ML20202J841

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Rev 2 to Quality Instruction QI-070, Reinsp of Tubing Welds/Matl
ML20202J841
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 03/19/1986
From: Bajada E, Hansel J, Patterson A
EVALUATION RESEARCH CORP.
To:
Shared Package
ML20202J051 List: ... further results
References
QI-070, QI-70, NUDOCS 8607170155
Download: ML20202J841 (11)
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Text

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EVALUATION RESEARCH CORPORATION COMANCHE PEAK RESPONSE TEAM QUALITY INSTRUCTION FOR ISSUE-SPECIFIC ACTION PLAN ISAP VII.c INSTRUCTION NO: QI-070 REVISION NO:

2 ISSUE DATE: 03/19/86 O

REINSPECTION OF TUBING WELDS / MATERIAL Prepared by:

Date:

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QI-070 Rev. 2 N,'s

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1.0 PURPOSE The purpose of this instruction is to provide detailed direction and accept / reject criterion for performing reinspections of Tubing Welds / Material.

2.0

'PPLICABILITY This instruction applies to all samples selected for reinspection from the Tubing Welds / Material population in Unit 1, Common, and Unit 2.

The population is described in the population description for Tubing Welds / Material.

3.0 REFERENCES

3.1 Description memorandum for Reinspection of Tubing Welds / Material, QA/QJ-RT-1168, dated January 7, 1986, J.

Schauf to A. Patterson.

3.2 CPP-009, " Performance of Reinspections and Documentation Review."

4.0 GENERAL Reinspections are performed and documented in accordance with established CPRT procedures and instructions. Reference 3.2 provides the instructions for performing, documenting and processing the results of the reinspections.

Record on Attachment 6.3, Inspection Tools Used Form, the corresponding code of the Inspection Tools used for inspecting each attribute as applicable. Attachment 6.3 provides a list of standard inspection tools and their corresponding codes.

Verification of reinspection attributes shall be recorded on the Comanche Peak Response Team Checklist, Attachment 6.1.

All data required for documentation review shall be recorded on the Data Recording Form, Attachment 6.4.

Record deviation locations and dimensions, and any additional reinspection remarks, on the

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Supplemental Remarks form, Attachment 6.5.

l Since all tubing / fitting welds are expected to be fillet (socket)

I welds this procedure does not provide any criteria for butt welds.

Should there be any butt veld, the cognizant engineer will then I

issue supplemental instructions to the inspector.

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2

QI-070 Rav. 2 4.0 GENERAL (Cont'd)

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4.1 Responsibilities QA/QC Inspectors perform reinspections in accordance with established project procedures and instructions. Reference 3.2 addresses the method used to perform reinspections and to document and process the results.

4.2 Policy Activities performed under this procedure shall conform to the policies contained in the latest Comanche Peak Response Team Program Plan and Issue-Specific Action Plan (s).

5.0 REINSPECTION PROCEDURE General Requirements Prior to the start of reinspection, assure that welds are clean of any foreign material which would impede an adequate visual inspection.

When it is necessary to measure weld dimensions or surface defects during the course of the reinspection, unless O

specified tolerances are provided, such dimensions should be determined as accurately as is practically achievable using standard inspection tools.

NOTE:

Identify size and location of all deviations. Using l.5, provide a detailed description and sketch depicting existing conditions.

1. Tubing Welds 1

1.a.

Weld ID and Location i

Verify the weld identification and location is per the drawing and applicable design documents.

NOTE: No dimensional Eheck is required.

1.b.'~ Configuration i

Verify the type of weld configuration. The joint

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connection shall be a socket weld unless otherwise specified on the isometric drawing or associated design documents.

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3

QI-070 Rsv. 2 5.0 REINSPECTION PROCEDURE (Cont'd)

1. Tubing Welds (Cont'd) 1.c.

Weld Size Verify the weld size:

Tubing other than the Incore Detector Tubing l

For tubing 1/2 inch diameter and less, the required minimum weld size is 1/8 inch or equal to the thickness of the hub (lip), whichever is less.

