Pressure and Temperature Ratings of ASTM A106 Grade B Carbon Steel Pipes

Pressure (psig) and temperature (deg F) ratings of ASTM A106 Grade B carbon steel pipes – temperatures ranging 100 oF – 750 oF

Ratings are given for standard seamless pipes at temperatures ranging 100 oF – 750 oF. Ratings in psig based on ANSI/ASME B 31.1.

Maximum Allowable Pressure (psig)
Pipe Size (inches)	Pipe Schedule	Temperature (^oF)
Pipe Size (inches)	Pipe Schedule	100	200	300	400	500	600	650	700	750
1/2″	40¹⁾	3730	3730	3730	3730	3730	3730	3730	3581	3233
	80²⁾	5252	5252	5252	5252	5252	5252	5252	5042	4552
	160	6920	6920	6920	6920	6920	6920	6920	6643	5997
3/4″	40	2447	3059	3059	3059	3059	3059	3059	2937	2651
	80	4299	4299	4299	4299	4299	4299	4299	4127	3725
	160	6393	6393	6393	6393	6393	6393	6393	6137	5541
1″	40	2857	2857	2857	2857	2857	2857	2857	2743	2476
	80	3950	3950	3950	3950	3950	3950	3950	3792	3423
	160	5757	5757	5757	5757	5757	5757	5757	5526	4989
1 1/2″	40	2116	2116	2116	2116	2116	2116	2116	2032	1834
	80	2983	2983	2983	2983	2983	2983	2983	2864	2585
	160	4331	4331	4331	4331	4331	4331	4331	4157	3753
2″	40	1783	1783	1783	1783	1783	1783	1783	1712	1545
	80	2575	2575	2575	2575	2575	2575	2575	2472	2232
	160	4217	4217	4217	4217	4217	4217	4217	4049	3655
3″	40	1693	1693	1693	1693	1693	1693	1693	1625	1467
	80	2394	2394	2394	2394	2394	2394	2394	2298	2074
	160	3600	3600	3600	3600	3600	3600	3600	3456	3120
4″	40	1435	1435	1435	1435	1435	1435	1435	1378	1244
	80	2075	2075	2075	2075	2075	2075	2075	1992	1798
	160	3376	3376	3376	3376	3376	3376	3376	3241	2926
5″	40	1258	1258	1258	1258	1258	1258	1258	1208	1090
	80	1857	1857	1857	1857	1857	1857	1857	1783	1610
	160	3201	3201	3201	3201	3201	3201	3201	3073	2774
6″	40	1143	1143	1143	1143	1143	1143	1143	1098	991
	80	1794	1794	1794	1794	1794	1794	1794	1722	1554
	160	3083	3083	3083	3083	3083	3083	3083	2960	2672
8″	40	1006	1006	1006	1006	1006	1006	1006	966	872
	80	1586	1586	1586	1586	1586	1586	1586	1523	1375
	160	2976	2976	2976	2976	2976	2976	2976	2857	2579
10″	40	913	913	913	913	913	913	913	876	791
	80	1509	1509	1509	1509	1509	1509	1509	1448	1308
	160	2950	2950	2950	2950	2950	2950	2950	2832	2557
12″	40	855	855	855	855	855	855	855	819	741

¹⁾ STD (standard) = schedule 40

²⁾ XS (extra strong) = schedule 80