ML19324B263

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Test of Safety-Related Bolts,Studs & Nuts from San Onofre & Rancho Seco Nuclear Power Plants, Final Rept
ML19324B263
Person / Time
Site: San Onofre, Rancho Seco, 05000000
Issue date: 07/31/1987
From: Barnes B
EG&G IDAHO, INC., IDAHO NATIONAL ENGINEERING & ENVIRONMENTAL LABORATORY
To: Merschoff E
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-55-87, NUDOCS 8911030016
Download: ML19324B263 (27)
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Mr. Ellis W. Merschoff, Acting Chief i*

Vendor Inspection Branch Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 4340 East West Highway

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TRANSMITTAL OF FINAL MATERIALS TECHNOLOGY LAB REPORT TESTS OF SAFETY-RELATED N A6

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L Ref:

(a)

G. E. Marx ltr to S. B. Milam, Marx-16-85, " Transmittal of NRC from 189 for Technical Assistance for Vendor Program Inspection" (FIN A6181) January 14, 1985 i

(b) Task Order 870, Rev.1, Project 1

" Test Safety-Related Bolts i

and Nuts from San Onofre and Rancho Seco," June 24, 1987

Dear Mr. Merschoff:

In accordance with FIN A6181, Reference (a), EG&G Idaho, Inc. is providing technical assistance to the Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation (NRR). This assistance involves the evaluation of vendor-related problems with valves, pumps, relays and fuel casks. Task i

Order 870, Rev. 1, Reference (b), required EG&G Idaho, Inc. to verify j

mechanical and chemical tests and perform additional tests on 14 bolts and i

studs and 3 nuts used in safety-related applications at the San Onofre and s.w l Rancho Seco Nuclear Plants.

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ne o'wlodeo mater wr. sechnutogy Lab Keport cor>pletes tne wcrk scope i

requirements of Task Order 870. Rev. 1.

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Very truly yours, M"2 c..

8 11030016 091030 B. L. Barnes, Manager k$RA

-334 PDR Reactor Inspections Unit 49 jm

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Enclosure:

As Stated cc:

C. M. Abbate, NRC-NRR D. J. Corley, NRC-NRR J. C. Harper, NRC-NRR G. L. Jones, DOE-ID H. E. Polk, NRC-NRR J. O Zane, EG&G Idaho (w/o Enclosure) h EBsG........

P.O. sox 1625 Idaho faits, to 83415 A?/.B

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TESTS OF SAFETY-RELATED B0LTS, STUDS AND NUTS

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hl FROM SAN ONOFRE AND RANCHO SEC0 NUCLEAR POWER PLANTS

'l 1.

Introduction. The U.S. Nuclear Regulatory Commission, Office of Nuclear

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Regulation, Vendor Inspection Branch submitted 424elte;*14tetered=4 i

nuts used in safety-related applications to EG6G Idaho, Inc. for testing, fasteners serial numbers $0-1 through $0-6 were % tained dese

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Rancho Seco Nuclear Power Plant and fasteners ser.ial numb Es* $6-7 through 50-17 were obtained from San Onofre' Nuclear Power Plant. This'

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assignment was authorized and funded by Task Order 870, Rev. 1, FIN A6181, Project 1.

i 2.

Testino.

In order to determine the acceptance standards for each stud, nut, and bolt, the identification grade marks on each fastener were correlated with the grade marks and related specifications identified in the Industrial Fastener Institute's Fastener Standard. The results of 3

this correlation are presented in Table 1.

Not all of the requirements defined in the ASTN Standards were evaluated. For example, process requirements for the fasteners and dimensional requirements for the threhds are defined but were not evaluated. The tests defined in the NRC Task Order were the tests that were accomplished.

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2.1 Mechanical Testino. Tensile and hardness tests were conducted,in l

accordance with ASTM A-370, Mechanical Testing of Steel Products, which is the standard for mechanical testing of steel fasteners. The specific

,_ i tests required for each fastener were determined by reviewing the Str f standard applicable to each grade of fastener.

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2.1.1 Hardness Tests. Hardness tests were performed using a standard Rockwell hardness tester. Acceptable hardness machine I

i performance was verified by performing hardness tests on certified l

test blocks prior to testing each fastener. A total of four s

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,i hardness tests were performed on each fastener and an average hardness value was then calculated based on the four measurements and reported in either Rockwell C or Rockwell B scale units.

2.1.2 Tensile Tests. Tensile tests were accomplished using a 100,000 pound load capacity, Instron Model 1128, tensile test machine having a load weighing accur:cy of 10.5% of indicated I

load.

Load versus deflection values were aut'omatically recorded and retained for each tensile test, i

Full-size specimens were tested to determine the ultimate loads for j

all bolts and studs except bolts 50 9, 50-16 and 50 17. Crosshead travel and loads were automatien11y recorded for all full-size specimens, i

The ultimate loads that were determined for full size bolts 50-3 and $0-5 were questionable since considerable yielding and shearing in the bolt threads occurred during the test. After testing,

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inspection of the bolt bodies revealed the diameters were unchanged i

after testing, which indicates the ultimate loads in the threaded l'-

section occurred prior to yielding of the material in the bolt bodies.

