Temperature derating factors of steel pipes due to stress are indicated below:
|< 250||< 121||1.00|
|250 - 300||121 - 149||0.97|
|300 - 350||149 - 177||0.93|
|350 - 400||177 - 204||0.90|
|400 - 450||204 - 233||0.87|
Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more.
Pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings
ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 300 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
Maximum temperature and pressure ratings of flanges conforming dimensions ASME B16.5 and materials specification ASTM A-105.
Pressure (psig) and temperature (deg F) ratings for A-53 B and A-106 B, A333, A334 and API 5L carbon steel pipes - temperatures ranging 100 degF - 700 degF.
Pressure (kPa)> and temperature (degC) ratings of ASTM A-106, API 5L and ASTM A-53 Seamless Carbon Steel Pipes - temperatures ranging -29 degC - 450 degC.
CTS (Copper Tube Sized) CPVC (Chlorinated Poly Vinyl Chloride) tubes temperature and pressure ratings.
Allowable wall stress in pipes according ASME M31.3.
Allowable pressure for standard seamless A312-TP316/316L stainless steel pipes - temperatures 100oF to 750oF.
Increased temperatures derates the strength of thermoplastic piping materials.