ASME B16.34 - Group 3.1, Pres-Temp Rating

Written by Jerry Ratzlaff. Posted in American Society of Mechanical Engineers

American Society of Mechanical Engineers (ASME)

standards

  • ASME B16.34 - Valves Flanged, Threaded and Welding End

ASME B16.34 - Materials in Group 3.1 - Nickel and Nickel Alloy

  • [1] Use annealed material only.
Material

Group No.

Material Nominal

Designation

ForgingCastingPlateBarTubular
3.1 35NI-35FE-20CR-CB B462 Gr. N08020 [1] - B463 Gr. N08020 [1] B473 Gr. N08020 [1] B464 Gr. N08020 [1]
B468 Gr. N08020 [1]

ASME B16.34 - Material Group 3.1 - Standard Class, Pressure-Temperature Rating

  • Ratings are maximum allowable working gage pressure (psig) at the temperature listed.
Temp. °F15030040060090015002500
-20 to 100 290 750 1000 1500 2250 3750 6250
200 260 720 960 1440 2160 3600 6000
300 230 715 950 1425 2140 3565 5940
400 200 675 900 1345 2020 3365 5610
500 170 655 875 1310 1965 3275 5460
600 140 605 805 1210 1815 3025 5040
650 125 590 785 1175 1765 2940 4905
700 110 570 755 1135 1705 2840 4730
750 95 530 710 1065 1595 2660 4430
800 80 510 675 1015 1525 2540 4230