.85
51.16
50.03
47.94
45.66
43.46
40.59
38.50
37.12
36.46

.3855
.3784
.3601
.3553
.3474
.3329
.3171
.3018
.2819
.2673
.2578
.2532

26.44
35.41
57.72
63.35
72.49
88.73
105.7
121.3
140.5
153.7
162.0
165.9

9.93
13.40
22.36
24.70
28.55
35.64
43.39
50.95
60.71
67.76
72.42
74.69

24.06
23.61
22.47
22.17
21.70
20.77
19.78
18.83
17.59
16.68
16.10
15.80

2.258
2.258
2.258
2.258
2.258
2.258
2.258
2.258
2.258
2.258
2.258
2.258

10

10.750

.
.
.
.
STD
XS
.
.
.
.
.

.
.
20
30
40
60
80
100
120
140
160

5S
10S
.
.
40S
80S
.
.
.
.
.

.134
.165
.250
.307
.365
.500
.594
.719
.844
1.000
1.125

10.482
10.420
10.250
10.136
10.020
9.750
9.562
9.312
9.062
8.750
8.500

4.36
5.49
8.24
10.07
11.90
16.10
18.92
22.63
26.24
30.63
34.02

86.29
85.28
82.52
80.69
78.86
74.66
71.84
68.13
64.53
60.13
56.75

.5992
.5922
.5731
.5603
.5475
.5185
.4989
.4732
.4481
.4176
.3941

63.0
76.9
113.7
137.4
160.7
212.0
244.8
286.1
324.2
367.8
399.3

15.19
18.65
28.04
34.24
40.48
54.74
64.43
77.03
89.29
104.13
115.64

37.39
36.95
35.76
34.96
34.20
32.35
31.13
29.53
27.96
26.06
24.59

2.814
2.814
2.814
2.814
2.814
2.814
2.814
2.814
2.814
2.814
2.814

12

12.75

.
.
.
.
STD
.
XS
.
.
.
.
.
.

.
.
20
30
.
40
.
60
80
100
120
140
160

5S
10S
.
.
40S
.
80S
.
.
.
.
.
.

.156
.180
.250
.330
.375
.406
.500
.562
.688
.844
1.000
1.125
1.312

12.438
12.390
12.250
12.090
12.000
11.938
11.750
11.626
11.374
11.062
10.750
10.500
10.126

6.17
7.11
9.82
12.87
14.58
15.77
19.24
21.52
26.03
31.53
36.91
41.08
47.14

121.50
120.57
117.86
114.80
113.10
111.93
108.43
106.16
101.64
96.14
90.76
86.59
80.53

.8438
.8373
.8185
.7972
.7854
.7773
.7528
.7372
.7058
.6677
.6303
.6013
.5592

122.4
140.4
191.8
248.4
279.3
300.3
361.5
400.4
475.1
561.6
641.6
700.5
781.1

20.98
24.17
33.38
43.77
49.56
53.52
65.42
73.15
88.63
107.32
125.49
139.67
160.27

52.65
52.25
51.07
49.74
49.00
48.50
46.92
46.00
44.04
41.66
39.33
37.52
34.89

3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338
3.338

14

14.00

.
.
.
.
STD
.
XS
.
.
.
.
.
..

.
.
10
20
30
40
.
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.
.
.
.

156
.188
.250
.312
.375
.438
.500
.594
.750
.938
1.094
1.250
1.406

13.688
13.624
13.500
13.376
13.250
13.124
13.000
12.812
12.500
12.124
11.812
11.500
11.188

6.78
8.16
10.80
13.42
16.05
18.66
21.21
24.98
31.22
38.45
44.32
50.07
55.63

147.15
145.78
143.14
140.52
137.88
135.28
132.73
128.96
122.72
115.49
109.62
103.87
98.31

1.0219
1.0124
.9940
.9758
.9575
.9394
.9217
.8956
.8522
.8020
.7612
.7213
.6827

162.6
194.6
255.3
314.4
372.8
429.1
483.8
562.3
678.3
824.4
929.6
1027.0
1117.0

23.07
27.73
36.71
45.61
54.57
63.44
72.09
85.05
106.13
130.85
150.79
170.28
189.11

63.77
63.17
62.03
60.89
59.75
58.64
57.46
55.86
53.18
50.04
47.45
45.01
42.60

3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665
3.665

16

16.00

.
.
.
.
STD
XS
.
.
.
.
.
.

.
.
10
20
30
40
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.
.
.

