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A106 Pipe

ASTM A106 Grade B/ A106 Gr.B

ASTM A106 Grade B/ A106 Gr.B seamless pipe pressure Ratings

ASTM A106 Grade B/ A106 Gr.B seamless pipe pressure Ratings

ASTM A106 Grade B/ A106 Gr.B seamless pipe pressure Ratings

Pressure/temperature rating of seamless carbon steel pipe to ASTM A106 Grade B.

Temperature Degrees F →
20 to 650 700 750 775
Allowable stress “S” lb/in →
15,000 14,350 12,950 11,875
         
Nominal Bore
And (OD) ins
Schedule no.Wall design-
nation
Wall thickness
inches
Maximum working pressure, lb/in

½
(0.840)

40
80
160

STD
XS

XXS

0.109
0.147
0.188
0.294

1103
2434
3947
8389

1055
2328
3776
8026

952
2101
3408
7243

873
1927
3125
6641

¾
(1.050)

40
80
160

STD
XS

XXS

0.113
0.154
0.219
0.308

997
2113
4017
6941

954
2021
3843
6640

861
1824
3468
5993

790
1673
3180
5495

1
(1.315)

40
80
160

STD
XS

XXS

0.133
0.179
0.250
0.358

1200
2222
3873
6658

1148
2125
3705
6369

1036
1918
3344
5748

950
1759
3066
5271


(1.660)

40
80
160

STD
XS

XXS

0.140
0.191
0.250
0.382

1078
1939
3006
5585

1032
1855
2876
5343

931
1674
2595
4821

855
1534
2380
4421


(1.900)

40
80
160

STD
XS

XXS

0.145
0.200
0.281
0.400

1005
1821
3093
5114

962
1742
2959
4893

868
1572
2671
4415

796
1442
2449
4049

2
(2.875)

40
80
160

STD
XS

XXS

0.154
0.218
0.344
0.436

905
1661
3237
4480

866
1589
3097
4286

781
1434
2795
3868

717
1315
2563
3547


(2.875)

40
80
160

STD
XS

XXS

0.203
0.276
0.375
0.552

1217
1942
2980
4934

1164
1858
2831
4720

1051
1677
2555
4260

963
1537
2343
3906

3
(3.500)

40
80
160

STD
XS

XXS

0.216
0.300
0.438
0.600

1094
1778
2939
4407

1046
1701
2812
4216

944
1535
2538
3804

866
1407
2327
3489

3 ½
(4,000)

40
80

STD
XS

0.226
0.318

1025
1669

980
1596

885
1440

811
1321

4
(4.500)

40
80
120
160

STD
XS

 

XXS

0.237
0.337
0.438
0.531
0.674

1433
2076
2740
3379
4394

1371
1986
2621
3233
4203

1237
1792
2365
2917
3793

1134
1643
2169
2675
3478

5
(5.563)

40
80
120
160

STD
XS

 

XXS

0.258
0.375
0.500
0.625
0.750

1259
1856
2520
3201
3905

1205
1776
2411
3062
3736

1087
1602
2176
2764
3372

997
1469
1995
2534
3092

6
(6.625)

20
80
120
160

STD
XS

 

XXS

0.280
0.432
0.562
0.719
0.864

1143
1793
2368
3082
3767

1094
1715
2266
2948
3604

987
1548
2045
2661
3252

905
1420
1875
2440
2982

8
(8.625)

20
30
40
60
80
100
120
140

160

 

STD

XS

 

XXS

0.250
0.277
0.322
0.406
0.500
0.594
0.719
0.312
0.875
0.906

777
861
1007
1277
1588
1900
2323
2647
2868
2977

744
824
963
1221
1519
1818
2222
2533
2743
2848

671
743
869
1102
1371
1640
2006
2286
2476
2570

615
682
797
1011
1257
1504
1839
2906
2270
2357

10
(10.750)

20
30
40
60
80
100
120
140
160

 

STD
XS

 

XXS

0.250
0.307
0.365
0.500
0.594
0.719
0.844
1.000
1.125

621
766
912
1263
1510
1842
2182
2612
2963

594
733
872
1209
1444
1762
2088
2499
2835

536
661
787
1091
1303
1590
1884
2255
2558

492
606
722
1000
1195
1458
1728
2068
2346

12
(12.750)

20
30

40

60
80
100
120
140
160

 

STD

XS

 

XXS

0.250
0.333
0.375
0.406
0.500
0.562
0.688
0.844
1.000
1.125
1.312

522
693
788
854
1060
1195
1472
1823
2178
2468
2911

500
663
754
817
1014
1143
1408
1744
2084
2361
2785

451
598
680
738
915
1031
1271
1574
1881
2130
2513

414
548
624
676
839
946
1165
1443
1725
1953
2304

14
(14.000)

10
20
30
40

60
80
100
120
140
160

 

STD

XS

0.250
0.312
0.375
0.438
0.500
0.594
0.750
0.938
1.094
1.250
1.406

475
594
716
839
963
1148
1460
1846
2169
2500
2835

455
569
685
803
921
1099
1397
1766
2075
2392
2712

410
513
618
724
831
991
1261
1594
1873
2159
2448

376
470
567
664
762
909
1156
1461
1717
1979
2244

16
(16.000)

10
20
30
40
60
80
100
120
140
160

 

STD
XS

0.250
0.312
0.375
0.500
0.656
0.844
1.031
1.219
1.438
1.594

415
519
625
840
1108
1439
1771
2113
2517
2812

397
496
598
803
1060
1376
1694
2022
2408
2690

358
448
540
725
957
1242
1529
1824
2173
2427

329
411
495
665
877
1139
1402
1673
1993
2226

18
(18.000)

10
20

30

40
60
80
100
120
140
160

 

STD

XS

0.250
0.312
0.375
0.438
0.500
0.562
0.750
0.938
1.156
1.375
1.562
1.781

369
461
555
649
744
838
1126
1420
1766
2118
2426
2790

353
441
531
621
712
802
1077
1359
1690
2027
2321
2669

318
398
479
561
643
724
972
1226
1525
1829
2094
2408

292
365
439
514
589
664
891
1124
1398
1677
1920
2208

20
(20.000)

10
20
30
40
60
80
100
120
140
160

 

STD
XS

0.250
0.375
0.500
0.594
0.812
1.031
1.281
1.500
1.750
1.969

331
499
669
797
1098
1404
1760
2079
2446
2776

317
477
640
762
1050
1343
1684
1989
2340
2655

286
430
577
688
948
1212
1520
1795
2112
2396

262
395
529
631
869
1111
1394
1646
1937
2197

24
(24.000)

10
20

30
40
60
80
100
120
140
160

 

STD
XS

0.250
0.375
0.500
0.562
0.688
0.969
1.219
1.531
1.812
2.062
2.344

276
415
556
625
768
1091
1383
1753
2093
2399
2752

264
397
532
598
735
1044
1323
1677
2003
2295
2633

238
358
480
540
663
942
1194
1514
1807
2071
2376

218
328
440
495
608
864
1095
1388
1657
1899
2178

*Section 1 of code for pressure piping allows the use of seamless pipe to ASTMA -53 up to 600 lb/in ‘ max.