NFPS Offshore Compression Complexes Project COMP2

COMPANY Contract No.: LTC/C/NFP/5128/20

CONTRACTOR Project No.: 033734

Document Title

:

SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

COMPANY Document No.

: 200-20-CE-SPC-00020

Saipem Document No.

: 033734-B-D-30-SPM-MA-S-10003

Discipline

: CORROSION ENGINEERING

Document Type

: SPECIFICATION

Document Category/Class

: 1

Document Classification

: Internal

01 00 B

A

03-Jul-2023 13-Jun-2023 15-May-2023

25-Apr-2023

Approved for Construction Approved for Construction Issued for Approval

Hamed Elfiqy Hamed Elfiqy Hamed Elfiqy

Mihai Marius Mihai Marius Mihai Marius

C. Borghesan C. Borghesan C. Borghesan

Issued for Review

Hamed Elfiqy

Mihai Marius

C. Borghesan

REV.

DATE

DESCRIPTION OF REVISION

PREPARED BY

CHECKED BY

APPROVED BY

Saipem S.p.A.

THIS DOCUMENT IS PROPERTY OF QATARGAS. THIS DRAWING OR MATERIAL DESCRIBED THEREON MAY NOT BE COPIED OR DISCLOSED IN ANY FORM OR MEDIUM TO THIRD PARTIES, OR USED FOR OTHER THAN THE PURPOSE FOR WHICH IT HAS BEEN PROVIDED, IN WHOLE OR IN PART IN ANY MANNER EXCEPT AS EXPRESSLY PERMITTED BY QATARGAS.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

REVISION HISTORY

Revision

Date of Revision

Revision Description

A1

A

B

00

01

18-Apr-2023

25-Apr-2023

15-May-2023

13-Jun-2023

03-Jul-2023

Issued for Inter-Discipline Check

Issued for Review

Issued for Approval

Approved for Construction

Approved for Construction

HOLDS LIST

Hold No

Hold Description

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

Contents

1

INTRODUCTION … 5

1.1 Project Objective… 5

1.2 Project Scope … 5

2

DEFINITIONS AND ABBREVIATIONS … 7

2.1 Definitions … 7

2.2 Abbreviations … 9

3

REGULATIONS, CODES AND STANDARDS … 10

3.1 Company Documents … 10

3.2 Project Documents … 11

3.3 Contractor Documents … 11

3.4

International Codes and Regulations … 11

3.4.1 API–American Petroleum Institute … 11

3.4.2 ASME–American Society of Mechanical Engineers … 12

3.4.3 API – American Petroleum Institute … 12

3.4.4 ASTM – ASTM International (American Society of Testing and Materials) … 13

4

5

SCOPE AND PURPOSE OF DOCUMENT … 13

4.1 General … 13

PMI REQUIREMENTS … 14

5.1 General Requirements … 14

5.1.1 Extent of Verification … 14

5.1.2 PMI Program … 14

5.1.3 Performance … 15

5.1.4 Methods / Reports / Extent Of Testing … 15

5.1.5 Personnel and Procedures Review … 15

5.1.6 Mill Stockists … 15

5.1.7 Timing … 16

5.2 Specific Requirements … 16

5.2.1 100 Percent PMI … 16

5.2.2 Random Inspection Sampling … 16

5.2.3 Low Alloy and Stainless-Steel Bolting Materials … 17

5.2.4 Weld Material … 17

5.2.5 Longitudinally Welded Pipe / Fittings … 18

5.2.6 Alloy Heater Tubes … 18

5.2.7 Autogenous Welded Pipe / Fittings … 18

6

VERIFICATION METHODS … 18

6.1 Acceptable Methods … 18

6.2 Chemical Analysis-Referee Method … 19

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

6.3 Alternative Methods And Instruments … 19

6.4 Approval … 19

7

8

ACCEPTANCE CRITERIA … 19

REJECTION CRITERIA FOR EQUIPMENT AND PIPING … 19

8.1 Referee Method … 19

8.2 Unacceptable Material Component/Weld-Random PMI … 20

8.3 Unacceptable Material Components/ Filler Metal … 20

9

MARKING … 20

9.1 Marking For Unacceptable Tests… 20

9.2 Acceptable Verified Materials … 20

10 RECORDS OF VERIFICATION TESTING … 21

10.1 Shop Alloy Verification … 21

10.2 Construction Contractor Field Alloy Verification … 21

TABLES

Table 5-1 : Sample Size … 16 Table 10-1 : Elements of Common Alloys and Weld Metals Subject to PMI … 22

