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ANSI B16.5 - Steel Pipe Flanges - Maximum Pressure and Temperature Ratings - Group 1.2

Non-shock pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings

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Maximum allowable non-shock pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings according the American National Standard ANSI B16.5 - 1988.

Maximum Allowable non-shock Pressure (psig)
Temperature (^oF)	Pressure Class (lb)
	150	300	400	600	900	1500	2500
	Hydrostatic Test Pressure (psig)
	450	1125	1500	2225	3350	5575	9275
-20 to 100	290	750	1000	1500	2250	3750	6250
200	260	750	1000	1500	2250	3750	6250
300	230	730	970	1455	2185	3640	6070
400	200	705	940	1405	2110	3520	5865
500	170	665	885	1330	1995	3325	5540
600	140	605	805	1210	1815	3025	5040
650	125	590	785	1175	1765	2940	4905
700	110	555	740	1110	1665	2775	4630
750	95	505	675	1015	1520	2535	4230
800	80	410	550	825	1235	2055	3430
850	65	320	425	640	955	1595	2655
900	50	225	295	445	670	1115	1855
950	35	135	185	275	410	685	1145
1000	20	85	115	170	255	430	715

The values in this table apply to materials Group 1.2

Pressure Ratings Group 1.1

For other Material Groups the Pressure-Temperature Ratings are different. Most carbon steels are only acceptable for temperatures below 800 F.

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Related Topics

Pressure Ratings - Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more

Related Documents

ANSI - American National Standards Institute - ANSI provides a forum for development of American national standards
ANSI B16.5 - Steel Pipe Flanges - Maximum Pressure and Temperature Ratings - Group 1.2 - Non-shock pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings
ASME - American Society of Mechanical Engineers - ASME is one of the leading organizations in the world developing codes and standards
ASME B31 - Pressure Piping - A survey of one of the most important pressure pipe codes - ASME B31, earlier known as ANSI B31
ASME B31.9 - Working Pressure and Temperature Limits - The working pressure and temperature limits of ASME Code B31.9 - Building Services Piping
ASME/ANSI B16 Standards for Pipes and Fittings - The ASME B16 standards covers pipes and fittings in cast iron , cast bronze, wrought copper and steel
ASME/ANSI B16.5 - Flanges and Bolt Dimensions Class 150 to 2500 - Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500
Bronze Flanges - ASME/ANSI 150 lb - Flange diameters, thickness, bolt circles, numbers and diameters of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 150 lb Bronze flanges with plain faces
Bronze Flanges - ASME/ANSI 300 lb - Flange diameters, thickness, bolt circles, numbers and diameter of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 300 lb Bronze Flanges with plain faces
Carbon and Stainless Steel Flanges - ASME/ANSI Class 150 - ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts
Carbon Steel Flanges - Pressure and Temperature Ratings - Group 1.1 - Maximum temperature and pressure ratings of flanges conforming dimensions ASME B16.5 and materials specification ASTM A-105
Cast Iron Flanges - ASME/ANSI Class 125 - ASME/ANSI B16.1 Cast Iron Pipe Flanges and Flanged Fittings - Class 125 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts
Flanges - API vs. ASME/ANSI - API and ASME/ANSI flanges - comparing dimensions and pressure ratings
Flanges - Hydrostatic Test Pressure - Flanged fittings and required hydrostatic test pressure
Pressure and Temperature Ratings ASTM A-53, A-106 and API 5L Grade B Carbon Steel Pipes - Metric Units - Pressure (kPa) and temperature (^oC) ratings of ASTM A-106, API 5L and ASTM A-53 Seamless Carbon Steel Pipes - temperatures ranging -29 ^oC - 450 ^oC
Pressure and Temperature Ratings of A-53 B, A-106 B, A333, A334 and API 5L Carbon Steel Pipes - Imperial Units - 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 ^oF - 700 ^oF
Steel Pipes - Temperature Derating - Temperature derating factor for steel pipes
Steel Tubes - Working Pressures - Normal maximum working pressures for steel tubes - in psi (lb/in²) and kPa (kN/m²)
Waterhammer - Rapidly closing or opening valves - or starting stopping pumps - may cause pressure transients in pipelines known as waterhammers

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