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

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

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

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

Related Topics

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

Related Documents

Search the Engineering ToolBox

- "the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

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

Translate the Engineering ToolBox!
About the Engineering ToolBox!