STAINLESS STEEL SEAMLESS pipe

seamless-pipe

Stainless Steel 201/304/304L/316/316L Seamless steel pipe Pipe, ASTM A312 Stainless Steel Welded Seamless steel pipe

Bhawal Steel Agency is a company known for manufacturing Seamless steel pipe and other steel grade products. Seamless steel alloy pipes are available in different types such as ASTM P11, P22, P91 to be used across liquid petroleum applications in size ranges from 50.8-860mm and thickness is featured from 2.77-100 mm depending upon the applications. We only deal with products designed based on national and international quality standards only and appreciated worldwide.

Seamless steel pipes can be cut, threaded or grooved, and the chosen costing solution includes red and black lacquer, varnish painting, hot dip galvanization, etc. Seamless pipes have customization specifications and can be provided in several different finishes, such as hot finished, cold finished, and semi-finished, depending upon the client’s requirements. The seamless steel pipe is a round pipe having a hollow section joint around it. Seamless Steel Pipe is a high carbon version alloy with a carbon proportion of 0.25-0.30%, and other elements such as manganese up to 1%, copper up to 0.4%, and nickel up to 0.4% chromium, and molybdenum. The mechanical properties of seamless steel pipes are also good. It has a thermal conductivity of 20ºC, which equals 51 W/m K, a specific thermal conductivity of 461 J/kg K, and good tensile and yielding strength. Seamless steel pipe which is made of carbon, known as carbon steel or stainless steel ingot and then presented by cold rolling, cold drawing or hot rolling. Seamless pipes can easily withstand high temperatures in cryogenic environments. Due to the property of seamless pipes, they are widely found there applications such as hydraulic cylinders, hydrocarbon industries, refinery industries, hydrocarbon industries, oil and gas industries, like many more.

STAINLESS STEEL SEAMLESS Pipe Specification

STAINLESS STEEL PIPE, STAINLESS STEEL SEAMLESS PIPES SPECIFICATION
Diameter of Stainless Steel Pipe
1/2” NB – 24” NB
Wall Thickness of Seamless Stainless Steel Pipe
Schedule 5S – Schedule XXS (heavier on request)
300 Series Stainless Steel Pipe Grades
304 – 304/L – 316 – 316L
Processing
Cut-to-length, polishing

 

Stainless Steel Pipe Sizes

STAINLESS STEEL PIPE DIMENSIONS AND WEIGHTS

PIPESIZE ODININCHES
A.S.A. Pipe Schedules
5s
5
10s
10
20
30
40s& Std.
40
60
80s& E.H.
80
100
120
140
160
DBLE.H.
1/8
.405
 
