Uns n08020 or as referred to as Alloy 20 is an austenitic stainless steel grade. The astm b729 uns n08020 pipe is specifically designed to be used for applications that involve the use of sulfuric acid.The reason for its resistance to sulphuric acid is the addition of copper in its alloy.
ASTM B729 UNS N08020 Pipe
ASME SB729 UNS N08020 Seamless Tube
ASTM B729 N08020 ERW Pipe
Since the alloy has good resistance to corrosion, the asme b729 n08020 seamless pipe finds applications in fields such as chemical, power generation, petrochemical, and plastics industries as well. In comparison to its austenitic counterpart stainless steel grade 304, the sb729 uns n08020 pipe has better resistance properties with regards to pitting and chloride ion corrosion. Although the corrosion resistance properties of Alloy 20 is on par with grade 316, this being said the asme sb729 uns n08020 tube is often chosen for use in those applications where grade 316 stainless steel tubes would be susceptible to stress related corrosion cracking problems.
Under the specification astm b729, the material i.e. b729 n08020 pipe is required to be furnished in any of the following conditions i.e. either stabilized annealed condition or solution annealed condition. Further, the b729 uns n08020 seamless tube could also be furnished in an annealed condition, as well. Tests such as Hydrostatic test and nondestructive electric test are to be conducted on the astm b729 n08020 erw pipe.
ASTM Specification | ASTM B729 |
---|---|
Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
ASTM B729 UNS N08020 Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
ASME SB729 UNS N08020 Welded Pipe Size | 5.0 - 1219.2 mm |
SB729 N08020 EFW Pipe size | 5.0 - 1219.2 mm |
Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
ASME SB729 N08020 Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
ASTM B729 UNS N08020 Pipe Length | Single Random, Double Random, Standard & Cut length Pipe |
Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
Form | ASTM B729 UNS N08020 Pipe are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc. |
Type of B729 UNS N08020 Pipe | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW ASTM B729 UNS N08020 Pipe |
ASTM B729 UNS N08020 Pipe End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
Marking on ASTM B729 N08020 Pipe | All ASTM B729 UNS N08020 Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
We can also cut, thread, and groove ASME SB729 UNS N08020 Pipe to meet your specifications. ASTM B729 UNS N08020 Pipe Dimension ANSI/ ASME B36.10, B36.19, B2.1 |
ASTM B729 UNS N08020 Pipe | 4 inch SB729 N08020 Seamless Tube |
SB729 N08020 Tubing | ASME SB729 N08020 Welded Pipes |
SB 729 UNS N08020 Seamless Steel Pipe | ASME SB 729 N08020 Cold Drawn Welded Tubes |
SB729 N08020 Welded Pipe | B729 N08020 Cold Drawn Tubes |
ASME SB729 N08020 ERW Pipe | Schedule 5S SB 729 UNS N08020 Seamless Tube |
B729 N08020 EFW Tubing | Schedule 40 ASTM B729 N08020 Pipe |
SB 729 UNS N08020 Cold Drawn Seamless Pipes | ASME SB729 N08020 Precision Tube |
ASTM B729 UNS N08020 Seamless Steel Precision Pipe | High pressure ASME SB729 UNS N08020 Pipe |
ASTM B729 N08020 Cold Drawn Seamless Tubing | B729 UNS N08020 Electropolished Pipe |
SB729 N08020 Custom Pipe | ASTM B729 UNS N08020 Cold Drawn Tubing |
ASME SB 729 N08020 Round Tube | ASTM B729 N08020 Exhaust Pipe |
B729 UNS N08020 Square Pipe | ASME SB729 N08020 Thin Wall Pipe |
ASTM B729 N08020 Rectangular Pipe | Small diameter B729 UNS N08020 pipe |
SB 729 UNS N08020 Hexagonal Pipe | SB729 N08020 Pipe material |
ASTM B729 UNS N08020 Bush Hex Pipe | ASTM B729 N08020 Precision Steel Tubes |
B729 N08020 Fabricated Pipe | ASME SB 729 N08020 Annealed Tube |
ASME SB 729 N08020 Beveled End Pipe | B729 N08020 Rectangle Pipe |
ASME SB729 UNS N08020 Cold Drawn Pipe | Cold Drawn ASTM B729 UNS N08020 Welded Pipe |
1/8" IPS(.405"O. D.)
