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ASME B16.34 Pressure/Temperature Rating

The ASME B16.34 specification covers pressure and temperature ratings for forgings, castings, plate, bar, and tubular products. The ASME B16.34 charts show the max allowed pressure for a material depending on the product rating and the process temperature (the higher the temperature, the lower the pressure at a given rating).

ASME B1634 pressure temperature rating
ASME B1634 pressure temperature rating

 

Table of Content

 GROUP 1: CARBON AND ALLOY STEEL GRADES

Material
Group No.
Material Nominal DesignationForgingCastingPlateBarTubular
1.1C
C-SI
C-MN-SIC-MN-SI-V
A105
A350 Gr. LF2A350 Gr. LF6 Cl.1
A216 Gr. WCBA515 Gr. 70
A516 Gr. 70
A537 Gr. Cl.1
A675 Gr. 70
A105
A350 Gr. LF2
A696 Gr. C
A672 Gr. B70
A672 Gr. C70
1.2C-SI
2 1/2NI
3 1/2NI
C-MN-SIC-MN-SI-V
A350 Gr. LF3
A350 Gr. LF6 Cl.2
A352 Gr. LC2
A352 Gr. LC3
A216 Gr. WCC
A352 Gr. LCC
A203 Gr. B
A203 Gr. E
A350 Gr. LF3A106 Gr. C
1.3C
C-SI
2 1/2NI
3 1/2NI
C-MN-SI
A352 Gr. LCBA515 Gr. 65
A203 Gr. A
A203 Gr. D
A516 Gr. 65
A675 Gr. 65A672 Gr. B65
A672 Gr. C65
1.4C
C-SIC-MN-SI
A350 Gr. LF1A515 Gr. 60A516 Gr. 60A675 Gr. 60
A350 Gr. LF1
A696 Gr. B
A106 Gr. B
A672 Gr. B60
A672 Gr. C60
1.5C-1/2MOA182 Gr. F1A217 Gr. WC1
A352 Gr. LC1
A204 Gr. A
A204 Gr. B
A182 Gr. F1A691 Gr. CM-70
1.6C-1/2MO1/2CR-1/2MO
1CR-1/2MO
A387 Gr. 2 Cl.1
A387 Gr. 2 Cl.2
A387 Gr. 12 Cl.1
A335 Gr. P1
A369 Gr. FP1
A691 Gr. 1/2CR
1.7C-1/2MO
1/2CR-1/2MO
NI-1/2CR-1/2MO
3/4NI-MO-3/4CR
A182 Gr. F2A217 Gr. WC4
A217 Gr. WC5
A204 Gr. CA182 Gr. F2A691 Gr. MC-75
1.81CR-1/2MO
1 1/4CR-1/2MO-SI2 1/4CR-1MO
A387 Gr. 12 Cl.2
A387 Gr. 11 Cl.1A387 Gr. 22 Cl.1
A691 Gr. 1CR
A335 Gr. P12
A369 Gr. FP12
A691 Gr. 1 1/4CR
A335 Gr. P11
A369 Gr. FP11
A691 Gr. 2 1/4CR
A335 Gr. P22
A369 Gr. FP22
1.91CR-1/2MO
1 1/4CR-1/2MO-SI
1 1/4CR-1/2MO
A182 Gr. F12 Cl.2
A182 Gr. F11 Cl.2
A217 Gr. WC6A387 Gr. 11 Cl.2A182 Gr. F12 Cl.2
A182 Gr. F11 Cl.2
A739 Gr. B11
1.102 1/4CR-1MOA182 Gr. F22 Cl.3A217 Gr. WC9A387 Gr. 22 Cl.2A182 Gr. F22 Cl.3
A739 Gr. B22
1.113CR-1MO
MN-1/2MO
MN-s1/2MO-1/2NI
MN-1/2MO-3/4NI
C-MN-SI
A182 Gr. F21A387 Gr. 21 Cl.2
A302 Gr. A & B
A302 Gr. C
A302 Gr. D
A537 Gr. CL2
A182 Gr. F21
1.125CR-1/2MO
5CR-1/2MO-SI
A387 Gr. 5 Cl.1
A387 Gr. 5 Cl.2
A691 Gr. 5CR
A335 Gr. P5
A369 Gr. FP5
A335 Gr. P5b
1.135CR-1/2MOA182 Gr. F5a
A182 Gr. F5
A217 Gr. C5A182 Gr. F5a
A182 Gr. F5
1.149CR-1MOA182 Gr. F9A217 Gr. C12A182 Gr. F9
1.159CR-1MO-VA182 Gr. F51A217 Gr. C12AA387 Gr. 91 Cl.2A182 Gr. F91A335 Gr. P91

