ML19324B269

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Test of Safety-Related Threaded Fasteners from Rancho Seco Nuclear Power Plant, Final Rept
ML19324B269
Person / Time
Site: 05000000, Rancho Seco
Issue date: 02/24/1988
From: Barnes B
EG&G IDAHO, INC., IDAHO NATIONAL ENGINEERING & ENVIRONMENTAL LABORATORY
To: Abbate C
Office of Nuclear Reactor Regulation
Shared Package
ML19324A112 List:
References
CON-FIN-A-6181, FOIA-89-334, FOIA-89-335, FOIA-89-336, FOIA-89-337 BLB-23-88, NUDOCS 8911030026
Download: ML19324B269 (38)
v • d • e


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February 24, 1988 t

Ms. C.'M. Abbate Vendor Inspection Branch Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD. 20852 TRANSMITTAL'0F FINAL REPORT ON TEST OF SAFETY /RELATED THREADED FASTENERS -

l, TASK ORDER 881 (FIN A6181)

BLB-23-88 1

Ref:- (a)

'R. D. Folker 1tr to S. B. Milan', RFD 224-87, Transmittal of Revision 2 of the NRC Form 189 for Technical Assistance for Vendor Program Inspections (FIN A6181), October 19?.7 (b) Task Order 88-1 Project 1, " Test of Safety Related Threaded Fasteners", October 20, 1987

Dear Ms. Abbate:

'In accordance with FIN A6181, Reference (a), EG&G Idaho, Inc. is providing

'I technical assistance to the Nuclear Regulatory Commission, Office of Nuclear i

Reactor Regulation. This assistance involves the evaluation of vendor-related problems with hardware supplied to the nuclear industry.

Task Order 88-1, Reference (b), required technical assistance on testing 18 threaded fasteners from the Rancho Seco Nuclear power,c. plant.

The enclosed report satisfies the work scope requireiaents of Tan Order 86-1 and EG&G Milestone Chart Node 144-46.

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During the course of performing the fastener tests on samples RS-12, RS-13, x

RS-14 RS-IS, RS-16,.and RS-10 in accordance with ASTM specification A-193, 8 [,

M-86, Grade 88, several problems were experienced relating to measurement of

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'J the Rockwell hardness of fasteners.

o ASTM A-193 does not define where on the fastener hardness measurements are to be taken.

It should specify where these measurements are to be taken and list any options on location, e

ASTM A-193 implies that nowhere on.the fastener should the Rockwell hardness exceed Rb 96.

The wrenching flats on the heads of cold-headed Type B8 fasteners are not, and probably should be.

excluded from the defined maximum hardness requirements since hardness vslues exceeding Rb 96 in the vicinity of the wrenching flats are probably desirable.

[EGcG, P.O. Box 1626 Ida'uo falls, 10 83416

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Ms. C. M. Abbate f

V February 24, 1988

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  1. 1 While the problems described above were resolved by subjective jud ements, the dilemma regarding accepting or rejecting fasteners could certaknly yield M.! l widely varying results depending on who and how the test results are NC1 interpreted.

It is also probable that the corresponding ASME material

ts specifications are also deficient, since the ASME usually adopts ASTM N

specifications with few if any changes except to assign a new number.

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.?;h-7 Very truly yours, R

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4 B. L. Barnes, Manager S.

Reactor Inspections & Safeguards jm d'

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H. E. Polk, NRC/NRR J. O. Zane, EG&G Idaho (w/o Encl.)

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TEST 5 OF SAFETY-RELATED THREADED FA$TENER$

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FROM JtAlfCWIS000:6

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INTRODUCTION 2.qq a:

The U.$. Nuclear Regulatory Commission (NRC), Office of Nuclear "l

Regulation, Vendor Inspection Branch submitted 33 cap screws, 4 studs, and 1 nut to EG6G Idaho, Inc., for testing. This assignment was authorized and yg. !

funded by Task Order 86-1, FIN A6181, Project 1.

Previously submitted individual test reports for threaded fasteners are included as an attachment.

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2.

TE$ RING AND ANALYS!$

i In order to determine the acceptance standards for each threaded I

fastener, the identification grade marks on each fastener (Figures 1 through 20) were correlated with the grade marks and related specifications identified in the Industrial Fastener Institute's Fastener Standards. When l

the grade marks were not in accordance with the ASTM identification

  • procedures, or the fastener was not idW fied with a grade mark, the ASTM l

specification that was identified in the NRC shipping document (Table 1),

was used to evaluate the fastener.

The results of this correlation are presented in Table 2.

Not all of the requirements defined in the ASTM Standards were evaluated.

For example, process requirements for the fasteners and the dimensional requirements for the threads were defined but

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not evaluated.

The tests defined in the NRC Task Order were the ttsts that

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i 2.1 Mechanical Tests l

Tensile and hardness tests were conducted in accordance with ASTM Ih,

A-370, Mechanical Testing of Steel Products, or ASTM F606, Method for

,.gi conducting Tests to Determine the Mechanical Properties of Externally and g,l Internally Threa^ ' Fasteners, Washers and Rivets, which are the standards j

l for mechanjcal testing of st6el fasteners.

The specific tests required and W

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a the accept-reject criteria for each fastener weA 'desemined by reviewing-e >i

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the standard app 11 cable to each grade of fastener.

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.c, 2.1.1 Hardness Tests 9d i

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.yu Hardness tests were performed using a standard Rockwell hardness

[l tester. Acceptable hardness machine performance was verified by perfoming

l harciness tests on certified test blocks prior to testing each fastener, A g

total of four hardness tests were performed on each fastener and an average hardness value was then calculated based on the four measurements. The j

results are reported in either Rockwell C or Rockwell 8 scale units, i

2.1.2 Tensile Tests

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9 Tensile tests were accomplished at Detroit Testing Laboratories, Inc.,

in accordance with ASTM A-370 using a 125,000 pound load capacity, j

Tinius-Olsen tensile test machine.