.035.1383
.049.1863
.049.1863
   
.068.2447
068.2447
 
0.95.3145
0.95.3145
         
1/4
.540
 
.049.2570
.065.3297
.065.3297
   
.088.4248
088.4248
 
.119.5351
.119.5351
         
3/8
.675
 
.049.3276
.065.4235
.065.4235
   
.091.5676
.091.5676
 
.126.7338
.126.7338
         
1/2
.840
.065.5383
.065.5383
.083.6710
.083.6710
   
.109.8510
.109.8510
 
.1471.088
.1471.088
     
.1871.304
.2941.714
3/4
1.050
.065.6838
.065.6838
.083.8572
.083.8572
   
.1131.131
.1131.131
 
.1541.474
.1541.474
     
.2181.937
.3082.441
1
1.315
.065.8678
.065.8678
.1091.404
.1091.404
   
.1331.679
.1331.679
 
.1792.172
.1792.172
     
.2502.844
.3583.659
1-1/4
1.660
.0651.107
.0651.107
.1091.806
.1091.806
   
.1402.273
.1402.273
 
.1912.997
.1912.997
     
.2503.765
.3825.214
1-1/2
1.900
.0651.274
.0651.274
.1092.085
.1092.085
   
.1452.718
.1452.718
 
.2003.631
.2003.631
     
.2814.859
.4006.408
2
2.375
.0651.604
.0651.604
.1092.638
.1092.638
   
.1543.653
.1543.653
 
.2185.022
.2185.022
     
.3437.444
.4369.029
2-1/2
2.875
.0832.475
.0832.475
.1203.531
.1203.531
   
.2035.793
.2035.793
 
.2767.661
.2767.661
     
.37510.01
.55213.70
3
3.500
.0833.029
.0833.029
.1204.332
.1204.332
   
.2167.576
.2167.576
 
.30010.25
.30010.25
     
.43714.32
.60018.58
3-1/2
4.000
.0833.472
.0833.472
.1204.973
.1204.973
   
.2269.109
.2269.109
 
.31812.51
.31812.51
       
.63622.85
4
4.500
.0833.915
.0833.915
.1205.613
.1205.613
   
.23710.79
.23710.79
.28112.66
.33714.98
.33714.98
 
.43719.01
 
.53122.51
.67427.54
4-1/2
5.000
           
.24712.53
   
.35517.61
         
.71032.53
5
5.563
.1096.349
.1096.349
.1347.770
.1347.770
   
.25814.62
.25814.62
 
.37520.78
.37520.78
 
.50027.04
 
.62532.96
.75038.55
6
6.625
.1097.585
.1097.585
.1349.290
.1349.290
   
.28018.97
.28018.97
 
.43228.57
.43228.57
 
.56236.39
 
.71845.30
.86453.16
7
7.625
           
.30123.57
   
.50038.05
         
.87563.08
Medium Type = Wall thickness in inchesBold Type = Steel weight per foot in pounds

 

STAINLESS STEEL PIPE DIMENSIONS AND WEIGHTS

PIPESIZE
ODININCHES
A.S.A. Pipe Schedules
5s
5
10s
10
20
30
40s &Std.
40
60
80s &E.H.
80
100
120
140
160
DBLE.H.
8
8.625
.1099.914
.1099.914
.14813.40
.14813.40
.25022.36
.27724.70
.32228.55
.32228.55
.40635.64
.50043.39
.50043.39
.59350.87
.71860.93
.81267.76
.90674.69
.88572.42
9
9.625
           
.34233.90
   
.50048.72
           
10
10.750
.13415.19
.13415.19
.16518.65
.16518.70
.25028.04
.30734.24
.36540.48
.36540.48
.50054.74
.50054.74
.59364.33
.71876.93
.84389.20
1.000104.10
1.125115.70
 
11
11.750
           
.37545.55
   
.50060.07
           
12
12.750
.15621.07
.16522.18
.18024.16
.18024.20
.25033.38
.33043.77
.37549.56
.40653.53
.56273.16
.50065.42
.68788.51
.843107.20
1.000125.50
1.125139.70
1.312160.3
 
14
14.000
.15623.07
 
.18827.73
.25036.71
.31245.38
.37554.57
.37554.57
.43763.37
.59384.91
.50072.09
.750106.10
.937130.70
1.093150.70
1.250170.20
1.406189.10
 
16
16.000
.16527.90
 
.18831.75
.25042.05
.31252.36
.37562.58
.37562.58
.50082.77
.656107.50
.50082.77
.843136.50
1.031164.80
1.218192.30
1.427223.50
1.593245.10
 
18
18.000
.16531.43
 
.18835.76
.25047.39
.31259.03
.43782.06
.37570.59
.562104.20
.750138.20
.50093.45
.937170.80
1.156208.00
1.375244.10
1.562274.20
1.781308.50
 
20
20.000
.18839.78
 
.21846.05
.25052.73
.37578.60
.500104.10
.37578.60
.593122.90
.812166.40
.500104.10
1.031208.90
1.280256.10
1.500296.40
1.750341.10
1.968379.00
 
22
22.000
.18843.80
 
.21850.71
.25058.07
.37586.61
.500114.81
.37586.61
 
.875197.41
.500114.81
1.125250.81
1.375302.88
1.625353.61
1.875403.00
2.125451.06
 
24
24.000
.21855.37
 
.25063.41
.25063.41
.37594.62
.562140.80
.37594.62
.687171.20
.968238.10
.500125.50
1.218296.40
1.531367.40
1.812429.40
2.062483.10
2.344542.13
 