Incore Detector Tubing / Coupling Connection (Welds 2, 3, 4 and 5, as detailed in FSI-00043 and Westinghouse Drawing 1207E02) i The required minimum weld size is 5/16" (based on a calculated value of.264 inch) - 1/32" tolerance.

Incore Detector Tubing / Tube to Nozzle Connection (Weld 1, as detailed in FSI-00043, Westinghouse Drawings 1207E02 and E-10873-184-001).

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The required minimum weld size is 5/16" (based on a calculated value of.264 inch), -1/32" tolerance.

Where it is not possible to determine the weld size (due to the surface being ground, blended or polished uniformly), verify that the weld is equal to the wall thickness of the nozzle and that it blends smoothly with the tube, 1.d.

Undercut Verify that no undercut is present.

1.e.

Overlap

  • Verify that the wald is free of overlap.

1.f.

Cracks, Lack of Fusion Verify that the welds have no visible cracks or lack of fusion.

1.g.

Welders ID Symbol O

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Welders I.D. symbols may be etched on fittings, flanges, etc.

4

QT-070 Rsv. 2 5.0 REINSPECTION PROCEDURE (Cont'd)

1. Tubing Welds (Cont'd)

If available, record welders I.D. symbol on the Data Recording Form, Attachment 6.4.

This data is to be used for the documentation review process.

NOTE:

Record "Not Available" if the welders I.D.

symbol is not marked.

1.h.

Weld Rust Verify that the weld has no rust colored corrosion product build-up which may be linear or localized.

Thin films of surface rust are acceptable.

NOTE:

The materials engineer will be available in the evaluation of weld rust acceptability.

2.

Base Material NOTE:

The reinspection shall be limited to within two (2) feet on both sides of the weld being reinspected or to the nearest weld, whichever distance is less, unless stated otherwise.

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V 2.a.

Base Material Traceability I

Record on the Data Recording Form, Attachment 6.4 the l

material's heat number (tube, valve, fittings, etc.),

color code or lot number, and/or any additional markings.

NOTE:

Record "Not Available" if the material identification color coding or markings I

cannot be located or identified.

2.b.

Base Material Defects Surface defects consists of the following l

possible types: ' Arc Strikes, Grinding Marks, Pit Marks, Gouges, and Scratches, Indentations, and

  • ' Identification Markings etc.

Tubing Verify that there are no base material defects which exceed a depth greater than that tabulated on Attachment 6.2 (Allowable Defect Depth Tables "A" & "B").

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QI.-070 Rav. 2 5.0 REINSPECTION PROCEDURE (Cont'd)

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Base Material (Cont'd)

Tube Fittings For straight tube fittings (equal size inlet and outlet) verify that there are no base material defects which exceed a depth greater than that tabulated for the adjoining tube.

(See Attachment 6.2, Tables "A" & "B").

l For reducing tube fittings verify that there are no base material defects which exceed a depth greater than that tabulated for the smaller sized adjoining tube.

(See.2, Tables "A" & "B").

l Other (e.g., Nozzles on the Incore Detector Instrumention)

Verify that there are no base material defects which exceed a depth greater than that tabulated for the adjoining tube.

(See Attachment 6.2) 2.c.

Base Material Rust 3

Verify that the base material has no rust colored corrosion product build-up which may be linear or localized. Thin films of surface rust are acceptable.

NOTE:

The materials engineer will be available in the evaluation of base material rust acceptability.

6.0 ATTACHMENTS 6.1 Comanche Peak Response Team Checklist 6.2 Allowable Defect Depth Tables g

6.3 Inspection Tools Used Form, and Inspection Tools Codes 6.4 Data Recording Form 6.5 Supplemental Remarks Form t

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Attachmxnt 6.1 COMANCHE PEAK RESPONSE TEAM QI-070 CHECKLIST Rev. 2 POPULATION DESC VERIFICATION PKG NO.

Tubing Welds / Material 1-M-TUWM-0 PAGE 1 0F 1

QUALITY INSTRUCTION QI-070 X REINSPECTION UNIT 1 EQUIPMENT MARK / TAG NO.