GROUP 1.1 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.1C
C-SI
C-MN-SIC-MN-SI-V
A105 [1] [6]
A350 Gr. LF2 [1]
A350 Gr. LF6 Cl.1 [7]
A216 Gr. WCB [1]A515 Gr. 70 [1]
A516 Gr. 70 [1] [2]
A537 Gr. Cl.1 [3]
A675 Gr. 70 [1] [4] [5]
A105 [1] [6]
A350 Gr. LF2 [1]
A696 Gr. C
A672 Gr. B70 [1]
A672 Gr. C70 [1]

[1] Upon prolonged exposure to temperatures above 800°F, the carbide phase of the steel may be converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
[2] Not to be used over 850°F.
[3] Not to be used over 700°F.
[4] Leaded grades shall not be used where welded of in any application above 500°F.
[5] For service temperatures above 850°F, it is recommended that killed steels containing not less than 0.10% residual silicon be used.
[6] Only killed steel shall be used above 850°F.
[7] Not to be used over 500°F.

Maximum gage pressure (in psi) by temperature for Group 1.1 ASME B16.34 materials

Temp. °F150#300#400#600#900#1500#2500#
-20 to 1002857009001480222037056170
2002606759001350202533755625
3002306558751315197032805470
4002006358451270190031705280
5001706008001200179529954990
6001405507301095164037354560
6501255357151075161026854475
7001105357101005160026654440
750955056701010151025204200
80080410550825123520603430
8506527035553580513402230
900501702303455158601430
95035105140205310515860
1000205070105155260430

GROUP 1.2 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.2C-SI
2 1/2 NI
3 1/2 NI
C-MN-SIC-MN-SI-V
A350 Gr. LF3 [2]
A350 Gr. LF6 Cl.2 [4]
A352 Gr. LC2 [2]
A352 Gr. LC3 [2]
A216 Gr. WCC [1]
A352 Gr. LCC [2]
A203 Gr. B [1]
A203 Gr. E [1]
A350 Gr. LF3 [2]A106 Gr. C [3]

[1] Upon prolonged exposure to temperatures above 800°F, the carbide phase of the steel may be converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
[2] Not to be used over 650°F.
[3] Not to be used over 800°F.
[4] Not to be used over 500°F.

Maximum gage pressure (in psi) by temperature for Group 1.2 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 10029075010001500225037506250
20026075010001500225037506250
3002307309701455218536406070
4002007059401410211535305880
5001706658851330199533255540
6001406058051210181530255040
6501255907851175176529404905
7001105707551135170528404730
750955056701010151025204200
80080410550825123520603430
8506527035553580513402230
900501702303455158601430
95035105140205310515860
1000205070105155260430

GROUP 1.3 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.3C
C-SI
2 1/2 NI
3 1/2 NI
C-MN-SI
A352 Gr. LCB [5]A515 Gr. 65 [1]
A203 Gr. A [1]
A203 Gr. D [1]
A516 Gr. 65 [1] [2]
A675 Gr. 65 [1] [3] [4]A672 Gr. B65 [1]
A672 Gr. C65 [1]

[1] Upon prolonged exposure to temperatures above 800°F, the carbide phase of the steel may be converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
[2] Not to be used over 850°F.
[3] Leaded grades shall not be used where welded in any application above 500°F.
[4] For service temperatures above 850°F, it is recommended that killed steel containing not less than 0.10% residual silicon be used.
[5] Not to be used over 650°F.

Maximum gage pressure (in psi) by temperature for Group 1.3 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002656959251390208534705785
2002506558751315197032805470
3002306408501275191531905315
4002006208251235185030855145
5001705857751165174529104850
6001405357101065160026654440
6501255256951045157026154355
7001105206901035155525904320
75095475630945142023653945
80080390520780117519553260
8506527035553580513402230
900501702303455158601430
95035105140205310515860
1000205070105155260430

GROUP 1.4 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.4C
C-SIC-MN-SI
A350 Gr. LF1 [1]A515 Gr. 60 [1] [2]A516 Gr. 60 [1] [2]A675 Gr. 60 [1] [2] [3]
A350 Gr. LF1 [1]
A696 Gr. B
A106 Gr. B [1]
A672 Gr. B60 [1]
A672 Gr. C60 [1]

[1] Upon prolonged exposure to temperatures above 800°F, the carbide phase of the steel may be converted to graphite. Permissible, but not recommended for prolonged use above 800°F.
[2] Not to be used over 850°F.
[3] Leaded grades shall not be used where welded in any application above 500°F.