26
26.000
     
.31285.60
.500136.17
 
.375102.63
   
.500136.17
           
28
28.000
     
.31292.26
.500146.85
.625182.73
.375110.64
                 
30
30.000
.25079.43
 
.31298.93
.31298.93
.500157.53
.625196.08
.375118.65
   
.500157.53
           
32
32.000
     
.312105.59
.500168.21
.625209.43
.375126.66
.688230.08
 
.500168.21
           
34
34.000
     
.312112.25
.500178.89
.625222.78
.375134.67
.688244.77
               
36
36.000
     
.312118.92
 
.625236.13
.375142.68
.750282.35
 
.500189.57
           
Medium Type = Wall thickness in inchesBold Type = Steel weight per foot in pounds

 

Designation of Diameter
O/D
Nominal Wall Thickness
DIA
SCH.5S
SCH.5
SCH 10S
SCH.10
SCH.20S
SCH.30
SCH.40S
SCH.40
SCH 60
(A)
(B)
MeterMM
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
6
1/8
10.3
1
0.23
   
1.2
0.27
   
1.5
0.33
   
1.73
0.37
       
8
1/4
13.7
1.2
0.37
   
1.65
0.49
   
2
0.58
   
2.24
0.64
       
10
3/8
17.2
1.2
0.47
   
1.65
0.63
   
2
0.74
   
2.31
0.87
       
15
1/2
21.3
1.65
0.01
1.65
0.81
2.11
1.02
2.11
1.02
2.5
1.15
   
2.77
1.29
       
20
3/4
26.7
1.65
1.03
1.65
1.03
2.11
1.3
2.11
1.3
2.5
1.49
   
2.87
1.71
       
25
1
33.4
1.65
1.31
1.65
1.31
2.77
2.13
2.77
2.13
3
2.24
   
3.38
2.54
       
32
11/4
24.2
1.65
1.67
1.65
1.67
2.77
2.73
2.77
2.73
3
2.9
   
3.56
3.44
       
40
11/2
48.3
1.65
1.93
1.65
1.93
2.77
3.16
2.77
3.16
3
3.35
   
3.68
4.11
       
50
2
60.3
1.65
1.93
1.65
2.42
2.77
3.99
2.77
3.99
3.5
4.9
   
3.91
5.52
       
65
21/2
73
2.11
3.75
2.11
3.75
3.05
5.34
3.05
5.34
3.5
6
   
5.16
8.77
       
80
3
88.9
2.11
4.59
2.11
4.59
3.05
6.56
3.05
6.56
4
8.37
   
5.49
11.47
       
90
31/2
101.6
2.11
5.25
2.11
5.25
3.05
7.53
3.05
7.53
4
9.62
   
5.74
13.78
       
100
4
114.3
2.11
5.93
2.11
5.93
3.05
8.5
3.05
8.5
4.5
12.18
   
6.02
6.32
       
125
5
141.3
2.77
9.61
2.77
9.61
3.4
11.74
3.43
11.74
5
16.8
   
6.55
2210
       
150
6
168.3
2.77
11.47
2.77
11.47
3.4
14.04
3.43
14.04
5.5
22.08
   
7.11
28.69
       
200
8
219.1
2.77
15
2.77
15
3.76
20.77
3.76
20.27
6.35
33.82
7.04
37.38
8.18
43.2
   
10.81
53.9
250
10
273.1
3.4
22.95
3.4
22.95
4.19
28.2
4.19
28.2
6.35
42.41
7.8
51.81
9.27
61.22
   
12.2
82.8
300
12
323.9
3.96
31.72
4.19
33.6
4.57
36.54
4.57
36.54
6.35
50.48
8.38
66.2
9.53
75.01
10.31
80.94
14.27
110.62
350
14
355.6
3.96
34.86
   
4.78
41.99
6.35
55.53
7.92
68.95
9.53
82.58
9.53
82.58
11.13
96
15.06
128.42
400
16
406.4
4.19
42.2
   
4.78
48.07
6.35
63.61
7.92
79.03
9.53
94.7
9.53
94.7
12.7
125.2
16.66
162.59
450
18
457.2
4.19
47.46
   
