ML20203A019

Rev 2 to Quality Instruction QI-006, Reinsp of Type 2 Skewed Welds

ML20203A019
Person / Time
Site:	Comanche Peak
Issue date:	09/28/1985
From:	Hansel J, Ross G EVALUATION RESEARCH CORP.
To:
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References
QI-006, QI-6, NUDOCS 8607170162
Download: ML20203A019 (14)

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EVALUATION RESEARCH CORPORATION COMANCHE PEAK RESPONSE TEAM PROJECT PROCEDURE FOR SPECIFIC ACTION PLAN VII.c PROCEDURE NO: QI-006 REVISION NO: 2 EFFECTIVE DATE: 09/28/85 REINSPECTION OF TYPE 2 SKEWED WELDS 8607170162 860711 PDR ADOCK 0500044 5 A PDR ,,

l Prepared by: [9 / Date: 9 f!86~

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Approved by: /2 #2ef'M ' ~

e: 9-E4 -J'M-Isstie Coordigd' tor Approved by: h. Date: 9 I 7- I[

On-Site QA Representative

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Approved by: ,,_n== Date: Y ~/ 8J eiriew Team Leader '/ /

QA/Q

QI-006 4

Rev. 2

.s 1.0 PURPOSE 1.1 This instruction delineates the inspection criteria to be used for the reinspection of random samples of type 2 skewed welds on class 1, 2, and 3 component supports.

Note: Type 2 skewed welds are defined as welds between two members with curved surfaces or curved cross sections, such as a pipe stanchion (a section of pipe used as a structural member) welded to another pipe stanchion or a curved pipe pad.

2.0 APPLICABILITY 2.1 This instruction is effective for reinspection and recording of data for class 1, 2, and 3 component supports with type 2 skewed welds in units 1 and 2.

3.0 REFERENCES

3.1 TRT Action Item V.a 4.0 CENERAL 4.1 Responsibilities 4.1.1 The Project Mechanical Engineer is responsible for the identification of specific support welds requiring

, . reinspection. The specific supports with skewed welds to be reinspected are identified on attachment 6.5.

4.1.2 Evaluation Research Corporation (ERC) is responsible l for the implementation of this instruction. ERC l personnel shall perform the reinspections in accordance l with this Quality Instruction and shall be trained and

, demonstrate proficiency to this instruction. All I

training shall be documented per ERC Procedure CQAP-1.2 (Personnel Indoctrination and Training) and meet the education and experience requirements of ANSI N45.2.6-78 for Level II inspectors.

l 5.0 INSTRUCTION 5.1 Component support welds at skewed joints shall be reinspected to the criteria provided on the applicable component support drawing. Only those welds noted by the project mec.hanical engineer on the support drawing need to be reinspected.

l 5.2 Stanchion to pipe pad / saddle veld size shall be determined as

{ d detailed in attachment 6.1 and/or 6.2 as applicable.

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2

QI-006 e Rav. 2

'~') 5.0 INSTRUCTION (Cont'd)

(J 5.3 Stanchion to stanchion welds in which the members are perpendicular shall be inspected in accordance with attachments 6.1 and/or 6.2 as applicable.

5.4 Tube steel to pipe or pipe pad / saddle shall be inspected in accordance with attachment 6.3.

5.5 Inspection of stanchion to stanchion welds in which the members are attached at a skewed angle will be inspected in accordance with specific instructions provided in the inspection package provided by project mechanical engineering.

5.6 Documenting reinspection results.

5.6.1 The component support skewed weld data sheet (attachment 6.4) and the skewed weld worksheet shall be used to document reinspection results. The completed reports will become part of the inspection package and then transmitted to the project mechanical engineer for review and evaluation.

6.0 ATTACHMENTS

() 6.1 6.2 Inspection of Skewed Welds with Scribe Marks Inspection of Skewed Welds with Contour Gauge 6.3 Inspection of Skewed Welds on Tube Steel Stanchions 6.4 Component Support Skewed Weld Data Sheet 6.5 Specific Supports to be Inspected 6.6 Support Drawing 6.7 Pipe Sizes and Wall Thickness 6.8 Skewed Weld Worksheet 0

O 3

Attachment 6.1

. N b ---+ W-- QI-006 Rev. 2 s,-- D y Page 1 of I 2.

