ML20196A002
| ML20196A002 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 11/30/1988 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20195K155 | List: |
| References | |
| IEB-88-005, IEB-88-5, NUDOCS 8812050224 | |
| Download: ML20196A002 (44) | |
Text
O ENCLOSURE 2 i
I O
t GEORGIA POWER COMPANY DESIGN EVALUATION OF WJM/ PSI O
FTITINGS AND FLWGES WITH l
i ESTIMATED STRENGTH BELQW 66 KSI o
FOR PIANT VOGTIR UNIT 2 l
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l November,1988
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l VOOTLE UNIT 2 DESIGN EVALUAT10N OF WJM/ PSI ITI'ITNOS AND FIANGES O
WIT 11 EF11 MATED STRENGTil BELOW 66 KS!
(NRC Bulletin 88@S i
Executive Summary During mid 1988, the NRC issued Bulletin 88-05 and Supplements 1 and 2 regarding suspect O
WJhUPSI material. Georgio Power investigated the WJht/ PSI material installed in safety related systems at Vogtle Unit 2 to determine whether or not Code requirements had been met. After
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O the investigation was completed, a presentation of the findings was made to the NRC on Nostmber 4,1988. De imtstigation results are presented in,' Georgia Power Company Response to NRC i
Bulletin 88-05 for Plant Vogtle Unit 2,* dated November 1988. He above report confirms that the material at Vogt!c Unit 2 meets Code requirements.
l O-i On November 10,1988, the NRC requested that Georgia Power perform a design evaluation of all safety.related fittings and fianges installed at Vogtle Unit 2 furnished by WJht/ PSI with estimated values of tenslic strength less than 66 ksi based on an equivalent Equotip hardness.
O De NRC required that the Equotip hardness value for 66 ksi be established using a one standard deviation (lo = 19 6) below the 'best fit' Equotip to. tensile strength correlation line destloped j
in the NUhtARC Program (Figure 6, NUhtARC Final Report, October,1988). The Equotip to-0 tensile strength correlation is shown in Figure 1 of this report. Also shown is the one sigma (la) j lower bound to the NUhtARC 'best fit' line, establishing that 381 f.o is equivalent to 66 ksi t
tensile strength, ne number of items not meeting the 381 to criteria was found to be 61.
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O Georgis Power has demonstrated to the Authorized Inspection Agency for Vogtle Unit 2 that th.
f AshlE WJht/PS! material meets the AShtE Code requirements. All the safety related piping systems were designed to the Section III requirements. Derefore, because the matetial meets j
Code requirements, the design requirements of the Code have also been met. This design i
O evaluation is outside the scope of the Code activities associated wt.h the Vogtle Unit 2 piping i
systems. He evaluation demonstrates the extra conservatism built into the Vogtle Unit 2 plant.
O nis report outlines the methodology used for the Vogt!c Unit 2 design evaluscion and a summary i
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of the detailed results of the analyses. De Georgia Power evaluation shows that the installed, safety related WJht/ PSI fittings and Danges are acceptable with regard to stress and pressure rating.
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ne Vogtle Unit 2 evaluation uses the acceptance criteria and evaluation methods outlined in the NUhtARC report submitted to the NRC on July 22,1988, and the criteria suggested by the NRC on Novemoer 10,1988, in addition to meeting Code requirements regarding design and construction
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of the piping systems.
Anahvis Methods
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To establish that there was no stress problem with WJht&SI materials installed in safety related systems at Vogtle Unit 2, Georgia Power evaluated carbon steel fittings and Danges with estimated tensile strength below QS ksi, as recommended by the NRC. The design evaluation methodology used at Vogtle Unit 2 was based on the NUhtARC ' Report on Generic Analpis and Evaluntion
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of Suspect ht terial Identified in NRC Bulletin SS-05', dated July 21,19S8 and submitted to the NRC on July 22,1988 which is attached for convenience (Attachment 1).
De WJhi/ PSI Danges and fittings were evaluated to both a pressure retaining acceptance criteria
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and a bending moment acceptance criteria as developed in the NUhtARC Generic Stress Analysis Report. Both pressure and bending moment capacity must be evaluated to satisfy the design rules in the NUhtARC report, which are based on the design rules for AShtE Section 111 Class 2 and
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3 piping. There are no WJht/ PSI Class 1 carbon steel Ottings or Ganges installed in Vogtle Unit
' therefore no design evaluation for Class 1 piping was performed. His evaluation is outside the l
I scope of ASME Code requirements because the Code requirements have been met.
His evaluation was performed to provide additional assurance that the ASME Section lit design
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requirements are satisfied even with the conservative assumption that the material tensile strength is less than 70 ksi.
NUM ARC Criteria for Fitt!ncs
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De NUMARC Generic Stress Analpis Report recommended that fittings, which consist of socket welding or threaded couplings, be pressure rated using C de formulas for seleet d maximum design pressures of 2600 psi,1350 psi and 900 psi. De required temile strength, S for these fittings to
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match the load capacity of the piping was then calculated using the straight line piping thickness 2-3
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formula of Equation 3 from NC 3641 of ASME Section Ill.
(Eq.3) S/4 = P[D. 2y(t..A)y2(t..A)
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where:
P
= rating design pressure (2600,1350,900 psi) y
= 0.4 for D/t, 2 6 y
= d/(d+D.) for D/t, < 6 A
= corrosion allowance (0.0,0.08,0.125 in.)
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D.
= outside diameter of fitting t,
= wall thickness 4
= inside diameter of 11tting ne design evaluation in the NUMARC Report provided for three different corrosion allowances,
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included in Equation 3 as factor A.
The method used for evaluating the bending moment in fittings was dependent on physical and geometric properties of the littings and piping. These properties included section moduli, stress intensification factors, and a tensile strength ratio, ne piping material was assumed to have a minimum tensile strength of 60 ksi (A106B pipe). Using Table A2 of the NUMARC Report, a f
' Ratio to Code Allowables" was determined. The acceptance criteria was that the Ratio to Code Allowables must be 1.0 or less. An important term in the evalua. ion associated with this ratio is the factor (60 ksieSv) where 60 ksi is the minimum strength of the piping and Su is the estimated strength of the fitting based on the tensile strength correlation showtiin Figure 1 for the 1 a line.
A ratio of 1 or less indicates that stress in the piping is higher than in the coupling and,
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therefore, the piping stress controls design and the fitting is acceptable. Fittings with calculated l
ratios greater than 1.0 would not meet the criteria and require further evaluation in accordance i
with the NUMARC report.
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NUMARC Criteria for Blind Ibnges For evaluation of pressure design of blind flanges, the NUMARC criteria is based on the same pressure temperature rating method as applied to Ganges. (See NUMARC Criterir. for Flanges.)
A moment verification on blind flanges is not required because blind flanges are not subject to
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moment loads.
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J NUhfARC Criteria for Flangn ne NUhtARC criteria for Ganges was based on the pressure. temperature rating tables in ANSI 3
D16.5, "Steel Pipe Flanges and Flanged Fittings.' ne NUbiARC Report required that the new allowable pressure based on the NUhtARC rating tables be greater than the design pressure for the hem to be acceptable. NUhtARC derated the cllowable pressures given in the B16.5 tables by the simple ratio of estimated yictd strength cf the Dange to a yield strength of 36 ksi required D
of SA 105 material and assumed that the estimated yield strength is one half the estimated tensile strength of the material. De NUhiARC report then required that any item meeting this pressure rating criteria be further evaluated for bending moment. His procedure is the method used in 3
the AShtE Code.
I ne NUhtARC moment criteda was baset.i yield strength, Code rules in NC 3600 and on conservative enveloping assumptions of loading. blament capacities were determined based on an 3
estimated stress, the appropriate section moduli of the pipe, the stress intensi0 cation factors between the pipe and Gange, and the maximum allowable moments calculated using Equation (12) of NC 3658.3.
O ne assumptions of dead load stresses, thermal stress range, and torsional moments assured Equation (12) would envelope the dynamic moment limits imposed by Equations (13) and (14) of NC.368 for Service Loadings Levels D and CD ne moment capacity was compared to the O
Equation (12) allowable moment which was determined using a specine yield strength of either 28 ksi or 20 ksi as appropriate.
l De comparisons of allowable moment (Eq.12) to the assumed moment permitted calculation of O
the ' Required 'tield Stress Ratios' in Tables C2 and C4 of the NUh1 ARC Report. Tables C2 l
and C4 are respectively for yield strength of 23 ksi, and 20 ksi, and tabulate the Yield Stress Ratios for standard, commonly used, combinations of pipe and Gange sizes, Dange classes and pipe schedules. The Yield Stress Ratio is the ratio of the yield strength required to satisfy Equation O
(12) of NC.3658.3 to the yield strength of the suspect material. NUhtARC Tables C2 and C4 were developed speciGeally for standard Ganges with assumed yield strengths of 28 ksi (Table C2) l and 20 ksi (Table C4).