Extensometer load versus deflection t

values were automatically recorded and retained for each tensile test.

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Full-size specimens were tested in accordance with ASTM F-606 and ultimate loads were determined.

Standard one-half-inch round reduced length tensile j

sr.ecimens were machined and tested for fasteners RS-1, RS-2, RS-3, and RS-4 l

and elongations were determined in a 2.00-inch gauge length.

Decreased

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1ength specimens were prepared for those fasteners that were too short for

'{ 1 standard tensile specimens.

Decreased length one-half-inch round reduced section tensile specimens were prepared for fasteners RS-11, RS-12, RS-16 T,

Decreased length three-eighths-inch round reduced si.ction

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RS-19 and RS-20.

l' tensile specimens were prepared for fasteners RS-13 RS-14 and RS-15.

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Percent elongations in one inch were determined for decreased length Yl specimens RS-11 and RS-16.

Percent elongations in one-half inch were i

determined for specimens RS-12, RS-13, RS-14 RS-15, and RS-19.

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2.2 Chemical Analysis 4

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Samples for chemical analysis were machined from each threaded fastener and the analysis was accomplished at National $ptetrographics La.boratories. The specific elements required for product analysis are 2

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,73 defined in the ASTM standard that is specified for.each fastener, and only

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the resu'its obtained for the required elements.are' reported in the

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individual fastener reports. The reproducibility of the chemical analyses

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results reported by National Spectrographic La,boratories were within 155.

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DISCUSSION OF RESULTS t

I A review of the test results revealed the following significant in: [

findings:

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Fasteners RS-1 and RS-4 met the chemical and mechanical r

requirements of ASTM Standard A-193, Grade B-7.

e Fastener RS-2 had a reported elongation value of 15%; whereas, ASTM Standard A-193, Grade 8-7 requires a minimum elongation value cf 165.

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e Fastener RS-3 had a reported ultimate tensile strength of 123.3 Ksi; whereas, ASTM Standard A-193, Grade B-7 required a i

minimum ultimate tensile strength v41ue of 125 Ksi.

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Fasteners RS-5 and RS-6 met the chemical and mechanical requirements of ASTM Standa-d A-449 type 1.

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e Fastener RS-7 met the chemical reautrements of SAE i* l 5tandard J-429. Grace 8.

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Fasteners RS-8, RS-9, and RS-10 met the chemical and mechanical requirements of ASTM Standard A-354, Grade B0. The initial fa carbon analysis of 0.27% for fastener RS-9 was within the

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analysis tolerance of tS% of the Standard's requirement of

%j 0.28%.

The carbon content was reanalyzed and -eported as 0.30%

l which confirms the compliance with the minimum required carbon

,.q,ej content of 0.28% for fastener RS-9.

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Fasteners R$-12 and R$-19 met the' chemical and mechanical 4 ;.

. requirements of ASTM Standard A-193, Grade 88.

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o Fssteners R$-12, R$-13 R$-14 R$-15, and R$-19 were after

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' deliberation judged to meet the minimum evaluated requirements defined in ASTM A-193 M-86, Grade 88. However, fasteners R$-12, R$-13, R$-14, R$-15. R$-16 and RS-20 did not meet the maximum Rockwell hardness of Rb 96 that is specified in ASTM $tandard A-193 M-86, Grade BS. The nonconforming hardness measurements l

were obtained on the wrenching flats of the heads. ASTM A-193 M-86, Grade B8 does not specify where hardness measurments are to be taken. As a second check on hardness of the nonconforming fasteners, the core hardness at the mid radius of a transverse j

section through the threaded area was determined after the tensile tests were completed. These core hardness test results l

were in conformance with the maximum specified Rockwell hardness l

of Rb 96. The dilemma presented by those fasteners having nonconforming wrenching flat head hardness and conforming thread I

area core' hardness was resolved in favor of acceptable hardness by engineering judgement, j

e Fastener RS-11 did not meet the maximum carbon content of 0.08%

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as defined in ASTM A-193 M86, Grade B8.

The initial carbon t

analysis was 0.092% and.the verification analysis was 0.082%.

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Fastener RS-16 did not meet the aaximum carbon content of 0.084 and did not meet the minimum chromium consent;ef 18.00% as defined in ASTM A-193 M86, Grade B8. The initial carbon analysis q;

was 0.091% and the verification analysis was 0.0935.

The initial chromium analysis was 17.7% and the verification analysis was l

l-17.3%.

e Fastener RS-20 did not meet the maximum carbon content of 0.08%

as defined in ASTM A-193 M86, Grade 88.

The*4mitiahnt>pn f

analysis was 0.10% and the verification analysis was 0.099%.

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$lM %RY OF RESULTS

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Fasteners RS-2, R$-3, R$-11, R$-16, and RS-20 did not meet the minimum defined requirements.

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Fasteners RS-1, RS-4, R$-5, RS-6, R$-7, R$-8, R$-9, R$-10, R$-12, R$-13, R$-14 R$-15, and R$-19 met the minimum defined requirements evaluated.

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i TABLE 1.

INFORMATION ON RANCHO SEC0 BOLT-STUD TEST SAMPLES $UBMITTED BY I.i,,.