4.78
54.15
6.35
71.69
7.92
89.1
11.13
124.32
9.53
106.83
14.27
158.27
19.05
209
500
2C
508
4.78
60.23
   
5.54
69.7
6.35
79.76
9.53
118.93
12.7
157.51
9.53
118.9
15.06
185.89
2062
251.65
550
22
558.8
4.78
65.95
   
5.54
76.75
6.35
87.84
9.53
131.07
12.7
173.66
9.53
131.07
15.88
216.04
22.23
298.55
600
24
609.6
5.54
83.8
   
6.35
95.92
6.35
95.92
9.53
143.2
14.27
212.72
9.53
143.2
17.45
258.74
24.59
360.21
650
26
660.4
           
7.92
129.4
12.7
205.97
   
9.53
155.32
       
700
28
711.2
           
7.92
139.47
12.7
222.13
15.88
276.48
9.53
167.44
       
750
3C
762
6.35
120.15
   
7.92
149.55
7.92
149.55
12.7
238.28
15.88
296.68
9.53
179.56
       
800
32
812.8
           
7.92
159.62
12.7
254.44
15.88
316.88
9.53
191.69
17.48
348.11
   
850
34
863.6
           
7.92
169.64
12.7
270.5
15.88
336.96
9.53
203.74
17.48
370.22
   
900
36
914.4
           
7.92
179.77
12.7
286.75
15.88
357.28
9.53
215.93
19.05
427.09
   

 

Designation of Diameter
O/D
Nominal Wall Thickness
DIA
SCH 80 S
SCH 80
SCH 100
SCH 120
SCH. 140
SCH.160
SCH.XXS
(A)
(B)
MeterMM
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
WallThk
Weight Kg/Mtr
6
1/8
10.3
2.41
0.47
                       
8
1/4
13.7
3.02
0.82
                       
10
3/8
17.2
3.2
1.12
                       
15
1/2
21.3
3.73
1.64
               
4.75
1.97
7.47
2.59
20
3/4
26.7
3.91
2.93
               
5.54
2.93
7.82
3.69
25
1
33.4
4.55
3.29
               
6.35
4.3
9.09
5.53
32
11/4
24.2
4.85
4.53
               
6.35
5.69
9.7
7.88
40
11/2
48.3
5.08
5.49
               
7.14
7.35
10.16
9.69
50
2
60.3
5.54
7.6
               
8.71
11.26
11.07
13.65
65
21/2
73
7.01
11.59
               
9.53
15.15
14.02
20.72
80
3
88.9
7.62
15.51
               
11.13
21.67
15.24
28.11
90
31/2
101.6
8.08
18.92
                   
16.15
34.56
100
4
114.3
8.56
22.66
       
11.13
28.75
   
13.49
34.05
17.12
41.66
125
5
141.3
9.53
31.44
       
12.7
40.9
   
15.88
49.87
19.05
58.31
150
6
168.3
10.97
43.21
       
14.27
55.03
   
18.24
68.53
21.95
79.1
200
8
219.1
12.7
65.63
   
15.06
76.93
18.24
91.73
20.62
102.47
23.01
112.97
22.23
108
250
10
273.1
12.7
82.8
15.06
97.27
18.24
116.38
21.41
134.9
25.4
157.51
28.58
174.95
25.4
155.5
300
12
323.9
12.7
98.95
17.45
133.88
21.41
162.14
25.4
189.82
28.58
211.31
33.32
242.4
25.4
189.82
350
14
355.6
12.7
109.04
19.05
160.54
23.8
197.74
27.76
227.88
31.75
257.47
35.71
286.04
   
400
16
406.4
12.7
125.2
21.41
206.4
26.19
249.34
30.94
290.88
36.53
338.32
40.46
370.74
   
450
18
457.2
12.7
141.35
23.8
258.29
29.36
314.54
34.93
369.34
39.67
414.74
45.24
466.67
   
500
2C
508
12.7
157.51
26.19
315.97
32.54
387.41
38.1
448.3
44.45
515.94
49.99
573.31
   
550
22
558.8
12.7
173.66
28.57
379.7
34.92
457.83
41.27
535.17
47.62
609.3
53.97
682.57
   