Because the initial test results were questionable standard 0.25 inch round tensile specimens were machined from each e

I bolt body (50-3 anC S0-S) wh1'cn were then tensile tested using c.

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1.0-inch extensometer to determine the 0.2% offset yield strength.

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these tests have coinpared with the breaking loads obtained during i

t the full-size specimens which confirmed that the original loads

,l were less than 0.2% offset yield strength in the bolt bodies and i

the results for the machined specimens were valid. The results for the machined specimens from the body of bolts $0-3 and $0-5 are reported in the individual test reports. The initial results, for

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the full size tensile test, which were questionable, are not reported.

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' Ultimate loads for fasteners 50-7, 50-8, 50-10, S0-12, and 50-14 were determined using full size specimens. The maximum loads that 1

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wers obtained during testing of these belts were converted and reported as ultimate tensile values in pounds per square inch. The g3 0.2% offset yield strengths were determined from the load-strain l

diagrams that used crosshead travel for the strain measurements.

'l Since the ultimate tensile strengths and 0.2% yield strengths that l

were determined for these fasterners met the minimum defined l

requirements, machined specimens were not made or tested for these

l fasteners.

l Standard 0.50 inch round tensile specinens were nachined and tested for bolts $0-9, 50-16, and $0-17 and stanc'ard 2.0-inch extensometers were used to determine the 0.2% offset yield strength for the specimens.

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Meta 11ographic Examination. Meta 11ographic specimens were prepared for bolts 50-3 and $0-5. Longitudinal and transverse sections were taken from each bolt body. These sections were mounted, polished, etched with

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a nital solution (5% HNO3 and 95% methyl alchohol), and examined at

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100 and 400 magnifications (Figures 1 and 2) for bolt 50-3. A ferritic l

structure was observed, and an ASTM grain size of 8 to 8.5 was f

determined. This grain size is normal for a bolt of this size made from i

AISI 1008 or 2010 mild steel, i

4.

Chemical Analysis.

Samples for chemical,analypis we.re obtained "rm.

each stud, nut and bolt. Weighted portions of the samples l

(approximately 0.5 g) were submitted for chamical analysis. The samples l;

were analyzed for carbon, chromium, copper, manganese, molybdenum, ai t

nickel, silicon, sulfur, phosphorus and vanadium.

Samples were analyzed l

by EG6G Idaho, Inc. and the Ford Chemical Co., Salt Laxe City. For

'N samples having inconsistent or inconclusive results, repeat analyses were conducted by independent laboratories for verification. The verification analyses were done by WINC0 (Westinghouse Idaho Nuclear Co., Inc.) and National Spectrographics Laboratories, Cleveland, Ohio.

During the verification analysis, boron amounts were also determined for Bolts S0-1, 50-2, $0-4, and 50-6.

The standards for these bolts (ASTM 3

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A-325 and A-449) allow two types of holts; Type 1 without a minimum allowable boron content, and a Type 2 that requires a specified minimum I

of 0.0005% boron.

The specific elements required for product analysis are defined in the ASTM standard that is specified for each fastener, and only the results obtained for the required elements are reported in the individual fastener reports.

5.

Certification of AcLuracy of Chemical Test Results. Appropriate quality assurance and quality control (QA/QC) measures were to be taken and reported by all contracted laboratories. The reproducibility for EG&G.

Ford and National Spectrographic were reported to be within 15%. For the WINCO analysis, duplicate samples of NBS standard 72E were submitted along with the bolt samples which provided comparative results. The Ford results that were suspected to be in error were recorded and noted in the individual test reports as being acceptable for engineering information only.

6.

Discussion of Results. A review of the test results revealed the following significant findings:

o Bolts $0-1 and 50-2 meet the chemical and mechanical reautrements of ASTN A-325 Type 1, the required standard. However, that boltr y

,.3 contained 0.0041% boron, which also qualifies them as Type 2 bolts. The minimum boron content for Type 2 bolts is 0.0005%.

ASTM A-325 does not define a maximum amount of boron for either the Type 1 or Type 2 bolts, and the standard does not specifically prohibit the intentional addition of boron to a Type 1 bolt. The ident.ification marks on the bolts indicate they were produced by UnyH te fastener Manufacturing Company, Ltd, a Japanese manufacturer. Since bolts $0-1 and 50-2 are marked as Type 1 bolts, are apparently manufactured in a foreign country, and contain appreciable amounts of boron they may be considered in the same class as the cnntroversial SAE J429 fasteners that have been discussed in the national news media.

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Bolts 50 3 and 50-5 do not meet the chemical or mechanical o

requirements specified in ASTM A-193 Grade B-7, the required standard for these bolts. The identification marks (Figure 3) on f[

these bolts indicate they were produced by Clark Brothers Solt Company, a U.S. manufacturer. The bolts should have been made from an alloy steel containing chromium and molybdenum, such as AISI 4140, or 4145 steel. The bolts were probably made from AISI 1008 or 1010 steel. These bolts are not suitable for either high temperature or high strength, which is the intended applications defined in the ASTM Standard, Stainless steel bolts 50-12 and 50-14 met the mechanical o

requirements but did not meet the chemical requirements specified in ASTM A-193 Grade B 8M, and nuts $0-13 and 50-15 did not meet the chemical requirements specified in ASTM A-194 Grade 8, the required standards. Mechanical requirements are not specified for nuts, The identification marks on these bolts and nuts (Figure 4) indicate they were produced by Highland Nut and Bolt Company, a U.S. manufacturer.

