Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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

Pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings

Sponsored Links

Pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings according the American National Standard ANSI B16.5 - 1988 Group 1.2:

For full table - rotate the screen!

Working Pressure (bar)
Temperature (°C)	Class
Temperature (°C)	150	300	400	600	900	1500	2500
-29 - 38	19.8	51.7	68.9	103.4	155	259	431
50	19.5	51.7	68.9	103.4	155	259	431
100	17.7	51.5	68.7	103.0	155	258	429
150	15.8	50.2	66.8	100.3	151	251	418
200	13.8	48.6	64.8	97.2	146	243	405
250	12.1	46.3	61.7	92.7	139	232	386
300	10.2	42.9	57.0	85.7	129	214	357
325	9.3	41.4	55.0	82.6	124	207	344
350	8.4	40.0	53.4	80.0	120	200	334
375	7.4	37.8	50.4	75.7	114	189	315
400	6.5	34.7	46.3	69.4	104	174	290
425	5.5	28.8	38.4	57.5	86.3	144	240
450	4.6	23.0	30.7	46.0	69.0	115	192
475	3.7	17.1	22.8	34.2	51.3	85.4	142
500	2.8	11.6	15.4	23.2	34.7	57.9	96.5
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2

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.

Steel Flanges - working pressure vs. class and temperature

Sponsored Links

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 - Pressure and Temperature Ratings - Group 1.2. - 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 - Overview - A survey of one of the most important pressure pipe codes - ASME B31, earlier known as ANSI B31.
ASME B31.9 Building Services Piping - 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.
ASTM Flanges - Hydrostatic Test Pressures - Flanged fittings and required hydrostatic test pressure.
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 - Group 1.1 Pressure and Temperature Ratings - Maximum temperature and pressure ratings of flanges conforming dimensions ASME B16.5 and materials specification ASTM A-105.
Carbon Steel Pipes - Pressure and Temperature Ratings, 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.
Carbon Steel Pipes - Pressure and Temperature Ratings, 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.
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 - 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.
Steel Pipes - Derating Factor vs. Temperature - Temperature derating factor for steel pipes.
Steel Tubes - Working Pressures vs. Size - Normal maximum working pressures for steel tubes - in psi (lb/in²) and kPa (kN/m²).
Water Hammer - Rapidly closing or opening valves - or starting stopping pumps - may cause pressure transients in pipelines known as surge or water hammers.

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate

About the Engineering ToolBox!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

Citation

This page can be cited as

Engineering ToolBox, (2003). ANSI B16.5 - Steel Pipe Flanges - Pressure and Temperature Ratings - Group 1.2.. [online] Available at: https://www.engineeringtoolbox.com/ansi-flanges-pressure-temperature-d_342.html [Accessed Day Mo. Year].

Modify access date.

close

3D Engineering ToolBox - draw and model technical applications!

2D Engineering ToolBox - create and share online diagram drawing templates!

Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

12 8

Sponsored Links