600
24
609.6
12.7
189.82
30.94
448.3
38.89
555.76
46.02
649.44
52.37
730.72
59.51
819.7
   
650
26
660.4
12.7
205.97
    (24.66D-t) t 1000 Wt/pam + formula Weight Stainless Steel Pipe OD (mm) - W.T. (mm) XW.T. (mm) X 0.02466 = Kg. per mtr.
700
28
711.2
   
12.7
222.13
750
3C
762
   
1270
238.28
800
32
812.8
   
12.7
254.44
850
34
863.6
   
12.7
270.5
900
36
914.4
   
12.7
286.75

 

STAINLESS STEEL SEAMLESS PIPES SCHEDULE CHART

NB SIZES
SCH 5
SCH 10
SCH 40
SCH 80
SCH 160
1/8″
         
1/4″
         
3/8″
         
1/2″
         
3/4″
         
1″
         
1 1/4″
         
1 1/2″
         
2″
         
2 1/2″
         
3″
         
4″
         
5″
         
6″
         

 

ANSI Pipe SCH5 to SCH40 Chart

Pipe Size
O.D. Inches
5s
TRUE 5
10s
TRUE 10
20
30
40s & STD
TRUE 40
60
1/8
0.405
 
0.35
0.049
0.049
   
0.068
0.068
 
   
0.1383
0.1863
0.1863
   
0.2447
0.2447
 
1/4
0.54
 
0.049
0.065
0.065
   
0.088
0.088
 
   
0.257
0.3297
0.3297
   
0.4248
0.4248
 
3/8
0.675
 
0.049
0.065
0.065
   
0.091
0.091
 
   
0.3276
0.4235
0.4235
   
0.5676
0.5676
 
1/2
0.84
0.065
0.065
0.083
0.083
   
0.109
0.109
 
 
0.5383
0.5383
0.671
0.671
   
0.851
0.851
 
3/4
1.05
0.065
0.065
0.083
0.083
   
0.113
0.113
 
 
0.6838
0.6838
0.8572
0.8572
   
1.131
1.131
 
1
1.315
0.065
0.065
0.109
0.19
   
0.133
0.133
 
 
0.8678
0.8678
1.404
1.404
   
1.679
1.679
 
1 1/4
1.66
0.065
0.065
0.109
0.109
   
0.14
0.14
 
 
1.107
1.107
1.806
1.806
   
2.273
2.273
 
1 1/2
1.9
0.065
0.065
0.109
0.109
   
0.145
0.145
 
 
1.274
1.274
2.638
2.638
   
2.718
2.718
 
2
2.375
0.065
0.065
0.109
0.109
   
0.154
0.154
 
 
1.604
1.604
2.638
2.638
   
3.653
3.653
 
2 1/2
2.875
0.083
0.083
0.12
0.12
   
0.203
0.203
 
 
2.475
2.475
3.531
3.531
   
5.793
5.793
 
3
3.5
0.083
0.083
0.12
0.12
   
0.216
0.216
 
 
3.029
3.029
4.332
4.332
   
7.576
7.576
 
3 1/2
4
0.083
0.083
0.12
0.12
   
0.226
0.226
 
 
3.472
3.472
4.97
4.97
   
9.109
9.109
 
4
4.5
0.083
0.083
0.12
0.12
   
0.237
0.237
0.281
 
3.915
3.915
5.613
5.613
   
10.79
10.79
12.66
4 1/2
5
           
0.247
   
             
12.53
   
5
5.563
0.109
0.109
0.134
0.134
   
0.258
0.258
 
 
6.349
6.349
7.77
7.77
   
14.62
14.62
 
6
6.625
0.109
0.109
0.134
0.134
   
0.28
0.28
 
 
7.585
7.585
9.289
9.289
   
18.97
18.97
 
7
7.625
           
0.301
   
             
23.57
   
8
8.625
0.109
0.109
0.148
0.148
0.25
0.277
0.322
0.322
0.406
 
9.914
9.914
13.4
13.4
22.36
24.7
28.55
28.55
35.64
9
9.625
           
0.342
   
             
33.9
   
10
10.75
0.134
0.134
0.165
0.165
0.25
0.307
0.365
0.365
0.5
 
15.19
15.19
18.65
18.65
28.04
34.24
40.48
40.48
54.74
11
11.75
           
0.375
   
             
45.55
   
12
12.75
0.156
0.165
0.18
0.18
0.25