Since the analyses for bolts 50-12 and 50-14, and nuts $0-13 and 50-15 indicated a molybdenum content greater than 2.0%, the material was probably intended for AISI Type 316 stainless steel nuts made to the requirements of ASTM A-194.

Apparently both the stainless steal bolts and the stainless steel nuts were made from the same heat of material. The nickel and chromium requirements for ASTM A-193 and A-194 are:

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Chromium Nickel

,TZPt AIS1 Number ASTM Standard

(%)

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Bolt Type 304 ASTM A-193 Grade 88 18.00-20.00 8.00-10.50 Type 316 ASTM A-193 Grade B8M 16.00-18.00 10.00-14.00 Nut Type 304 ASTM A 194 Grade 8 18.00 20.00 8.00-10.50 Type 316 ASTM A-194 Grade SM 17.00-19.00 9.00-13.00 Since the nickel content is less than 10% the material does not meet the recuirements, for a Type 316 bolt. Since the chromium content is lass than 18%, the material does not meet the requirements for either a Type 304 nut or bolt. Only the chemical 5

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requirements for a Type 316 nut would be met, and Type 316 nuts were not one of the types t.f stainless steel fasterners that were j

submitted for evaluation.

The results of the limited evaluatiers of safety related fasteners provided, indicate that the basic specification requirements of fasteners 50 3, 50-5, 50-12, 50-13, $0-14, and 50-15 were not met.

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TABLE 1.

GRADE MARKS AND REQUIRED ASTM STANDARDS FOR FASTENERS SUBMITTED FOR EVALUATION Sample Identification Grade Mark

_ASTN Standard

!-325 Type 1 f$01 A-325

$0-2 A-325

-325 Type 1 I S0-3 B7 A-193GradeB7/

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fA-193GradeB-7j

$0-5 B7

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, 50-6 A 449 Type 1 /

/ -193 Grade B-7 e $0-7 B7 A

/ -193 Grade B-7

$0-8 B7 A

50-9 B7

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S0-10 BBM

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S0-11 8

A-194 Grade 8 i

S0-12 B8M

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50-14 B8M

/ A-193 Grade BAM f S0-15 8

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$0-16 B7

/A-193 Grade B-7 L. 50-17 B7 A-193 Grade B-7 t

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Figure 1.

Photomicrograph at 100 magnifications of bolt 50-3 showing an ASTM grain size of 8 to 8.5.

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Photomicrograph at 400 magnifications of bolt 50-3 showing a normal ferritic structure.

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Photomacrograph of identification mark on bolt 50-3 indicating the producer was Clark Brothers Bolt Company.

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. (Qg4j. ; o-y }; d c' Sampla Identification: 50-1 ~ Source: Rancho Seco en Sample Type: Bolt i1 Size: 2 7/8 x 3/4 Identification Grade Mark: A-325 JJ ASTM Standard: A-325 Type I CHEMICAL COMPOSITION (wt%) National Spectrographic ASTM Chemical Soecifications EG&G Idaho Ford Chemical Co. Laborator,1gg_ Mfurn Carbon - more than 0.25 0.22* 0.35 Manganese - 0.57 or above 0.79 0.80 Phosphorus - less than 0.048 0.01 Sulphur - less than 0.058 0.025 Boron - not specified 0.0MI** MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mect.inical Maatur - ts (EG&G Idaho) Ultimate Tensile Load - 40,100 pounds 44,250 pounds Rockwell Hardness - Rc 24 35 Rc 28.6 i i Remarks: r Boli 50-1 meets the minimum reovirements evaluated by EG&G and defined in ASTM A-325-86a Type 1. j The test data suspected to be in error - reported for engineering information only. i

    • Boron amount exceeds the 0.0005% minimum specified for a Type 2 bolt therefore, bolt 50-1 meets both Types I and 2 requirements.

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y py& qp ; W - 3:21. lsl % .T {; '/ 9 Sampla Identification: 50-2 Source: Ranche Seca Sample Type: Bolt Size: 2 7/8 x 3/4 Identification Grade Mark: A-325 ASTM Standard: A-325 Type 1 j CHEMICAL COMPOSITION (wt%) National Spectrographic ASTM Chemical Soecifications EG&G Idaho Ford Chemical Ce t= W ateries WIK0 Carbon - not less than 0.25 0.23* 0.35 Manganese - not less than 0.57 0.80 0.81 Phosphorus - not more than 0.048 0.01 Sulphur - not more than 0.058 0.024 1 Boron - not controlled 0.0041" 1 MECHANICAL.PROPERIIES Minimum ASTM Mechanical Specifications Actual Mec?zuical Measurements (EG86 Idaho) 2 i Ultimate Tensile Load - 40,100 pounds ' '46,200 pounds 4 Rockwell Hardness - Rc 24-35 Rc 28.1 i Remarks: 4 Bolt 50-2 anjets the_ minimum requirements evaluated by EG&G and defined in ASTM A-325-86a Type 1. i m The test data suspected to be in error - reported for engineering information only. l