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For evaluating moment capacity, when the value of the Yield Stress Ratio is legs than or equal to 1.0, the pipe and Dange combinations are generically acceptable. When the Yield Stress Ratio is
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greater than 1.0, a more detailed evaluation is required, as outlined in t',,.f t. MARC report, ne more detailed evaluation should first account for the increase from the t,imated tensile strength of the Dange to the tensile strength used in the NUh! ARC Tables C2 and C4.
l Alternatively, a more detailed evaluation would compare actual design or operating loads to
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allowables based on the estimated tensile strength of the item. Tables C3 and C5 in the NUhtARC Report are used for this purpose.
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NUbiARC Table C1 establishes allowable pressures at temperature for 70 ksi,56 ksi, and 40 ksi tensile strength material for Ganges conforming to the ANSI B16.5 Standard. When the estimated tensile strength of the Dange is between 40 ksi and 70 ksi an allowable pressure can be determined from the table, ne acceptance criteria requires the allowable pressure to exceed the
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design pressure.
For veri 6 cation of moment capacity of Osnges, NUhtARC recommended determination of an applied moment using an allowable stress, S, based on a percentage of the Code allowable stress, l
S.
I hi
= (S)(Zp)st.414 I,)
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S.
= f (1.25S, + 0.25 S.)
(NC*3611.2(e))
i where:
S, and S, are the Code allowable stresses in the cold (c) and hot (h) condition, respectively, S.
= allowable stress range for expansion stresses,
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f
= a factor varying from 0.5 to 1.0 and depending on the number of full temprature cycles over the life of the sptem, Z,
= section modulus of pipe, in.8, and j
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1, a stress mten>tfication factor for weld joint S in the equation for 51; was selected as UAS for Ganges rated below the 000 lb. class and 1.0S, for danges in the 900 lb. class and above. The equation for N!, accounts for a torsional moment
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component (the 1.414 factor) and the stress intensiGeation factor (I,) at the joint. It includes t
s I
- 5*
{
g 3000 psi for dead weight stresses, ne applied moment, M is compared to the Equation (12) t moment in NC-3658.3 of Section III:
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M $ 3125 (S/36) CA, Sy
= flange yield strength C
= bolt circle diameter M,,
= applied static design moment
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A,
= total cross sectio al bolt area at the root of the thread or section 2
of least diameter under sirer.s, in.
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A calculated Yield Stress Ratio (Table C2 and C4) is based on the ratio of M to M,, for the i
specific yield strength, S,, in the equation for M,,.
(Table C2 uses S, = 28 ksi.) Values of the Yield Stress Ratio of 1.0 or iess are acceptable for the panicular flange for all valuca of S, grester than the specific S,in the NUMARC Tables C2 and C4.
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For Yield Stress Ratios greater than 1.0, the first specific evaluation consisted of adjusting the ratio to account for the estimated yield strength of the item being greater than the value used in the NUMARC Table.
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He following specific evaluation, if regt fred, consisted of using actual moments from the design analysis and comparing them to the ASME Section III moment equations, Equations (12), (13),
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and (14)* in NC 36583. Tables C3 and CS are used in this evaluation.
(Eq.12)
M,, s 312.9S/36)CA, (Eq.13)
M,, s 6250(S/36)CA,
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(Eq.14)
M,, s (11250A,-(fr/16)D/P,,]C(S/36) where: C
= Bolt circle diameter, in.
A,,
= Total cross-sectional bolt area at root of thread or section ofleast 2
diameter under stress, in.
D,
= outside diameter of raised face P,,
= pressure concurrent with M,,
t l
M,,
= applied dynamic design moment
(
- 1974 Edition of Section 111, but referred to as Equation 17 in the 1986 Edition of Section Ill.
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,V_ogtic Evaluation of Fittines O
The fittings evaluated are socket welded couplings NPS 2 and smaller with the majority being NPS 1 and smaller. Of the 10 fittings evaluated with hardness less than 381 Lo, none require derating for pressure. All fittings qualify for rated pressure loading on the basis of requiring a minimum tensile strength of 40 ksi as given in the Table Al of the NUMARC Report. The criteria is met O
because no Vogtle Unit 2 fittings have tensile strengths below 40 ksi.
All couplings at Vogtle Unit 2 evaluated for bending moment have Ratios to Code Allowables
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' ' generically acceptable, nis evaluation was made using O
NUMARC Table A3.
Vontle Evaluation of Blind Flangg O
There is only one blind Gange at Vogtle that required evaluation, and this blind Dange has a design pressure ratio under 0.3.
The converted tensile strength for this NPS 2,150 lb. blind Gange is M.3 ksi. The maximum system operating pressure is less than one half the derated pressure from the NUMARC Table Bl. This blind Gange is therefore acceptable.
O Voetle Evalua, tion of Fiances The Vogtle evaluation of flanges for pressure loading is based on pressure-temperature ratings established in NUMARC Table C1. All Vogtle Unit 2 Danges with hardness less than 381 Lo are g
acaptable for pressure loading. There were 49 such flanges.
For moment qualification of Danges with Yield Stress Ratios greater than 1.0, an adjustment was made to account for estimated ictd strength (1/2 the estimated tensile strength) being greater O
3 than the assumed yield strength used in NUMARC Table C2. When the adjusted Yield Stress Ratio exceeded 1.0, either the maximuni stress in the piping system or the stresses and moments from the stress analysis at the specific location were compared to the maximum permitted values O
shewn in Table C3 which are based on ASME Section til Equations (12), (13) and (14). The 49 wdd neck and slip-on Danges of SA-105 material ranging in sizes from NPS 11/2 to NPS 16, and mc.stly 150 lb. rating, were specifically evaluated at Vogtle in accordance with the NUMARC aderia for moment loading. Of the 49 Danges with measured hardness values less than 381 Lo g
7-g
w f
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all are qualified for pressure loadings by Table C1. Flanges were qualified for moment capacity using either the Yield Stress Ratios in Table C2 or the allowable stresses and moments in Table
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C3 of the NUMARC Report.
Vortle Evaluation of Plues Included in the 61 items with hardness values less than 3811, there is one NPS 1 plug that
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required a design evaluation. This plug is acceptable because its estimated tensile strength is 64.6 ksi, which exceeds the required tensile strength of the pipe (60 ksi). However, an analysis was made of primary bending stresses that confirmed stresses are less than 1/2 aNwables.
D fp_ Delusions All installed safety related WJM/ PSI material at Vogtle Unit 2 with hardness less than 381 I, were evaluated and found to meet or exceed the established design criteria.
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D D
Report on Generic Analysis and Evaluation of Suspect Material Identified in NRC Bulletin 88-05 i
O l
l i
8-9 L
~
O O
O Ci O
O O~
O O
O b
XUMARC LABORATORY TESTS WJM/ PSI SA-105 TS=0.2645LD - 29.84 105 0
100 95 E
C o
U 90
/
I O @)
Z g
]
85 G
g
'ct cqi
/
Z T-1 Io pg~
~
tower bound line g
00 b
f one standard Deviation g
O G"-
(a= 191 ) from best fit itne 5U C
O fil 75 o
3
~ [kf d
g
=NEd@h g
d 5
,0 a
Jsz B
O /,
e m
3b O
60 i
340 360 300 400
-120 440 460 480 EQUOTIP HARDNESS, LD (ONE SIGMA CORRELATION)
FIGURE 1
a ATTACHMENT 1
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REPORT
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ON GENERIC ANALYSIS AND
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EVALUATION OF SUSPECT NATERIAL IDENTIFIED IN NRC BULLETIN 88-05
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Prepared for
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NUNARC/EPRI By
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BECHTEL POWER CORPORATION July 21, 1988
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1 l
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I 1 PURPOSE The purpose of this generic analysis and evaluation report is to provide a
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basis for justification of suitability for indefinite service without replacement of potentially substrength material supplied by WMJ or PSI companies as identified in NRC 888 05 and its supplement. Components of suspect material identified to date include flanges, socket welded fittings,
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pipe caps and potentially some shear lugs.
Field tests are being conducted to identify substrength components among these suspect items. Where code properties cannot be confirmed, determination of suitability for indefinite service is based on conservatively assuming lower than specified strength
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values for suspect material and demonstrating that code design rules are satisfied with the assumed values.
This report represents one element of several in the overall program organized
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by NUMARC for the nuclear utilities to respond to NRC 88 05. Where generic acceptability of certain items is not established by the tables of this report or other elements of the NUMARC programs, guidance on plant specific l
' evaluations is provided.
