ML20127C531

Rev 0 to Work Plan Procedures/Qc Instructions Wpp/Qci 107, Removal of Welded Attachments & Surface Conditioning for Structural Steel

ML20127C531
Person / Time
Site:	San Onofre
Issue date:	06/05/1981
From:	BECHTEL GROUP, INC.
To:
Shared Package
ML20127A193	List: ML20127B673 ML20127B702 ML20127B728 ML20127B955 ML20127B979 ML20127C116 ML20127C195 ML20127C531 ML20127C659
References
FOIA-84-885 WPP-QCI-107, NUDOCS 8506220227
Download: ML20127C531 (25)

Text

.

SAN ONoFRE NUCLE AR CENER ATINS STATION X

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QCI UNITS 2 & 3 N O.

107 APP. IV REV.

O REMOVAL OF WELDED ATTACHMENTS y

TITLE:

PAoE 1

Or 2

g AND SURFACE CONDITIONING FOR STRUCTURAL STEEL issued: 6/5/81 REVISED:

WORK PLAN PROCEDURES /QU ALITY CONTROL INSTRUCTIONS pQgg PFC l

PFQAES d A b '1 '

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/ (/IHIS REVISION CONVW.M.4 WA P AL ?

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procedure for the evaluation and elimination of surface depressions cauwd by l

over-grinding durt ;; tb for.avai et ac.pmy er pa.uncnt welded attachments to structural steel members.

t 1.2 Iti odditin, this procedure applies to the evaluation and eliminarich M Mo r j

'prface defects nuh e *a5c?eko, richA guqe, g4 ti., arc terU m ett t

2.0 ABBREVIATIONS

~

k ASTM anerican Society for Testing and Materials CFE Construction Field Engineer CIDR Construction Inspection Data Report CS Construction Specification

[

FWE Field Welding Engineer NCR Nonconformance Report PCN Procedure Change Notice PFE Project Field Engineer PFQAES Project Field Quality Assurance Engineering Supervisor PQCM Project Quality Control Manager WPP/QCI Work Plan Procedure / Quality Control Instruction WQCE Welding Quality Control Engineer WR Weld Report

3.0 REFERENCES

WPP/QCI-001 - Organization and Responsibilities.

WPP/QCI-002 - Establishment and Control of Field Generated Procedures.

WPP/QCI-002, APP. I - Procedure Change Notice.

WPP/QCI-006 - Field Control of Nonconforming Items.

WPP/QCI-107 - Structural Steel and Miscellaneous Steel Installation.

WPP/QCI-202 - Welding Controls for AWS D1.1 Welding.

CS-CS - Structural Steel Erection.

ASTM A-6 General Requirements for Delivery of Rolled Steel Plates, Shapes, Sheet Piling and Bars for Structural Use.

4.0 CENERAL 4.1 The craf tsman assigned to the removal by grinding of temporary or permanent wald attachments or other surface defects shall be instructed not to grind below the rolled or finished surface of the structural steel.

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8506220227 850213 ptyg po1A

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BELL 84-885 PDR m

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SAN ONOFRE NUCLE AR GENER ATING ST ATION WPP QCl UNITS 2 & 3 NO.

107 APP.

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TN PAGE 2

Or 2

7 AND SURFACE CONDITIONING FOR STRUCTURAL STEEL 4.2 For surface depressions or defects that cannot be eliminated without infringe-ment into the structural steel surface or where unintentional over-grinding occurs, nd wolding repair is required, the responsible WE will be notified by the l u e im.wennelug required to eliminate the surface depression or defect in IMacipline CFE or craftsrum for evaluation and recor.snendation on the extent of accordance with this procedure and CS-C5.

4.3 Surface conditioning shall meet the requirement of CS-C5 which references the criteria specified by ASTM A-6.

4J M tachments shall not be removed. br/ hvaer riows.

5.0 PROCED0kt 5.1 In the event that the temporary or permanent welded attachment removal by grinding inadvertently progresses below the finished surface of the steel, causing a visible depression, the Discipline CFE or craf tsman shall notify the FWE in accordance with inspection requirements of WPP/QCI-107.

I 5.2 The FWE will evaluate and determine, by measuring the depression, if the grinding has reduced the material thickness beyond that allowed by CS-C5.