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NRC($ hipping' Document)

Material Bin

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5tock Code Location

- Grade Mark Class Description

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$ i R$1 042223 A39LO9 SA 193 87

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R$2 042223 A39LO9 JA 193 87 Stud i

R53 042222 A39LO9

' A 193 B7

$tud R$4 042222 A39LD9 A 19) B7 Stud

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R$5 026736 A41F21 449 Cap Screw R$6 026736 A41F21 449 /

Cap Screw l

R$7 110340 G02B06

$AE Gr 8 I/2 Nut R$8 009025 A39J05

' $AE Gr 8' Cap $ crew l

C R$9 009025 A39J05 SAE Gr 8 Cap Screw RS10 009025 A39J05

$AE Gr 6 II Cap Screw R$11 008932 A39G09 104 $$

Cap Screw RS12 103118 A39F08 304 SS I/2 Cap Screw R$13 103103 A39007 304 $$

I/2 Cap Screw R$14 103103 A39007 304 SS I/2 Cap Screw R$15 103103 A39007 30% SS I/2 Cap Screw RS16 008932 A39G09 304 $$

II Cap Screw i

RS17" Warehouse

..b SA 193 B7 Cap Screw l

RS18" Warehouse

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$A 193 B7 Cap Screw l

R$19 008928 304 Cap Screw RS20 103118 304 Cap Screw i

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R$17 and R$18 held until further notice.

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GRS Quarantined, p..

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See note d on Table 2.

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TABLE 2.

HEAD MARKINGS AND REQUIRED ASTM $TANDARDS FOR FASTENER $ $UBNITTED t

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FOR EVALUATION i

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Sample d

Identification Head Markine ASTM Statidard RS-1 B-7C, N1

/A-193 Grade B-7 RS-2 B-7C, N1

/A-193 Grade B-7 RS-3 8-7C, Y$

/A-193 Grade B-7 RS-4 B-7C, Y$

/A 193 Grade B-7 RS-5

-8,815

/A-449 RS-6

-a, BIS

/A-449 d

RS-7 Blue plastic thread locking

,MEJ-429, Grade 8 insert RS-8

-b, CSS

[A-354 Grade BD RS-9

-,b, CSS

/A-354 Grade BD RS-10

-D, CSS

/A-354 Grade 80 RS-11 A-193 Grade B8 RS-12

-c A-193 Grade 88 RS-13 N

A-193 Grade BS RS-14 N

A-193 Grade B8 RS-15 N

A-193 Grade B8 RS-16

-C A-193 Grade BS RS-19 N 304 A-193 Grade B8 RS-20

-C A-193 Grade 88 a.

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T-d.

Where possible, ASTM specifications.were used to evahate all fasteners l

herein even though in many cases SAE, ASME, :.6 other specifications are l

equivalent.

Based upon the head markings, RS-8, RS-9, ar.:1 RS-10 could have been evaluated against either ASTM A-354, Grade BD or against SAE Grade 8.

The former of these was arbitrarily selected. Sample RS-7 was the only exception; this fastener was evaluated against an SAE specification.

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Photomacrograph at 1.5 magnifications of the identification marks on studs RS-1 and RS-2.

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Photomacrograph at 1.5 magnifications of the identification marks i

on studs R$-1 and RS-2.

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fh09WNH)}}}}k)lllhtillllffi If }H O h46!l}})Hi! IIllI84 dlL}})lldlIlll%1dll! '(. s i Figure 4. Photograph of studs RS-3 and RS-4. l 9

-... - - ~. -. - _. -... -. _ - , Mf - ,[ UNhdk O k;.f kk$ f I N w. ty J. 2, ;d. f.1.. s.a d % %1, v /w., ', J., '::)y c e . Vi t o-

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l l r,.,. ,y ..; c ,.) q j I'f;(:r, ej . y, e i r g 4. p , g. 's..,;,,3,q,, .l -( .s - - l}._ i ' /, p .y \\ i} l _1 .. i 'g.$,_ I ' c. :3.p :,.a.,gg -,:,-,+.'. 5 4y,,,,7.)u. ,m y.. j Figure 5. Photomacrographs at 1.2 magnifications of the identification l marks on studs RS-3 and RS-4.

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t. .As s.l - r.h. 3 I Figure 7. Photograph of cap screws RS-5 and RS-6, 1 ll I I l i t l ,.a ? l 2F l t t a c. i y c i i i x d:y, s'j N e 6 .,,. l '+ q q, 7 N-.. U4. 0 9 Figure 8. Photomacrograph at 1,5 magnifications of the identification marks i l on cap screws RS-5 and RS-6, 11

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n.. > '.; > a wm3 , m. g m. < < > em. . :w, a.,., w.s ; < w. l ;. n.;g' p ..x, x x + p..:-

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y q), gg 'y, ,) Tq,,. O, u I li p@; .L. .wa. 1- ~ y' } p ,I. m:4 l 0070gI N i r k# 3 9et* s 'r W r,' h. k.....t % 4 W @..,,.;,,,,,,' i l 1 l Figure 11. Photograph of cap screws RS-8, RS-9, and RS-10, i I I e 4,. rj -l l e jl,( '.l t,, t. Ar? : ~ $.p,,:..,'. v.y;$. + .a-1 m. 3 9.. .1 y~, .v,. s 009025 c 1 y n -.4 Figure 12. Photomacrographs at 1,6 magnificatior.s of the identification marks on cap screws RS-8, RS-9, and RS-10. 13

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bd a o 4 , s u, ' y*? h ?? e. 6? brs M. :7ub.t[. ; cgv== n ; = g e s eE *tv.- % a.'$,3;, ' a'I' '* g.wr F974 39 t..t=.at = [; m -. l l +:9 ; 2n t I l t t I t \\ k l m h s e i Figure 13. Photographs of cap screws RS-11 and RS-16. ) i s C ? I I 1 c i y l t l y

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t e - ec ,s; j 3, c-c .I. ?... Ti. K;; M W M.% W1% m d %c> s '.M sk ~ M l l l , Figure 15. Photographs of cap screws RS-12 and RS-20. i l 1 4a 1! ys - e I . 4.. (ho. l l $ _',j t: 4 nM 103118 Figure 16. Photomacrograph at 1.5 magnifications of cap screws RS-12 and RS-20. 15