D l
2 APPROACH 1
2.1 Conservative strength values of suspect material which are lower than specified code minimums are assumed for the purpose of the generic
- analysis, iD 2.2 Refer to related program elements on in situ testing for guidance on material identification and method of determination of implied strength I
values.
7/21/88 Page 1 a J
h 2.3 Using implied strength values for substandard material, compliance with code design rules is generically established using conservative bounding
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assumptions. Tables are provided sumarizing the results with guidance on required utility actions.
2.4 Refer to flow charts 1 through 3 for an overview of the evaluation process.
2.5 The primary intent of the testing and evaluation process is material
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identification.
Where a material identification can not be confirmed by field tests, this analysis, which considers an assumption of lower strength material properties, may be used to justify fitness for service.
2.6 Appendices A through C provide the recomended evaluation procedures for socket welded and threaded fittings, blind flanges, and other flanges.
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7/21/S8 Page 2 -
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SOCKET WELDED FITTINGS THREADED FITTINGS UTS < 70 KSI
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FITTING PIPE RATING DETERMINE ULT SIZE STRENGTH
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TYPE
- SCH, PRESSURE l COLLECT EVAL l
D DATA REMEW PER b
TABLES A1 -A5 l
1 L
h YES
,o OK DOCUM.
SUITABLE PERFORM PLANT FOR SERVICE P
UNIQUE ANAL FOR LIFE l
\\ YES K
- o NO EVAL OPER OR RFPI F.F g
7/21/88 Flow chart 1 0
p BLIND Fi ANGES UTS < 70 KSI FLANGE PIPE D
CLASS DETERMINE ULT SIZE, SCH.
STRENGTH TEMP.
D PRESSURE COLLECT EVAL l
DATA 3
REVIEW PER TABLE B1 e
YES OK ?
DOCUM.
/
O NO SUITABLE FOR SER\\nCE QUALIFY PER NC-3300 RULES FOR UFE YES i OK ?
O go EVAL OPERA 8.
REPLACE O
Flow chart 2
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UTS < 70 KSI FLANGE PlPE
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CLASS DETERMINE ULT SIZE, SCH.
STRENGTH TEMP.
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COLLECT EVAL DATA l
3 EVAL MOMENTS,C2 EVAL PRESSURE,C1
/N
\\ NO NO
/0K ?
OK ?
h 3
YES YES EVAL PER C3 DOCUM.
EVAL FURTHER C4, OR C5 SUITABLE 3
FOR SERVICE YES FOR LIFE YES
?
OK7 x
NO h
NO EVAL OPR I
EVAL OPR OR REPLACh OR REPLACE D
Flow chart 3 gg l3
4
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APPEEIX A
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SOCKET WELDED AND THREADED FITTIMS 1
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PROCEDURE FOR EVALUATION 0F NRCB 88-05 TEST RESULTS
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O 1 General Notes O
1.1 Refer to flow chart 1 for an overview of the evaluation process.
1.2 Generic evaluation tables should only be used when a suspect material O
is identified as potentially having lower strength than specified code 1
minimums.
O 1.3 The generic analysis tables provided here apply when the following conditions exist:
o Fittings are located in ASME class 2 and 3 or ANSI B31.1 systems.
O Fitting material is carbon steel (SA 105).
o o
Fittings are manufactured to ANSI B16.11 'tandards.
O 1.4 Tables are provided for socket welded and threaded couplings and half couplings.
O 1.5 Fittings qualified by Tables Al thru A5 satisfy code design rules using allowables derived from an assumed ultimate strength values (Su) of suspect material which are lower than code specified minimums.
Estimates of material strength based on the in-situ tests should be made in accordance
,O with tha Field Testing program element. Upon confirmation of adequate ductility of suspect substrength material by the generic sample testing program, fittings qualified by these tables may be considered suitable for service for the life of plant without replacement.
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- O Ai 7/21/88 O
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1.6 Moment loading qualification of fittings is based on the assumption that stress levels at the pipe to fitting interface are at the applicable-
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limits allowed by code. This is a conservative bounding assumption.
If a particular fitting fails to qualify per the applicable tables plant specific evaluations per the guidance of paragraph 2.4 of this appendix may be used to qualify the fitting.
O Evaluation Procedure 2.1 To qualify, each fitting should be determined acceptable for both f
pressure design (Tables Al or A4), and moment loading capacity (Tables A2, l
A3 or AS).
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2.2 To properly use the qualification tables, the following information is l
required:
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l o
Fitting type and rating o
Connected pipe size and schedule
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o System design pressure o
Specified corrosion allowance, if any o
Stress intensification factor (SIF) used in the original system
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design at socket welds.
o Ultimate strength Su of fitting material determined from in situ testing.
J 2.3 Pressure Design Qualification:
Using the appropriate information from paragraph 2.2 above and the 3
applicable table Al or A4 determine the minimum required allowable stress of the fitting material and the corresponding minimum tensile strength (Su) values.
Compare the minimum Su values thus determined with these obtained l
r/21/sa
- 2 3
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from the in-situ testing to determine acceptability.
Confirm that the Su values determined from testing are equal to or higher than the minimums 3
determined from the tables.
2.4 Moment Loading Qualification
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Using the appropriate information from paragraph 2.2 above determine the applicable margins (ratios) to code allowables from the applicable Tables.
Fittings are generically qualified when their ratios are equal to or less than 1.
D Fittings with ratios above 1 require plant unique evaluations to qualify for long term service (for plant life).
The plant unique evaluations for these fittings should consider actual moments from the system design 3
calculations and use the following parameters in evaluating applicable design equations, such as equations 9, 10 or 11 of NC/ND 3650; Fitting section Modulus (Zc) and fitting SIF ic from the appropriate columns in tables A2, A3, or AS.
Allowable stress values of the fitting material (S ) determined h
by the following equation:
Sh (fitting) = 0.25 Su
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Where Su = ultimate strength of fitting material determined from in-situ testing D
1 1
1 3
e 7/21/84 43 O
l l
l 1
CALCULAIIOne of ImE ataulat0 AttowA8tf StaE55Es FOR 50CEEI n&LOlanG fliliteG5 ( DESIGas PSE55Utt = 2,600 pseg )
IAstt A1:
I (1) Egaatser6 :
par Eq. (3) of seC-5641 in = P Do/2*5 + PY)
- A eAere:
P= Imitasant DESIGas PaE55 tire 00 = OUISIDE DIAsiETER Of IIIItalG (in) 5 = stAE. ALL(EdhetE Stats! FOR stATEalAL 3 DESIGN TEssP. (51, 52 and 53) in = WALL IntCKnE55 A = COR80580st ALLOWAmCE; en nAich, A1 = 0=; A2 = 0.000= and A3 = 0.125=
Y = 0.4 er T = d/d*O If Do/Im < 6 (2) Calculation of the respaired alleuable stresses :
5 ( allouable stresses ) = ( Poe / ( 2*(In-A) ) ) - P*T (3) Select minisum tensile strergth to gaelity (Su)1, (Su)2, or (Su)3 iAlch corresponds to the specified corrosion ellouence, A1, A2, or A3.
PIPE f!!ItasGS PIPE Isopelenat DESIGas PRESS. OU158DE WALL CORRO580st V
Regulate ALLOWASLE IIIM. TEustLE sittelGiu SIZE PSE55. SAllIIG DIA.
TulCE.
ALLUW.
STRESS TO Qualify P
Do Ta(min)
A1 A2 A3 Do/Ta 0.4 51 52 53 (Su)1 (Su)2 (su)3 (6nch) (psis) (Ibs)
(&nch) (inch) (inch) (inch) (inch)
(psi) (psi) (psi) (psi)
(psi) (psi) 1/2 2600 1.187 0.161 0.000 0.000 0.t a T.373 0.4 8544 40000 3/4 2600 1.411 0.168 0.000 0.000 0.125 8.399 0.4 9 tie 40000 1
2600 3000
- 1. 732 0.196 0.000 0.000 0.125 8.437 0.4 19444 41791 1-1/4 2600 2.101 0.208 0.000 0.000 0.125 10.101 0.4 12091 44365 1-1/2 2600 2.361 0.214 0.000 0.000 0.125 10.830 0.4 13039 52157 2
2600 2.892 0.238 0.000 0.000 0.125 12.151 0.4 14757 59027 1/2 2600 1.273 0.204 0.000 0.000 0.125 6.240 0.4 7072 12306 19908 40000 49224 **
3/4 2600 1.551 0.238 0.000 0.080 0.125 6.51T 0.4 T432 11T21 16803 40000 46886 1
2600 6000 1.886 0.273 0.000 0.000 0.125 6.906 0.4 1941 11664 15526 40000 46655 1-1/4 2600 2.231 0.273 9.000 0.000 0.125 8.172 0.4 9584 13967 1855T 40000 55950 l-3/2 2600 2.559 0.307 0.000 0.080 0.125 8.270 0.4 9711 13501 17096 40000 54002 2
2600 3.164 9.374 0.000 0.080 0.125 8.460 0.4 9958 12950 15479 40000 51802 m.2: e -"*. reans u.e9n evaluat ion is requerns.
