ASME B16.34 - Group 3.4, Pres-Temp Rating

Written by Jerry Ratzlaff on . 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 3.4 - Nickel and Nickel Alloy

  • [1] Use annealed material only.
  • [2] For forgings, the chemical composition, mechanical properties, heat treating requirements, and grain size requirements shall conform to the applicable ASTM specification. The manufacturing procedures, tolerances, tests, certification, and markings shall be in accordance with ASTM B564.
Material

Group No.

Material Nominal

Designation

ForgingCastingPlateBarTubular
3.4 67NI-30CU

67NI-30CU-S

B564 Gr. N04400 [1]

B564 Gr. N04405

- B127 Gr. N04400 [1]

 

B164 Gr. N04400 [1]

B164 Gr. N04405 [1] [2]

B165 Gr. N04400 [1]
B163 Gr. N04400 [1]

ASME B16.34 - Material Group 3.4 - Standard Class, Pressure-Temperature Rating 

  • Ratings are maximum allowable working gage pressure (psig) at the temperature listed.
Temp. °F15030040060090015002500
200 200 530 705 1055 1585 2640 4400
300 190 495 660 990 1485 2470 4120
400 185 480 635 955 1435 2390 3980
500 170 475 635 950 1435 2375 3960
600 140 475 635 950 1435 2375 3960
650 125 475 635 950 1435 2375 3960
700 110 475 635 950 1435 2375 3960
750 95 470 625 935 1405 2340 3900
800 80 460 610 915 1375 2290 3820
850 65 340 455 680 1020 1695 2830
900 50 245 330 495 740 1235 2055