Maximum gage pressure (in psi) by temperature for Group 1.4 ASME B16.34 materials:

Temp. °F15030040060090015002500
-20 to 1002356208251235185030851545
2002155607501125168528104680
3002105507301095164027354560
4002005307051060158526454405
500170500665995149524904150
600140455610915137022853805
650125450600895134522453740
700110450600895134522453740
75095445590885132522103685
80080370495740111018503085
8506527035553580513402230
900501702303455158601430
95035105140205310515860
1000205070105155260430

GROUP 1.5 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.5C-1/2MOA182 Gr. F1 [1]A217 Gr. WC1 [1] [2]
A352 Gr. LC1 [3]
A204 Gr. A [1]
A204 Gr. B
A182 Gr. F1 [1]A691 Gr. CM-70 [1]

[1] Upon prolonged exposure to temperatures above 875°F, the carbide phase of carbon-molybdenum steel may be converted to graphite. Permissible, but not recommended for prolonged use above 875°F.
[2] Use normalized and tempered material only.
[3] Not to be used over 650°F.

Maximum gage pressure (in psi) by temperature for Group 1.5 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002656959251390208534705785
2002606809051360203533955660
3002306558701305195532605435
4002006408551280192032005330
5001706208301245186531055180
6001406058051210181530255040
6501255907851175176529404905
7001105707551135170528404730
750955307101065159526604430
800805106751015152525404230
85065485650975146024354060
90050450600900135022453745
9503528037556084514052345
1000201652203304958251370

GROUP 1.6 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
1.6C-1/2MO1/2CR-1/2MO
1CR-1/2MO
A387 Gr. 2 Cl.1 [3]
A387 Gr. 2 Cl.2 [3]
A387 Gr. 12 Cl.1 [2]
A335 Gr. P1 [1] [3]
A369 Gr. FP1 [1] [3]
A691 Gr. 1/2CR [3]

[1] Upon prolonged exposure to temperatures above 875°F, the carbide phase of carbon-molybdenum steel may be converted to graphite. Permissible, but not recommended for prolonged use above 875°F.
[2] Permissible, but not recommended for prolonged use above 1100°F.
[3] Not to be used over 1000°F.

Maximum gage pressure (in psi) by temperature for Group 1.6 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002255907901185177529554930
2002255907901185177529554930
3002255907901185177529554930
4002005707651145177528604765
5001705507351105165527554595
6001405357101065160026654440
6501255256951045157026154355
7001105106851025153525604270
75095475630945142023653945
80080475630945142023653945
85065460615920138022953830
90050440590885132522103685
9503531542063094515752630
10002020027040560510101685
105020 [1]1552053104657701285
110020 [1]95130190290480800
115020 [1]6080125185310515
120015 [1]405075115190315