.'.M
O O
O O
~O O
O-O O
O O-1 IAstE Alt CALOAAllons of Inf SEQutalD ALLOWWLE 518E5$ES 90R SOCKEI WLDiaG flilleG5 ( MSIGas pee 55Uaf = 1,350 paie 3 (1) Equet eens :
per Eq. (3) of mC-M41 Im = P De/2(5 + PY) + A nowre:
P= leltaan MSIGas PEES $Uaf Se = OWI518E SIAIEIER Of flilleG (in) 5 = stWE. ALLausant sieE55 FOR seAlfetAL 3 M5IGal IEseP. (11, 52 and $3) le = naEL istC101E55 A = CoseO$less ALLOWamCE; in eA6ch, A1 = 0"; A2 = 0.000" and A3 a 0.125" V = 0.4 er Y = d/d 0 8f Go/Im
- 6 (2) Calculat6en of the respelred altount>te stresses :
5 ( ett wo stresees ) = ( Pee / ( 2*(le-A) ) ) - P*V (3) Select einimm tenette streneth te g.atify (Su)1, (Su)2, or (Su)3 aAich corresponds to the specified corrosien atteneance, A1, A2, or A3.
PIPE PIPE IIIIIIsGS massteu M5tGa pee 55. (RalsIM WALL Cuneostons Y
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3/4 1350 1.411 0.168 0.000 0.000 0.125 8.399 0.4 5129 19283 21409 40000 41132
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2 1350 2.892 0.238 0.000 0.000 0.125 12.151 0.4 7462 11815 16F35 48000 47260 ~*
1/2 1350 1.2 73 0.204 0.000 0.000 0.125 6.240 0.4 36F2 6390 1033T 48000 40000 41348 3/4 1350 1.551 0.234 0.000 0.000 0.125 6.51T 0.4 3859 6006 8725 40000 40000 m 1
1350 6000 1.8e6 8.273 0.0c0 0.000 0.125 6.908 0.4 4123 4056 8062 40000 40000 40000 1-1/4 1350 2.231 0.273 0.000 0.000 0.125 8.172 0.4 4976 7263 9635 40000 40000 40000 1-1/2 1350 2.539 0.307 0.000 0.000 0.125 8.210 0.4 5062 7010 8877 40000 40000 40000 2
1550 3.164 0.374 0.000 0.000 0.125 8.460 0.4 5170 6724 5037 40000 40000 40000 swee --- : Plant inuwe evaluation is rewired.
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IASLE A3: CALCULAII0ss Of TNE RAII0 Of sechtki of lesERII A CostP0antNi. SOCKLI-WE10I E COuFtt E S & ItALf COUPt1 E S l
l l
l l
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l Ratio to Code Atteust>tes (Ic*2p/lp*2c)*(60/Su) l l-------------~~----lCduP1100Cl.-----..----~~....~.-~.-----~.-..~...-~~.~~..--..~---...l l ascos. ) Pats 5umE l PIPI E l PIPtesG l PAPE l PIPE lt*1PE l CLASS l CLASS l(MISIDE l WALL l5ECi!008 l l
l lIc(5!f)=l (Primary) Ip ($II) = 2.1 l
(secondary) Ip (5I7) = Z.1 l
l C2*st2/2 l - - - - - - -. --- - - - - -- - ~ - -- - - - - -. l - - - - - -... - - -. ~ -. ~ -. - - --. - -- - - - - - l 8
l C l 2c l SIZE lD(5tGanAllassl5CutDutElOlmeEttalINicausE55les0DutuS l l
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l Su=60 kas j Su=56 kst l Su=40 ksl l Sur60 kai l Su.56 koi 8 su 40 kai l lg........____.___.............................___.....__.......................__...........__.................................g...................................g l
l 3000 l 40 l 0.840) 0.109l 0.044l0.865l0.161l0.118l 2.250l 0.416l 0.445l 0.624l 0.416l 0.4 5 l 0.624l l1/2= l 3006 l 80 l 0.840l 0.147 l 0.055l0.865l0.161l0.118l 2.250l 0.*.J4l 0.540l 0.756l 0.504l 0.540l 0.756l l
l 6000 l 160 l 0.840l 0.187l 0.063l0.865l0.204l0.159l 2.250l 0.421[
0.451l 0.632l 0.421l 0.451 l 0.632l l
l....................
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l l 3000 l 40 l 1.050l 0.113l 3.078j1.075l0.168l0.183l 2.250l 0.457 l 0.489l 0.685l 0.45T l 0.489l 0.685l l
l3/4" l 3000 l 80 l 1.050l 0.154l 0.097l1.015l0.168l0.183l 2.250l 0.569l 0.610l 0.853l 0.569i 0.610l 0.853l l
l 6000 l 160 l 1.050l 0.218l 0.119l1.075l0.238l0.282l 2.250l 0.451l 0.483l 0.676l 0.451l 0.483l 0.676l g..........................................._-....._~..................---................g.......__.g...........g..........g...~.....g..._.......g...........l l
l 3000 l 40 l 1.315l 0.133l 0.146l1.340l0.196l0.32Tl 2.250l 0.478l 0.512l 0.717l 0.478l 0.512l 0.717l l
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l 3000 l 80 l 1.315l 0.119l 0.181l1.340l0.196l0.327l 2.250l 0.594l 0.636l 0.891l 0.594l 0.636l 0.891l l
l 6000 l 160 [ 1.315l 0.250l 0.223 l 1.340 l 0.2T3 l 0.491 l 2.250l 0.486l 0.521l 0.729l 0.486l 0.521l 0.729l g................................................~...........................~..........g...........g.__...__.~g...........g...........g...__..--...g...........g l
l 3090 l 40 l 1.660l 0.140l 0.254l1.685l0.208l0.534l 2.250l 0.510l 0.546l 0.765 l 0.510l 4.546l 0.765l l1-1/4"l 3GJO l SG l 1.660l 0.191l 0.324l1.685l0.208l0354l 2.250l 0.650l 0.696l 0.9F5l 0.650l 0.696l 0.975 l l
l 6000 l 160 j 1.660l 0.250l 0.390l1.685l0.273l0.735l 2.250l 0.569l 0.609l 0.853l 0.569l 0.609l 0.853l l..................___....._....__..._______................___..........................l......__..g...........g...........g...........l...........g...........g l
l 3000 l 40 l 1.900l 0.145l 0.351l1.925l0.218l0.721l 2.250l 0.521l 0.558[
0.782l 0.521l 0.558l 0.782l l1-1/2=l 3000 l 80 l 1.900l 0.200l 0.454l1.925l0.218l0.721i 2.250l 0.675l 0.723l 1.012l 0.675l 0.723l 1.012l l
l 6000 l 160 l 1.900l 0.281l 0.578l1.925l0.30Tl1.076l 2.250 l 0.576l 0.6171 0.864l 0.576l 0.617l 0.864l g....._..........................___....__............._~_-...__-.......___...........g.._.__.....g...__..__.g.......--..l...-_-.-...l...........g...........g l
l 3000 l 40 l 2.375l 0.154) 0.59Tl2.416l0.238j1.218l 2.250l 0.525 l 0.562l 0.78Tl 0.525l 0.562l 0.787 l l
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seten (1) Socket weldsng copts.egs armi a att compt angs generically Pat sfy if the indacated rath to code altreat>te correspondes to the materiet su is = or.1.0.
Interpolate for entermediate su watues.
(2) Ic. Se< tion se htus (thsch mat t) of component; Ip = Section sudutus (then matt) of pipe; Ic = Sif of componr.
Ip = SIf of pipe or weld.
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ans gia'I.,t._e!
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=
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. i.. r ssssss ssssss 33_
!,s :I s _::1
!s ai 44444a 444435 Il a
v ls,-
=2:i2
---~~-
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.3 a
e.-
- =8' JW II
=
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- .-*~~
l l
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- =
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=.