C DOCUMENTATION REVIEW UNIT 2 O coaxou VERIFICATION REMARKS ACCEPT REJECT DATE

1. TUBING WELDS
a. Weld ID and Location
b. Configuration
c. Weld Size
d. Undercut
e. Overlap O
f. Cracks, Lack of Fusion (Use Data Recording
g. Welders ID symbol (not accept / reject f

Form, Attachment 6.4) attribute)

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h. Weld Rust
2. BASE MATERIAL
a. Material l

Traceability (Use Data Recording Form. Attachment 6.4) i l

(not accept / reject attribute)

b. Material Defect's'
c. Material Rust PREPARED BY:

APPROVED BY:

O DISCIPLINE ENGR.

DATE LEAD DISCIPLINE ENGR.

DATE INSPECIw BY:

APPROVED BY:

INSPECTOR DATE LEAD INSPECTOR DATE CPP-g07.1J. Reyiston 0

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Attachmtnt 6.2 QI-070 Rev. 2

's Page 1 of 1 ALLOWABLE DEFECT DEPTH TABLE "A" l

NOMINAL TUBE PROCURED WALL MINIMUM WALL ALLOWABLE SIZE THICKNESS THICKNESS DEFECT DEPTH 1/4" 049" 035"

.014" 3/8" 049" 035"

.014" 1/2" 065" 035"

.030" O

ALLOWABLE DEFECT DEPTH TABLE "B" (Incore Detector Tubing / Bottom Mounted Instrumentation)

TUBE SIZE PROCURED WALL MINIMUM WALL ALLOWABLE (0.D.)

THICKNESS THICKNESS DEFECT DEPTH

  • .99 (1")

.240" 220"

.020" l

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  • Per FSI-00043, This is 3/4" nominal special (.240!.024" l

wall thickness) l I

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AttachmInt 6.3 QI-070 Rev. 2 Page 1 of 1 INSPECTION TOOLS USED FORM i

POPULATION DESCRIPTION TUBING WELDS / MATERIAL VERIFICATI0N PACKAGE NO.

I-M-TUWM-ATTRIBUTE TOOL CODE SERIAL NO/ CALIBRATION DUE DATE 1.

TUBING WELDS j

a. Weld ID and Location 1
b. Configuration

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c. Weld Size
d. Undercut

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e. Overlap l
f. Cracks, Lack of Fusion R. Welders ID Symbol
h. Weld Rust 5

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2. BASE MATERIAL
a. Material l

Traceability

b. Material Defects
c. Material Rust j

INSPECTOR DATE i

INSPECTION TOOLS AND CODES l

CODE TOOL CODE TOOL a

AF ANGLE FINDER MI MICROMETERS BL BUBBLE LEVEL MM MIRROR j

BS BOROSCOPE MN MAGNET BW 1/32", 1/16", 3/32", 1/8" WIRE PB PLUM BOB CG CONTOUR GAGE PR PROTRACTOR j

DF DRY FILM THICKNESS GAGE SC SLIDE CALIPER FG FEELER GAGES SR 6" RULE l

FL FLASHLIGHT ST STEEL TAPE MEASURE FM FIBRE METAL FILLET GAGES TG TAPER GAGE GG GAL FILLET CAGES UD UNDERCUT GAGE (DIAL) i HL HI-LOW GAGE UP UNDERCUT CAGE (PIT)

MG MAGNIFYING GLASS VC VERNIER CALIPER 2

l VT VISUAL INSPECTION i

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Attachmsnt 6.4 QI-070 Rev. 2 Page-1 of 1 DATA RECORDING FORM O

TUBING WELDS / MATERIAL VERIFICATION PACKAGE NO.

I-M-TUWM-ATTRIBUTE DA1A

1. Tubing Welds
g. Welders ID Symbol
2. Base Material
a. Base Material Traceability.

(Color Coding, Heat number, lot number and or additional markings) s i

i INSPECTOR DATE 1

e Attachm2nt 6.5 QI-070 Rev. 2 Page 1 of 1

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SUPPLEMENTAL REMARKS FORM TUBING WELDS / MATERIAL VERIFICATION PACKAGE NO.

I-M-TUWM-ATTRIBUTE (No./Deseription)

REMARKS o

O i

O INSPECTOR DATE

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