0.33
0.375
0.406
0.562
 
21.07
22.18
24.2
24.2
33.38
43.77
49.56
53.53
73.16
14
14
0.156
 
0.188
0.25
0.312
0.375
0.375
0.437
0.593
 
23.06
 
27.73
36.71
45.68
54.57
54.57
63.67
84.91
16
16
0.165
 
0.188
0.25
0.312
0.375
0.375
0.5
0.656
 
27.9
 
31.75
42.05
52.36
62.58
62.58
82.77
107.5
18
18
0.165
 
0.188
0.25
0.312
0.437
0.375
0.562
0.75
 
31.43
 
35.76
47.39
59.03
82.06
70.59
104.8
138.2
20
20
0.188
 
0.218
0.25
0.375
0.5
0.375
0.593
0.812
 
39.78
 
46.05
52.73
78.6
104.1
78.6
122.9
166.4
24
24
0.218
 
0.25
0.25
0.375
0.562
0.375
0.687
0.968
 
55.37
 
63.41
63.41
94.62
140.8
94.62
171.2
238.1
26
26
     
0.312
0.5
 
0.375
   
       
85.6
136.2
 
102.6
   
28
28
     
0.312
0.5
0.625
0.375
   
       
92.26
146.8
182.7
110.6
   
30
30
0.25
 
0.312
0.312
0.5
0.625
0.375
   
 
79.43
 
98.93
98.93
157.5
196.1
118.6
   
32
32
     
0.312
0.5
0.625
0.375
0.688
 
       
105.6
168.2
209.4
126.7
230.1
 
34
34
     
0.312
0.5
0.625
0.375
0.688
 
       
112.3
178.9
222.8
134.7
244.8
 
36
36
     
0.312
 
0.625
0.375
0.75
 
       
118.9
 
236.1
142.7
282.3
 
40
40
           
0.375
   
             
158.7
   
42
42
           
0.375
   
             
166.7
   
48
48
           
0.375
   
             
190.7
   

 

STAINLESS STEEL PIPE PRESSURE RATING

Pressure Rating (psig)
Pipe Size
(inches)
Pipe Schedule
Temperature (oF)
100
200
300
400
500
600
650
700
750
1"
40
3048
2629
2362
2171
2019
1924
1867
1824
1810
80
4213
3634
3265
3002
2791
2659
2580
2528
2501
160
6140
5296
4759
4375
4068
3876
3761
3684
3646
1 1/2"
40
2257
1947
1750
1608
1496
1425
1383
1354
1340
80
3182
2744
2466
2267
2108
2009
1949
1909
1889
160
4619
3984
3580
3291
3060
2916
2829
2772
2743
2"
40
1902
1640
1474
1355
1260
1201
1165
1141
1129
80
2747
2369
2129
1957
1820
1734
1682
1648
1631
160
4499
3880
3486
3205
2980
2840
2755
2699
2671
3"
40
1806
1558
1400
1287
1196
1140
1106
1084
1072
80
2553
2202
1979
1819
1691
1612
1564
1532
1516
160
3840
3312
2976
2736
2544
2424
2352
2304
2280
4"
40
1531
1321
1187
1091
1014
967
938
919
909
80
2213
1909
1715
1577
1466
1397
1355
1328
1314
160
3601
3106
2791
2566
2386
2273
2206
2161
2138
5"
40
1342
1158
1040
956
889
847
822
805
797
80
1981
1709
1535
1411
1312
1250
1213
1189
1176
160
3414
2945
2646
2433
2262
2155
2091
2049
2027
6"
40
1219
1052
945
869
808
770
747
732
724
80
1913
1650
1483
1363
1267
1208
1172
1148
1136
160
3289
2836
2549
2343
2179
2076
2014
1973
1953
8"
40
1073
926
832
765
711
678
657
644
637
80
1692
1459
1311
1205
1121
1068
1036
1015
1005
160
3175
2738
2460
2262
2103
2004
1944
1905
1885
10"
40
974
840
755
694
645
615
596
584
578
80
1609
1388
1247
1147
1066
1016
986
966
956
160
3147
2714
2439
2242
2085
1986
1927
1880
1868