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gs:
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il 8
1 2
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g5 j
35-ff~
j O
l g
O
1A8tt AS: CALCULAllons Of INE RAlto Of BeastEhi Of ImfRilA I
CleePontal. IntREADED COUPLI46G5 & IIAlf COUPLlaeG5
..u.u.u.u.uu....uuu..un.u....uu...uuuuu..u =u-.=========uun..uun.....=.uuuu.u..u usu..u
..u......................un a
l l
l l
l l
l CouPtimGS l
l Satie to Code Attoiset les (Ic*2p/lp*Ic)*(60/Su) l l mose. jPetS5uti l PIPimG l PIPImG l PIPE l PIPE l----~.-----------[COLFLIIeGl-~.----------.--.-----------.-.-.~..-~...._~~~.--.-...~~l l78Pt l C1A55 lCLA55 l0u1510E l nantt l5ECitons l l
l lIc(5tf)=l (Primary) IP (Sif) = 2.3 l
(Secondary) Ip (SIf) = 2.3 l
OD l ta l 2c lC2*E2/2l-----~.--------~..---------~.l--.----------.---.--...-----l lSIIE l0tSIGnailomlstatDULEl08Asuf1EalIntCtasE55lstacuttsi l l
l l
l l
l l
l l
l l Su=60 kal l Su=% hai l Su=40 kai l Su=60 kai l Su=% ksi l Su=40 kai l g.............-.........-.......................................-......__......___..............___.....__............___....l......_......................-....g l
l 3000 l 40 l 0.840l 0.109l 0.656l1.120l0.1088l0.080l 2.250l 0.%1 l 0.601l 0.841l 0.%1 l 0.601l 0.841[
l If2* l 3000 l 80 l 0.840l 0.147 l 0.055l1.120l0.1088l0.080l 2.250l 0.680l 0.T28l 1.020l 0.68el 0728l 1.020l 4
l l
6000 l 160 l 0.840l 0.187 l 0.063l1.500l0.2988l0.288l 2.250 l 0.213l 0.228l 0.319l 0.213l 0.228l 0.319l g.-.._....._.........._.~.__.........--.........~...........-..........................g...........g.....,....g__-..-....g...........g...........g...........l l
l 3000 l 40 l 1.050l 0.113l 0.078l1.380l0.1337l0.149l 2.250l 0.511l 0.548l 0.767l 0.511l 0.548l 0.767l I
l3/4" l 3000 l 80 l 1.050 l 0.154 l 0.097[1.380l0.133Tl0.149l 2.250l 0.63T l 0.683l 0.956l 0.63Tl 0.683l 0.9% l l
[
6000 l 160 l 1.050l 0.218 l 0.119l1.750l0.3188l0.440l 2.250l 0.263l 0.282l 0.395l 0.263l 0.282l 0.395 l l
g......_......_._...........~....-.................--_....._.----......-_.................l...........g...........l.........-l.......-...l-.....__-.l--........g l
l g 3000 l 40 l 1.315l 0.133l 0.146 l 1.50 l0.1863 l 0.324 l 2.250l 0.e.40 l 0.472l 0.661l 0.440l 0.472 l 0.661l I
l t=
l 3000 l 80 l 1.315 l 0.179 l 0.181 l 1.50 l0.1863 l 0.324 l 2.250[
0.548l 0.587l 0.821l 0.548l 0.587l 0.821l l
l 6000 l 160 l 1.315 l 0.250l 0.223l2.250[0.4%3l0.961l 2.250l 0.227l 0.243l 0.340l 0.22T l 0.243l 0.340l g............--.......--......_....-..............--...~..__............................l.....--....g....~.....l......--..l...........l...........l--.........l l
l 3000 l 40 l 1.660 l 0.140l 0.254l2.250l0.2638lc.734l 2.250l 0.339l 0.363l 0.508l 0.339l 0.363l 0.508l l1-1/4" l 3000 l 80 l 1.660 l 0.191l 0.324 l 2.250 [0.2638 l 0.734 l 2.250 l 0.431l 0.462l 0.64Tl 0.431l 0.462l 0.647l l
l 6000 l 160 l 1.660l 0.250l 0390l2.500[0.3888l1.46l 2.250l 0.321l 0.344l 0.482l 8.321l 0.344l 0.482l g..._._........~...............-...-_---...-.-----.-.~,.._-_--.~....--..-..............g...........l--...--....l..........-l-----...--l----......-l-.-........l l
[ 3000 l 40 l 1.900l 0.145 l 0.351l2.500l0.2688l0.951l 2.250l 0.361l 0.386l 0.541l 0.361l 0.386l 0.541l l1-1/2= f 3000 l 80 l 1.900l 0.200l 0.454l2.500[0.2686[0.951l 2.250l 0.46T l 0.500l 0.700l 0.467 g 0.500l 0.700l l
l 6000 l 160 l 1.900l 0.281l 0.578 l 3.000 l0.5188 l 2.165 l 2.250l 0.261l 0.280l 0.392l 4.261l 0.280l 0.392l g._.............................._........._._-........--....---..............___.........l..-_..-....l__.-...--..l..-~-...--l----.......l..--.--....l.....-.....l j
l l 300C l 40 l 2.3F5 {
0.154 l 0.597l3.000[0.2813l1.496l 2.250l 0.390l 0.418l 0.585l 0.390l 0.418l 0.585l l
2*
l 3000 l 80 l 2.375 l 0.218l 0.797l3.000[0.2813l1.496l 2.250l 0.521l 0.558l 0.782l 0.521l 0.558 l 0.782l l
l 600C l 160 l 2.375l 0.343l 1.112l3.620l0.5913l3.700l 2.250l 0.294l 0.315l 0.441l 0.294l 0.315l 0.441l g..__...........-..___._~......--~...........~...-.~....-.......---._~....-....-~.~...-....-~.--~.....-~.....~.----....-..---.--..--------.~-..--
(1) Socket uelding co+ tangs arms hatt ce+t engs genericatty spastif y 6f the endicated retto to code attoimable corresporuses to the materlat Su is = or < 1.0.
metes:
laterputate for intermediate Su values.
1 (2) Ic. Section es btus (the(k e.at t) of ce+onent; 2p = section stoihtus (then esatt) of pipe; Ic. Sif of component; Ip. Sif of pipe or ueld.
I I
H. lf.sN
O O
O APPENDlX B
'O
'O BLIND FLANGES
.O PROCEDURE FOR EVALUATION OF NRC8 88-05 TEST RESULTS
.O
'O lO O
iO
\\
1 General
)
1.1 P.sfer to flow chart 2 for an overview of the evaluation process.
1.2 Generic evaluation tables should only be used when a suspect material
)
is identified as potentially having lower strength than specified code minimums.
)
1.3 The Generic Analysis table B-1 apply to Blind Fla.ges when the following conditions are met:
o Blind flanges are installed on ASME Class 1, 2, 3 or ANSI B31.1 piping systems.
l 3
Material of construction is carbon steel (SA 105).
o o
Flanges are manufactured to ANSI B16.5 standards.
)
1.4 Blind flanges qualified by the generic analysis table satisfy code design rules using yield strength values derived from an assumed ultimate strength values (Su) of suspect material which are below code specified minimums.
Estimates of Su values based on in situ should be made in accordance with the Field Test program element. Upon confirmation of adequate ductility of suspect material t,y the generic sample testing program, blind flanges qualified by Table B1 may be considered suitable for service for the life of the plant without replacement.
1.5 Allowable pressure / temperature values in Table B 1 are provided for materials with ultimate strength values between 40 and 69 KSi.
O
)
rn. 2
!O
D 1.6 The allowable pressure values in Table B-1 arc based on derating the correspon',ing ANSI B16.5 Values by a factor of sy D
36 whe.re Sy = Yield strength, in KSi, of the sur'ect material at room temperature, taken as 0.5 Su.
Su - Ultimate strength value of the suspect material as determined from the in-situ testing, KSi i
l 2 Evaluation Procedure l
'3 l
l 2.1 To properly use the qualification table, the following information is
)
required:
o Blind flange pressure class 3
o System design pressure and temperature j
1 o
Ultimate strength (Su) of flance material as determined by the in situ testing.
,O 1
2.2 Using the system design temperature, the pressure class of the blind flange, and the Su value obtained from testing determine the allowable
'O design pressure from tablo 81.
Compare the allowable design pressure to system design pressure. Acetptability is e:;tablished when the allowable pressure is equal to or greater than the system design pressure.
O 2.3 If system design pressure exceeds that allowed by Table B1, for the applicable temperature and material strength, then plant unique evaluations should be performed to the rules of paragraph NC-3325.2 of Section !!!
Code.