|
3 1/2" IPS( 4.000"O. D.)
|
---|---|
SCH 40, 80
|
SCH 10, 40, 80, 160, XXH
|
1/4" IPS(.540"O. D.)
|
4" IPS(4.500"O. D.)
|
SCH 10, 40, 80
|
SCH 10, 40, 80, 160, XXH
|
3/8" IPS(.675"O. D.)
|
5" IPS( 5.563"O. D.)
|
SCH 10, 40, 80
|
SCH 10, 40, 80, 160, XXH
|
1/2" IPS(.840"O. D.)
|
6" IPS(6.625"O. D.)
|
SCH 5, 10, 40, 80, 160, XXH
|
SCH 5, 10, 40, 80, 120, 160, XXH
|
3/4" IPS(1.050"O. D.)
|
8 ” IPS(8.625"O. D.)
|
SCH 10, 40, 80, 160, XXH
|
SCH 5, 10, 40, 80, 120, 160, XXH
|
1" IPS:(1.315′O. D.)
|
10" IPS(10.750"O. D.)
|
SCH 5, 10, 40, 80, 160, XXH
|
SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
|
1-1/4" IPS(1.660"O. D.)
|
12" IPS(12.750"O. D.)
|
SCH 10, 40, 80, 160, XXH
|
SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
|
1-1/2" IPS(1.900"O. D.)
|
14" IPS(14.000"O. D.)
|
SCH 10, 40, 80, 160, XXH
|
SCH10 (.188), SCH40 (.375)
|
2" IPS(2.375"O. D.)
|
16" IPS(16.000"O. D.)
|
SCH 10, 40, 80, 160, XXH
|
SCH10(.188), SCH40(.375)
|
2 1/2" IPS(2.875"O. D.)
|
18" IPS (18.000"O. D.)
|
SCH 10, 40, 80, 160, XXH
|
SCH-40 (.375)
|
3" IPS( 3.500"O. D.)
|
|
SCH 5, 10, 40, 80, 160, XXH
|
NPS
|
Outside Diameter
|
Wall Thickness
|
Weight
|
Weight
|
|||
in
|
mm
|
in
|
mm
|
Sched
|
kg/Mtr
|
Lb/ft
|
|
1/2″
|
0.840
|
21
|
0.109
|
2.769
|
40 STD
|
1.268
|
0.851
|
0.147
|
3.734
|
80 STD
|
1.621
|
1.088
|
|||
3/4″
|
1.050
|
27
|
0.113
|
2.870
|
40 STD
|
1.684
|
1.131
|
0.154
|
3.912
|
80 STD
|
2.195
|
1.474
|
|||
1″
|
1.315
|
33
|
0.133
|
3.378
|
40 STD
|
2.501
|
1.679
|
0.179
|
4.547
|
80 STD
|
3.325
|
2.172
|
|||
1 1/4″
|
1.660
|
42
|
0.140
|
3.556
|
40 STD
|
3.385
|
2.273
|
0.191
|
4.851
|
80 STD
|
4.464
|
2.997
|
|||
1 1/2″
|
1.900
|
48
|
0.145
|
3.683
|
40 STD
|
4.048
|
2.718
|
0.200
|
5.080
|
80 STD
|
5.409
|
3.361
|
|||
2″
|
2.375
|
60
|
0.154
|
3.912
|
40 STD
|
5.441
|
3.653
|
0.218
|
5.537
|
80 STD
|
7.480
|
5.022
|
|||
2 1/2″
|
2.875
|
73
|
0.203
|
5.516
|
40 STD
|
8.629
|
5.793
|
0.276
|
7.010
|
80 STD
|
11.411
|
7.661
|
|||
3″
|
3.500
|
89
|
0.216
|
5.486
|
40 STD
|
11.284
|
7.576
|
0.300
|
7.620
|
80 STD
|
15.272
|
10.253
|
|||
4″
|
4.500
|
114
|
0.237
|
6.020
|
16.073
|
10.790
|
|
0.337
|
8.560
|
22.318
|
14.983
|
||||
6″
|
6.625
|
168
|
0.188
|
4.775
|
19.252
|
12.924
|
|
0.203
|
5.516
|
20.739
|
13.923
|
||||
0.219
|
5.563
|
22.318
|
14.983
|
||||
0.250
|
6.350
|
25.354
|
