CÔNG TY TNHH XNK VÀ THƯƠNG MẠI TÂN THÁI BÌNH
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Điện thoại: 024.36421702 - Fax : 024.36423011 - Email : info@inoxtanthaibinh.com
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A stainless steel pipe system is the product of choice for carrying corrosive or sanitary fluids, slurries and gases, particularly where high pressures, high temperatures or corrosive environments are involved. Due to stainless steel’s aesthetic properties, stainless steel pipe is also used in architectural applications.
Stainless steel pipe can be generally defined as a heavy wall thickness tubing, with dimensions as specified by the American National Standards Institute (ANSI). Pipe dimensions are specified by outside diameter – indicated by the NPS (imperial) or DN (metric) designator and sometimes confusingly referred to as the ‘nominal bore’ – and wall thickness, reflected in the schedule number. ASME B36.19M covers these dimensions.
Stainless steel pipe and fittings are supplied in the annealed condition to facilitate fabrication and ensure best corrosion resistance. Atlas Steels can also supply stainless steel pipe with an abrasive polished external finish suitable for architectural applications.
Welded Pipe
Welded stainless steel pipe is manufactured from 2B or HRAP stainless steel strip – formed to shape, longitudinally welded and annealed.
Large size pipe is fabricated from plate.
All welds are made without the addition of filler metal, except for very large diameters. Standard welded pipe is in nominal lengths of 6.0 or 6.1 metres.
Manufacturing specification: ASTM A312M – Austenitic
ASTM A358M – Austenitic (large diameter) ASTM A790M – Duplex
Seamless Pipe
Seamless stainless steel pipe is produced from hollow billets, which are pierced then usually cold drawn until they reach the final desired pipe size, then annealed.
Standard seamless pipe is supplied in nominal lengths of 6.1 metres to DN 150 (NPS 6) and above this in random lengths.
Manufacturing specification: ASTM A312M – Austenitic
ASTM A790M – Duplex
Stainless steel piping systems can be joined by butt welding and, in the heavier 40S and 80S schedules, by threaded connections.
The complete piping system is made possible using complementary fittings and flanges. These are specified by the same DN or NPS designator and schedule numbering system as for pipe.
Butt Welding Pipe Fittings
A piping system using butt welding fittings has many inherent advantages over other forms.
· Welding a fitting to the pipe means that it is permanently leak proof
· The continuous metal structure formed between pipe and fitting adds strength to the system
· Smooth inner surface and gradual direction changes reduce pressure losses and turbulence and minimise the action of corrosion and erosion
· A welded system utilizes a minimum of space
Atlas Steels Supply Butt Welding Fittings in the following forms
· Elbows 45o and 90o – long radius is standard; short radius is also available
· Return bends 180o – long radius is standard; short radius is also available
· Reducers – concentric and eccentric
· Tees – equal and reducing
· Caps
· Stub ends – Type B, to MSS SP-43
Butt welding fittings can be supplied in either seamless or welded construction and are covered by specification ASTM A403M (or ASTM A815M for Duplex grades) and ASME B16.9.
Screwed and Socket Weld Fittings
Piping systems can be connected using screwed fittings – BSP threaded (“150lb”) low pressure fittings and NPT threaded (class 3000) high pressure fittings in Grade 316.
Socket weld fittings are used in high pressure piping systems and are available in grade 316L to suit schedule 80S wall thickness piping.
Manufacturing specification: ASTM A182M (Class 3000 NPT and socket weld) and
ASME B16.11
ISO 4144 (BSP dimensions)
Stainless Steel Pipe – Welded & Seamless – ASTM A312M / ASTM A790M
Grades: 304/304L, 316/316L, 2205
Stainless steel pipe is available in a wide range of sizes in welded and seamless construction, ex-stock or on indent.