Use allowable material (S) values determined as follows:
O S = 0.25 (Su)
(S) value is applicable up to 500'F l
O 7/21/8a 8a lO l
TABLE B1: FLANGE PRESSURE / BOLT UP QUALIFICATION BY DERATING
--c,------------------------------------_---------------------..---------__---------------
PRESSURE-TEMPERATURE RATING PER ANSI B16.5 TABLE 2
c PRESSURE CLASS TEMPERATURE
-- - - = - -
= - - = = - - -
=
=-- --
====-
deg F 1508 l
3008 l
6003 l
900$
l 15006 l
25004
_=_
l(1) (2) (3) l(1) (2) (3) l (1)
(2)
(3) l (1)
(2)
(3) l (1)
(2)
'3) l (1)
(2)
(3)
_ = _ - -
_ _ = _ -
- _ _ _ - _ _ _ _ _ _ _ _ =
-=
-2@ to 100 285 222 158 740 576 411 1430 1151 822 2220 1727 12S":
3705 2882 2058 6170 4799 3428 200 260 202 144 675 525 375 1350 1050 750 2025 1575 1125 3375 2625 1875 5625 4375 3125 30' 230 lis 128 655 509 364 1315 1C23 731 1970 1532 1094 3230 2551 1822 S470 4254 3039 49 2C0 156 '13 635 494 353 1270 988 706 1900 1418 1056 3170 2466 1761 S280 4107 2933 50s 170 132 94 600 467 333 1200 933 667 1795 1396 997 2995 2329 1664 4990 3881 2772 600 140 109 78 550 423 306 1095 852 608 1640 1276 911 2735 2127 1S19 4560 3547 2533 650 125 97 69 535 416 297 1075 836 597 1630 1252 894 2685 2088 1492 4475 3481 2486 700 110 86 61 535 416 297 1065 828 592 1600 1244 889 2665 2073 1481 4440 3453 2467 I
750 95 74 53 505 393 281 1010 786 561 1510 1174 839 2520 1960 1300 4200 3267 2333 l
800 80 62 44 410 319 228 825 642 458 1235 901 686 2060 1602 1144 3430 2668 1906
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = = - - - - = = - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - = = = = = - - = = - _ = = - - = - - - - - - -
l PRESSURE RATING FOR MATERIAL WITH Su = 70 ksi LEGEND: (1) :
PRESSURE RATING FOR MAT 2 RIAL WITH Su = 56 ksi (2) :
(3) : PRESSURE RATING XR MSTERIAL WITH Su = 40 ksi l
NOTES : (1) INTERPOLATION FOR DIFFERENT Su VALUES MAY BE USED.
(2) THIS TABLE APPLIES TO BLIND FLANGES AND OTHER TYPICALLY USED TYPES OF B16.5 FLANGES eeeeeeeeeeeeeenaaemeeeeeeeee*ame**eme ***eeeeeeee***&e*******eseeeeeeeeeeeeee***seeee*******
- EVAllJATION ACTION :
VERIFY THAT SYSTEM DESIGN PRESSURE IS EQUAL TO OR LESS THAh THE APPLICABLE e
PRESSURE RATING FROM THE ABOVE TABLE FOR THE Su VALUE ESTABLISHED FROM TESTING AND SYSTEM TEMPERATURE.
eeseeeeeeeeeeeeeeee***eeeeeeeeeee******eeeeeeeeeeeeeeeeeee**eeeeeeeeeeeee**ee********e
- ee.
Ygi!&
2 3
3 APPENDIX C O
i FLANGES O
PROCEDURE FOR EVALUATION OF NRC8 88-05 TEST RESULTS O
O O
O O
O 1 General Notes l
O 1.1 Refer to flow chart 3 for an overview of the evaluation process.
1.2 Generic evaluation tables should only be used when a suspect material is idei.;ified as potentially having lower strength than specified code O
minimums.
1.3 The generic analysis tabits provided here apply to flanges when the 4
following conditions are met:
O Flanges are installed in ASME class 1, 2, 3 or ANSI B31.1 piping o
systems.
1 -
o Mattrial of construction is carbon steel (SA 105).
1
- O o
Flanges are manufactured to ANSI B16.5 standards.
)
1.4 Evaluation tables are applicable to all connonly used ANSI B16.5 j
flanges which are welded to piping.
For loose flanges evaluation Table c1 O
need only be applied.
i 1.5 Flanges qualified by the generic annlysis table satisfy code design rules using yield strength vslues derived from an assumed ultimate strength jO values su of suspect material below code specified values.
Estimates of Su values based on the in-situ testing should be made in accordance with the l
i l
Field Testing element. Upon confirmation of adequate ductility of suspect
(
l substrength material by the generic sample testing program, flanges with Su O
of 56 Ksi or higher qualified by Tables c1 and c2 or c3 may be considered I
suitable for service for 1.he life of the plant without replacement.
l 1
I i;O 1.6 Generic qualification table (c1) for pressure design is provided for i
suspect material with an su values bstween 40 and 69 KSt. Generic qualification table (c2) for moment load design is provided for suspect l
material with an Su values b9 tween 56 and 69 Khi. Allowable moment leads, lG T/21/88 C1 1.r j
O
}
=
_ _.. _ _, _ _ _ _ _ _. _ _, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ _ _ _ _ _ _ _ _ _ _ _ _ _
)
Table C3 are provided for f'.anges not qualified by Table C2. Tables C4 and C5 provide comparable qualification and allowable moment loads for flanges
)-
with an su value less than 56 K51.
1.7 Pressure qualification Table C1 provide dorated AN51 B16.5 allowable pressures at temperature. A derrating factor of sy
)
is used, where Sy - Yield strength of suspect material taken as 0.5 Su.
Su - Ultimate strength value of suspect material as determined from
)
I in-situ tests.
i 1.8 Generic moment load qualification Table C2 provide margin (ratios) to code allowables, per NC 3654 of Section !!!. for commonly used flange / pipe
)
size mix using the following basist i
Pipe weight stress - 3000 psi Pipe thermal exp. stress = 0.6 Sa for classes 150, 300 and 600 j
flanges, and 1.0 Sa for classes 900 and above.
Bending moment equals torsional moment.
Equation 12 of NC 3658 is used, i
)
The above basis is conservative and is consistent with the manner of usage of flanges because; Flanges are typically located at equipment nozzle connections,
{
o
)
where allowables for equipment nozzle loads control.
o Class 150, 300 and 600 flanges are typically used for colder
[
piping systems.
J o
Class 900 and above flanges are typically used for hotter system l
j with higher pressures, j
I e
O I
7/21/88 C2 i
(
l o
Using the above basis automatically envelopes dynamic moment i
loadings of magnitudes equal to or greater than piping allowable
)
stresses for levels B, C and D.
Thus equations 13 and 17 of t
NC-3658 are enveloped.
l j
1.9 Tables C-3 and C-5 provide allowable moments for applicable plant l
condition / service level to be used in evaluating flanges not qualified by Tables C2 or C4.
2 Evaluation Procedure 2.1 To qualify each flange should be determined acceptable for both pressure design (Table C1), and moment loading (Table C2 or Tables C3 3
throughC5).
2.2 To properly use the qualification tables, '5e following information is 3
required:
o Flange type and rating o
Connected pipe size and schedule o
System design pressure and temperature 3
Ultimate strength Su of suspect flange material determined from o
insitu testing.
2.3 Pressure Design (Table C1) g Using the system design temperature, flange pressure class, and Su value of suspect material, determine the allowable design pressure.
Compare system design pressure to the allowable pressure.
Insure that the allowable O
pressure is greater than the system desian pressure.
Table C1 applies to welded as well as loose flanges, j
lC 1
(
7/21/88 C3
'O
O Flanges not qualified by Table C1 require qualification by Appendix XI of ASME Section !!! code rules.
o 2.4 Moment Loading Qualification (Table C2) o Using applicable data from paragraph 2.2
- above, determine O
acceptability of the suspect flanges with an Su value of between 56 KSt and 69 KSi.
Flanges with yield stress ratios indicated on the table of 1 or O
1ess are acceptable.
should be Flanges with ratios exceeding 1,
marked with ***,
evaluated using Table C3 and actual moment loadings from plant O
calculations.
o Use Tables C4 through C to qualify flanges with Su values between 40 KSi and 56 KSt.
Compare actual moment loading to those allowed by the tables.
Insure actual moments are lower than O
allowables, o
Moment loading evaluations of loose flanges are not required.