1. When scribe mark is Os visible measurement of A A skewed weld is as shown.

V Y

• To measure this weld leg size use normal weld .

6 gauges. l 9 3" Qc y

• • Find scribe mark "A". 3 inches from intersection of parts at fitup attachment. Measure "B" dimension and subtract

-)(- -)( $ , "B" from "A" to get "C" m gl o (leg size).

NOTE: Use attachment 6.7 for actual outside diameter of pipe and stanchion.

NOTE: For both attachments 6.1 and 6.2...

Where D2 2 Then measure or take datum points around thz EI 3 full circumference of weld.

c Where D2 2 Then measure or take datum points as shown.

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&%q y Due to engineering evaluation of weld strength, only the weld between points A-B and C-D need to be measured when D2 ratio is greater than 2/3.

A r% 8 Points A, B, C and D will be located by taking 1/3 D1 from centerline, a D SD, %D, O o I SEC.T. A-a

Attachmtnt 6.2

. QI-006 Rev. 2 Page 1 of 2 The following steps shall be followed to verify stanchion weld sizes where scribe layout marks have not been established at the time of weld

, joint fitup.

.1. Starting at a 90* location, mark off pipe as shown in Figure 1, at approximately 2" on center, for stanchion larger than 8" in diameter, mark off 3" on center. Number marks clockwise on the pipe and worksheet and show the orientation of weld on the worksheet. (i.e., elevation view looking west a mark should be placed at any point where the weld is visually smaller than the rest of the weld and measured.

NOTE 1: Where the hanger design / configuration makes it impossible to take measurements at the planned datum points, the inspector shall take measurements as near as possible to the planned points and record the locations on the skewed weld work sheet.

NOTE 2: If 100% of the weld (s) on a support to be inspected is not accessible because of interferences, but at least 50% of the weld is accessible, the inspector shall take measurements starting at the first accessible datum points and note the inaccessible areas on the skewed weld worksheet. If more than 50% of the welding is inaccessible, the hanger package shall be noted and returned to the Project Mechanical Engineer for selection of an alternate package.

O 2. Press the contour gage against the weld at the points marked above. Place the contour gage as perpendicular to the face of the weld as possible.

3. Prepare a worksheet per Fig. I and 2. The hanger number must be on the worksheet. Assign a number to each weld on the hanger drawings to be inspected and on the worksheet. (NOTE:

Initial and date assigned numbers as shown on Attachment 6.6).

4. Transfer the weld configuration to the worksheet by outlining the contour gauge and number each transfer with the corresponding number given in step 1 and 3.

5. Use a straight edge and establish tangent lines as shown in Fig. 2, steps 2 and 3.

O V

Attachmant 6.2 QI-006 Rev. 2 Page 2 of 2 Figures 1 and 2 r

/ NOTE: Heasure size of fillet at 8 2 90' with standard fillet weld gauges.

90' p 3 Datum point need only to be located at one 90*.

+ r 5

Figure 1

1. Transfer outline of contour gauge.

2. Draw two tangent lines corresponding to slope of outline as shown. Measure angle of the tangent lines and enter on worksheet. I lod Pts,

3. Draw two more tangent lines parallel to first two lines at intersection of -

y contour profile and first two tangent lines. Take a measure between the two N y tangent lines to get size of weld. 3 N' Figure 2 O

4

Attachmsnt 6.3 QI-006 Rev. 2 Page 1 of 1 N

{d

1. For tube steel to pipe or pipe pad / saddle use criteria in Attachment 6.2. for measurement of skewed welds.

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2. Take measurements at datum points A, B, C, D (center of curved corners on tube steel),

y also take measurements at 2" or 3" increments according to size of tube steel per Attachment 6.2.

NOTE: Measurements need only to be taken between points A-B and C-D.