|
Nominal Pipe Size
|
Outside Diameter (mm)
|
Wall Thickness (mm)
|
|
Sch 5S
|
Sch 10S
|
Sch 40S
|
Sch 80S
|
|
DN
|
NPS
|
WT
(mm)
|
Weight (kg/m)
|
WT
(mm)
|
Weight (kg/m)
|
WT
(mm)
|
Weight (kg/m)
|
WT
(mm)
|
Weight (kg/m)
|
|
6
|
⅛
|
10.3
|
|
|
1.24
|
0.28
|
1.73
|
0.37
|
2.41
|
0.47
|
|
8
|
¼
|
13.7
|
|
|
1.65
|
0.49
|
2.24
|
0.63
|
3.02
|
0.80
|
|
10
|
⅜
|
17.1
|
|
|
1.65
|
0.63
|
2.31
|
0.84
|
3.20
|
1.10
|
|
15
|
½
|
21.3
|
1.65
|
0.80
|
2.11
|
1.00
|
2.77
|
1.27
|
3.73
|
1.62
|
|
20
|
¾
|
26.7
|
1.65
|
1.02
|
2.11
|
1.28
|
2.87
|
1.69
|
3.91
|
2.20
|
|
25
|
1
|
33.4
|
1.65
|
1.29
|
2.77
|
2.09
|
3.38
|
2.50
|
4.55
|
3.24
|
|
32
|
1¼
|
42.2
|
1.65
|
1.65
|
2.77
|
2.69
|
3.56
|
3.39
|
4.85
|
4.47
|
|
40
|
1½
|
48.3
|
1.65
|
1.90
|
2.77
|
3.11
|
3.68
|
4.05
|
5.08
|
5.41
|
|
50
|
2
|
60.3
|
1.65
|
2.39
|
2.77
|
3.93
|
3.91
|
5.44
|
5.54
|
7.48
|
|
65
|
2½
|
73.0
|
2.11
|
3.69
|
3.05
|
5.26
|
5.16
|
8.63
|
7.01
|
11.41
|
|
80
|
3
|
88.9
|
2.11
|
4.52
|
3.05
|
6.46
|
5.49
|
11.29
|
7.62
|
15.27
|
|
90
|
3½
|
101.6
|
2.11
|
5.18
|
3.05
|
7.41
|
5.74
|
13.57
|
8.08
|
18.64
|
|
100
|
4
|
114.3
|
2.11
|
5.84
|
3.05
|
8.37
|
6.02
|
16.08
|
8.56
|
22.32
|
|
125
|
5
|
141.3
|
2.77
|
9.46
|
3.40
|
11.56
|
6.55
|
21.77
|
9.53
|
30.97
|
|
150
|
6
|
168.3
|
2.77
|
11.31
|
3.40
|
13.83
|
7.11
|
28.26
|
10.97
|
42.56
|
|
200
|
8
|
219.1
|
2.77
|
14.78
|
3.76
|
19.97
|
8.18
|
42.55
|
12.70
|
64.64
|
|
250
|
10
|
273.1
|
3.40
|
22.61
|
4.19
|
27.79
|
9.27
|
60.31
|
12.70
|
81.56
|
|
300
|
12
|
323.9
|
3.96
|
31.25
|
4.57
|
35.99
|
9.53
|
73.88
|
12.70
|
97.47
|
|
350
|
14
|
355.6
|
3.96
|
34.34
|
4.78
|
41.36
|
9.53
|
81.33
|
12.70
|
107.40
|
|
400
|
16
|
406.4
|
4.19
|
41.56
|
4.78
|
47.34
|
9.53
|
93.27
|
12.70
|
123.31
|
|
450
|
18
|
457
|
4.19
|
46.79
|
4.78
|
53.31
|
9.53
|
105.17
|
12.70
|
139.16
|
|
500
|
20
|
508
|
4.78
|
59.32
|
5.54
|
68.65
|
9.53
|
117.15
|
12.70
|
155.13
|
|
550
|
22
|
559
|
4.78
|
65.33
|
5.54
|
75.62
|
|
|
|
|
|
600
|
24
|
610
|
5.54
|
82.58
|
6.35
|
94.53
|
9.53
|
141.12
|
12.70
|
187.07
|
|
650
|
26
|
660
|
|
|
|
|
|
|
|
|
|
700
|
28
|
711
|
|
|
|
|
|
|
|
|
|
750
|
30
|
762
|
6.35
|
118.34
|
7.92
|
147.29
|
|
|
|
|
· Stainless steel pipe nominal dimensions listed in the table are based on ASTM A312M and ASME B36.19M.
· These dimensions are nominal – substantial tolerances apply – refer to Atlas Steels TechNote 12 and the ASTM and ASME standards for details.
· For other wall thicknesses and larger sizes consult ASME B36.10M; stainless steel pipe may be available to these carbon steel pipe sizes.