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

1

INTRODUCTION

The North Field is the world’s largest natural gas field and accounts for nearly all of the state of Qatar’s gas production. The reservoir pressure in the North Field has been declining due to continuous production since the early 1990s. The principal objective of the NFPS Project is to sustain the plateau from existing QG South Operation (RL Dry Gas, RGE Wet gas) and existing QG North Operation (QG1 & QG2) production areas by implementing an integrated and optimum investment program consisting of subsurface development, pressure drop reduction steps and compression. Refer to the figure below for a schematic of the North Field.

Qatargas Operating Company Limited is leading the development of the North Field Production Sustainability (NFPS) Project.

1.1 Project Objective

The objective of this Project includes:

• Sustain the Qatargas North Field Production Plateau by installing new Compression Complex facilities CP6S & CP7S in QG south with integration to the existing facilities under Investment #3 program

• Facility development shall be safe, high quality, reliable, maintainable, accessible,

operable, and efficient throughout their required life.

• Achieve standards of global excellence in Safety, Health, Environment, Security and

Quality performance.

1.2 Project Scope

The Project Scope includes detailed engineering, procurement, construction, transportation & installation, hook-up and commissioning, tie-in to EXISTING PROPERTY and provide support for start-up activities of the following facilities and provisions for future development. The WORK shall be following the specified regulations, codes, specifications and standards, achieves the specified performance, and is safe and fit

purpose in all respects.

for

Offshore

‐

‐

CP6S and CP7S Compression Complexes that are part of QG-S RGE facilities as follows:

• CP6S Compression Complex

• Compression Platform CP6S, Living Quarters LQ6S, Flare FL6S

• Bridges BR6S-2, BR6S-3, BR6S-4, BR6S-5

• Bridge linked Tie-in to RP6S

Production from existing wellheads (WHP6S & WHP10S) and new wellhead (WHP14S) are routed via riser platform RP6S to compression platform CP6S to boost pressure and export to onshore via two export lines through the existing WHP6S pipeline and a new 38” carbon steel looping trunkline from RP6S (installed by EPCOL). CP6S is bridge-linked to RP6S.

• CP7S Compression Complex

• Compression Platform CP7S, Living Quarters LQ7S, Flare FL7S

• Bridges BR7S-2, BR7S-3, BR7S-4, BR7S-5

• Bridge linked Tie-in to RP7S

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

CP7S shall receive production from existing wellheads (WHP5S & WHP7S) and new wellhead (WHP13S). There is only one export line for CP7S through the existing export pipeline from WHP7S. CP7S is bridge-linked to RP7S.

RGA Complex Destressing

Migration of the Electrical power source, Telecoms, Instrumentation and Control systems from WHPs and RPs hosted by RGA to the respective Compression Complexes listed below:

• WHP6S, WHP10S, WHP14S, RP6S and RP10S to CP6S Compression Complex

• WHP5S, WHP7S, WHP13S and RP7S to CP7S Compression Complex

Destressing of Telecoms, Instrumentation and Control system in RGA Complex Control Room, which would include decommissioning and removal of telecom system devices and equipment that would no longer be required post migration and destressing activity.

Onshore

An Onshore Collaborative Center (OCC) will be built under EPC-9, which will enable onshore based engineering teams to conduct full engineering surveillance of all the offshore facilities. The OCC Building will be located in Ras Laffan Industrial City (RLIC) within the Qatar Gas South Plot. MICC & Telecommunication, ELICS related scope will be performed in the OCC building.

Figure 1.2.1: NFPS Compression Project COMP2 Scope

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

2 DEFINITIONS AND ABBREVIATIONS

2.1 Definitions

Definition

Description

COMPANY

Qatargas Operating Company Limited.

CONTRACTOR

Saipem S.p.A.

DELIVERABLES

FACILITIES

MILESTONE

PROJECT

SITE

SUBCONTRACT

SUBCONTRACTOR

All products (drawings, equipment, services) which must be submitted by CONTRACTOR to COMPANY at times specified in the contract.

