Allowable Working Pressure Carbon Steel and High Yield Strength Pipe

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Allowable Working Pressure Carbon Steel and High Yield Strength Pipe

Carbon Steel and High Yield Strength Pipe (Values apply to A106, API 5LX pipe having the same specified minimum yield strength as shown)
Nom Pipe Size	O.D.	Wall Thk.	Allowable Working Pressures up to 250⁰F, in psig
			Construction type Design Factors
			Type A. F = 0.72"					Type B. F = 0.60
			GR.B					GR.B
			35,000	42,000	46,000	52,000	60,000	35,000	42,000	46,000	52,000	60,000
2	(STD) 2.375	.154	3268					2723
2	(STD) 2.375	.218	4626					3855
3	3.500 (STD)	.125	1800					1500
		.156	2246					1872
		.188	2707					2256
		.216	3110					2592
		.250	3600					3000
		.281	4046					3372
		.300	4320					3600
4	4.500 (STD)	.125	1400	1680	1840			1167	1400	1533
		.156	1747	2097	2296			1456	1747	1913
		.188	2105	2526	2767			1754	2105	2306
		.219	2453	2943	3223			2044	2453	2686
		.237	2654	3185	3488			2212	2654	2907
		.250	2800	3360	3680			2333	2800	3067
		.281	3147	3776	4136			2623	3147	3447
		.312	3494	4193	4593			2912	3494	3827
		.337	3774	4530	4961			3145	3775	4134
6	6.625 (STD)	.156	1187	1424	1560	1763		989	1187	1300	1469
		.188	1429	1716	1880	2124		1192	1430	1567	1770
		.219	1666	2000	2190	2475		1388	1666	1825	2063
		.250	1902	2282	2500	2826		1585	1902	2083	2355
		.280	2130	2556	2799	3164		1775	2130	2333	2637
		.312	2373	2848	3120	3527		1978	2374	2600	2933
		.375	2853	3424	3750	4237		2377	2853	3125	3531
		.132	3287	3943	4319	4883		2739	3286	3599	4069
8	8.625 (STD)	.156	912	1094	1198	1354		760	912	998	1128
		.188	1098	1318	1444	1632		915	1098	1203	1360
		.203	1186	1424	1559	1762		989	1186	1299	1469
		.219	1280	1535	1681	1901		1067	1280	1401	1584
		.250	1461	1753	1920	2170		1217	1461	1600	1809
		.277	1618	1942	2128	2405		1349	1618	1773	2004
		.312	1823	2189	2398	2709		1520	1823	1997	2258
		.322	1882	2258	2473	2796		1568	1882	2061	2329
		.344	2011	2412	2642	2988		1676	2011	2202	2490
		.375	2191	2628	2880	3256		1826	2191	2399	2713
		.438	2560	3071	3364	3803		2133	2560	2804	3170
		.500	2922	3506	3840	4341		2435	2922	3200	3617
10	10.750 (STD)	.188	881	1058	1158	1310		733	881	965	1091
		.203	959	1143	1251	1415		794	952	1043	1179
		.219	1026	1231	1348	1525		855	1026	1124	1271
		.250	1172	1407	1540	1741		977	1172	1284	1451
		.279	1309	1570	1719	1944		1091	1309	1433	1620
		.307	1440	1728	1892	2138		1200	1440	1577	1782
		.344	1613	1935	2120	2396		1344	1613	1767	1997
		.365	1711	2054	2249	2542		1426	1711	1874	2119
		.438	2054	2464	2700	3051		1712	2054	2250	2543
		.500	2344	2813	3081	3483		1953	2344	2567	2902
12	12.750 (STD)	.188	743	892	977	1104		619	743	814	920
		.203	803	963	1055	1193		669	803	879	995
		.219	866	1039	1138	1287		722	866	948	1073
		.250	988	1186	1299	1468		824	988	1082	1224
		.281	1111	1332	1460	1651		926	1111	1217	1376
		.312	1233	1480	1620	1832		1028	1233	1350	1527
		.330	1305	1566	1715	1939		1088	1305	1430	1616
		.344	1359	1631	1786	2020		1133	1359	1488	1683
		.375	1482	1779	1948	2202		1235	1482	1624	1835
		.406	1606	1926	2110	2385		1338	1606	1758	1988
		.438	1732	2077	2275	2572		1443	1732	1896	2144
		.500	1976	2372	2598	2936		1647	1976	2165	2447
Type A construction also applicable to "Liquid Petroleum Transportation Piping Code." ANSI B31.4-1979