Welded Butt Welding Fittings – ASTM A403M & ASME B16.9
| |
| |
 |
|
Product range and theoretical weights (kg)
|
|
DN
|
Schedule 10S
|
Schedule 40S
|
|
900
Elbow
|
450
Elbow
|
Equal tee
|
Stub end type B
|
End cap
|
900
Elbow
|
450
Elbow
|
Equal tee
|
Stub end type B
|
End cap
|
|
15
|
0.06
|
0.03
|
0.09
|
0.07
|
0.03
|
0.08
|
0.04
|
0.10
|
0.08
|
0.04
|
|
20
|
0.07
|
0.03
|
0.13
|
0.09
|
0.05
|
0.08
|
0.04
|
0.17
|
0.11
|
0.07
|
|
25
|
0.14
|
0.08
|
0.28
|
0.16
|
0.08
|
0.15
|
0.11
|
0.29
|
0.17
|
0.10
|
|
32
|
0.23
|
0.11
|
0.49
|
0.22
|
0.10
|
0.26
|
0.17
|
0.59
|
0.25
|
0.18
|
|
40
|
0.30
|
0.17
|
0.68
|
0.25
|
0.11
|
0.40
|
0.23
|
0.86
|
0.31
|
0.20
|
|
50
|
0.50
|
0.25
|
0.85
|
0.43
|
0.13
|
0.70
|
0.40
|
1.28
|
0.61
|
0.23
|
|
65
|
0.85
|
0.48
|
1.41
|
0.57
|
0.19
|
1.40
|
0.77
|
2.19
|
0.80
|
0.27
|
|
80
|
1.25
|
0.63
|
1.77
|
0.72
|
0.25
|
2.20
|
1.08
|
3.31
|
1.13
|
0.42
|
|
100
|
2.10
|
1.08
|
3.46
|
1.09
|
0.68
|
4.47
|
1.47
|
5.27
|
1.87
|
1.14
|
|
125
|
3.65
|
1.82
|
5.44
|
1.47
|
1.11
|
6.80
|
2.84
|
9.63
|
2.79
|
2.13
|
|
150
|
5.45
|
2.72
|
8.03
|
2.15
|
1.42
|
10.89
|
5.44
|
10.99
|
3.57
|
3.23
|
|
200
|
10.20
|
5.33
|
15.65
|
3.22
|
2.38
|
21.54
|
10.77
|
20.91
|
6.07
|
5.19
|
|
250
|
18.15
|
9.75
|
26.76
|
5.13
|
4.45
|
38.56
|
19.27
|
35.38
|
10.07
|
9.00
|
|
300
|
25.80
|
13.62
|
39.46
|
8.16
|
7.50
|
59.42
|
29.71
|
62.14
|
14.29
|
15.00
|
|
350
|
36.29
|
18.37
|
48.53
|
10.88
|
8.17
|
79.38
|
35.15
|
79.31
|
17.14
|
16.00
|
|
400
|
47.63
|
23.81
|
58.97
|
12.70
|
10.67
|
99.79
|
45.81
|
99.79
|
20.41
|
21.00
|
|
450
|
59.87
|
29.94
|
79.65
|
17.23
|
13.00
|
129.73
|
59.40
|
129.73
|
27.21
|
26.00
|
|
500
|
99.80
|
49.90
|
103.42
|
21.77
|
17.00
|
162.38
|
74.84
|
162.39
|
29.94
|
34.00
|
|
600
|
140.61
|
70.31
|
155.58
|
27.21
|
26.00
|
225.89
|
105.23
|
225.90
|
38.55
|
52.00
|
Grades: Butt welding fittings are usually supplied as dual certified 304/304L or 316/316L
Welded Butt Welding Fittings – ASTM A403M & ASME B16.9
Grades: Butt Welding Fittings are usually supplied as dual certified 304/304L or 316/316L
Seamless Butt Welding Fittings – ASTM A403M & ASME B16.9
|
Product range and theoretical weights (kg)
|
|
DN
|
Schedule 10S
|
Schedule 40S
|
Schedule 80S
|
|
900 Elbow
|
450 Elbow
|
Equal tee
|
900 Elbow
|
450 Elbow
|
Equal tee
|
900 Elbow
|
450 Elbow
|
Equal tee
|
|
8
|
0.02
|
0.01
|
0.03
|
0.03
|
0.02
|
0.06
