GNL3Z PJ PIPING INSPECTION

GNL3Z PJ PIPING INSPEC-TION

2010. JUL.28th

QA/QC TEAM

◈ Inspection Sequence

NoInspection

ActivityApplication

Code

Inspection Authority

REMARKSDW SAIPEMSONATR

AHARH

1Receiving In-

spectionRelevant QCP ● ●

2Fit-UP Inspec-

tionRelevant WPS ● ● ●

3Ferrite Con-

tentsRelevant Pro-

cedure● ● ●

Only Stain-less

4Visual In-spection

ASME B31.3● ● ●

5 RTASME B31.3

● ● ● After PWHT

6Hardness

Check

Relevant Pro-cedure ● ● ●

After PWHT

7 PMIRelevant Pro-

cedure ● ● ●Only Stain-

less

8 Hydro TestRelevant Pro-

cedure ● ● ● ●

1. Receiving Inspection1.1 Check Point - Dimension Check - Direction Check(Flange, Elbow, Blanch) - Damage Check(Dent, Painting, Welding Bevel, Flange Face etc) - Color Coding Check - Preservation Check

1.2 Authorized Personnel - Material Team - Construction Team - Saipem Authorized Personnel - DW QC : Preparation of NCR( 자재 팀 , 공사 팀 부적합 사항 보고 시 )

1.3 Report - Overage, Shortage & Damage Report

2. Fit-Up Inspection1. Check Point - Root Gap(WPS) - Bevel Angle(WPS) - Misalignment(1.59mm-API 1104) - Tapered Angle(ASME B31.3) - Foreign Material(Scale, Paint, Oil, Grease etc)

2. Authorized Personnel - Construction Team : Preparation & Requisition of Inspection(RFI) - DW QC : Implement of Inspection - Saipem & Sonatrach Inspector

3. Report Pre-Welding Visual Inspection Report(Form code:

MDT.WL.CDQ.0150)

3. Ferrite Content Measurement1. Check Point - Fe Content Measure : Root Pass of Stainless Steel - Carbon Wire 사용 금지


3. Device(Refer to Photograph)

4. Report : Non Destructive Examination Report(Form code: MDT.WL.CDQ.0140)

4. Visual Inspection1. Check Point(ASME B31.3 Para 344.1) - Surface Imperfection of Weld Crack : No Permitted Lack of Fusion : No Permitted Incomplete Penetration : No Permitted External Porosity : No Permitted Surface Roughness : ≤500 min Ra Under bead : No Permitted Undercut : 0.79mm 이하 Height of Reinforcement Base Metal Thickness(mm) Max Height of

Reinforcement(mm) T ≤ 6 ≤ 1.5 6 < T ≤ 13 ≤ 3.0 13 < T ≤ 25 ≤ 4.0 T > 25 ≤ 5.0


3. Device

4. Type of Imperfection

5. Report :

5. Radiographic Test1. Application Code : ASME B31.3(High Pressure Piping)

2. Check Point - Internal & External Welding Defect

3. Authorized Personnel - Construction Team : Preparation & Requisition of RT - QA/QC Team : RFI Issue, RT Result input in WICS & Notification of RT Result

to Construction Team - NDE Subcontractor : Implement of NDE - SAIPEM * SONATRACH Inspector : RT Film Review

4. Device : Ir-192 Radiation Equipment & Developing Facility.

5. NDE Application (Piping Class Summary)

6. Report : Radiographic Examination Report(Form code: MDT.WL.CDQ.0141)

5.Piping Class Summary

Welding Class Piping Class NDE Application (%) Remarks

Class Ⅰ

A10K/1 A10N/1 A10U/1 A20K/11.Butt Weld: RT (100%),Ferrite Content(Diameter 별 , SAIPEM Inspec-tor 지정 )