.165
.188
.250
.312
.375
.500
.656
.844
1.031
1.219
1.438
1.594

15.670
15.624
15.500
15.376
15.250
15.000
14.688
14.312
13.938
13.562
13.124
12.812

8.21
9.34
12.37
15.38
18.41
24.35
31.62
40.14
48.48
56.56
65.78
72.10

192.85
191.72
188.69
185.69
182.65
176.72
169.44
160.92
152.58
144.50
135.28
128.96

1.3393
1.3314
1.3103
1.2895
1.2684
1.2272
1.1766
1.175
1.0596
1.0035
.9394
.8956

257.3
291.9
383.7
473.2
562.1
731.9
932.4
1155.8
1364.5
1555.8
1760.3
1893.5

27.90
31.75
42.05
52.27
62.58
82.77
107.50
136.61
164.82
192.43
223.64
245.25

83.57
83.08
81.74
80.50
79.12
76.58
73.42
69.73
66.12
62.62
58.64
55.83

4.189
4.189
4.189
4.189
4.189
4.189
4.189
4.189
4.189
4.189
4.189
4.189

18

18.00

.
.
.
.
STD
.
XS
.
.
.
.
.
.
.

.
.
10
20
.
30
.
40
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.

.
.
.
.

.165
.188
.250
.312
.375
.438
.500
.562
.750
.938
1.156
1.375
1.562
1.781

17.670
17.624
17.500
17.376
17.250
17.124
17.000
16.876
16.500
16.124
15.688
15.250
14.876
14.438

9.25
10.52
13.94
17.34
20.76
24.17
27.49
30.79
40.64
50.23
61.17
71.81
80.66
90.75

245.22
243.95
240.53
237.13
233.71
230.30
226.98
223.68
213.83
204.24
193.30
182.66
173.80
163.72

1.7029
1.6941
1.6703
1.6467
1.6230
1.5990
1.5763
1.5533
1.4849
1.4183
1.3423
1.2684
1.2070
1.1369

367.6
417.3
549.1
678.2
806.7
930.3
1053.2
1171.5
1514.7
1833.0
2180.0
2498.1
2749.0
3020.0

31.43
35.76
47.39
58.94
70.59
82.15
93.45
104.67
138.17
170.92
207.96
244.14
274.22
308.50

106.26
105.71
104.21
102.77
101.18
99.84
98.27
96.93
92.57
88.50
83.76
79.07
75.32
70.88

4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712
4.712

20

20.00

.
.
.
STD
XS
.
.
.
.
.
.
.

.
.
10
20
30
40
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.
.
.

.188
.218
.250
.375
.500
.594
.812
1.031
1.281
1.500
1.750
1.969

19.624
19.564
19.500
19.250
19.000
18.812
18.376
17.938
17.438
17.000
16.500
16.062

11.70
13.55
15.51
23.12
30.63
36.15
48.95
61.44
75.33
87.18
100.33
111.49

302.46
300.61
298.65
290.04
283.53
278.00
265.21
252.72
238.83
226.98
213.82
202.67

2.1004
2.0876
2.0740
2.0142
1.9690
1.9305
1.8417
1.7550
1.6585
1.5762
1.4849
1.4074

574.2
662.8
765.4
1113.0
1457.0
1703.0
2257.0
2772.0
3315.2
3754.0
4216.0
4585.5

39.78
46.06
52.73
78.60
104.13
123.11
166.40
208.87
256.10
296.37
341.09
379.17

131.06
130.27
129.42
125.67
122.87
120.46
114.92
109.51
103.39
98.35
92.66
87.74

5.236
5.236
5.236
5.236
5.236
5.236
5.236
5.236
5.236
5.236
5.236
5.236

22

22.00

.
.
.
STD
XS
.
.
.
.
.
.

.
.
10
20
30
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.
.

.188
.218
.250
.375
.500
.875
1.125
1.375
1.625
1.875
2.125

21.624
21.564
21.500
21.250
21.000
20.250
19.75
19.25
18.75
18.25
17.75

12.88
14.92
17.08
25.48
33.77
58.07
73.78
89.09
104.02
118.55
132.68

367.25
365.21
363.05
354.66
346.36
322.06
306.35
291.04
276.12
261.59
247.45

2.5503
2.5362
2.5212
2.4629
2.4053
2.2365
2.1275
2.0211
1.9175
1.8166
1.71840

766.2
884.8
1010.3
1489.7
1952.5
3244.9
4030.4
4758.5
5432.0
6053.7
6626.4

43.80
50.71
58.07
86.61
114.81
197.41
250.81
302.88
353.61
403.00
451.06

159.14
158.26
157.32
153.68
150.09
139.56
132.76
126.12
119.65
113.36
107.23

5.760
5.760
5.760
5.760
5.760
5.760
5.760
5.760
5.760
5.760
5.760

24

24.00

.
.
STD
XS
.
.
.
.
.
.
.
.

.
10
20
.
30
40
60
80
100
120
140
160

5S
10S
.
.
.
.
.
.
.
.
.
.