5.3 If the grinding has reduced the material thickness beyond that specified in paragraphs 8.3.2.1, 8.3.2.2, and 8.3.2.3 of ASTM-A6, the FWE shall initiate an NCR as per WPP/QCI-006. If the grinding does not exceed the above limits but exceeds the limits of paragraph 8.3.1 (ASTM-A6) the FWE shall initiate a WR-7 for wcld repair. If the depth does not exceed the limits of paragraph 8.3.1 (ASTM-A6) the area shall be faired into the surrounding metal surface.

5.4 Other surface defects such as, scratches, nicks, gouges, pits and arc strikes detected during the course of construction shall,be reported to the FWE for evaluation and elimination in accordance with paragraphs 5.2 and 5.3 of this procedure.

Y 1

6.0 DOCUMENTATION 6.1 Surface areas on Quality Class II structural steel shall be inspected by the WQCE per WPP/QCI-107. The inspection by the WQCE are to be recorded in accordance with documentation instructions of WPP/QCI-107.

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-grinding during th. removal of t,

porat or permanent welded attachments to ls m t u r t.

stcc mmbers.

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In c'.' ' tion, this procedure app'ies to the evaluation and elimination of other e

'tce Jet ets v.ich as scratch s, nicks, gauges, pits, arc strikes, etc.

.A.Blu: 'VI ATI

\\STM Ar.erican S?ciet, for Testing and Materials CFE Constructirn Field Engineer

'IDR

':enstrt etion Inspection Data Report

.,S Construction Specificarte:

FW".

Field Welding Er.r,ineer "CR Nctconformance heport PCN Procedure Ciange Notice "FF Project Field Engineer I

PFQAES Itojact Field Quality Assurance En,,2ncering Supervisor "QCM Project Quality Control Manager l

TP/Qc' Wcrk Plan Procedure /Quailty Control Instruction g

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Procedure Change ' tice.

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WP /QCI-107 - Structural Steel and Mista11aneous Steel Installation.

Wi 1cl-20

- Weluing Cont rols ' n-AWS !>1.1 Welding.

W-!'

- Stt. tural Steel Erection.

I f:iTV.4-6-7 3 - Gene 31 Req ui reme'.ts for Delivery f Rolled Steel Plates, Shapes, Shaet Piling and P.ars for J.tructural Use.

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STRUCTURAL STEEL 4.2 For surface depressions or defects that cannot be eitminated without infriage-mea t into the structural steel surface or where unintentional over-grinding occurs, and welding repair is required, the responsible FWE will be notified by the Discipline CFE or craf tsman for evaluation and recommendation on the extent of surface conditioning required to eliminate tite surface depression or defect in accordance with this procedure and CS-C5.

4.3 Surface conditioning shall meet the requirement of CS-C5 which references the criteria specified by ASTM A-6.

4.4 Attachments shall not be removed by hammer blows.

5.0 PROCEDURE 5.1 In the event that the temporary or permanent welded attachment removal by grinding inadvertently progresses below the finished surf ace of the steel causing a visible depression, the Discipline CFE or craftsman shall notify the FWE in ar.ordance with inspection requirements of WPP/QCI-107.

5.2 The FWE will evaluate and determine, by measuring the depression, if the grinding has reduced the material thickness beyond that allowed by CS-05.

t, 5.3 If the grinding has reduced the material thickness beyond that specified in paragraphs 8.3.2.1, 8.3.2.2, and 8.3.2.3 of ASTM-A6, the FWE shall initiate an

?;. R as per WPP/QCI-006.

If the grinding does not exceed the above limits but exceeds the limits of paragraph 8.3.1 (ASTM-A6) the FWE shall initiate.- WR 7 f.r weld repair.

If the depth does not exceed the limits of paragraph 3.3.1 (ASTM-A6) the area shall be faired into the surrounding metal s'irface.

5.4 Other surface defects such as, scratches, nicks, gouges, pits and arc strikes detected during the course of construction shall.be reported to the FWE for evaluation and elimination in accordance with paragraphs 5.2 and 5.3 of this procedure.

6.0 DOCUMENTATION 6.1 Surface areas on Quality Class II structural steel shall be inspected by the WQCE per WPP/QCI-107. The inspection by the-WQCE are to be recorded in accordance with documentation instructions of WPP/QCI-107.

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