2.Fillet Weld(Seal Welding) : PT or MT(100%), Root Pass 10% PT

3. Hardness Test: After PWHT

1.Stainless Pipe: PT

2. Carbon Pipe : MT(After PWHT)A32A/1 A34A/1 A90K/0 B10K/1

B10N/1 B20K/1 B90K/0 D10K/1

D10N/1 D11A/1 D12A/1 D20K/1

D32A/B D41A/1 D42A/1 D90K/0

D91A/1 D92A/1 E10K/1 E10N/1

E11A/1 E32A/1 E41A/1

Class Ⅱ

A10V/B A11A/1 A12A/1 A15A/A 1.Butt Weld: RT (10%),Ferrite Content(Diameter 별 , SAIPEM Inspec-tor 지정 )2.Fillet Weld(Seal Welding) : PT or MT(10%), Root Pass 10% PT3. Hardness Test: After PWHT

1.Stainless Pipe: PT

2. Carbon Pipe : MT(After PWHT)3. RT 10% : Welder, Line 별4. 최초 5 Point RT

A41A/1 A92A/1 B11A/1 B12A/1

B41A/1 B42A/B B91A/0

Class Ⅲ A80K/1 A80R/1 A82A/1Branch Line : PT

10%Fabrication

6. Hardness Test1. Application Code : ASME B31.3(High Pressure Piping)

2. Check Point - Measurement of Hardness Value by BHN/RC Method after PWHT. Carbon Steel : Max 238 BHN/RC

3. Authorized Personnel - Construction Team : Preparation & Requisition of Hardness Test - QA/QC Team : RFI Issue, Result input in WICS & Notification of Re-

sult to Construction Team - NDE Subcontractor : Implement of Hardness Test - SAIPEM * SONATRACH Inspector : Witness


5. Report : Hardness Examination Report(Form code: MDT.WL.CDQ.0431)

7. PMI1. Application Code : ASTM & ASME section Ⅱ

2. Check Point : Stainless Steel Pipe 용접부 Alloy 함량 Check.

3. Authorized Personnel - Construction Team : Preparation & Requisition of PMI - QA/QC Team : RFI Issue, Result input in WICS & Notification of Result

to Construction Team - NDE Subcontractor : Implement of PMI - SAIPEM * SONATRACH Inspector : Witness


5. Report: PMI Report(Form code: MDT.WL.CDQ.0102)

Electrode Cr Ni Mo

A312 TP304/304L

18.0 ~ 22.0 9.0 ~ 11.0 -

A312 TP316/316L

17.0 ~ 20.0 11.0 ~ 14.0 2.0 ~ 3.0

8. Hydrostatic Test1. Application Code: ASME B31.3(High Pressure Piping)

2. Check Point - Preparation of QC Document & AS Built DWG - Confirmation of Piping Work

3. Authorized Personnel - Construction Team : Preparation & Requisition of Hydro Test - QA/QC Team : RFI Issue, Result input in WICS & Notification of Re-

sult to Construction Team - SAIPEM & SONATRACH Inspector : Witness - ARH : Witness

4. Device : High Pressure Pump, Record, Temperature, Certificate of Water

5. Report : Inspection of Erected Line before Pressure Test(CDQ 0104) Piping Pressure Test(CDQ 0195)

9. Follow Chart

Fit-Up Inspection

Receiving Inspec-tion

Pre-Heating<25mm : 10℃, 대기온도 -

5℃ 이하 : 50℃ 이상 ≥25mm: 100~150℃

Tag Weld: ≤2 ½: 3Point2 ½~14: 4Point14 Over ; 6Point

In Process Inspection(Random-Report)

Ferrite Content Check(Stainless Steel-1’st Pass

Post Heat TreatmentLTCS & C.S: 30mm

Over(250℃, 30min Mini-

mum)

Design Temp(Lower than -20℃) : 32.mm

까지 용접봉 사용

Welding

Visual Inspection

Post Weld Heat Treat-ment

NDT

Hardness & PMI Check

Repair : Up to 2 회

Hydro Test

Amin Line : 100%LTCS & C.S : 20mm

Over

Documents

GNL3Z PJ PIPING INSPECTION