    • Boron amount exceeds the 0.0005% minimum specified for Type 2 bolt therefore, bolt 4

l S0-2 meets both Types 1 and 2 requirements. f a e i + e u am#6wm

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isf y ~ + = ~ t.? ll Y ~" u $,' 3 '$ampla identific".tions. 50-3 a Source: Rancho Seco S - Sanple Type: Bolt 7. Size: 2 3/4 x 5/8 1., Identification Grade Mark: 87 '^ t ASTM Standard: A-193 Grade 8-7 CHEMICAL COF M SITION (wt%) National Spectrographic ASTM Chemical Snecifications EG&G Idaho Ford Chemical Cc. t " retaries WINC0 "~' + Carbon - 0.37 - 0.49 0.22* 9.071 0.070 + Chromium - 0.75 - 1.20 0.06 0.09 + Manganese - 0.65 - 1.10 0.38 0.81* 0.40 + Molybdenum - 0.15 - 0.25 0.01 0.03 Silicon - 0.15 - 0.35 0.04 0.27* Phosphorus - less than 0.035 0.009 Sulfur - less than 0.040 0.022 q MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Mea w --ts fEG&G Idaho) + Ultimate Tensile Strength - 125 Ks1 53.8 Ks1 } + 0.2% Offset Yleid Strength - 105 Ksi 40.3 Ks1 Elongation - 16% 30.3% Reduction in area - 50% 78.6% i Hardness - not specified Rb 61.6 l 1 - {- kerarks: i Bolt 50-3,dans est meet the chemical or mechanical requirements defined in ASTM A-193/A-193 M-86' Grade B-7.

  • The test data suspected to be in error - reported for engineering infonnation only.

+ Indicates test results not within specification requirements. m NOTE: Identification mark indicates the manufacturer was Clark Brothers Bolt Co., Midland, Connecticut. ) (Industrial fastner Institute registration.) O e. ..-.g-- ...s ,,-m- -,,....,-.~.-.-.m.. .m.__e.w.-.;__s. m. m m

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? ' k k$ ' I'M S d 2S ~sampla Identiffcatten: 50-4 C Source: Rancho Seco Sample Type: Bolt Size: 2 3/4 x 5/8 Identification Grade Mark: ASTM Standard: A-449 Type 1 ~ QgtlICAL CWWOSIU M (wt%) National Spectrographic ASTM Chemical Snecifications EG&G Idaho Ford Chemical CL i M ateries WINCO Carbon - 0.25 - 0.58 0.25* 0.37 Manganese - not less than 0.57 0.80 0.81 Phosphorus - not more than 0.043 Sulfur - not more than 0.058 0.010 0.021 Boron - not controlled Less than 0.0005 MECHANICAL PROPERTIES j Minimus ASTM Mechanical Soecifications Actual Mecnaalcal Mmur-ts (EG&G Idaho) j Ultimate Tensile Load - 27,100 pounds 29,500 pounds i Proof Load - 19,200 pounds 26,000 ps, ends ** i Maximum Rockwell Hardness - Rc 34 Ac 22.9 Remarks: Bolt 50-4 meets the minimum evaluated requirements of ASTM A-449-86 Type 1. Test data suspect. - reported for engineering information only.

    • Proof load based on proportional limit measured from tensile test.

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4% l flis - p; .. t ??fW?{ y& ME, la Westificattent 50-5 2' C I % ?! # Source: Rancho Seca E Sample Type: Bolt Size: ^' '. 2 3/4 x 5/8 Identification Grade Mark: B7 4 ASTM Standard: A-193 Grade B-7 ,f CHEMICAL CGTOSITlmi (wt%) z. National Spectrographic ASTM Chemical Soecifications EG&G Idaho Ford Chemical Cc. Laboratories WINC0 1 + Carbon - 0.37 - 0.49 0.23* 0.061 0.077 4 + Chromium - 0.75 - 1.20 0.06 0.09 !~ + Manganese - 0.65 - 1.10 0.39 0.80* 0.040 + Molybdenum - 0.15 - 0.25 0.01 0.03 Silicon - 0.15 - 0.35 0.04 0.20* Less than 0.10 Sulfur - less than 0.040 0.020 l Phosphorus - less than 0.035 0.008 MEC}lANICAL PROPERTIES Minimum ASTM Mechanical Soecifications Actual Mecnanical Measurements (EGAG Idahol + Ultimate Tensile Strength - 125 Ksi 55.5 + 0.2% Offset Yield Strength - 105 Ksi 48.4 Elongation - 16% 28.4 i Reduction in area - 50% 75.7 Hardness - not specified Rb 57.4 Remarks: 4 I Bolt 50-5.does not magt.the chemical or mechanical requirements define:1 in ASTM A-193/A-193 M-86 Grade B-7. 4

  • The test data suspected to be in error - reported for engineering information only.