|
0.04
|
0.03
|
0.07
|
|
10
|
0.03
|
0.02
|
0.05
|
0.03
|
0.02
|
0.03
|
0.06
|
0.04
|
0.09
|
|
15
|
0.06
|
0.03
|
0.09
|
0.08
|
0.04
|
0.10
|
0.10
|
0.05
|
0.14
|
|
20
|
0.07
|
0.03
|
0.13
|
0.08
|
0.04
|
0.17
|
0.11
|
0.05
|
0.20
|
|
25
|
0.14
|
0.08
|
0.28
|
0.15
|
0.11
|
0.29
|
0.22
|
0.14
|
0.38
|
|
32
|
0.23
|
0.11
|
0.49
|
0.26
|
0.17
|
0.59
|
0.40
|
0.23
|
0.68
|
|
40
|
0.30
|
0.17
|
0.68
|
0.40
|
0.23
|
0.86
|
0.51
|
0.29
|
1.02
|
|
50
|
0.50
|
0.25
|
0.85
|
0.70
|
0.4
|
1.28
|
0.91
|
0.59
|
1.59
|
|
65
|
0.85
|
0.48
|
1.41
|
1.40
|
0.77
|
2.19
|
1.81
|
0.99
|
3.13
|
|
80
|
1.25
|
0.63
|
1.77
|
2.20
|
1.08
|
3.31
|
2.97
|
1.50
|
4.45
|
|
90
|
1.70
|
0.75
|
2.67
|
2.83
|
1.42
|
4.08
|
4.00
|
2.00
|
5.44
|
|
100
|
2.10
|
1.08
|
3.46
|
4.47
|
2.09
|
5.27
|
6.18
|
2.81
|
7.71
|
|
150
|
5.45
|
2.72
|
8.07
|
10.89
|
5.44
|
10.99
|
16.32
|
8.16
|
13.61
|
|
200
|
10.20
|
5.33
|
15.65
|
21.54
|
10.77
|
20.91
|
33.11
|
16.56
|
28.12
|
|
250
|
18.15
|
9.75
|
26.46
|
38.56
|
19.27
|
35.38
|
51.71
|
25.86
|
49.90
|
|
300
|
25.80
|
13.62
|
39.46
|
59.42
|
29.71
|
62.14
|
79.38
|
39.69
|
83.91
|
Seamless Butt Welding Fittings – ASTM A403 & ASME B16.9
|
Product range and theoretical weights (kg)
|
|
DN
|
Schedule 10S
|
Schedule 40S
|
Schedule 80S
|
|
Con reducer
|
Ecc reducer
|
Reducing tee
|
Con reducer
|
Ecc reducer
|
Reducing tee
|
Con reducer
|
Ecc reducer
|
Reducing tee
|
|
40x.25
|
0.19
|
0.19
|
0.60
|
0.26
|
0.26
|
0.76
|
0.34
|
0.34
|
0.90
|
|
50x25
|
0.28
|
0.28
|
0.73
|
0.40
|
0.40
|
1.10
|
0.54
|
0.54
|
1.37
|
|
50x40
|
0.31
|
0.31
|
0.76
|
0.45
|
0.45
|
1.15
|
0.59
|
0.59
|
1.43
|
|
80x.50
|
0.55
|
0.55
|
1.56
|
1.00
|
1.00
|
2.91
|
1.79
|
1.79
|
3.91
|
|
100x50
|
0.78
|
0.78
|
2.94
|
1.50
|
1.50
|
4.48
|
1.95
|
1.95
|
6.55
|
|
100x80
|
0.87
|
0.87
|
3.04
|
1.74
|
1.74
|
4.64
|
2.33
|
2.33
|
6.79
|
|
150x80
|
1.82
|
1.82
|
6.86
|
3.95
|
3.95
|
9.68
|
5.51
|
5.51
|
11.57
|
|
150x100
|
1.96
|
1.96
|
7.10
|
4.07
|
4.07
|
11.94
|
5.96
|
5.96
|
11.97
|
|
200x100
|
3.01
|
3.01
|
13.46
|
6.55
|
6.55
|
17.98
|
9.23
|
9.23
|
24.18
|
|
200x150
|
3.19
|
3.19
|
14.08
|
6.74
|
6.74
|
18.82
|
10.12
|
10.12
|
25.31
|
· Austenitic grades specified to ASTM A403M
· Duplex grades specified to ASTM A815M
· Buttwelding fittings are usually supplied as dual certified 304/304L or 316/316L
· Duplex grades 2205 and 2507 are also available in certain sizes.