All machinery, apparatus, materials, articles, components, systems and items of all kinds to be designed, engineered, procured, manufactured, constructed, supplied, tested and permanently installed by CONTRACTOR at SITE in connection with the NFPS Project as further described in Exhibit 6. A reference event splitting a PROJECT activity for progress measurement purpose.

fabricated,

NFPS Offshore Compression Complexes Project COMP2

(i) any area where Engineering, Procurement, Fabrication of the FACILITIES related to the CP6S and CP7S Compression Complexes are being carried out and (ii) the area offshore required for installation of the FACILITIES in the State of Qatar.

Contract signed by SUBCONTRACTOR and CONTRACTOR for the performance of a certain portion of the WORK within the Project.

Any organization selected and awarded by CONTRACTOR to supply a certain Project materials or equipment or whom a part of the WORK has been Subcontracted.

WORK

Scope of Work defined in the CONTRACT.

WORK PACKAGE

VENDOR

lowest manageable and convenient

The subdivision.

level

in each WBS

The person, group, or organization responsible for the design, the Equipment/ manufacture, Material.

load-out/shipping of

testing, and

THIRD PARTY

Third Party appointed by CONTRACTOR

VENDOR (SUPPLIER)

SUB-VENDOR(SUB-SUPPLIER)

SHALL

SHOULD

A party who is responsible to manufacture and supply equipment and/or services A party who is responsible to manufacture and supply equipment and/or services under responsibility of main VENDOR

The word “Shall” is to be understood as a mandatory requirement.

The word “Should” is to be understood as strongly recommended.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

MAY

CRITICAL

The word “May” is to be understood as an action to be undertaken at CONTRACTOR / COMPANY ‘s discretion and upon evaluation of a review of the circumstances of the issue in question

Those components whose integrity is essential to the performance and safe COMPONENToperation of the system.

INSPECTION LOT

A group of like items from a single Manufacturer from which a random inspection sample is taken for testing

MATERIAL TEST REPORT

PMI Procedure

PMI Program

Random Inspection Sample

in compliance with

the products supplied are

Documents issued by manufacturer that provides test results and declares the requirements of the PO. The test unit and the tests to be carried out are defined by the product specification, the official regulation,and corresponding rules and/or the PO. The documentis validated by the Manufacturer’s Authorized Inspection Representative, independent of manufacturing department, and may or not be tested and/or witnessed by an independent third party A procedure is defined as a specified series of actions, acts, or operations that have to be implemented in a specific order to continuously obtain the same circumstances. It shall include a sequence of activities, tasks, steps, decisions, calculations, and processes that when undertaken in the sequence prescribed shall produce the desired PMI analysis.

the same PMI results under

A detailed set of instructions defining the order of precedence to be followed for the successful execution of a PMI Plan. The program shall include the structure, process, and procedure to control operations, manage change, and define how, when, and PMI is to be employed for compliance with the program objectives. One or more items selected at random that shall represent the general chemistry of the inspection lot.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

2.2 Abbreviations

Code

Definition

AV

CMTR

Acceptable Verified

Certified Material Test Report

CRA

Corrosion resistant alloy

DN

DOC

EPC

FEED

ISO

MTR

NFPA

NPS

OES

PMI

POC

PO

QG

RGE

RTJ

XRF

WPS

Nominal Diameter

Doha Operating Center

Engineering Procurement and Construction

Front End Engineering Design

International Organization for Standardization

Material Test Reports

National Fire Protection Association

Nominal Pipe Size

Optical Emission Spectrometry

Positive Material Identification

Perth Operating Center

Purchase Order

Qatargas Company Limited

RasGas Wet Gas Asset

Ring Type Joint

X Ray Fluorescence

Welding Procedure Specification

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

3 REGULATIONS, CODES AND STANDARDS

In general, all design activities shall confirm to legal and statutory regulations and recognized industry best practices. Conflict among applicable specification and / or codes shall be brought to the attention of the COMPANY for resolution. COMPANY decision shall be final and shall be implemented. The latest editions of codes and specification effective as on date of contract/PO shall be followed.

In general, the order of precedence shall be followed:

a) Qatari Governmental and Regulatory Requirements

b) COMPANY Procedures, Policies and Standards (Exhibit 5 Appendix I)

c) Project Specifications.

d) Industry Codes and Standards

e) COMPANY and CONTRACTOR’s Lessons Learned

If CONTRACTOR/SUBCONTRACTOR deems any deviations from the specifications will result in significant project cost and schedule saving, proposal to such deviations shall be submitted to COMPANY for review and approval. CONTRACTOR/SUBCONTRACTOR shall not proceed with any deviation to the specifications without prior COMPANY approval.