 

STAINLESS STEEL PIPE TOLERANCES

NPS Designator
Permissible Variations in Outside Diameter
Over In.
Under In.
1/8 to 1-1/2, incl
1/64 (0.015)
1/32 (0.031)
Over 1-1/2 to 4, incl
1/32 (0.031)
1/32 (0.031)
Over 4 to 8, incl
1/16 (0.062)
1/32 (0.031)
Over 8 to 18, incl
3/23 (0.093)
1/32 (0.031)

 

Nominal Wall Thickness:

NPS Designator
Outside Diameter in.
Schedule 10S in.
Schedule 40S in.
Schedule 80S in.
Schedule 160 in.
Schedule XX in.
1/4
0.540
0.065
0.088
0.119
   
3/8
0.675
0.065
0.091
0.126
   
1/2
0.840
0.083
0.109
0.147
.188
.294
3/4
1.050
0.083
0.113
0.154
.218
.308
1.0
1.315
0.109
0.133
0.179
.250
.358
1 1/4
1.660
0.109
0.140
0.191
.250
.382
1 1/2
1.900
0.109
0.145
0.200
.281
.400
2
2.375
0.109
0.154
0.218
.343
.436
2 1/2
2.875
0.120
0.203
0.276
.375
.552
3
3.500
0.120
0.216
0.300
.438
.600
3 1/2
4.000
0.120
0.226
0.318
 
.636
4
4.500
0.120
0.237
0.337
.534
.674
5
5.563
0.134
0.258
0.375
.625
.750
6
6.625
0.134
0.280
0.432
.719
.864
8
8.625
0.148
0.322
0.500
.906
.875
10
10.750
0.165
0.365
0.500
1.125
 
12
12.750
0.180
0.375
0.500
1.312
 
14
14.000
0.188
0.375
0.500
1.406
 
16
16.000
0.188
0.375
0.500
1.594
 

 