· Stainless Steel Butt Welding Fittings – Dimensions
·
|
Butt Welding Fittings to ASME B16.9
|
|
Nominal size
|
OD
|
Elbows
|
Returns
|
Caps
|
Reducers Note 1
|
Stub Ends
|
|
Long
|
Short
|
Long
|
Short
|
Long
|
Short
|
Radius of Fillet
|
Diam of Lap
|
|
90
deg
|
45
deg
|
90
deg
|
|
DN
|
NPS
|
D
|
A
|
B
|
A
|
O
|
K
|
O
|
K
|
E
|
H
|
F
|
F
|
R
|
G
|
|
15
|
½
|
21.3
|
38
|
16
|
|
76
|
48
|
|
|
25
|
|
76
|
51
|
3
|
35
|
|
20
|
¾
|
26.7
|
38
|
19
|
|
76
|
51
|
|
|
25
|
38
|
76
|
51
|
3
|
43
|
|
25
|
1
|
33.4
|
38
|
22
|
25
|
76
|
56
|
51
|
41
|
38
|
51
|
102
|
51
|
3
|
51
|
|
32
|
11/4
|
42.2
|
48
|
25
|
32
|
95
|
70
|
64
|
52
|
38
|
51
|
102
|
51
|
5
|
64
|
|
40
|
11/2
|
48.3
|
57
|
29
|
38
|
114
|
83
|
76
|
62
|
38
|
64
|
102
|
51
|
6
|
73
|
|
50
|
2
|
60.3
|
76
|
35
|
51
|
152
|
106
|
102
|
81
|
38
|
76
|
152
|
64
|
8
|
92
|
|
65
|
21/2
|
73.0
|
95
|
44
|
64
|
190
|
132
|
127
|
100
|
38
|
89
|
152
|
64
|
8
|
106
|
|
80
|
3
|
88.9
|
114
|
51
|
76
|
229
|
159
|
152
|
121
|
51
|
89
|
152
|
64
|
10
|
127
|
|
90
|
31/2
|
101.6
|
133
|
57
|
89
|
267
|
184
|
178
|
140
|
64
|
102
|
152
|
76
|
10
|
140
|
|
100
|
4
|
114.3
|
152
|
64
|
102
|
305
|
210
|
203
|
159
|
64
|
102
|
152
|
76
|
11
|
157
|
|
125
|
5
|
141.3
|
190
|
79
|
127
|
381
|
262
|
254
|
197
|
76
|
127
|
203
|
76
|
11
|
185
|
|
150
|
6
|
168.3
|
229
|
95
|
152
|
457
|
313
|
305
|
237
|
89
|
140
|
203
|
89
|
13
|
218
|
|
200
|
8
|
219.1
|
305
|
127
|
203
|
610
|
414
|
406
|
313
|
102
|
152
|
203
|
102
|
13
|
270
|
|
250
|
10
|
273.0
|
381
|
159
|
254
|
762
|
518
|
508
|
391
|
127
|
178
|
254
|
127
|
13
|
324
|
|
300
|
12
|
323.8
|
457
|
190
|
305
|
914
|
619
|
610
|
467
|
152
|
203
|
254
|
152
|
13
|
381
|
|
350
|
14
|
355.6
|
533
|
222
|
356
|
1067
|
711
|
711
|
533
|
165
|
330
|
305
|
152
|
13
|
413
|
|
400
|
16
|
406.4
|
610
|
254
|
406
|
1219
|
813
|
813
|
610
|
178
|
356
|
305
|
152
|
13
|
470
|
|
450
|
18
|
457
|
686
|
286
|
457
|
1372
|
914
|
914
|
686
|
203
|
381
|
305
|
152
|
13
|
533
|
|
500
|
20
|
508
|
762
|
318
|
508
|
1524
|
1016
|
1016
|
762
|
229
|
508
|
305
|
152
|
13
|
584
|
|
550
|
22
|
559
|
838
|
343
|
559
|
1676
|
1118
|
1118
|
838
|
254
|
508
|
305
|
152
|
13
|
641
|
|
600
|
24
|
610
|
914
|
381
|
610
|
1829
|
1219
|
1219
|
914
|
267
|
508
|
305
|
152
|
13
|
692
|
|
650
|
26
|
660
|
991
|
405
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
700
|
28
|
711
|
1067
|
438
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
750
|
30
|
762
|
1143
|
470
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
800
|
32
|
813
|
1219
|
502
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
850
|
34
|
864
|
1295
|
533
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
900
|
36
|
914
|
1372
|
565
|
|
|
|
|
|
267
|
610
|
|
|
|
|
|
950
|
38
|
965
|
1448
|
600
|
|
|
|
|
|
305
|
610
|
|
|
|
|
|
1000
|
40
|
1016
|
1524
|
632
|
|
|
|
|
|
305
|
610
|
|
|
|
|
|
1050
|
42
|
1067
|
1600
|
660
|
|
|
|
|
|
305
|
610
|
|
|
|
|
|
1100
|
44
|
1118
|
1676
|
695
|
|
|
|
|
|
343
|
610
|
|
|
|
|
|
1150
|
46
|
1168
|
1753
|
727
|
|
|
|
|
|
343
|
711
|
|
|
|
|
|
1200
|
48
|
1219
|
1829
|
759
|
|
|
|
|
|
343
|
711
|
|
|
|
|
· Note 1: Reducer dimension “H” is based on large end nominal size.
·
·
·