The following is a list of relevant regulations, codes, standards, specification, Company documents that shall be considered for the Project in the order of precedence listed above.

3.1 Company Documents

S. No

Document Number

Title

PRJ-PJL-PRC-004_07

Facilities Engineering and Vendor Document Numbering Procedure

200-20-QM-PRC-00098 Quality Assurance Requirements for Suppliers

200-20-QM-PRC-00099 Quality Control Requirements for Suppliers

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

3.2 Project Documents

S. No

Document Number

Title

1. 200-20-CE-SPC-00014

2. 200-20-CE-SPC-00019

3. 200-20-CE-SPC-00018

4. 200-20-ME-SPC-00017

5. 200-20-ME-SPC-00012

6. 200-20-PI-SPC-00015

MATERIAL CORROSION REQUIREMENT IN SOUR SERVICE SYSTEM FOR CP6S AND CP7S COMPLEXES PIPING WELDING AND NDE SPECIFICATION FOR CP6S AND CP7S COMPLEXES CRA WELD OVERLAY PIPING FOR MATERIALS SPECIFICATION FOR CP6S AND CP7S COMPLEXES SPECIFICATION FOR PRESSURE VESSELS FOR CP6S AND CP7S COMPLEXES GENERAL SPECIFICATION FOR PACKAGED EQUIPMENT AND CP7S FOR CP6S COMPLEXES PIPING MATERIAL SPECIFICATION FOR CP6S AND CP7S COMPEXES

3.3 Contractor Documents

S. No

Document Number

Title

N/A

3.4

International Codes and Regulations

3.4.1 API–American Petroleum Institute

S. No DOCUMENT NO.

DOCUMENT TITLE

ASTM A 751, Edition

2021

ASTM D 129 Edition

2018

ASTM D 808 Edition

2021

ASTM E 352 Edition

2018

ASTM E 353 Edition

2019

ASTM E 354 Edition

2021

Standard Test Methods, Practices, and Terminology Chemical Analysis of Steel Products Standard Test Method for Sulfur in Petroleum Products (General High Pressure Decomposition Device Method)

for

Standard Test Method for Chlorine in New and Used Petroleum Products (Bomb Method) Standard Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Alloy Steels Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium Nickel- Iron Alloys for Chemical Analysis of High- Standard Test Methods Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

ASTM E 572 Edition

2021

ASTM E 1086 Edition 2022

ASTM E 322 Edition

2012

10. ASTM E 478 Edition

2017

Standard Test Method for Analysis of Stainless and Alloy Steels by Wavelength Dispersive X-ray Fluorescence Spectrometry Standard Test Method for Atomic Emission Vacuum Spectrometric Analysis of Stainless Steel by Point-to-Plane Excitation Technique Standard Test method for X-Ray Emission Spectrometric Analysis of Low Alloy Steels and Cast Irons Standard Test Method for Chemical Analysis of Copper Alloys

11. ASTM E 751 Edition

2021

Standard Practice for Acoustic Emission Monitoring During Resistance Spot-Welding

3.4.2 ASME–American Society of Mechanical Engineers

S. No DOCUMENT NO.

DOCUMENT TITLE

ASME B31.3 Edition 2022

Process Piping

2. ASME B31.8 Edition

2022 ASME SEC II Part A Edition 2021

Gas Transmission and Distribution Piping Systems

BPVC Section II A – Materials Part A - Ferrous Material Specifications

ASME SEC II Part B Edition 2021

BPVC Section II B – Materials Part B - NonFerrous Material Specifications

5. ASME SEC II Part C Edition 2021

Specifications for welding Rods, Electrodes, and filler metals

6. ASME SEC VIII

BPVC Section VIII-Rules for Construction of Pressure Vessels

3.4.3 API – American Petroleum Institute

S. No DOCUMENT NO.

DOCUMENT TITLE

1. API RP 578 Edition

2018

Recommended Practice For Material Verification Program For New And Existing Alloy Piping Systems

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

3.4.4 ASTM – ASTM International (American Society of Testing and Materials)

S. No

DOCUMENT NO.