17.021
|
||||
0.280
|
7.112
|
40 STD
|
58.263
|
18.974
|
|||
0.312
|
7.925
|
31.334
|
21.036
|
||||
0.375
|
9.525
|
37.285
|
25.031
|
||||
0.432
|
10.973
|
80 XHY
|
42.561
|
28.573
|
|||
0.500
|
12.700
|
48.719
|
32.708
|
||||
8″
|
8.625
|
219
|
0.188
|
4.775
|
25.233
|
16.940
|
|
0.203
|
5.156
|
27.198
|
18.259
|
||||
0.219
|
5.563
|
29.286
|
19.661
|
||||
0.250
|
6.350
|
20
|
33.308
|
22.361
|
|||
0.277
|
7.036
|
30
|
36.786
|
24.696
|
|||
0.322
|
8.179
|
40
|
42.352
|
28.554
|
|||
0.375
|
9.525
|
49.216
|
33.041
|
||||
0.406
|
10.312
|
60
|
53.085
|
35.638
|
|||
0.500
|
12.700
|
80 XHY
|
64.627
|
43.388
|
|||
10″
|
10.750
|
273
|
0.188
|
4.775
|
31.588
|
21.207
|
|
0.219
|
5.563
|
36.689
|
24.631
|
||||
0.250
|
6.350
|
20
|
41.759
|
28.035
|
|||
0.307
|
7.798
|
30
|
51.002
|
34.240
|
|||
0.344
|
8.738
|
56.946
|
38.231
|
||||
0.365
|
9.271
|
40 STD
|
63.301
|
40.483
|
|||
0.438
|
11.125
|
71.852
|
48.238
|
||||
0.500
|
12.700
|
60 XHY
|
81.530
|
54.735
|
|||
0.594
|
15.088
|
80
|
95.969
|
64.429
|
|||
12″
|
12.750
|
324
|
0.188
|
4.775
|
37.570
|
25.222
|
|
0.219
|
5.563
|
43.657
|
29.309
|
||||
0.250
|
6.350
|
49.713
|
33.375
|
||||
0.281
|
7.137
|
55.739
|
37.420
|
||||
0.312
|
7.925
|
61.735
|
41.445
|
||||
0.375
|
9.525
|
73.824
|
49.562
|
||||
0.406
|
10.312
|
79.727
|
53.525
|
||||
0.500
|
12.700
|
97.438
|
65.415
|
||||
0.562
|
14.275
|
108.966
|
73.154
|
||||
14″
|
14.000
|
356
|
0.188
|
4.775
|
41.308
|
27.732
|
|
0.219
|
5.563
|
48.012
|
32.233
|
||||
0.250
|
6.350
|
20
|
54.685
|
36.713
|
|||
0.281
|
7.137
|
61.327
|
41.172
|
||||
0.312
|
7.925
|
67.939
|
45.611
|
||||
0.375
|
9.525
|
STD
|
81.281
|
54.568
|
|||
0.438
|
11.125
|
40
|
94.498
|
63.441
|
|||
0.500
|
12.700
|
XHY
|
107.381
|
72.090
|
|||
0.625 |
15.875
|
132.983
|
89.278
|
||||
16”
|
16.000
|
406
|
0.188
|
4.775
|
47.290
|
21.748
|
|
0.219
|
5.563
|
54.980
|
36.910
|
||||
0.250
|
6.350
|
10
|
62.639
|
42.053
|
|||
0.281
|
7.137
|
70.268
|
47.174
|
||||
0.312
|
7.925
|
20
|
77.866
|
52.275
|
|||
0.344
|
8.738
|
85.677
|
57.519
|
||||
0.375
|
9.525
|
30 STD |
93.213
|
62.578
|
|||
0.438
|
11.125
|
108.433
|
72.797
|
||||
0.500
|
12.700
|
40 XHY |
123.289
|
82.770
|
|||
18″
|
18.000
|
457
|
0.219
|
5.563
|
61.948
|
41.588
|
|
0.250
|
6.350
|
70.593
|
47.393
|
||||
0.281
|
7.137
|
79.208
|
53.176
|
||||