+ Indicates test results not within specification requirements. t l l NOTE: Identification mark indicates the manufacturer was Clark Brothers Boit Co., Midland Connecticut. (Industrial fasteners Institute registration.) w m.. ~ 7.,. - - - - - - - ~ - - - - - - ' ~ ' - * ' - ' ~ ~ ~ ~ ~ ~ ' ~ - '

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Rancho Seco 9:1 - Sample Type: Bolt M Size: 2 3/4 x 5/8 ,Pl Identification Grade Mark: sT' ASTM Standard: A-449 Type 1

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l te ws National Spectrographic ASTM Chemical Snecifications EG&G Idaho Ford Chemical Co. t-W atories VIIICO s-Carbon - 0.25 - 0.58 0.24* 0.37 Manganese - 0.57 or above 0.81 0.81 Phosphorus - less than 0.048 Sulfur - less than 0.058 0.009 Boron - not controlled 0.024 Less than 0.0005 i i MECHANICAL PROPERTIES Minimum ASTM Mechanical Specificatior.s Actual Mecitaical Meas-ts (EGas Idahol ] Ultimate Tensile Load - 27,100 pounds 31,200 pounds Proof Load 19,200 pounds 27,000 pounds ** { Maximum Rockwell Hardness - Rc 34 Rc 24.7 1 f i Remarks: Bolt 50-6 meets the minimum evaluated requirements of ASTM A-449-86 Typ 1. Test data suspect - reported for engineering information only. {

    • Proof load based on proportional limit measured fre-tensile test.

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c -w, - M ig ;g:5amplo~Identificttion: ~ ~ e '[ $_[y .h iiTO;4 50-7 .fM.,T-Sourco; San Onofre Mi~ ' Sampla Type:. Stud Size: 6 3/4 x 1 l i+ Identifu tiore Grade Mark: B7 l{ - ASTM Stanczrd: A-193 Grade 8-7 C

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ASTM Chemical Specifications EG&G Idaho Ford Chemical Co. t=hratories WINCO ,n !E . Carbon - 0.37 - 0.49 0.38 ~ i Chromium - 0.75 - 1.20 1.12 0.88 f-Manganess - 0.65 - 1.10 0.87 - 0.83 Molybdenum - 0.15 - 0.25 0.15 0.17 l' Silicon - 0.15 - 0.35 0.24 0.30 Phosphortis - less than 0.035 0.035 Sulfur - less than 0.040 0.025 t MECHANICAL PROPERTIES Minimum ASTM Mechanical 52Kifications Actual Mectanical Measpis Um idaho) i Ultimate Tensile Strengtn - 125 Ksi ~ 146.9 Ksi* 0.2% offset Yield Strength - 105 Ksi 132.0 Ksi** Elongation - 16% Reduction in area - 50% Hardness - not specified Rc 33 i Remarks: 1' Stud 50-7 meets the minimum evaluated requirements of ASTM A-193/A-193 M-86 Grade B-7. j ? i Tensile test conducted on full size stud as defined in ASTM A-370-86a Supplement 511.1.4 i

    • Yield strength determined using cross head travel.

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o p' - M...Y N,' k. M., @ M x ~ h,tfi isampla Identifiention: - ' S0-8 .~ " Sourc2: San Onofre Sample Type: Stud .?~ Size: 6 3/4.x 1.- N Identification Grade Mark: BT W ASTM Standard: A-193 Grade B-7 m 'j.,1 EL CHEMICAL COMPOSITION (wt%) ibk" 'h?ki ' Nat1onal -m Spectrographic , 'i : ASTM Chemical Specifications EG&G Idaho . Ford Chemical C.L Laboratories WINCO l", Carbon - 0.37 - 0.49 0.39 ! x2 Chromium - 0.75 - 1.20 1.13

0.88 '

i?~ Manganese - 0.65 - 1.10 0.88 0.81 Molybdenum - 0.15 - 0.25 0.14 0.17 0.16 = ' " 3 Phosphorus - less than 0.035 0.036 Silicon - 0.15 - 0.35 0.23 0.29 Sulfur - less than 0.040 0.026 u i MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Medanical Measuramants (EG&G Idahol Ultimate Tensile Strength - 125 Ksi 146.9 Ksi* O.2% Offset Yield Strength - 105 Ksi 132.9 Ksi** i i Elongation - 16% Reduction in area 50% I Hardness - not specified Rc 34.2 Remarks: Stud 50-8 meets the minimum evaluated requirements of ASTM A-193/A-193 M-86 Grade 8-7. i Tensile test conducted on full size stud as defined in ASTM A-370-86a Supplement S11.1.4. l

    • Yield strength determine using cross head travel.

i

. = gjgi A2/T ~ ~ d [g-f.i y~ Ny #h ' I J_ j.1^ = f -q E3e g Jampla Identific;tioni-50-9' L ~'" W W p Sourcof* San Onofre p',;., ~- Sampla Type: Bolt Size: 5 1/2 x 1 1/2 p L.",., Identification Grade Mark: B7 (~ ASTM Standard: A-193 Grade B-7 ^ t ..s b.!