GROUP 2: STAINLESS STEEL GRADES

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
2.118CR-8NIA182 Gr. F304
A182 Gr. F304H
A351 Gr. CF3
A351 Gr. CF8
A240 Gr. 304
A240 Gr. 340H
A182 Gr. F304
A182 Gr. F304H
A479 Gr. 304
A479 Gr. 304H
A312 Gr. TP304
A312 Gr. TP304H
A358 Gr. 304
A376 Gr. TP304
A376 Gr. TP304H
A430 Gr. FP304
A430 Gr. FP304H
2.216CR-12NI-2MO
18CR-8NI18CR-13NI-3MO
16CR-12NI-2MO
19CR-10NI-3MO
A182 Gr. F316
A182 Gr. F316H
A351 Gr. CF3A
A351 Gr. CF8AA351 Gr. CF3M
A351 Gr. CF8M
A351 Gr. CG8M
A240 Gr. 316
A240 Gr. 316HA240 Gr. 317
A182 Gr. F316
A182 Gr. F316H
A479 Gr. 316
A479 Gr. 316H
A312 Gr. TP316
A312 Gr. TP316H
A358 Gr. 316
A376 Gr. TP316
A376 Gr. TP316H
A430 Gr. FP316
A430 Gr. FP316HA312 Gr. TP317
2.318CR-8NI
16CR-12NI-2MO
A182 Gr. F304LA182 Gr. F316LA240 Gr. 304LA240 Gr. 316LA182 Gr. F304L
A479 Gr. 304L
A182 Gr. F316L
A479 Gr. 316L
A312 Gr. TP304L
A312 Gr. TP316L
2.418CR-10NI-TIA182 Gr. F321
A182 Gr. F321H
A240 Gr. 321
A240 Gr. 321H
A182 Gr. F321
A479 Gr. 321
A182 Gr. F321H
A479 Gr. 321H
A312 Gr. TP321
A312 Gr. TP321H
A358 Gr. 321
A376 Gr. TP321
A376 Gr. TP321H
A430 Gr. FP321
A430 Gr. FP321H
2.518CR-10NI-CBA182 Gr. F347
A182 Gr. F347H
A182 Gr. F348
A182 Gr. F348H
A351 Gr. CF8CA240 Gr. 347
A240 Gr. 347H
A240 Gr. 348
A240 Gr. 348H
A182 Gr. F347
A182 Gr. F347H
A182 Gr. F348
A182 Gr. F348H
A479 Gr. 347A479 Gr. 347H
A479 Gr. 348
A479 Gr. 348H
A312 Gr. TP347
A312 Gr. TP347H
A358 Gr. TP347
A376 Gr. TP347
A376 Gr. TP347H
A376 Gr. TP348
A430 Gr. FP347
A430 Gr. FP347H
A312 Gr. TP348
A312 Gr. TP348H
2.625CR-12NI
23CR-12NI
A351 Gr. CH8
A351 Gr. CH20
A240 Gr. 309S
A240 Gr. 309H
A312 Gr. TP309H
A358 Gr. 309H
2.725CR-20NIA182 Gr. F310HA351 Gr. CK20A240 Gr. 310S
A240 Gr. 310H
A182 Gr. F310H
A479 Gr. 310H
A479 Gr. 310S
A312 Gr. TP310HA358 Gr. 310H
2.820CR-18NI-6MO
22CR-5NI-3MO-N
25CR-7NI-4MO-N24CR-10NI-4MO-V
25CR-5NI-2MO-2CU
25CR-7NI-3.5MO-W-CB
25CR-7NI-3.5MO-N-CB-W
A182 Gr. F44A182 Gr. F51
A182 Gr. F53
A182 Gr. F55
A351 Gr. CK3MCuN
A351 Gr. CE8MN
A351 Gr. CD4MCu
A351 Gr. CD3MWCuN
A240 Gr. S31254A240 Gr. S31803
A240 Gr. S32750
A240 Gr. S32760
A479 Gr. S31254
A479 Gr. S31803
A479 Gr. S32750
A312 Gr. S31254
A358 Gr. S31254
A789 Gr. S31803
A790 Gr. S31803
A789 Gr. S32750
A790 Gr. S32750
A789 Gr. S32760
A790 Gr. S32760

GROUP 2.1 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
2.118CR-8NIA182 Gr. F304 [1]
A182 Gr. F304H
A351 Gr. CF3 [2]
A351 Gr. CF8 [1]
A240 Gr. 304 [1]
A240 Gr. 340H
A182 Gr. F304 [1]
A182 Gr. F304H
A479 Gr. 304 [1]
A479 Gr. 304H
A312 Gr. TP304 [1]
A312 Gr. TP304H
A358 Gr. 304 [1]
A376 Gr. TP304 [1]
A376 Gr. TP304H
A430 Gr. FP304 [1]
A430 Gr. FP304H

[1] At temperatures over 1000°F, use only when the carbon content is 0.04% or higher.
[2] Not to be used over 800°F.

Maximum gage pressure (in psi) by temperature for Group 2.1 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002757209601440216036006000
2002306008001200180030005000
3002055407201080162027004500
400190495660995149024854140
500170465620930139523303880
600140435580875131021853640
650125430575860129021503580
700110425565850127521253540
75095415555830124520753460
80080405540805121020153360
85065395530790119019803300
90050390520780116519453240
95035380510765114519103180
10002032043064096516052675
105020 [1]31041061592515452570
110020 [1]25534551577012852145
115020 [1]2002654005959951655
120020 [1]1552053104657701285
125020 [1]115150225340565945
130020 [1]85115170255430715
135020 [1]6080125185310515
140020 [1]506595145240400
145015 [1]354570105170285
150010 [1]25355580135230

[1] Use with buttweld valves only. Flanged end rating stop at 1000°F.