DOCUMENT TITLE

1. ASTM A 751 Edition 2021

Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

2. ASTM A 352 / 352M- Edition

2021

Specification for Steel Castings, Ferritic and Martensitic, For Pressure Containing Parts Suitable For Low Temperature service

ASTM D 129 Edition 2018

Standard Test Method for Sulfur in Petroleum Products (General High Pressure Decomposition Device Method)

4. ASTM D 808 Edition 2016

Standard Test Method for Chlorine in New and Used Petroleum Products (Bomb Method)

5. ASTM E 353 Edition 2019

6. ASTM E 354 Edition 2021

7. ASTM E 572 Edition 2021

8. ASTM E 1086 Edition 2022

Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium Nickel-Iron Alloys

Standard Test Methods for Chemical Analysis of High- Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys

Standard Test Method for Analysis of Stainless and Alloy Steels by Wavelength Dispersive X-ray Fluorescence Spectrometry

Standard Test Method for Atomic Emission Vacuum Spectrometric Analysis of Stainless Steel by Point-to- Plane Excitation Technique

4 SCOPE AND PURPOSE OF DOCUMENT

4.1 General

1. The scope and purpose of this specification is to verify that the nominal composition of specified

material and consumables is compliant to Specification & Drawing.

2. This specification is applicable to all exotic materials and consumables that may be supplied, Novated by COMPANY, purchased, VENDOR manufactured provided goods, SUBCONTRACTOR supplied or verifying that they are correctly documented.

3. This specification is applicable to any sites associated to the contract / PO scope, whether onshore,

offshore, VENDOR or SUBCONTRACTOR’s premises.

4. The process of Positive Material Identification (PMI) enables a component’s material grade or

chemical analysis to be confirmed in-situ using portable analytic equipment.

5. The purpose of PMI is to ensure that the nominal composition of the material specified has been correctly supplied and documented. For each grade of material tested, analysis is limited to the elements listed in Table 10-1.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

It is not the intention of the PMI test to generate an analysis to be compared with that on the product Material Test Reports (MTR). MTR (including those certified by a third party) shall not be considered a substitute for PMI and PMI shall not be a substitute for MTR.

7. This Specification addresses fabrication of new low alloy, alloy, stainless steel, and CRA equipment and piping. It is intended for use on pressure-containing alloy components for new equipment and piping.

8. Carbon steel is not included as part of this document and does not require PMI.

9. The requirements for conducting PMI tests on alloy materials shall be in accordance with

requirements of this Specification, unless superseded by more stringent local regulations.

10. This Specification covers the extent of verification, CONTRACTOR & COMPANY approved testing

methods, acceptance/rejection criteria, marking, and documentation requirements for PMI.

11. All PMI activities indicated in this specification shall be captured in the Quality Control activities

from Suppliers, Manufacturers and Fabricators.

5 PMI REQUIREMENTS

5.1 General Requirements

1. PMI and other criteria covered by this Specification shall meet or exceed the requirements of any codes referenced herein or in the Contract / PO documents. Any such conflict between the requirements of this Specification and related codes, standards, drawings, Contract documents, etc., shall be referred to CONTRACTOR & COMPANY for written clarification and resolution prior to fabrication.

2. SUBCONTRACTOR/VENDOR/CONTRACTOR shall not make any assumptions regarding

information not furnished by COMPANY.

5.1.1 Extent of Verification

1. A written PMI Program indicating the extent of PMI testing to be conducted during the construction of new equipment and piping systems shall be formulated and submitted for approval. The program shall include requirements for ensuring PMI in accordance with this Specification.

2. Extent of Verification shall also include receipt of goods, and the following stages shall be

considered as applicable:

a) Material Supply

b) Material Receipt

c) Fabrication

d) Post Fabrication (Erection, Installation).

5.1.2 PMI Program

1. This Section covers piping fittings and components, fabricated equipment and alloy piping during

fabrication, either in the shop or the field.

2. This section indicates PMI test per lot, considering the below definition:

3. “Lot “means a specific identified portion of a batch after it has been made for traceability purposes.

In any case, separate batches within a lot would require testing as per the batch.