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s. n.p o ' Y, .,U:. k:. :, p i,, 3, '"?', e.Yt 't;. r.. / l !) h k i g.l. .03 03 4 ~ Figure 18. Photomacrograph at 1.5 magnifications of cap screws RS-13 RS-14, and RS-15. 16

p + aa u:+s m.?;v l y,.. :, '. n, n. ,-.'}w, }a;a'.,. '. [ "r ; y- '..{+j,3 p 3 5 ig. '94 A.l.*?lt Qg, ~,, p,'{ { ,'] f e, ' ik y ' '*' i W.'i ,' - l ' 'p p. ', y

{,

i i - m[j p ' e,, .3 i?p'r.,y,~@.:e, (,,. ?. (.N i.~ jk i .t j t 1'- m-

  • w

.,em vm .w p r,y y-a rw i ir T T p s,

j

, it sh ri x m. k Of _. syy v.. i. n.i m. ,l 4.) 1 ?}. i . [ r., f t l ] t l Figure 19. Photograph of cap screw RS-39. l il i .i 6 i i I i i t ( r I I i &ly. ~':;la:*': ' 1.... 7{ ~ i f, ;..;.;' t:.f.,,. ' ;., '.*:.. l .s

s..

... s :;). ;. ,. I...' '.. ]..'? .yy i. .;.,.tr ' ,s s .c -. e,, N '.? *..., h' '.j . s. c -. 4 e- . Yr s I b, 91., ,m ( P y u o i Figure 20. Photograph at 1.6 magnifications of cap screw RS-19. 17 +-ee s-w..-.ee,,*-- .--e= --,w-- ___.._-..-..-..-..,.uw_, w.., +m..,,-s,-ww..-...._,,-.--.,....-1,.m.,,--,-,,,,.--,mm._.,,,_,,---,-,m.- .,m,,,

rs,p e. p (... : 4,. _ .4. . h.); m,. i (, .y .o e4 f i' ATTACHMENT (Individual Test Reports for Threaded Fasteners) er ++' ~ 2$f, b

  • {* w.a l
  • 1 7 s :-

1 ..y. 1 l l l' e f

  • e' &_u_____

['j'ig;g ); wpgyl]'g[yjp j'j:fQ }.[?..<ylgWjfF j .,,' { 'R ' W';j / y; y' 3,.: +a ~.

n:

g g. ~Saiiple Identiffcetion: R$-1"j - I.-Q ) NA Source: Ranche Sece

f., ;

'/ $ ample Typer Stud dy; I-Size: 1-1/4 inch dia. x 8 threads /in, a 9-1/2 in. overall length Identification Grade Mark: 87C 4-i ASTM $tandard: A-193 Grade B-7 s @4 i 1 .c 1 t CHEMICAL COMPOSITION (wt$) ..; 4, ~' ASTM Chemical Specifications Actual Chemical Analysis Results Carbon - 0.37 - 0.49 0.40 Chromium - 0.75 - 1.20 1.00 Manganese - 0.65 - 1.10 0.79 Molybdenum - 0.15 - 0.25 0.15 l Silicon - 0.15 - 0.35 0.26 Phosphorus - less than 0.035 0.018 i Sulfur - less than 0.040 0.017 MECHANICAt. PROPERTIES l Minimum ASTM Mechanical Specifications Actual Mechanical Measurements i Ultimate Tensile Strength - 125 Kst 152.6 Ks1 0.2% offset Yield Strength - 105 Ksi 142.3 Ks1 Elongation - 16% 17% Reduction in area - 50% 52% Hardness - not specified Rc 33-34 _Rema rks: Fastener meets the minimum evaluated reoutrements defined in A*,TM.A-d M-R6 Type 1 9' 'M, - I .2 't i a b$ a I l 1'

p(.p,m;.9"copg, [ W,(t,,, ,r' q f, m w : a sw( ?,r.p A 1.',a., s, e, p 3.t ,e 'aA. yy ~.ai,. y,0 h ,y 1 gt Sample !^ntificat15at' 'R$-2 'Y Source: Rancho Sece, Sample Type: Stud...

  • (

5tre: 1-1/4 inch dia. x 8 threads /in. x 9-1/2 in, overall length ~,.. l Identification Grade Mark: 87C C' ( ASTM standard: A-193 Grade B-7 dt l 4l CHEMICAL COMP 05!T10N (wt%) j esTMChemicalSpecifications Actual Chemical Analysis Results I Carbon - 0.37 - 0.49 0.40 Chromium - 0.75 - 1.20 1.00 i Manganese - 0.65 - 1.10 0.77 Molybdenum - 0.15 - 0.25 0.15 Silicon - 0.15 - 0.35 0.24 Phosphorus - less than 0.035 0.018 Sulfur - less than 0.040 0.019 MECHANICAL PROPERTIES i Minimum ASTM Mechanical $pecifications Actual Mechanical Measurements Ultimate Tensile Strength - 125 Ksi 125.3 Ksi i 0.2% Offset Yield strength - 105 Ksi 123.0 Ksi i + Elongation - 16% K18% Reduction in area - 50% 54% Hardness - not specified Re 26-28 Remarks: Fastener does not meet the minimum elongation requirements defined in ASTM - [ A-)S3 H-8 FGrade B-7. + Indicates that results are not within specification limits. p' ]- ca > P

j

) .t em 4

i ' Q %.- [ L=f. j;.]b c;l;>'.q, .y

g 6p

~ i.. Sample Identificat1on: RS-3 .M l Source: Rancho Seco t - 4 Sample Type: $tud dW . ( Site: 1 inch dia. x 8 threads /in. x 7 in, overall length .4 Identification Grade Mark: 87C ry ASTM Standard: A-193 Grade B-7 df h ft, CHEMICALCOMPOSITION(wt%) ASTM Chemical Soecifications Actual Chemical Analysis Results Carbon - 0.37 - 0.49 0.40 Chromium - 0.75 - 1.20 0.86 Manganese - 0.65 - 1.10 0.90 Molybdenum - 0.15 - 0.25 0.20 Silicon - 0.15 - 0.35 0.22 Phosphorus - less than 0.035 0.011 Sulfur - less than 0.040 0.024 MECHANICAL PROPERTIES I Minimum ASTM Mechanical Specifications Actual Mechanical Measurements + Ultimate Tensile Strength - 125 Ksi 123.3 Ks1 l 0.2% offset Yield Strength - 105 Ks1 110.4 Ks1 Elongation - 16% 21% i Reduction in area - 50% 61% Hardness - not specified Re 26-28 Remarks: Fastener does not meet the minimum ulti m te tensile strength require:crt: i l defined in AfTM A-193 H-86 Grade B-7. + Indicates test results not within specification limits. i'$ ..Qj 1 g' ~;.R - I 1 1