GROUP 2.2 ASME B16.34 PRESSURE AND TEMPERATURE RATINGS

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
2.216CR-12NI-2MO
18CR-8NI18CR-13NI-3MO
16CR-12NI-2MO
19CR-10NI-3MO
A182 Gr. F316 [1]
A182 Gr. F316H
A351 Gr. CF3A [2]
A351 Gr. CF8A [2]A351 Gr. CF3M [3]
A351 Gr. CF8M [1]
A351 Gr. CG8M [4]
A240 Gr. 316 [1]
A240 Gr. 316HA240 Gr. 317 [1]
A182 Gr. F316 [1]
A182 Gr. F316H
A479 Gr. 316 [1]
A479 Gr. 316H
A312 Gr. TP316 [1]
A312 Gr. TP316H
A358 Gr. 316 [1]
A376 Gr. TP316 [1]
A376 Gr. TP316H
A430 Gr. FP316 [1]
A430 Gr. FP316HA312 Gr. TP317 [1]
[1] At temperatures over 1000°F, use only when carbon content is 0.04% or higher.
[2] Not to be used over 650°F.
[3] Not to be used over 850°F.
[4] Not to be used over 1000°F.

Maximum gage pressure (in psi) by temperature for Group 2.2 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002757209601440216036006000
2002356208251240186030955160
3002155607451120168027954660
4001955156851025154025704280
500170480635955143523903980
600140450600900135522553760
650125445590890133022203700
700110430580870130521703620
75095425570855128021353560
80080420565845126521103520
85065420555835125520903480
90050415555830124520753460
95035385515775116019303220
100020350465700105017502915
105020 [1]345460685103017202865
110020 [1]30540561091515252545
115020 [1]23531547571011851970
120020 [1]1852453705559251545
125020 [1]1451952954407351230
130020 [1]115155235350585970
135020 [1]95130190290480800
140020 [1]75100150225380630
145020 [1]6080115175290485
150020 [1]405585125205345

[1] Use with buttweld valves only. Flanged end rating stops at 1000°F.

GROUP 3: NICKEL ALLOY GRADES

MaterialGroup No.Material NominalDesignationForgingCastingPlateBarTubular
3.135NI-35FE-20CR-CBB462 Gr. N08020B463 Gr. N08020B473 Gr. N08020B464 Gr. N08020
B468 Gr. N08020
3.299NIB160 Gr. N02200B162 Gr. N02200B160 Gr. N02200B161 Gr. N02200
B163 Gr. N02200
3.399NI-Low CB160 Gr. N02201B162 Gr. N02201B160 Gr. N02201
3.467NI-30CU67NI-30CU-SB564 Gr. N04400B564 Gr. N04405B127 Gr. N04400B164 Gr. N04400B164 Gr. N04405B165 Gr. N04400
B163 Gr. N04400
3.572NI-15CR-8FEB564 Gr. N06600B168 Gr. N06600B166 Gr. N06600B167 Gr. N06600
B163 Gr. N06600
3.633NI-42FE-21CRB564 Gr. N08800B409 Gr. N08800B408 Gr. N08800B163 Gr. N08800
3.765NI-28MO-2FEB335 Gr. N10665B333 Gr. N10665B335 Gr. N10665B662 Gr. N10665
3.854NI-16MO-15CR
60NI-22CR-9MO-3.5CB
62NI-28MO-5FE
70NI-16MO-7CR-5FE
61NI-16MO-16CR
42NI-21.5CR-3MO-2.3CU
B564 Gr. N10276
B564 Gr. N06625
B335 Gr. N10001
B573 Gr. N10003
B574 Gr. N06455
B425 Gr. N08825
B575 Gr. N10276
B443 Gr. N06625
B333 Gr. N10001
B434 Gr. N10003
B575 Gr. N06455
B424 Gr. N08825
B574 Gr. N10276
B446 Gr. N06625
B335 Gr. N10001
B573 Gr. N10003
B574 Gr. N06455
B425 Gr. N08825
B622 Gr. N10276B622 Gr. N10001B622 Gr. N06455
B423 Gr. N08825
3.947NI-22CR-9MO-18FEB572 Gr. N06002B435 Gr. N06002B572 Gr. N06002B622 Gr. N06002
3.1025NI-47FE-21CR-5MOB672 Gr. N08700B599 Gr. N08700B672 Gr. N08700
3.1144FE-25NI-21CR-MOB649 Gr. N08904B625 Gr. N08904B649 Gr. N08904B677 Gr. N08904
3.1226NI-43FE-22CR-5MO
47NI-22CR-20FE-7MO
B621 Gr. N08320
B581 Gr. N06985
B620 Gr. N08320
B582 Gr. N06985
B621 Gr. N08320
B581 Gr. N06985
B622 Gr. N08320
B622 Gr. N06985
3.1349NI-25CR-18FE-6MO
NI-FE-CR-MO-CU-Low C
B581 Gr. N06975
B564 Gr. N08031
B582 Gr. N06975
B625 Gr. N08031
B581 Gr. N06975
B649 Gr. N08031
B622 Gr. N06975
B622 Gr. N08031
3.1447NI-22CR-19FE-6MOB581 Gr. N06007B582 Gr. N06007B581 Gr. N06007B622 Gr. N06007
3.1533NI-2FE-21CR
NI-MO
NI-MO-CR
B564 Gr. N08810B494 Gr. N-12MW
B494 Gr. CW-12MW
B409 Gr. N08810B408 Gr. N08810B407 Gr. N08810
3.1635NI-19CR-1 1/4SIB511 Gr. N08330B536 Gr. N08330B511 Gr. N08330B535 Gr. N08330
3.1729NI-20.5CR-3.5CU-2.5MOA351 Gr. CN-7M