Carbon Steel and High Yield Strength Pipe (Values apply to A106, API 5LX pipe having the same specified minimum yield strength as shown)
Nom Pipe Size	O.D.	Wall Thk.	Allowable Working Pressures up to 250⁰F, in psig
			Construction type Design Factors
			Type C. F = 0.50					Type D.F = 0.40
			GR.B					GR.B
			35,000	42,000	46,000	52,000	60,000	35,000	42,000	46,000	52,000	60,000
2	(STD) 2.375	.154	2270					1816
2	(STD) 2.375	.218	3213					2570
3	3.500 (STD)	.125	1250					1000
		.156	1560					1248
		.188	1880					1504
		.216	2160					1728
		.250	2500					2000
		.281	2810					2248
		.300	3000					2400
4	4.500 (STD)	.125	973	1167	1278			778	933	1022
		.156	1214	1456	1595			971	1165	1276
		.188	1462	1755	1922			1170	1404	1537
		.219	1704	2044	2239			1363	1635	1791
		.237	1844	2212	2423			1475	1770	1938
		.250	1945	2333	2556			1556	1869	2044
		.281	2186	2622	2873			1748	2098	2298
		.312	2427	2912	3190			1941	2330	2552
		.337	2621	3146	3445			2097	2516	2756
6	6.625 (STD)	.156	824	989	1083	1224		659	791	866	980
		.188	993	1192	1306	1475		794	954	1044	1180
		.219	1157	1389	1521	1719		926	1111	1216	1375
		.250	1321	1585	1736	1963		1057	1268	1389	1570
		.280	1479	1775	1944	2198		1183	1420	1555	1758
		.312	1649	1978	2167	2449		1319	1582	1733	1959
		.375	1981	2378	2604	2943		1585	1902	2083	2354
		.132	2283	2738	3000	3391		1826	2191	2400	2713
8	8.625 (STD)	.156	633	760	832	940		506	608	666	752
		.188	763	915	1003	1133		610	732	802	907
		.203	824	989	1083	1224		659	791	866	979
		.219	889	1067	1168	1320		711	853	934	1056
		.250	1014	1217	1333	1507		812	974	1067	1206
		.277	1124	1349	1478	1670		899	1079	1182	1336
		.312	1266	1520	1664	1881		1013	1216	1331	1505
		.322	1307	1568	1717	1941		1045	1254	1374	1553
		.344	1396	1676	1835	2075		1117	1340	1468	1660
		.375	1521	1826	1999	2261		1217	1460	1599	1808
		.438	1778	2133	2336	2641		1422	1706	1869	2113
		.500	2029	2435	2667	3014		1623	1948	2133	2412
10	10.750 (STD)	.188	612	735	804	909		490	588	644	728
		.203	661	794	869	983		529	635	695	786
		.219	713	855	936	1059		570	684	749	847
		.250	814	977	1070	1209		651	781	856	967
		.279	909	1091	1194	1350		727	872	955	1080
		.307	1000	1200	1314	1486		800	960	1051	1189
		.344	1120	1344	1473	1664		896	1075	1178	1331
		.365	1188	1426	1562	1766		951	1141	1249	1412
		.438	1426	1712	1875	2119		1141	1369	1500	1695
		.500	1628	1953	2140	2419		1302	1563	1712	1935
12	12.750 (STD)	.188	516	619	678	767		413	495	543	613
		.203	558	669	733	829		446	535	586	663
		.219	601	722	790	894		481	577	632	715
		.250	686	824	902	1020		549	659	722	816
		.281	771	926	1014	1146		617	740	811	917
		.312	856	1028	1125	1273		685	822	900	1018
		.330	906	1088	1191	1346		725	870	953	1077
		.344	944	1133	1240	1403		755	906	992	1122
		.375	1029	1235	1353	1529		824	988	1082	1224
		.406	1115	1338	1465	1656		892	1070	1172	1325
		.438	1203	1443	1580	1786		962	1154	1264	1429
		.500	1373	1647	1804	2039		1098	1318	1443	1631
Type A construction also applicable to "Liquid Petroleum Transportation Piping Code." ANSI B31.4-1979

References:

FIG. 17-27 (GPSA BOOK)
Gas Transmission and Distribution Piping
Code for Pressure Piping ANSI B31.8-1982