Pressure Ratings of Steel Pipe ASTM A53 Grade B & A106 Grade B Seamless

A106 Pipe

ASTM A106 Grade B/ A106 Gr.B

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

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

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

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
1¼ (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
1½ (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
2½ (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.

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A106 Pipe

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