( m y" ' .,:n j ;. n e : c; c, r ' i, s.: 7. 's t .5 e 4

-" ' *,' E

..., 7p l,. c ce;r Sample Identification: 45-4 j Source: Rancho Seco x l Sample Type: Stud t,. ! Size: l' inch dia. x 8 threads /in. x 7 in, overall fength Identification Grade Mark: B7C Q'? ' ASTM $tandard: A-193 Grade B-7 f; W! CHEMICAL COMPOSITION (wt5) . yi ~ ASTM Chemical Specifications Actual Chemical Analysis Results Carbon - 0.37 - 0.49 0.40 l Chromium - 0.75 - 1.20 0.84 i Manganese - 0.65 - 1.10 0.93 l Molybdenum - 0.15 - 0.25 0.20 Silicon - 0.15 - 0.35 0.22 Phosphorus - less than 0.35 0.011 Sulfur - less than 0.040 0.023 MECHANICAL PROPERTIES i Minimum ASTM Mechanical Specifications Actual Mechanical Measurements l Ultimate Tensile Strength - 125 Ksi 126.8 Ksi 0.2% offset Yield Strength - 105 Ksi 114.2 Ksi Elongation - 16% 22% Reduction in area - 50% 61% Hardness - not specified Rc 27-28 I l . Remarks: Fastener meets the rinimo, evalerted requirements defined ir ASTM A 193 P?' Grade B7. 9:4p v.h li s l l .N i F I i %b" I

w N ;t-a . "s e + ;, b.; -, ;qh: Fyp, ~ - } Q:

  • L

.h.,. 's

k in Saeple Identification: R$-5

/ W Source: Rancho Seco Cap Screw ,s 5/8 inch dia x 11 threads /in. x 2-11/16 in, shank length /*ds. Sample Type: I Size: identification Grade Mark: i ASTM Standard: A-449 Type 1 CHEMICALCOMPOSITION(wt%) Actual Chemical Analysis Results ASTM Chemical $pecifications 0.38 0.25 - 0.58 0.76 Carbon Manganese - not less than 0.57 0.010 Phosphorus - not more than 0.048 0.012 Sulfur - not more than 0.058 less than 0.0005 Boron - not controlled MECHANICAL PROPERTIES Actual Mechanical Measurertents Minimum ASTM Mechanical $pecifications 32,300 lbs Ultimate Tensile Load - 27,100 lbs Acceptable Proof load - 19,200 lbs Rc 23-26 Maximum Rockwell Hardness - Rc 34 Remarks: Fastener meets the minimum evaluated requirements defined in ASTM A-449 Type 1. ' '~5, g -. '.t,\\1 .~

%.v: f 'W, l' W L M..; Q f..;@fl ' f".., * * . an, ] 5 W ' ;G D r 27,......v o. s,.. . g, ,,,.,q 3 .g

. n,

.. Q,q '; 2 u x. yl .$ ample Identification: R$-6 c.g.gi Source: Rancho seco $ ample Type: Cap Screw ,,,t, ~ I Size: 5/8 inch dia. x 11 threads /in. x 2-11/16 in, shank length Identification Grade Mark: dl ASTM Standard: A-449 Type 1 l CHEMICAL COMPOSITION (wt%) ASTM Chemical Specifications Actual Chemical Analysis Results Carbon - 0.25 - 0.58 0.38 Manganese - not less than 0.57 0.75 j Phosphorus - not more than 0.048 0.008 i Sulfur - not more than 0.058 0.012 j Boron - not controlled less than 0.0005 MECHANICAL PROPERTIES l i Minimum ASTM Mechanical Specifications Actual Mechanical Measurements j Ultimate Tensile Load - 27,100 lbs 31,600 lbs Proof Load - 19,200 lbs Acceptable Maximum Rockwell Hardness - Re 34 Rc 23-27 Remarks: Fastener meets the minimum evaluated requirements defined in ASTM A-449-86 Type 1. ) 1 1 s i _v 'I 6

kg /.~. [ ; ? d,Q ;.. > : l. ', ~~ Q ' Dl ' ; ' ' ' ' '. \\^ 5' l .? m .s l, ... o- , - ;q $a'mple Identification:. RS-7 4Q.y !i. Source: Rancho Seco 't Sample Type: Nut, self locking l Size: 1-1/2 inch dia. x 12 threads /in. Identification Grade Mark: Blue nylon insert ($eeTable2) SAE Standard: SAE J-429 Grade 4 i p CHEMICALCOMPOSITION(wt$) l ASTM Chemical Specifications Actual Chemical Analysis Results Carbon 0.28 - 0.55 0.44 Phosphorus less than 0.070 0.025 Sulfur less than 0.045 0.020 Boron not conteo11ed less than 0.0005 MECHANICA.L PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements Hardness not specified Rb 97-100 t Remarks: Fastener meets the minimum evaluated requirements defined in SAE J-429 Aug. l. 83 Grade 8. l l 1 -) l I 93 Mry l