 Maximum gage pressure (in psi) by temperature for Group 3.1 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 10029075010001500225037506250
2002607209601440216036006000
3002307159501425214035655940
4002006759001345202033655610
5001706558751310196532755460
6001406058051210181530255040
6501255907851175176529404905
7001105707551135170528404730
750955307101065159526604430
800805106751015152525404230

Maximum gage pressure (in psi) by temperature for Group 3.2 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 100140360480720108018003000
200140360480720108018003000
300140360480720108018003000
400140360480720108018003000
500140360480720108018003000
600140360480720108018003000

Maximum gage pressure (in psi) by temperature for Group 3.3 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1009024032048072012002000
2008523030545568511401900
3008522530044567011151860
4008521529043065010801800
5008521529043065010801800
6008521529043065010801800
6508521529043065010801800
7008521529043065010801800
7508021028042063510551760
8008020527041061010201700
8506520527041061010201700
900501401852804156951155
95035115150230345570950
10002095125185280465770
105020 [1]75100150220370615
110020 [1]6080125185310515
115020 [1]456095140230385
120015 [1]355075110185310

[1] Use with buttweld valves only. Flanged end rating stop at 1000°F.

Maximum gage pressure (in psi) by temperature for Group 3.4 ASME B16.34 materials

Temp. °F15030040060090015002500
2002005307051055158526404400
300190495660990148524704120
400185480635955143523903980
500170475635950143523753960
600140475635950143523753960
650125475635950143523753960
700110475635950143523753960
75095470625935140523403900
80080460610915137522903820
85065340455680102016952830
9005024533049574012352055

Maximum gage pressure (in psi) by temperature for Group 3.5 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 10029075010001500225037506250
20026075010001500225037506250
3002307309701455218536406070
4002007059401410211535305880
5001706658851330199533255540
6001406058051210181530255040
6501255907851175176529404905
7001105707551135170528404730
750955307101065159526604430
800805106751015152525404230
85065485650975146024354060
90050450600900135022453745
9503532543565598016352725
10002021529043065010801800
105020 [1]1401852804156951155
110020 [1]95125185280465770
115020 [1]7090135205340565
120020 [1]6080125185310515

[1] Use with buttweld valves only. Flanged end rating stop at 1000°F.

 Maximum gage pressure (in psi) by temperature for Group 3.10 ASME B16.34 materials

Temp. °F15030040060090015002500
-20 to 1002757209601440216036006000
2002607209601440216036006000
3002306809051360204034005670
4002006408551280192032055340
5001706108151225183530605100
6001405957901190178029704950
6501255707601140170528454740

We recommend purchasing the ASME B16.34 specification from the ASME website or from the IHS store to get a complete understanding of this topic.

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