,0
- O iO I
!,O 7/21/58 C4
- 0 i
Oi l
L TABLE C4: tt0Uttto f!!LD titt$$ RAf!O CALCVLAf!0W 8A$t3 ON WC 3658.1 FOR MAf tetAL wifM sy a 20 usi l
P!PE FLANG8 Pipe site 150 the 300 lbe 300 lbe 600 the 600 the 900 the 900 lbe 1500 lbe 1500 lbe 2500 Les Sch.std Sch.80 Sch.160
$sh.160 sch.xxl Sch.xx$
2.5" Pirt 0.906 0.365 0.459 0.304 0.387 0.298 Sch.s5 Sch.80 Sch.160 sch.160 Sch.160 Sch.xxs Sch.x12 3.0" PIP 8
" 1.335 0.533 0.713 C.701 0.398 0.488 0.338 Sch.std Sch.std Sch.80 Sch.80 Sch.120 Sch.160 sch.sxt 4.0" PIPE 0.987 0.629 0.569 0.689 0.605 0.531 0.381 Sch.sts sch.std Sch.80 Sch.80 sch.120 sch.160 sch. sal 6.0" PtPt
" 1.364 0.813 0.605 0.644 0.853 0.681 0.461 sch.std Sch.std Sch.80 Sch.100 Sch.80 Sch.120 Sch.160 8.0" PIPt
" 2.1 72 0.943 0.802 0.931 0.723 0.964 0.822
)
sch.sto sch.std Sch.80 sch.100 sch.$3 sch.120 sch.160 10" PiPt
" 1.526 0.813 0.703 0.830 0.843 " 1.140 0.958 Sch.sta Sr.h.std Sch.60 Sch.80 sch.100 Sch.120 sch.160 12" PtPt
" 1.866 0.811 0.873 0.810 0.969 " 1.339 0.890 Sch.std Sch.std Sch.60 Sch.80 Sch.100 Sch.120
)
14" PIPE
" 1.560 0.689 0.796 0.836 " 1.015 " 1.373 Sch.std Sch.ste Sch.40 Sch.80 sch.100 Sch.120 16" PIPt
" 1.358 0.635 0.833 0.876 " 1.044 " i.556 Sch.std Sch.std Sch.XS Ich.80 Sch.100 Sch.120 18" PIPE
" 1.2 13 0.612 0.805 0.972 " 1.168 " 1.475
}
Sch.std Sch.Il sch.60 sch. E sch.100 Sch.12C 20" PIPt
" 1.158 0.916 " 1.078 0.995 " 1.203 " 1.624 Sch.std Sch.x5 Sch.60 Sch.80 sch.100 Sch.120 24" PIPE
" 1.107 0.772 " 1.045 " 1.043 a 1.323 " 1.452
)
totes: (1) See peregraph 1.8 of Appensia C for en esplanetton of the beats of the ratios calculatec above.
(2) welded flerges generically satify for sement Loading if the stated yield stress ratio is e or = 1.0.
Yield strse ratio is defined as the retto of the yield stress rew ired to satisfy owetion 12 of =C 3658.1, using spents calculated rar note (1) awve (lyr), to the suscect meterial yield strees of 28 Est a syr/28.
(3) feele C2 celeutetes the rewired yield stress ratios for suspect meterial with a yield stress
)
of 28 rat and a tensite stress of 56 Est. For suspect seterial with higher su then 56 Est.
mLttply the stated ratios try the f actor 56/$w.
(4) " Denotes Sy ratio esceoss mity. Plant specific eveLwtion rewired. See seoerete toele 'or mesisum sement and pipiry stress eLLcwed.
(5) flanges of 2" ares below in site of arvy class genericelty e alify assaing pipe thermal stress 7
l is at 100% of alloweele. Manteum ratio calculated is 0.848.
i
)
TABLE C1: FLANGE PRESSURE / BOLT UP QUALIFICATION BY DERATING
,.-==========================a====================================----==================================
PRESSURE-TEMPERATURE RATING PER ANSI B16.5 TABLE 2
=================================
=====,==================================================S PRESSURE CLAS
= = -
TEMPERATURE
===- =
deg F 1500 l
3003 l
6003 l
9006 l
15006 l
25008
- - - - - - - - - - - - _ = _ - _ _ - - - - - - - -
- _ - = _ _ =.-
=-
l(1) (2) (3) l(1) (2) (3) l (1)
(2)
(3) l (1)
(2)
(3) l (1)
(2)
(3) l (1)
(2)
(3)
_==-=--------=-_ __ _ - - _ - - - - = -
= -
-20 to 100 285 222 158 740 576 411 1480 1151 822 2220 1727 1233 3705 2882 2058 6170 4799 3428 200 260 202 144 675 525 375 1350 1050 750 2025 1575 1125 3375 2625 1875 5625 4375 3125 300 230 179 128 655 509 364 1315 1023 731 1970 1532 1094 3280 2551 1822 5470 4254 3039 400 200 156 111 635 494 353 1270 988 706 1900 1478 1056 3170 2466 1761 5220 4107 2933 500 170 132 94 600 467 333 1200 933 667 1795 1396 997 2995 2329 1664 4990 3881 2772 600 140 109 78 550 428 306 1095 852 608 1640 1276 911 2735 2127 1519 4560 3547 2533 650 125 97 69 535 416 297 1075 836 597 1610 1252 894 2685 2088 1492 4475 3481 2486 700 110 86 61 535 416 297 1065 828 592 1600 1244 889 2665 2073 1481 4440 3453 2467 750 95 74 53 505 393 281 1010 786 561 1510 1174 839 2520 1960 1400 4200 3267 2333 800 80 62 44 410 319 228 825 642 458 1235 961 686 2060 1602 1144 3430 2668 1906
==========================================================================================
PRESSURE RATING FOR MATERIAL WITil Su = 70 ksi LEGEND: (1} :
PRESOURE RATING FOR MATERIAL WITH Su = 56 ksi (2) :
PRESSURE RATING FOR MATERI AL WITH Su = 40 ksi (3) :
NOTES : (1) INTERPOLATION FOR DIFFERENT Su VALUES MAY BE USED.
(2) TIIIS TABLE APPLIES TO BLIND FLANGES AND OTHER TYPICALLY USED TYPES OF B16.5 FLANGES emeneeeeeeeeeeeeeeeeeeeeee******************.****emee****ee*********************************
- EVALUATION ACTION :
VERIFY THAT SYSTEM DESIGN PRESSURE IS EQUAL TO OR LESS TilAN THE APPLICABLE e
PRESSURE RATING FROM THE ABOVE TABLE FOR THE Su VALUE ESTABLISHED FROM e
e TESTING AND SYSTEM TEMPERATURE.
- neeeeeeeeeeeeeeeeeeeeee**********ee e*********emeeeeeeeee***********eeeceae************een W., w
F
.m f
_/V p
TAILL C2: tteultto fit'.D SittSS RAf to CALCULAfl04 BAlt0 ON WC 3658.1 Fce MAf tt1 AL WIfM Sy = 28 csi O
PIPE FLANG8 Pipe Site 150 the 300 the 300 the 600 the 600 the 900 the 900 lbe 1500 lbs 1500 lbe 2500 lbs Sch.std Sch.80 Sch.160 Sch.160 Sch.111 Sch.tXS Q
2.5" PIPt
- 0. F '
O.261 0.328 0.217 0.276 0.213 Sch.std Sch.00 Sch.160 Sch.160 Sch.160 Sch.IIS Sch.xx5 3.0" PIPE 0.953 0.381 0.509 0.501 0.284 0.349 0.241 Sch.ste Sch.std Sch.80 Sch.80 Sch.120 Sch.160 Scm.xx$
4.0* PIPE 0.70S 0.449 0.407 0.349 0.432 0.379 0.2 72 O
Sch.std Sch.sta Sch.80 Sch.80 Sch.120 Sch.160 Sp.xx$
6.0" PIPE 0.9 75 0.581 0.432 0.489 0.609 0.486 0.330 Sch.ste Sch.std Sch.80 Sch.iOO Sen.80 Sch.120 Sen.160 8.0" PIPt
" 1.552 0.674 0.573 0.665 0.516 0.703 0.547 O
,,,,,e 7,,,,e
,,,,o
,,,,,o,,,,o
,,,32,
,,,igo 10" PIPt
" 1.090 0.581 0.502 0.593 0.602 0.814 0.684
'ch.std Sen.std Sch.40 Sch.80 Sch.100 Sch.120 Sen.160 12" PIPt
" 1.333 0.579 0.624 0.579 0.692 0.954 0.636 O
Sch.sti Sch.std Sch.40 Sch.80 Sch.100 Sen.120 14" PIPt
" 1.114 0.492 0.568 0.597 0.725 0.981 Sch.ste Sch.std Sch.40 Sch.80 Sch.100 Sch.120 16" PIPt 0.970 0.454 0.59$
0.626 0.744 " 1.112 Sch.std Sch.std Sch.Il Sch.80 Sch.100 Sen.I20 O
18" Pipt 0.9i6 0.437 0.5 75 0.694 0.834 " i.e53 Sen.std Sch.IS Sch.40 Sch.80 Sen.100 Sen.120 20" PIPt 0.827 0.654 0.770 0.710 0.859 " 1.160 Sch.ste Sch.IS Sch.40 Sch.00 Sch.100 Sch.120 3 ''
' 55'
' 7'?
0.774 0.945 " i 037 0
totest (1) See peregresh 1.8 of Appenois C for en espleetion of the tests of the retics calculated abows.