{ t,. cos; 13 Of Sample Identification: R$-8 as Source: Rancho Seco l'Af ,t g sample Type: Cap Screw 'i-t Size 5/4 inch dia. x 11 threads /in. x 1 in, shank length identification Grade Mark: s. ASTM $tandard: A-354 Grade 80 ..n CHEMICALCOMPOSITION(wtt) ASTM Chemical Specifications Actual Chemical Analysis Results Carbon 0.28 - 0.55 0.28 Phosphorus less than 0.040 0.010 Sulfur less than 0.045 0.005 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements Ultimate Tensile Load - 33,900 lbs 36,100 lbs Proof Load - 27.100 lbs Acceptable Hardness Rockvie11 - Rc 26-36 Rc 34-35 Remarks: Fastener meets the minimum evaluated requirements defined in ASTM A-354 Grade BD. N s 9 i

../..

y u s.y J

'p]< ? q". t U.'" p ~ ..., e.. , p,. .w. m ..o ; h;,'l'l ; hl2 - .,~. 'c, ' * ' T l f, ' N Y j+ 0

% b q,..

.7 q,.- .e {.[j.. ,[ s Sample Identification: RS-9 Source: Rancho Seco i (- Sample Type: Cap Screw i' Size: 5/4 inch dia, x 11 threads /in x 1 in, shank length . Aq. I Identification Grade Mark: 4.y ' ASTM Standard: A-354 Grade BD 6; Mt 4 i CHEMICAL COMPO$1 TION (wt%) ASTM Chemical Specifications Actual Chemical Analysis Results Carbon 0.28 - 0.55 0.27 and 0.30* Phosphorus less than 0.040 0.010 i Sulfur less than 0.045 0.024 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements Ultimate Tensile Load - 33,900 lbs 36,100 lbs Proof Load - 27.100 lbs Acceptable Hardness - Rockwell C 26-36 Re 33-36 Remarks: Fastener meets the minimum evaluated requirements defined in ASTM A-3E4 l Grade BD. i " Carbon verification analysis was 0.30%. g,[ pg > k d '. ?.N l 4. r. ( 1. 1 l l l l l

I , ' "I '4' h l ,,.,.g -J k [) e. g, L ,4 { ,.-, a x,

3.,

f ,7. ps,t' ~ 3,; l c v ~ c ..g [1, 'y, : 1 Sample Identification: RS-10 lj e $ource: Rancho Seco 1l ( Sample Type: Cap Screw Size: 5/8 inch dia, x 11 threads /in. x 1 in, shank length Identification Grade Mark: i . ;g ASTM Standard: A-354 Grade BD CHEMICALCOMPOSITION(wt%) ( ASTM Chemical Specifications Actual Chemical Analysis Results I Carbon - 0.28 - 0.55 0.28 Phosphorus less than 0.040 0.012 Sulfur less than 0.045 0.024 MECHANICAL PROPERTIES f-! Minimum ASTM Mechanical Specifications Actual Mechanical Measurements Ultimate Tensile Load - 33,900 lbs 37,400 lbs Proof Load - 27,100 lbs Acceptable Hardness - Rockwell C 26-36 Rc 33-35 Remarks: Fastener meets the minimum evaluated requirements defined in ASTM A-354 f Grade BD. j i W [ 1 L l t + ; t a::, r a 4 l r y-r e- -e r--

kE O' l' ' h L'S

  • S A ' ? N '

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c.. ;

v.

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,m, t 6 . Sample Identification: RS-11 'l i i* . Source:. Rancho Seco q* :, L) y, Sample Type: Cap. Screw Size: 3/4 inch dia. x 10 threads /in. x 2-1/2 in shank length !2 s i Identification Grade Mark: 88 4 'E j ASTM Standard: A-193 Grade B-8 7 CHEMICALCOMPOSITION(wt%) ASTM Chemical Specifications Actual Chemical Analysis Results f t +tWbon V fisPthafo.04 de:09274WOMYM Chromium - 18.00 - 20.00 18.3 Nickel - 8.00 - 10.50 8.42 Manganese - less than 2.00 1.15 Phosphorus - less than 0.045 0.027 Silicon - less'than 1.00 0.61 Sulfur - less'than 0.030 0.009 MECHANICAL PROPERTIES. Minimum ASTM Mechanical Specifications Actual Mechanical Measurements F Ultimate Tensile Strength - 75 Ksi 103.5 Ksi O.2% Offset Yield Strength - 30 Ksi 76.1 Ksi Elongation - 30% 51%

  • Reduction in area - 50%

70% Maximum Rockwell Hardness -/Rb 96 Re 38-39 and Ab 93e95'** 4-Remarks: Fastener does not meet the chemical requirements defined in ASTM A-193 M-86 b Grade B8. + Indicates test results not within specification limits.

  • Elon0ation in 1.0 inch.

jg.

    • Internal hardness at the mid radius of a transverse section through the

.gp threaded section was determined to be Rb 93-95. ll

      • Carbon verification analysis was 0.082.

1 ( f, m ,e --qe w n -~-e. .-w e

I4 6 z.,.. f,,, Mp 3,~y%ly b. ';.'f p, ':E 4 f f f j ' i j; Q n'$ 4; ($l[g ~ 3 e.h.a. y;.; y , w:.. ,.,g; L,3. ~ . y,s.,(. ~ ( , (, c .a g L. A 'E $ ample Identification: RS-12 n Source: Rancho Seco 4 lc-

(

-Sample Type: Cap Screw Size: 3/4 inch dia. x 10 threads /in x 1-3/4 in, shank le;,)gth .A $# i Identification Grade Mark: (SeeTable2), ASTM Standard: A-193 Grade B-8 .nll t q r'. CHEMICAt. COMPOSITION (wt%) j ASTM Chemical Specifications Actual Chemical Analysis Results Carbon .less than'0.08 0.063 l Chromium - 18.00 - 20.00 18.47 Nickel - 8.00 10.50 8.86 i Manganese - less than 2.00 1.56 Phosphorus - less than 0.045 0.030 Silicon - less than 1.00 0.68 Sulfur - less than 0.030 0.012 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements l' 1 l Ultimate Tensile Strength - 75 Ksi 95.8 Ks1 L 0.2% Offset Yield Strength - 30 Ksi - 63.7 Ks1 Elongation - 30% 92%

  • Reduction in area - 50%

75% Maximum Rockwell Hardness - Rb 96 Rb 87-91 s l Remarks: ' ~ 1: fastener meets the minimum evaluated requirements defined in ASiel A-193 -.. i M-86 Grade B-8. f.I Wi

  • Elongation in 0.5 inch.