' 2 3. If ratio D2 2, no

' c/ \B H>3 measurements need to be taken.

i

• D2  % Note this is on hanger package and return to Project Mechanical Engineer.

d [ 4. Number datum points clockwise and note orientation of sketch on worksheet.

• D, >

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Attachment 6.4 QI-006 Rev. 2 Page 1 of 2

[ COMPONENT SUPPORT SKEWED WELD DATA SHEET

'v SUPPORT # REV.

A. Instructions Inspector shall assign numbers in numerical sequence to all skewed welds on the inspection copy of the construction drawing that are to be reinspected per engineering direction. (Note: Welds to be reinspected will be noted on drawing.) Previously assigned numbers remain the same.

The weld numbers shall be entered on the ne t Support Skewed Weld Data Sheet (SWDS).

The inspector shall initial and dat e SWDS a datum point inspected per weld. If more than o pector c ucts veld inspections on a support, the inspect 11 nitial and date only those welds actually inspecte Siz 1 1) = Stanchion Side Leg; Leg Size 2 (Leg 2) ide L B. Weld Reinspection O WELD NO. DATUM PT?

\ INSP/DATE COMMENTS h V c,.) -

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Attachment 6.4 QI-006 Rev. 2 Page 2 of 2 WELD NO. DATUM PT. SIZE INSP/DATE COMMENTS LEG 1 LEG 2 D.

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Attachmsnt 6.5 QI-006 Rev. 2 Page 1 of 2

/~~h HANGER NUMBER HANGER NUMBER Y] 1. SI-2-071-405-S32K 27. S1-2-038-409-S22A

2. CC-1-202-001-S35A 28. RH-2-016-401-S22K

3. CT-2-005-403-S22K 29. AF-1-002-033-Y33K

4. CC-X-022-001-F43A 30. SW-2-035-703-J03R

5. AF-2-101-431-S33A 31. CC-X-079-006-A43A

6. CC-2-158-408-A43K 32. MS-1-002-008-C72K

7. CC-1-009-016-A43A 33. CT-1-053-404-C62A

8. RH-1-001-010-C41K 34. S1-1-037-005-S32A

9. RC-1-146-003-C81K 35. DD-1-012-033-Y33A

10. CC-2-028-411-S33K 36. CS-1-597-006-C42A

11. CT-1-049-415-C92A 37. VA-X-05-716-A73K

, 12. CC-2-116-006-F43A 38. AF-2-084-401-S33A

() 13.

14.

AF-2-006-412-S33A RH-2-064-406-S22R 39.

40.

BRX-001-720-A53A CC-1-087-004-A33A

15. RC-1-135-004-C51K 41. RC-1-135-008-C41K

16. CS-2-597-403-C42A 42. CC-1-235-006-C53R

17. CT-1-013-421-C82R 43. AF-2-009-413-S33A

18. MS-1-004-009-C62K 44. CT-1-039-423-C42A

19. BR-X-106-059-S43A 45. CT-1-054-431-C42A

20. AF-2-004-405-S33A 46. CT-1-042-401-C82A

21. CT-2-039-404-C42A 47. CT-2-127-403-C72A

22. CC-1-035-018-A33A 48. CT-1-127-403-C72A

23. D0-1-038-003-S63K 49. MS-1-002-012-C72S

24. CT-2-038-404-C52A 50. CC-1-065-003-S33R

25. MS-1-003-005-C72K 51. DD-1-012-724-A33A

26. AF-1-006-013-S33A 52. MS-1-003-009-C72K l -

Attachmsnt 6.5 f

, QI-006 Rev. 2 l

Page 2 of 2 HANGER NUMBER

53. CT-1-033-414-C92K

54. CC-1-019-003-A33R

. 55. CC-2-028-414-S33R

56. CC-1-109-005-A43A

57. CC-1-173-012-S53A

58. CC-2-068-405-S33R

59. MS-2-416-405-S43R

60. CC-1-065-002-S33R 9

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SKEWD WELD WORKSHEET SUPPORT NO. Rev.

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