.218
.250
.375
.500
.562
.688
.969
1.219
1.531
1.812
2.062
2.344

23.564
23.500
23.250
23.000
22.876
22.624
22.062
21.562
20.938
20.376
19.876
19.312

16.29
18.65
27.83
36.91
41.39
50.31
70.04
87.17
108.07
126.31
142.11
159.41

436.10
433.74
424.56
415.48
411.00
402.07
382.35
365.22
344.32
326.08
310.28
292.98

3.0285
3.0121
2.9483
2.8853
2.8542
2.7921
2.6552
2.5362
2.3911
2.2645
2.1547
2.0346

1151.6
1315.4
1942.0
2549.5
2843.0
3421.3
4652.8
5672.0
6849.9
7825.0
8625.0
9455.9

55.37
63.41
94.62
125.49
140.68
171.29
238.35
296.58
367.39
429.39
483.12
542.13

188.98
187.95
183.95
179.87
178.09
174.23
165.52
158.26
149.06
141.17
134.45
126.84

6.283
6.283
6.283
6.283
6.283
6.283
6.283
6.283
6.283
6.283
6.283
6.283

26

26.00

.
STD
XS

10
.
20

.
.
.

.312
.375
.500

25.376
25.250
25.000

25.18
30.19
40.06

505.75
500.74
490.87

3.5122
3.4774
3.4088

2077.2
2478.4
3257.0

85.60
102.63
136.17

219.16
216.99
212.71

6.806
6.806
6.806

28

28.00

.
STD
XS
.

10
.
20
30

.
.
.
.

.312
.375
.500
.625

27.376
27.250
27.000
26.750

27.14
32.54
43.20
53.75

588.61
583.21
572.56
562.00

4.0876
4.0501
3.9761
3.9028

2601.0
3105.1
4084.8
5037.7

92.26
110.64
146.85
182.73

255.07
252.73
248.11
243.53

7.330
7.330
7.330
7.330

30

30.00

.
.
STD
XS
.

.
10
.
20
30

5S
10S
.
.
.

.250
.312
.375
.500
.625

29.500
29.376
29.250
29.000
28.750

23.37
29.10
34.90
46.34
57.68

683.49
677.76
671.96
660.52
649.18

4.7465
4.7067
4.6664
4.5869
4.5082

2585.2
3206.3
3829.4
5042.2
6224.0

79.43
98.93
118.65
157.53
196.08

296.18
293.70
291.18
286.22
281.31

7.854
7.854
7.854
7.854
7.854

32

32.00

.
STD
XS
.
.

10
.
20
30
40

.
.
.
.
.

.312
.375
.500
.625
.688

31.376
31.250
31.000
30.750
30.624

31.06
37.26
49.48
61.60
67.68

773.19
766.99
754.77
742.64
736.57

5.3694
5.3263
5.2414
5.1572
5.1151

3898.9
4658.5
6138.6
7583.4
8298.3

105.59
126.66
168.21
209.43
230.08

335.05
332.36
327.06
321.81
319.18

8.378
8.378
8.378
8.378
8.378

34

34.00

.
STD
XS
.
.

10
.
20
30
40

.
.
.
.
.

.344
.375
.500
.625
.688

33.312
33.250
33.000
32.750
32.624

36.37
39.61
52.62
65.53
72.00

871.55
868.31
855.30
842.39
835.92

6.0524
6.0299
5.9396
5.8499
5.8050

5150.5
5599.3
7383.5
9127.6
9991.6

123.65
134.67
178.89
222.78
244.77

377.67
376.27
370.63
365.03
362.23

8.901
8.901
8.901
8.901
8.901

36

36.00

.
STD
XS
.
.

10
.
20
30
40

.
.
.
.
.

.312
.375
.500
.625
.750

35.376
35.250
35.000
34.750
34.500

34.98
41.97
55.76
69.46
83.06

982.90
975.91
962.11
948.42
934.82

6.8257
6.7771
6.6813
6.5862
6.4918

5569.5
6658.9
8786.2
10868.4
12906.1

118.92
142.68
189.57
236.13
282.35

425.92
422.89
416.91
417.22
405.09

9.425
9.425
9.425
9.425
9.425

42

42.00

STD
XS
.
.

.
20
30
40

.
.
.
.

.375
.500
.625
.750

41.250
41.000
40.720
40.500

49.08
65.18
81.28
97.23

1336.3
1320.2
1304.1
1288.2

.
.
.
.

10627
14037
17373
20689

167
222
276
330

579.3
572.3
565.4
558.4

10.99
10.99
10.99
10.99

1 in (inch) = 25.4 mm STD, XS and XXS To distinguish different weights of pipe, three long standing traditional designations are used: standard wall (Std.), extra strong wall (XS), and double extra strong wall (XXS). These last two designations are sometimes referred to as extra heavy wall (XH), and double extra heavy wall (XXH).  

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