Pressure (psig) and temperature (deg F) rating of ASTM A106 Grade B carbon steel pipe - temperatures ranging 100 F - 750 F. The pressure rating on this table do not mean design pressure (bar or psi). Factors such as temperature and material should be also considered in order to select a pressure rating.

 

Maximum Allowable Pressure (psig)
Pipe Size
(inches)
Pipe ScheduleTemperature (oF)
100200300400500600650700750
1"401)285728572857285728572857285727432476
802)395039503950395039503950395037923423
160575757575757575757575757575755264989
1 1/2"40211621162116211621162116211620321834
80298329832983298329832983298328642585
160433143314331433143314331433141573753
2"40178317831783178317831783178317121545
80257525752575257525752575257524722232
160421742174217421742174217421740493655
3"40169316931693169316931693169316251467
80239423942394239423942394239422982074
160360036003600360036003600360034563120
4"40143514351435143514351435143513781244
80207520752075207520752075207519921798
160337633763376337633763376337632412926
5"40125812581258125812581258125812081090
80185718571857185718571857185717831610
160320132013201320132013201320130732774
6"4011431143114311431143114311431098991
80179417941794179417941794179417221554
160308330833083308330833083308329602672
8"401006100610061006100610061006966872
80158615861586158615861586158615231375
160297629762976297629762976297628572579
10"40913913913913913913913876791
80150915091509150915091509150914481308
160295029502950295029502950295028322557

1) STD (standard) = schedule 40

2) XS (extra strong) = schedule 80