W .A( x f*g g s..- DN; kNi .m.. 1 I i e ,,--a-wr,,,, - + ,w c-- s-w.- =>

Ih , Te%[ Ms. " 'k. hbN'$I ffh b f,; , ll ~ 'a .g. " ', s, q pqjg j~ 4 $j e q{.y

s Sample Identification
RS-13.

s. Source: Rancho Seco e N ' (' Sample Type: Cap Screw Size: 1/2 inch dia 'x 13 threads /in x 1-3/4 in, shank length y j. Identification Grade Mark: N (See Table 2) L. ASIN Standard:. A-193 Grade B-8 L L CHEMICAL COMPOSITION (wt%) i ASTM Chemical'$pecifications Actual Chemical Analysis Results V Carbon - less than 0.08 0.060 Chromium - 18.00 - 20.00 18.67 Nickel - 8.00 - 10.50 8.01 Manganese - less than 2.00 0.98 Phosphorus - less than 0.045 0.028 i Silicon - less than 1.00 0.90 Sulfur - less than 0.030 0.026 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements l s 4 Ultimate Tensile Strength - 75 Ks1 110.4 Ks1 0.2% Offset Yield Strength - 30 Ks1 69.6 Ksi Elongation - 30% 84%

  • l Reduction in area - 50%

76% I Maximum Rockwell Hardness - Rb 96 Rc 27-28 and Rb 93-94 " Remarks: Fastener meeti-the m)ntmumsevaluated requirements defined in ASTM A-193 MSG Grade B8. m u.e

  • Elongation in 0.5 inch.

w s:.

    • Internal hardness at the mid radius of a transverse section through the i

threaded area was determined to be Rb 93-94. M' } i g l '. h

$ [,((, N ' bb. bb [ %, x h h f x + s, + r Sample Identif1 cation:' R$~14 Source: Rancho Seco

  • (

3 Sample Type: Cap Screw Size: 1/2 inch dia. x 13 threads /in. x 1-3/4 in, shank length b, j. Identification Grade Mark: N (See Table 2) 4 (i i ' ASTM Standard: A-193 Grade B-8 '.u 4

?;

CHEMICALCOMPOSITION(wt%) )l, ASTM Chemical' Specifications Actual Chemical Analysis Results Carbon .less than 0.08 0.064 Chromium - 18.00 - 20.00 18.76 Nickel - 8.00 - 10.50 8.10 Manganese - less than 2.00 0.96 Phosphorus .less than 0.045 0.029 Silicon - less than 1.00 0.84 Sulfur - less than 0.030 0.026 MECHANICAL PROPERTIES Minimum ASTM Mechanica,1 Specifications Actual Mechanien1 Heasurements i Ultimate Tensile Strength - 75 s1 119.6 Ksi 0.2% Offset Yield Strength - 30 Ksi 80.4 Ksi [ Elongation - 30$ 68%

  • Reduction in area - 50%

70% Maximum Rockwell Hardness - Rb 96 Rc 26-27 and Rb 92-95" Rg Remarks: ...s gh Fastener meets the ininimum evaluated requirement cef.ined in ASTM B-193 M-85 jl> Grade B8. M dhi

  • Elongation in 1/2 inch.

I L " Internal hardness at the mid radius of a transverse section through the A l threaded area was determined to be Rb 92-95. 9 ( q .x l l. 1 1 4 ,.n n.. r

.,-a-

--r

h f f{ f l} $ $ $f f k f b ?.' $ (,$ h hfN~ ~?bh s g;e. 3 e z o.m 'y g, m a;g +a.< e i.- ) 1: z,

  • [

~$ ample. Identification: RS-15 's f Source: Rancho Seco1

  1. l j x.

7 Sample Type: Cap Screw 'l Size: 1/2. inch dia. x 13' threads /in. x 1-3/4 in, shank length N .dif L Identification Grade Mark: N ($eo Table 2) ~. ASTM Standard: A-193 Grade 8-8 /d i ~ G CHEMICALCOMPOSITION(wt%) .g ASTM Chemical Specifications Actual Chemical Analysis Results Carbon - less than 0.08 0.061 Chromium - 18.00 - 20.00 18.71' Nickel.- 8.00 - 10.50 8.02 Manganese - less than 2.00-0.97 Phosphorus - less than 0.045 0.025 Silicon - less than 1.00 0.75' Sulfur - less than 0.030 0.025 r MECHANICAL PROPER' LIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements 1 I Ultimate Tensile Strength - 75 Ks1 117.5 Ks1 1 0.2% Offset Yik1d Strength - 30 Ks1 80.4 Ks1 L -Elongation - 30% 72%

  • i Reduction in Area - 50%

70% L Maximum Rockwell Hardness - Rb 96 Re 29-30 and Rb 90-94" l l ..,k. j Remarks: ' #j p Fastener meets the minimum evaluzted requirement der 4.ed in ASTM A-193 MS6 e ~ Grade 88 a L.% - s.