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CHEMICAL COMPOSITION (wt%) 2g - .s n: : .c e National Spectrographic Z. ASTM chemical snecifications EG&G Idaho Ford Chemical Cs I aaratories WINCO 1 i Carbon - 0.37 - 0.49 0.40 Chromium - 0.75 - 1.20 1.17 0.94 Manganese - 0.65 - 1.10 0.82 0.81 Molybdenum - 0.15 - 0.25 0.20 0.19 ,n' Silicon - 0.15 - 0.35 0.17 0.28 . ~ ' Phosphorus - less than 0.035 0.030 Sulfur - less than 0.040 0.024 MECHANICAL PROPERTIES t Minimus ASTM Mechanical SDeCifiCations Actual Mechanical Measur - ts (EG&G Idaho) ^ ! r~ Ultimate Tensile Strength - 125 Ksi 141.0 Ksi I 0.2% Offset Yield Strength - 105 Ksl 124.0 Ksi Elongation - 16% 19% Reduction in area - 50% 60% Hardness - not specified Rc 27.5-Remarks: j Bolt 50-9 meets the minimum evaluated requirements of ASTM A-193/A-193'H-86 Grade B-7. i 1 l e ~~ e-e.

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f. e t g -- + e w gL%1 3 Y-3 --- y e, eF- <y -*e'**w e-e- Swt-Nw a w 's-+=w +s m- - - --

,;.g g f 4 lj {, (11: 'YTSamploidentificatingi-50-10 ~ e g - gi $ -4), J - r f IJ' i ' ' : Sourcs: . Saa Onofre @l : . Sample Type: Bolt AWs Size:- ~ 6'1/2 x 7/8 -Identification Grade Mark: 88M ( n%= ASTM Standard: A-193 Grade B-8M V: 5 CHEMICAL COMPOSITI0ii (wt%) C National Spectrographic 1 ASTM Chemical Specifications EG&G Idaho Ford Chemical Co, Laboratories WINCO Carbon - less than 0.08-0.03 Chromium - 16.00 - 18.00 17.60 17.00 Nickel - 10.00 - 14.00 10.24 Molybdenum - 2.00 - 3.00 2.17 2.14 1 Manganese - less than 2.00 1.41 1.42 Phosphorus - less than 0.045 0.036 i Silicon - less than 1.00 0.40 0.92 .o Sulfur - less than 0.030 0.020 1 i - 7' MECHANICAL PROPERTIES t Mints:sm ASTM Mechanical Specifications Actual Me<.hanical Measw--- - -;ts (EG&G Idaho) i Ultimate Tensile Strength - 15 Ksi 79.4 Kst* j 0.2% Offset Yield Strength - 30 Ksi 44.9 Ksi** Elongation - 30% } Reduction in area - 50% Maximum Rockwell Hardness - Rb 96 Rb 76.9 .c i Remarks: Bolt 50-10 meets the minimum requirements evaluated by EG&G and define.d in ASIM A-193/A-193 M-86 Grade B-8M. Tensile test conducted on full size bolt as defined in ASTM A-370-863, Supplement 511.1.4.

    • Yield strength determined using cross head travel.

s 3 4-w - e.- -.e%9,c-(*.my y Y-n-c 1* y

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g.g. %%8: yd 7 y M[$N0.f~ ki- #; 0 c OiMilsamploIdentification: 11 s-. ~ 4" 3 8 E v iSourca: Saa Onofre Mt Sample Type: Mut. V-Size: 7/8 4-Identification Grade Mark: -8 ~ ASTM Standard: A-194 Grade 8 m g._. CHEMICAL COMPOSITION (wt%) 1 . National Spectrographic ASTM Chemical Soecifications EG&G Idaho Ford Chemical Co. Laboratories WINCO J !N Carbon - less than 0.08 0.05, 0.03 + Chromium - 18.00 - 20.0 17.24, 16.91 17.24, 17.21 17.35 Nickel - 8.0 - 10.5 10.17, 9.87 9.60 Manganese - less than 2.00 1.31, 1.32 1.42, 1.41 Phosphorus - less '.han 0.045 0.035, 0.035 Silicon - less than 1.00 0.40, 0.40 0.92, 0.95 Sulphur - less than 0.030 0.020, 0.020 Molybdenum - not specified 2.29, 2.26 2.27, 2.24. 2.34 ... :i t t.- MECHANICAL PROPERTIES i [ Minimum ASTM Mechanical Specifications Actual Me.asnical Measurements (EG&G Idaho) l l_;. Rockwell Hardness - Rb 60-105 a- , Rb 76.6 Remarks: i Nut 50-11 doesM meet the c,hemical requirements defined in ASTM A-19f/A-194 M-85a Grade 8. ~ ~.. + Indicates test results not within specification requirements. i. NOTE: Identification mark-indicates the manufacturer was Highland Bolt and'Mut Co., Utica, Michigan. (Fastener Technology International registration.)- L f .e ,e .m, r~ -~ .L- -,--~~e

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^ i Q T h$ampla Identificatient ~ SG-12~ ~ =' Et(;' ' 'Sourca: Saa Onofre > Sample Type: 801 t -- .?' V-Size: 6 1/2 x 7/8 ~ {N G Identification Grade Mark: 88M (([ ASTM Standard:- A-193 Grade B-8M ~ gE