(2) Welded flanges generically wellfy for soent Leadirg if the stated yield stress retto is e or a 1.0.
field stres rette is defined as the retto of the yield stress rew ired to atisfy eestien 12 of sc.3654.1. using saments calculated per note (1) ecove ($,r), ti, tM uspect meterial yield strees of 28 cat e Syr/28.
O cn f.ete C2 ceicutette the re. ired vietd siress renes for ea ect =ierlet.in a yiete stress of 28 cs..nd. t.e.ite stres. of 56 csi.
,er sop.ci =ieriet.itn hi n.e su tn.n 56 cat.
sialtiply the stated rettee by the f actor 56/$w.
(4) " Denotes Sy rette exceeds mity. Plant specific evolution roeired. See separate table for
= aisua summent and piping stress allowed.
f (5) Flanges of 2" and below in site of any stess Serwrically walify/stuming pipe thermal stress
' ''''- "'"' " '"'* ' ' J' O
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TABLE C3 MAXIM MCsetti Aho PIP!h3 tittSS ALLOWED FOR FLANGil WitM sy RAfl0 EXCitDING Uutif
)
FOR MAftt! AL Wlin gy. 28 ksi (su 56 tal)
Pit NC 3658 MAXIM ALLOWED LCADS At PIPE C0httCil04 LEVEL A LEVEL B LEYtL C/D PIPE FLAuGE PIPE (touAfl0N 12)
(touAfl0N 13)
(EQUAflom 17)
SIZE P e t S tue t S C ME DUL E " ' " * " " " " " * * " " " * " " * " " " " " " " ' a " " " * " " " * " "
tAtthQ PIPt PIPE PIPt postui stats $
Mtut
$7tt$$
MCpt NT sittst 4* P!Pt 150s
$f0 68999 7521 137997 15043 218034 23768 10 PIPE 150s 370 174147 10701 344294 21402 573843 35263
)
12 PIPE 150s
$f0 20T754 8752 415508 17105 660294 27817 14 PIPt 150s 570 301328 10410 602654 20819 971451 33559 16 PIPE 900s 120 1785911 16222 3571823 32445 4211194 38252
)
18 PIPt 90Cs 120 2689313 17119
$378625 34238 6499337 41372 20 Pipt 900s 120 3298264 15542 6596528 31085 T703125 36299 24 Pipt 900s 120 6410955 17346 12821910 34 771 16034375 43483
)
Notes (1) Alloweele moments shcwn above are for bending moments or torsional moments consicered seperately.
(2) Full veLue of 1.9 le used as llP for ffJ et flenge end in estcutetleg piping stress.
Stress veLue allowed should be adjusted if different SIF value le costred.
(3) Pfd.150 pois for 150s ord 1750 pels for 900s *.re essmed in evaluating the maainui arcont allowed for level C/0.
)
(4) units ma.ont in inch so scel stress in pet.
(5) Woments ord pipe stresses are per speelf ted loading coseinetton in WC 3458 erd plant.
es followel Level A (eq.12) : VT
- T4 (ment.us ther.et expenelon)
Level I (eq. 13) : VT
- fu. OSE
- other level I toede if any.
Level C/0 (eg.14) : VT. f4. $$t. other level C or 0 Leede if any.
Ott ord $$t toede any be ccuelned by the s@ere root of the se of swores (talt) method with other eglice4Le ermnic toeos f rom tevels B or C/D conditions.
(6) For su values between 56 and 70 cat..ultiply the above etic =ette moments by a f actor I
of Su/56.
(7) Use the elloweele Loade per note (1) ecove to evelvete the flectes shown with testreegtm.
If mesent values er not sveitable, the pipe stress colum allowebles may be conser*
vetively used.
P v
O
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TABLE C$3 MAXIM.M Otti /h0 PIPikG Sit:
ALLCMD FOR FLANGil WifM Sy RAfl0 EXCt. tG UNiff FOR MATERIAL WITN Sy. 20 kel ($g. 40 tal)
Pit WC+5658 3.................................................................
MAXIMUM ALLOWED LOADS AT P!PE CChWICf!CW LEYtL A LEYtl 8 (EVIL C/D PIPE FLAWGE PIPC (t3UAt!04 12)
(touATION 13)
(t0VAfl0N 17)
)
$llt PRissUtt SC>tDULE *'***'*** '* '=
*===*='****=***'= = **'***
RAfluG PIPE P!Pt PIPE Maptut 87 tit 1 McMtti STitl5 McMtut tietts 3" PIPE 1508
' 570 8417 8739 16&33 17477 27846 259 i 6" PIPt 1508 570 39847 8552 79694 1't04 132219 21376 s
Se elpt 150s STD 49285 5371 98549 10742 155711 16975 10" Pipt 150s STD 124391 7644 248711 19289 409902 25158 10= PIPt 9008 120 541639 15821 1083278 31642 1375800 40187
<~
J 12" PIPE 150s
$f0 141396 6252' 296792 12503 471639 19569 12" PIPE 9008 120 763542 15467 1537083 26933 iS64769 32675 14" PIPt 1508 sto 215134 7479 430469 14959 691830 24111 A(_/
14" PIPE 6008 100 759392 11490 1518785 22979 2046459 3?963 14" PIPE 900s 120 9584 72 13133 1976944 26266 2449517 32544 16" PIPE 1508 570 325243 8594 650436 17158 1051874 27794 (T
16" PIPE 600s 1 00 1067101 11174 2134201 21349 2821&&6 29550
- )
16" PIPt 900s 120 1275651
?1587 2551302 23175 3007996 27323 18" PIPt 150s
$70 437937 9095 873875 181B9 1412415 29332 18" PIPt 600s 100 1354557 9991 2T09115 19982 3451878 25461
<~()
1S* PIPE 9008 120 1920937 12228 3541871 24456 4642334 29551
..........................................................e..........................................
See notes on neat pote.
<m es kj O
)
9 TABLE C5 MAXIM.Pt MOMthf AhD P!P!bG tittt$ ALLCWED FOR FLAuGts WifM Sy RAfl0 EXCIID!bG Lulff FOR MAftt!AL WlfM Sy. 20 ksi (tu. 40 Ksi)
Pit ac 3658
)
MAXIMJe ALLOWED LOADS AT PIPE CohntCflCel LEVEL A Livil I LEVIL C/D PIPE FLAwat PIPt (touAftou 12)
(touAf!0N 13)
(touAtlow 17)
$12E P e t s sun t S C H E Dut t " * " " * " " * * * " " " " * * * ' * " " " * * * * ' " * ' " " " " " " " ' ' "
}
RAflhG PIPt PlPE PIPE Mcktut sittss Mcentui sitt$$
Mcpt ut statSS 20 PIPE 150s sta 601563 10076 1203125 20152 1949231 32650 20a P!Pt 300s to 1001250 10828 2002500 21656 2669680 28871
)
20a P!Pt 600s 100 1799063 9696 3598125 19392 4585345 24713 20 PIPt 9008 120 2355903 11102 4711806 22203 5502232 25928 24 P!PE 1508
$f0 911632 10537 1823264 21074 2923446 33790 24 PIPE 3008 40 1725333 11050 3450667 22101 4655981 30125 24* PIPE 6008 80 2817375 10774 5634750 21547 7068562 27030 24" PIPE 60C8 100 2817375 8818 5634750 17634 7068562 22123 24" PIPt 900s 120 4579253 12418 9158507 24837 11453125 31C59 3
Notes (1) Alloweele soneets showi soove are ter bending soments or torsionet mmente consicered separately.
(2) Full vetue of 1.9 is used as SIF for ffJ et flange end in calculating piping stress.
Stress value attewed thculd be adjusted if different SIF value is cesired.
(3) Pfd.150 peig f or 150s and 1750 pois for 900s ore assmed in evaluating the ment'un soment allcwed f or level C/0.
)
(4) units: Mosent in inch pouide; stress in pol.
(5) soments ard pipe stresses are per specified toediria ccseinstion in ac 3658 and plant, as follows:
Level A (eq. 12) : VT
- fn (mentous thermal empension) l Level 3 (eq. 13) : WT. Tu + 088
- ether level 8 toede if any, i
Level C/D (eq. 14) : WT + T4 * $$t + ether level C or 0 toeos if any.
ott and $$4 leads may tat caseirmed ty the s@ere root of the sue of swares ($ttl) retmod alth other ecolicebte ernamic toeos f rom levels 8 or C/D conditione.
(6) For Su values between 56 vd 70 tat, multiply the ecovo allowebte.omeets by a f actor l
of Su/le.
[
(7) Use the ettewette loeos per note (1) above to ewelsete the flanges showi with s@ strength.
If su:.nont values are rut evelleele, the pipe stress coluvi allows 3les may be conser*
vettvely used.
l 9
i 3
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