  • Elongation in 0.5 inch.

g i " Internal hardness at the mid radius of a transverse section through the ,,fjt threaded area was RB 90-94. t- -Qjk .x e r .m, .e- .,. - -..++

l M uMa 1 N $u m n &s W 4.,M U :r!M, x % 5; p[ WW h.y.ne :qf.@ $M;mn f idi a %w,r'b... y,YW ' 9ff'I L w >v J y . s.x [ h ,k f l ., f " [ j

'[',

,c,A e 'I; ; - 1 s 2 Sample Identification: RS-16 ete S Source: Rancho Seco ' Sample ~ Type: ; Cap Screw U 'gj l-4 'n. Size: 3/4 inch dia. x 10 threads /in. x 2-1/2 in, shank length M.p s. l1 Zdentification Grade Merk: (SeeTable2) 1 l ASTM Standard: A193 Grade B-8

)

] . myf 1' ? CHEMICAL. COMPOSITION (wt%) i I ASTM Chemical Specifications Actual Chemical Analysis Results I i W:C&%D MidssTth'a~ti 0.08 4:091

  1. Chroteide ;~418.00 420:00 reE7it N pMib Nickel - 8.00 - 10.50 9.35 L

Manganese - less than 2.00 1.23 Phosphorus - less than 0.045 0.026 Silicon - less than 1.00 0.44 l-Sulfur - less than 0.030 Molybdenum 0.41 l-MECHANICAL PROPERTIES 1 ' Minimum ASTM Mechanical Specifications Actual Mechanical Measurements j . Ultimate Tensile Strength - 75 Ksi 93.9 Ksi 0.2% offset Yield Strength - 30 Ksi 74.4 Ksi j l Elongation - 30% 51%

  • 1 Reduction in area - 50%

71% l ~ + Maximum Rockwell Hardness - Rb 96 Rc 35-36 Rb 90-91 **** 1 1 A.f. ) Remarks: fa'itener.does not a.eet the chemical': requirements as defined in ASTM' A-193 ' My M-86 Grade B8. W 1- + Indicates the test results not within specification limits. ./ gh 1

  • Elongation in 1.0 inch.

r.I W)i l l-

    • Carbon verification analysis was 0.093%.

whigL, l

      • Chromium verification analysis was 17.32%.

...d ) em:

        • Internal hardness at the mid radius of a transverse section through the threaded area was Rb 90-91.

-l:Q EjQ3% ffb ff: 4;.;j g;y'$($pd [f N,7 p4L<"A%[j)l%,f'%jx w d., - p tyr

,..
n,,

.p..g y.. y s ,S .< ? .np, y y ., sy s. .e 3 ample. Identification: RS-19 1.< ' Source: Rancho Seco, I. . Sample Type: Cap $ crew

  • OL.

s ',- U Size: 3/4 inch dia. x 10 threads /in. x 1-3/4 in. shank length i;p' - Identification Grade Mark: N 304 (See Table 2) W ASTM Standard: A-193 Grade B-8 .d. n CHEMICALCOMPOSITION(wt%) ASTM Chemical Specifications Actual Chemical Analysis Results Carbon - less than 0.08 0.062 Chromium - 18.00 - 20.00 18.55 Nickel - 8.00 - 10.50 8.27 Manganese - less than 2.00 1.27 Phosphorus - less than 0.045 0.015 i Silicon - less than 1.00 0.55 l Sulfur - less than 0.030 0.020 j MECHANICAL PROPERTIES l Minimum ASTM Mechanical Specifications-Actual Mechanical Measurements 1' 1 l Ultimate Tensile Strength - 75 Ks1 97.5 Ksi L 0.2% Offset Yield Strength - 30 Ksi 48,1 Ksi l Elongation - 30% 98%

  • Reduction in area - 50%

74% Maximum Rockwell Hardness - Rb 96 Rb 91-92 z'g ; l L Remarks: ) ) T l l Fasteno-meets the minimum evaluated requirementr, defined in AST!4 A-193 h y M-86 Grt.de 88. y i

  • Elongation in 1.0 inch.

.W l ?j-I jfh ' ti f*

I$h[5h[NM[kEjf k N .,we - M$NQ(lM kg i '- [ p. g, 3 e i '. Sample Identificaticn: R$-20 a Source: Rancho-Seco &[ - Sampid Type: Cap Screw ,.<\\! Size: 3/4 inch dia. x 10 threads /in. x 1-7/16 in. shank length M l 'e Identification Grade Mark: (See Table 2) ~ ASTM Standard:. A-193 Grade B-8 k ~, 1- ]ij CHEMICALCOMPOSITION(vt%) 7[lf s ASTM Chemical Specifications Actual Chemical Analysis Results t,.- tytatha Filesf%hifEW dEMD55n(lD;099W Chromium - 18.00 - 20.00 18.15 Nickel - 8.00 - 10.50 8.65 Manganese - less than 2.00 1.22 Phosphorus - less than 0.045 0.023 Silicon'- less than 1.00 0.57 Sulfur - less than 0.030 0.012 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements 1 y Ultimate Tensile Strength - 75 Ksi 99.4 Ksi

  • 0.2% Offset Yield Strength - 30 Ksi 83.9 Ksi l

Elongation - 30% + Reduction in area -'50% Maximum Rockwell Hardness - Rb 96 Rc 39 and Rb 90-97 *" 4.4 ., a Remarks: p L Jastener does not meet the minimum carbon requirements defined in ASTM 'i l A-193 H-8 FGrade 88. + Indicates the test results were not within specification limits.

  • 1ndicates maximum load, test was terminated before fracture.

D}

    • Not determined, test was terminated before fracture.

t.jf

      • Internal hardness at the mid radius of a transverse section through the

$ff threaded section was Rb 90-97.

.p.-

4

        • Carbon content was initially reported by National Spectrographic Laboratories as 0.18% which was a typographical error.

The carbon content should have been reported as 0.10%. The carbon verification analysis was O.099%. 2:: (- +}}

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