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CHEMICAL COMPOSITION (wt%) National Spectrographic ASTM Chemical Soecifications EG&G Idaho Ford Chemical Cg - ta W atories WINCO Carbon - less than 0.08 0.04 Chromium - 16.00 - 18.00 16.81 17.22 17.42 + Nickel - 10.00 - It.00 9.53 9.36 9.26 1~ Molybdenum - 2.00 - 3.00 2.17 2.10 2.24 Manganese - less than 2.00 1.41 -1.37 Phosphorus - less than 0.045 0.032 l + Silicon - less than 1.00 0.40 0.95 Sulfur - less than 0.030 0.022 MECHANICAL PROPERTIES Minimum ASTM Mechanical Specifications Actual Mechanical Measurements (EG&G Idaho) i Ultisate Tensile Strength - 75 Ksi 77 Ksi* l 0.2% offset Yield Strength - 30 Ksf 41.3 Ks1** Elongation - 30% Reduction in area - 50% i l Maximum Hardness - Rb 96 Rb 76.9 ?_ Remarks: t g Bolt S0-12 does.not_ meet the chemical requirement of ASTM A-193/A-193 M-86 Grade B-8M. i Tensile test conducted on full size bolt as defined in ASTM A-320-86a, Supplement S11.1.4. " Yield strength determined using cross head travel. ~ + Indicates test results not within specification requirements. i' " - NOTE-Identification mark indicates the manufacturer was 5'5hland Bolt and Mut Co., Utica, Michigan. (Fastener Technology International registration.) w' _m,,,, e y

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jffY&fNT ^ n' $? h$~l-l$' hf*h.S$ $;#; % g idIdentification: oS0-13 }l ( i9??x %i2Sourc0: ~ Saa Onofre. iheT'SampleType:. Mut. Mr:;..r Size: 7/8 tj N d . Identification Grade Mark: 8 Hi, -ASTM Standard: A-194 Grade 8 5 :- p~ +.._ h,, CHEMICAL COMPOSITION (wt%) Mational Spectrographic f ASTM Chemical Soecifications EG&G Idaho Ford Chemical Co. Laboratories WINCO Carbon - less than 0.08 0.03 m + Chromium 20 16.69 16.99 17.41 Nickel - 8.0 - 10.5 9.91 9.57 Manganese - less than 2.00 1.43 1.48 Phosphorus - less than 0.045 0.033 9 Silicon - less than 1.00 0.44 0.93 Sulfur - less than 0.030 0.023 n Molybdenum - not specified 2.13 2.11 ~ MECHANICAL PROPERTIES Minimum ASTM Mechanical Specif.ications Actual Mechanical Mens - ts (Fcic Idaho) Rockwell Hardness - Rb 60 - 10S Rb 77.5 4 Remarks: Nut 50-13 does not meet _the chemical requirements defined in ASTM A-194/A-194 M-85a Grade 8. + Indicates test results not within specification requirements. NOTE: Identification mark indicates the manufacturer was Highland Bolt and Nut Co., Utica, Michigan. (Fastener Technology International registration.) i \\ ) m..y., . =,. +m, w g p- ,,e v.4-,m .,,-p-ey.- g .e-r a--2. m

.)QQ:ith ~ ??..-%~ C:> TV f: ' "m)4 -~f_ ~_. y u g,,, 4'J I @ h isamp11 Identific tion:1 50-14 M W Source: ~ San Onofre h.rE;,1 Size: ?yi Sample Type: - Bolt d. 6 1/2 x 7/8 -p;H;l Identification Grade Mark: 88M , ibg -ASTM Standard: A-193 Grade B-8M +

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. N. ~ . CHEMICAL COMPOSITION (wt%)

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Spectrographic } -- ASTM Chemical Specifications EGaG Idaho Ford Chemical Co. Laboratories WIMCO Carbon - less than 0.08 0.03 Chromium - 16.00 - 18.00 16.78 17.04 17.44 + Nickel - 10.00 - 14.00 9.63 9.32 9.04 i Molybdenum - 2.00 - 3.00 2.14 2.17 2.21 Manganese - less than 2.00 1.40 1.50 Phosphorus - less than 0.045 0.030 s-Silicon - less than 1.00 0.43 0.93 e

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Sulfur - less than 0.030 0.021 ECHANICAL PROPERTIES I 1 4 Minimum ASTM Mechanical Specifications Actual Mechanical Maaturements (EG&G Idaho) Ultimate Tensile Strength - 75 Kst 76.3 Kst* 0.2% Offset Yield Strength - 30 Ksi 44.2 Ksi** Elongation - 30% Reduction in area - 50% Maximum Rockwell Hardness - Rb 96 Rb 76.3 Remarks: i l Bolt 50-14 does not meet the chemical requirements of ASTM A-193/A-193 M-86 Grade B-8M. Tensile tests conducted on full size specimens as defined in ASTM A-370-86a, Supplement 511.1.4.

    • Yield strength determined using cross head travel.