0.312
|
7.925
|
20
|
87.792
|
58.939
|
|||
0.375
|
9.525
|
STD
|
105.144
|
70.588
|
|||
0.438
|
11.125
|
30
|
122.369
|
82.152
|
|||
0.500
|
12.700
|
XHY
|
139.198
|
93.450
|
|||
0.562
|
14.275
|
40
|
155.904
|
104.666
|
|||
0.625
|
15.875
|
172.754
|
115.978
|
||||
20″
|
20.000
|
508
|
0.250
|
6.350
|
78.547
|
52.733
|
|
0.282
|
7.163
|
88.458
|
59.386
|
||||
0.312
|
7.925
|
97.719
|
65.604
|
||||
0.375
|
9.525
|
20 STD
|
117.075
|
78.598
|
|||
0.438
|
11.125
|
136.305
|
91.508
|
||||
0.500
|
12.700
|
30 XHY
|
155.106
|
104.130
|
|||
0.594
|
15.088
|
40
|
183.378
|
123.110
|
|||
0.625
|
15.875
|
192.640
|
129.328
|
||||
0.688
|
17.475
|
211.368
|
141.901
|
||||
24″
|
24.000
|
610
|
0.250
|
6.350
|
94.456
|
63.413
|
|
0.281
|
7.137
|
106.029
|
71.183
|
||||
0.312
|
7.925
|
117.573
|
18.932
|
||||
0.375
|
9.525
|
20 STD
|
140.938
|
64.618
|
|||
0.438
|
11.125
|
164.176
|
110.219
|
||||
0.500
|
12.700
|
XHY
|
186.923
|
125.490
|
|||
0.625
|
15.875
|
232.410
|
156.028
|
||||
0.688
|
17.475
|
40
|
255.148
|
171.293
|
|||
0.750
|
19.050
|
277.401
|
186.233
|
||||
30″
|
30.000
|
762
|
0.250
|
6.350
|
118.318
|
79.433
|
|
0.281
|
7.137
|
132.851
|
89.189
|
||||
0.312
|
7.925
|
10
|
147.353
|
98.925
|
|||
0.375
|
9.525
|
STD
|
176.731
|
118.648
|
|||
0.438
|
11.125
|
205.983
|
138.286
|
||||
0.500
|
12.700
|
20 XHY
|
234.647
|
157.530
|
|||
0.625
|
15.875
|
30
|
292.066
|
196.078
|
|||
0.688
|
17.475
|
320.817
|
215.380
|
||||
0.750
|
19.050
|
348.988
|
234.293
|
||||
36″
|
36.000
|
914
|
0.250
|
6.350
|
142.180
|
95.453
|
|
0.281
|
7.137
|
159.672
|
107.196
|
||||
0.312
|
7.925
|
10
|
177.133
|
118.918
|
|||
0.375
|
9.525
|
STD
|
215.525
|
142.678
|
|||
0.438
|
11.125
|
247.790
|
166.353
|
||||
0.500
|
12.700
|
20 XHY
|
282.372
|
198.570
|
|||
0.625
|
15.875
|
351.723
|
236.128
|
||||
0.688 |
17.475
|
386.487
|
259.467
|
||||
0.750 |
19.050
|
420.576
|
282.353
|
||||
42″
|
42.000
|
1067
|
0.312
|
7.925
|
206.914
|
138.911
|
|
0.375
|
9.525
|
STD
|
248.319
|
166.708
|
|||
0.500
|
12.700
|
XHY
|
33.097
|
221.610
|
|||
0.750
|
19.050
|
492.163
|
330.413
|
||||
48″
|
48.000
|
1219
|
0.375
|
9.525
|
STD
|
284.112
|
190.738
|
0.438
|
11.125
|
331.404
|
222.487
|
||||
0.500
|
12.700
|
XHY
|
377.822
|
253.650
|
|||
0.750
|
19.050
|
563.750
|
378.473
|
||||
0.875
|
22.225
|
655.969
|
440.383
|