5. “Batch” means a specific quantity of material produced according to a single manufacturing

order during the same cycle of manufacture.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

5.1.3 Performance

PMI shall be performed by Material Manufacturer, Fabricator, Supplier (for example, mill stockist), or authorized third-party Representative.

is

the responsibility of SUBCONTRACTOR/VENDOR/CONTRACTOR

It implementation and conduct of the PMI Program is performed in accordance with this Specification.

to ensure

that

the

5.1.4 Methods / Reports / Extent Of Testing

The test methods outlined in this Specification are intended to identify the nominal composition of alloy materials and welds, and to verify that the nominal composition meets the material specification minimum requirements.

The accuracy shall be within +/- 10% of the certified value recorded on the check specimen for all elements to be analysed, as documented by COMPANY approved PMI procedure.

1. PMI testing shall record a value for each element listed in Table 10-1.

2. PMI using “Alloy Sort” or “Grade Identification” modes shall not be acceptable.

In accordance with Section 5.2.1 of this Specification, all critical pressure-containing, pressure- retaining, and pressure-controlling items and attachments welded to same or CRA equipment and piping (including heater tubes), or other critical piping or pressure-containing, pressure-retaining and pressure-controlling items and attachments welded to same components shall undergo 100% PMI of the sample population. This shall include welds of internal attachment to pressure parts.

4. SUBCONTRACTOR/VENDOR/ CONTRACTOR shall verify that all critical pressure-containing

components identified by COMPANY receive 100% PMI.

5. Unless specifically required in the PO or Contract, the carbon content for “L” or “H” grades of

stainless steel and Nickel alloy shall be verified from a review of the certified MTRs.

5.1.5 Personnel and Procedures Review

PMI personnel and procedures shall be as follows and subject to review and approval by COMPANY:

1. Fabricator, Supplier, or Agreed PMI Third party shall submit the PMI Procedures to COMPANY / CONTRACTOR for review, including complete descriptions of the methods and equipment to be used and personnel qualification procedures.

2. All Quality Inspectors or NDT technicians shall undergo a competency training either by a third party program or an internal program that ensures that the individual who conducts PMI testing shall demonstrate their ability, knowledge & skills to an adequate level.

3. Timely notice shall be given to CONTRACTOR/COMPANY for a PMI inspection as per their

approved procedure.

4. COMPANY / CONTRACTOR shall review the procedures and qualifications and witness sample alloy verification tests to confirm that the procedures, equipment, and personnel are capable of providing consistent and accurate results.

5. COMPANY / CONTRACTOR shall check procedures to ensure that positively identified materials

are traceable to the original MTR and heat number.

6. COMPANY or COMPANY Representative shall have the right to witness the performance of

any PMI test.

5.1.6 Mill Stockists

Except for bolting components (see requirements in Section 5.2.1), the extent of PMI verification from mill stockist shall be 100% of all alloy pressure-containing components.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

5.1.7 Timing

PMI shall be performed in a timely manner. It shall be in such time that the wrong material is prevented from being used in the fabrication of an identifiable assembly (e.g., a plate welded into a pressure vessel or pipe length welded into a spool).

PMI shall be detailed in the relevant ITP’s for any manufacturing and fabrication activities.

5.2 Specific Requirements

5.2.1 100 Percent PMI

The following components of the alloy groups listed in Table 10-1, require 100% PMI, unless specifically exempted in the Contract / PO:

1. Pressure-containing external components for pressure vessels, manifolds, wellheads and trees, tanks, or heat exchangers. Pressure-containing internal heads, flanges, and tube sheets for heat exchangers, heaters, and boilers.

2. Pressure-containing forgings such as nozzles, flanges, and “O-lets”

3. Pressure-containing castings or fabricated casings for pumps, compressors, manifolds, combustion

turbines, turbo-expanders and other process equipment

4. Pipe and fittings such as tees, elbows, reducers, and special pipe components, such as thermowells

and instrument manifolds

5. External valve components (bodies and bonnets) for valves in CRA material

6. Pressure-containing instrument housings in alloy systems, or housings with an ASME Design Pressure of Class 900 (Pressure Number [PN] 150) and higher (e.g., gauge glass housings, orifice meter tubes).

7. Alloy weld deposits joining pressure parts to pressure parts (i.e., for double-welded joints, both weld

caps, inside and outside)

8. Corrosion-resistant weld overlay or cladding.

9. PMI of welding consumables-at least one electrode or wire sample from each heat number and

size.

