Group 2.2: Austenitic SS 16Cr-12Ni-2Mo

ASME B16.5-2020 Pressure-Temperature Ratings

Pressure Ratings > Flange > Group 2.2 — Austenitic SS 16Cr-12Ni-2Mo

Units

Group 2.2: Austenitic SS 16Cr-12Ni-2Mo

Materials: A182 F316/F316H/F317, A351 CF3M/CF8M/CG8M, A240-316/317

Pressure-Temperature Curve

Class 150
Class 1500
Class 2500
Class 300
Class 400
Class 600
Class 900

Interpolation Calculator

Calculate allowable working pressure at any intermediate temperature by linear interpolation.

Class

Temperature

Group 2.2 Pressure-Temperature Ratings (psig)

Temp (°F)	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
−20	275	720	960	1,440	2,160	3,600	6,000
100	275	720	960	1,440	2,160	3,600	6,000
200	235	620	825	1,240	1,860	3,095	5,160
300	215	560	745	1,120	1,680	2,795	4,660
400	195	515	685	1,025	1,540	2,570	4,280
500	170	480	635	955	1,435	2,390	3,980
600	140	450	600	900	1,355	2,255	3,760
650	125	440	590	885	1,325	2,210	3,680
700	110	435	580	870	1,305	2,170	3,620
750	95	425	570	855	1,280	2,135	3,560
800	80	420	565	845	1,265	2,110	3,520
850	65	420	555	835	1,255	2,090	3,480
900	50	415	555	830	1,245	2,075	3,460
950	35	385	515	775	1,160	1,930	3,220
1000	20	365	485	725	1,090	1,820	3,030
1050	—	360	480	720	1,080	1,800	3,000
1100	—	305	405	610	915	1,525	2,545
1150	—	235	315	475	710	1,185	1,970
1200	—	185	245	370	555	925	1,545
1250	—	145	195	295	440	735	1,230
1300	—	115	155	235	350	585	970
1350	—	95	130	190	290	480	800
1400	—	75	100	150	225	380	630
1450	—	60	80	115	175	290	485
1500	—	40	55	85	125	205	345

Matching Pipe Materials — MAWP Calculators

A312 TP316

ASTM A312 TP316 SS Pipe Smls 16Cr-12Ni-2Mo

Disclaimer: This chart is for guidance only. The data is from ASME B16.5-2020 and shall not be used for design without verification against the current edition of the standard. Ambient ratings apply from −20 °F (−29 °C) to 100 °F (38 °C). Rows highlighted in blue indicate the ambient temperature range.

← Group 2.1 Group 2.3 →

References

ASME B16.5-2020 — Pipe Flanges and Flanged Fittings: NPS ½ Through NPS 24 Metric/Inch Standard
Pressure ratings are maximum allowable non-shock working pressures (psig or bar gauge)
Intermediate temperatures may be interpolated linearly between tabulated values
Ratings apply to flanged fittings of the designated class, including flanges, flanged valves, and flanged end fittings
For temperatures below −20 °F (−29 °C), consult ASME B16.5 for specific material limitations