+ Indicates test results not within specification requirements. .NOTF-Identification mark indicates the manufacturer was '"'hland Bolt and. Nut Co., Utica, Michigan. (Fastener Technology International' registration.) V' ,. ~ 9 9--* me-9 yw .g y cg, y wg g ie gg -+r.- ,+i,e q g-e w w-w--w ee C'

m l j.ff&W!fnL Why $,ffb h lf ~ ~ ^ 10:Identificatioet fr ?!;@t+7JJ~SampleType: ' 50-15 ~ ^ a L ~ ~

5
Sourco:

~ San Onofre Nut 135::4 Size: 7/8 'liCS Identification Grade Mark: 8

Cr 4 ASTM Standard:

A-194 Grade 8 WW. i ;%>;

ip. -

CHEMICAL COMPOSITION (wt%)

e 4

p. . A[ W.1. National !!?;J - Spectrographic f.ggy s - ASTM Chemical Soecifications EG&G Idaho Ford Cnemical Co. t=% ratories WINCO w 1 i #E ' Carbon - less than 0.08 0.03 !ff + Chromium 20 17.11 17.10 17.20 ! T. Nickel - 8.0 - 10.5 9.53 9.50 ~ Manganese - less than 2.00 1.39 1.58

;c;.

Phosphorus - less than 0.045 0.034 ~ Silicon - less than 1.00 0.43 0.94 Sulfur - less than 0.030 0.020 Molybdenum - not specified 2.14 2.11 2.18

c i

~ MECHANICAL PiiQPERTIES l1 Minimum ASTM Mechanical Soecifications Actual Mechanical Maacur===ats (EG&G IA M) l' Rockwell Hardness - Rb 60 - 105 Rb 73.9 i Remarks: j Nut 50-15.does ne1Jeeet the chemical requirements defined in ASTM A-194/A-194 M-85a Grade 8. i + Indicates test results not within specification requirements. NOTE: Identification mark indicates the manufacturer was Highland Bolt and Nut Co., Utica, Michigan. (Fastener Technolegy International registration.) t m l ge. 7 y v er y e.r p g ym.- j-w u ,_---,-%-%y en,y y4*__ -m L u -m__a__,._,

f?fg*SamplaIdentiffcation: ^ ' h Af~ ~$fff~) WAf ' * - N. 57 ~ I U[6Tsf E S0-16 JD ' T" ]&- Y 6Sourc3i San Onofre Pj ~ -Sample Type: .[c -,- Size: ~ Bolt 5 1/2 x 1 1/2 ' 5: Identificat.lon Grade Mark: - B7 ! i ASTM Standard: A-193 Grade B-7 2f ll" i~ CHEMICAL COMPOSITION (wt%) h' National ASTM Chemical Soecifications EG&G Idaho Ford Chemical Co. t atories WINCO Spectrographic . w_, d ?:-

[yT.l. Carbon - 0.37 - 0.49 0.36*

0.39 p' ' f Chromium - 0.75 - 1.20 1.08 0.90 Manganese - 0.65 - 1.10 0.76 0.83 F~ Molybdenum - 0.15 - 0.25 0.18 0.20 ,7 Silicon - 0.15 - 0.35 0.16 0.27 ,( Phosphorus - less than 0.035 0.034 Sulfur - less than 0.040 0.025 w !-s p,1 MECHANICAL PROPERTIES 1-Minimum ASTM Mechanical Specifications Actual Mechanical Measura-ats (EG&G IdW1 w Ultimate Tensile Strength - 125 Ksi 140 Ksi O.2% Offset Yield Strength - 105 Ksi 120 Ksi Elongation - 16% 19% i- ~ Reduction in area - 50% 60% Hardaess - not specified Rc 28.6 r i, Remarks: i Bolt 50-16 meets the minimum evaluated requirements defined in ASTM A-193/A-193 M-86 Grade B-7. i Test data suspect - reported for engineering information only. l n i w .f _.9-, _g 9m--3 -e. ya p

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L g;j g g fElff q ~ b~ hh $l^ -l '^ & D":dSampio Identification: NlN S0-17 -f Sourca: See Onofre I Sample Type: Bolt 2 3 Size: 5 '/2 x 1 1/2 : . Identification Grade Mark: B7

~

ASTM Standard:- A-193 Grade B-7 ,If .h CHEMICAL COMPOSITION (wt%) National-Spectrographic AS1M Chemical snecifications EG&G Idaho Ford Cham

  • cal C;.

Laboratories WINCO Carbon - 0.37 - 0.49 0.38 Chromium - 0.75 - 1.20 1.26 0.91 Manganese - 0.65 - 1.10 0.87 0.87 Molybdenum - 0.15 - 0.25 0.21 0.18 1, Silicon - 0.15 - 0.35 0.19 0.29 Sulfur - less than 0.040 0.028 Phosphorus - less than 0.035 0.038* +_

1 j'"

MECHANICAL PROPERTIES i Minimum ASTM Mechanical Specifications Actual Mechanical Measurements (EG&G Idaho) ' e...~- i Ultimate Tensile Strength - 125 Ksi 14~3 Ksi 0.2% offset Yield Strength - 105 Ksi 126 Ksi Elongation - 16% 19% Reduction in area - 50% 59% 51ardness - not specified Rc 28.6 Remarks: Bolt 50-17 meets the minimum evaluated requirements defined in ASTM A-449-86 Type 1.

  • Test date suspect - reported for engineering information only.

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