5.2.2 Random Inspection Sampling

The following components from the alloy groups listed in Table 10-1, require PMI to be performed on a random inspection sample. Unless otherwise specified below or in the approved PMI Program, the random inspection sample shall be as per below Table 5-1

Table 5-1 : Sample Size

Lot Size

Sample Size

5 or Less

100%

6 - 200

5 pieces or 5% (Whichever is Greater)

200

10 pieces or 3% (Whichever is Greater)

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

For items such as tubes, fasteners, bolts, and nuts, a reduced random inspection sample shall normally be acceptable, as specified in the approved PMI Program. If any piece from a random inspection sample is found to be unacceptable, then each piece of the lot shall be examined:

1. PMI of welding consumables-at least one electrode or wire sample from each inspection lot shall be PMI tested. The inspection lot shall include each diameter and heat. The remainder of the inspection lot shall be compared to the sample to ensure that color-coding and/or identification of the consumables is correct.

2. Tubes used in the fabrication of equipment such as heat exchangers, and condensers provided

that certified MTR is available.

3. Alloy fasteners (bolts and nuts), excluding Subsea. Subsea fasteners require 20% PMI

4. Coated bolts and nuts shall be PMI tested prior to coat application, No PMI is required after coating

5. Subsea internal valve components for valves exceeding NPS 2, including stems, shafts, bonnet

bolts, and gaskets require 20% PMI

6. External valve components (bodies and bonnets) for valves equal to or less than NPS 2.

7. Spiral-wound metallic gaskets.

Instrument tubing, when properly identified by paint stencil.

9. Compression type ferrules, fittings, and components (e.g., valves, filters, etc.).

10. Instrument air, seal oil, lube oil, hydraulic pipe and tubing, if the material is specifically identified for

these services.

11. Pressure-containing instrument housings in alloy systems or housings with a design pressure below

ASME Class 900 (PN 150) (e.g., gauge glass housings and orifice meter tubes).

12. Ring-Type Joint (RTJ) ring gaskets.

5.2.3 Low Alloy and Stainless-Steel Bolting Materials

All chromium (including B7/B7M, L7/L7M bolts and 2H/2HM, 7/7M nuts), Solid Inconel (UNS N06625 bolts and nuts) and stainless steel studs, bolts, nuts, and washers shall require a minimum of random PMI of each lot.

5.2.4 Weld Material

1. PMI of field and shop fabrication welds shall be performed as for the adjacent base metal.

2. When welding is required, one electrode or wire sample from each lot of weld rods to be used shall be positively identified. The remainder of the lot shall be compared to the sample to ensure that color-coding and identification of the wire and/or electrodes is correct.

3. Except for welds not amenable to PMI, such as tube-to-tube sheet welds, PMI verification shall also

be conducted in the shop or field on the deposited weld metal.

4. For piping, every “butt-weld” and all other types of pressure-containing welds shall require PMI.

5. For pressure vessels, each individual long-seam, girth, nozzle, and other pressure-containing,

pressure-retaining, or pressure-controlling welds shall be subject to PMI.

6. Fabrication operations shall be suspended, and COMPANY Materials or Welding Engineers shall be consulted in all cases where the use of an incorrect filler metal is discovered, or suspected.

7. Repair weldment shall be tested by PMI

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

5.2.5 Longitudinally Welded Pipe / Fittings

Longitudinally welded pipe and fittings produced by Pipe or Fitting Manufacturer require random PMI verification of 10% of each sample population or one PMI verification of each 60 m (200 ft.) length of total weld in the sample population, whichever is greater. The following are two examples:

1. 10 longitudinally welded pipes, each 6 m (20 ft.) in length, require that PMI verification be conducted

on one pipe length (10% of the sample population).

If 10 longitudinally welded pipes are each 12 m (40 ft.) in length, then PMI verification shall be conducted on 2 pipe lengths (120 m [400 ft.] total weld length divided by 60 m [200 ft.] = 2 pipe lengths).

5.2.6 Alloy Heater Tubes

In addition to PMI verification of heater tubes, shop and field welds on alloy heater tubes shall require 100% PMI verification.

5.2.7 Autogenous Welded Pipe / Fittings

Autogenous welded pipe and fittings shall require PMI verification of only the base metal composition.

6 VERIFICATION METHODS

The instruments or methods used for the examination shall be suitable for identifying the material by quantitative measurement of the major alloying elements required in the applicable material specification or Welding Procedure Specification (WPS).