Minimum Wall Thickness on Inspection

Nominal Thickness
Minimum Thickness on Inspection
Nominal Thickness
Minimum Thickness on Inspection
Nominal Thickness
Minimum Thickness on Inspection
in.
mm
in
mm
in
mm
in
mm
in
mm
in
mm
0.068
1.7
0.060
1.5
0.294
7.5
0.257
6.5
0.750
19.0
0.658
16.6
0.068
2.2
0.077
2.0
0.300
7.6
0.262
6.7
0.812
20.6
0.710
18.0
0.091
2.3
0.080
2.0
0.307
7.8
0.269
6.8
0.843
21.4
0.736
18.7
0.095
2.4
0.083
2.1
0.308
7.8
0.270
6.9
0.854
21.7
0.756
19.2
0.113
2.9
0.099
2.5
0.312
7.9
0.273
6.9
0.875
22.2
0.766
19.5
0.119
3.0
0.104
2.6
0.318
8.1
0.278
7.1
0.906
23.0
0.783
20.1
0.125
3.2
0.109
2.8
0.322
8.2
0.282
7.2
0.937
23.8
0.820
20.8
0.126
3.2
0.110
2.8
0.330
8.4
0.289
7.3
0.968
24.6
0.847
21.5
0.133
3.4
0.116
2.9
0.337
8.6
0.295
7.5
1.000
25.4
0.875
22.2
0.140
3.6
0.122
3.1
0.343
8.7
0.300
7.6
1.031
26.2
0.902
22.9
0.145
3.7
0.127
3.2
0.344
8.7
0.301
7.6
1.062
27.0
0.929
23.6
0.147
3.7
0.129
3.3
0.358
9.1
0.313
8.0
1.083
27.8
0.956
24.3
0.154
3.9
0.135
3.4
0.365
9.3
0.319
8.1
1.125
28.6
0.984
25.0
0.156
4.0
0.136
3.5
0.375
9.5
0.328
8.3
1.156
29.4
1.012
25.7
0.179
4.5
0.157
4.0
0.382
9.7
0.334
8.5
1.218
30.9
1.066
27.1
0.187
43.7
0.164
4.2
0.400
10.2
0.350
8.9
1.250
31.8
1.094
27.8
0.188
4.8
0.164
4.2
0.406
10.3
0.355
9.0
1.281
32.5
1.121
28.5
0.191
4.9
0.167
4.2
0.432
10.4
0.378
9.6
1.312
33.3
1.148
29.2
0.200
5.1
0.175
4.4
0.436
11.1
0.382
9.7
1.343
34.1
1.175
29.8
0.203
5.2
0.178
4.5
0.437
11.1
0.382
9.7
1.375
34.9
1.203
30.6
0.216
5.5
0.189
4.8
0.438
11.1
0.383
9.7
1.406
35.7
1.230
31.2
0.218
5.5
0.191
4.9
0.500
12.7
0.438
11.1
1.436
36.5
1.258
32.0
0.219
5.6
0.192
4.9
0.531
13.5
0.465
11.8
1.500
36.1
1.312
33.3
0.226
5.7
0.196
5.0
0.552
14.0
0.483
12.3
1.531
38.9
1.340
34.0
0.237
6.0
0.207
5.2
0.562
14.3
0.492
12.5
1.562
39.7
1.367
34.7
0.250
6.4
0.219
5.6
0.593
15.1
0.519
13.2
1.593
40.5
1.394
35.4
0.258
6.6
0.226
5.7
0.600
15.2
0.525
13.3
1.750
44.5
1.531
38.9
0.276
7.0
0.242
6.1
0.625
15.9
0.547
13.9
1.781
45.2
1.558
39.6
0.277
7.0
0.242
6.1
0.656
16.6
0.573
14.6
1.812
46.0
1.586
49.3
0.279
7.1
0.244
6.2
0.674
17.1
0.590
15.0
1.968
50.0
1.772
43.7
0.280
7.1
0.245
6.2
0.687
17.4
0.601
15.3
2.062
52.4
1.804
45.8
0.281
7.1
0.246
6.2
0.719
18.3
0.629
16.0
2.343
59.5
2.050
52.1

 

Stainless Steel Seamless Pipes Chemical Composition

The below table shows the chemical composition of the used for Stainless Steel Pipes:

STAINLESS STEEL SEAMLESS PIPE GRADES
UNS
C
Mn
P
S
Si
Cr
Ni
Mo
Ti
Nb
N
TP304
S30400
0.08
2
0.045
0.03
1
18.0-20.0
8.0-11.0
       
TP304L
S30403
0.035
2
0.045
0.03
1
18.0-20.0
8.0-13.0
       
TP316
S3160
0.08
2
0.045
0.03
1
16.0-18.0
11.0-14.0
2.0-3.0
     
TP316L
S31603
0.035
2
0.045
0.03
1
16.0-18.0
10.0-14.0
2.0-3.0
     
TP321
S3210
0.08
2
0.045
0.03
1
17.0-19.0
9.0-12.0
     
0.1
TP321H
S32109
0.04-0.10
2
0.045
0.03
1
17.0-19.0
9.0-12.0
     
0.1
TP347
S3470
0.08
2
0.045
0.03
1
17.0-19.0
9.0-13.0
       

 

Stainless Steel Pipe Mechanical Properties

Material
Heat
Temperure
Tensile Strength
Yield Strength
Elongation %, Min
Treatment
Min.
Ksi (MPa), Min.
Ksi (MPa), Min.
 
º F(º C)
   
TP304
Solution
1900 (1040)
75(515)
30(205)
35
TP304L
Solution
1900 (1040)
70(485)
25(170)
35
TP316
Solution
1900(1040)
75(515)
30(205)
35
TP316L
Solution
1900(1040)
70(485)
25(170)
35

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