6.1 Acceptable Methods

1. Portable alloy analysers using Optical Emission Spectrometry (OES) employing an electric arc are

not permitted.

Instruments used shall be of the X-Ray Fluorescence (XRF) type.

3. The instrument employed shall be capable of verifying the major alloy constituents of the material.

4. Procedures shall be submitted for review and approval and shall include the following:

5. Testing shall be performed according to Alloy Analyzer Manufacturer’s procedures.

6. Each analyser shall be calibrated according to Manufacturer’s requirements. At the beginning and end of each shift, the instrument shall be checked against a known standard for each alloy type. Inspections during the shift shall use the same method to be used during the shift. This check shall be performed under environmental conditions similar to the test location.

7. Persons performing the PMI shall demonstrate their capabilities to the satisfaction of CONTRACTOR / COMPANY. Qualifications of Tester, including training and experience, shall be included in the PMI Program.

8. PMI shall be conducted using equipment approved by COMPANY. The following are requirements

to obtain approval:

a) Equipment shall be of the XRF type and shall be suitable for analysing the elements listed in Table 10-1, of this Specification per test methods listed in API RP 578 Paragraphs 5.2.1, “PMI Test Method, and General” and 5.2.2, “PMI Test Methods, Portable X-ray Fluorescence.”

b) The specific device (manufacturer, model number) shall be identified within the submitted PMI

procedure.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

c) Equipment shall have demonstrated, per this Section, an accuracy of +/-10% of the certified value recorded on the check specimen for all elements to be analysed. This shall be documented within the submitted procedure with example data results for alloy element combinations required for the proposed job.

9. Laboratories using XRF spectrometry, optical spectroscopy, or wet chemical analysis may be used

for verification in cases where test results by other methods differ from Mill Certificate data.

6.2 Chemical Analysis-Referee Method

In cases where test results by other methods differ from the MTR, the chemical analysis may be checked by a “referee” method. In such cases, Purchaser-approved materials analytical laboratories using Calibrated XRF spectrometry, optical emissions spectroscopy, or wet chemical analysis, in accordance with the ASTM Standards referenced in Section 3.2.5 may be used for verification.

6.3 Alternative Methods And Instruments

Alternative analytical methods or instruments other than those listed above shall be utilized only if they have been previously reviewed and approved by CONTRACTOR and COMPANY.

6.4 Approval

1. Material Manufacturer, Supplier, Subcontractor or Fabricator performing the verification shall submit procedures for CONTRACTOR approval, including sample removal (as applicable), identification, and traceability to original material.

2. COMPANY shall have the right to review all PMI procedures submitted to CONTRACTOR.

7 ACCEPTANCE CRITERIA

1. For all materials requiring PMI, the measured value of alloying elements shall be within +/-10% of the specified level or range in the applicable materials standards (example: for 316L, where the allowable molybdenum (Mo) range is 2.00%-3.00%, the measured value shall fall within the range 1.80%-3.30%).

2. Acceptance criteria for dissimilar metal alloy welds shall be such that the weld at least meets the nominal chemical composition requirements. The effects of dilution during deposition shall be taken into account for deposited (diluted) weld metal in a test specimen welded and witnessed by COMPANY prior to production PMI testing of dissimilar weld metal welds.

3. For weld metal overlay, PMI results shall meet the requirements specified in the relevant filler metal specification/designation and the requirements of 200-20-CE-SPC-00018, which ever more stringent, within +/-10% of the required minimum and maximum values.

8 REJECTION CRITERIA FOR EQUIPMENT AND PIPING

8.1 Referee Method

If the PMI test results fall outside the permitted range, using the instruments described in Section 6.1 of this Specification, then a quantitative check analysis shall be performed through an independent testing laboratory, using the “referee” method referenced by the material specification.

If no referee method is referenced, then an appropriate method of chemical analysis, as specified in Section 6.1 of this Specification, shall be used. Results of this analysis shall govern and be submitted along with a table listing the major/primary elements for all alloys to be PMI evaluated for CONTRACTOR and COMPANY approval. As a minimum, the table shall comply with Table 10-1.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

8.2 Unacceptable Material Component/Weld-Random PMI

If any material component or weld is found to be unacceptable, then all other represented materials, components, or welds shall be considered suspect. Supplier has the following options:

1. Dispose of all those represented materials and components and replace them with new

components or filler metals (as applicable).

2. Perform 100% examination of the remainder of the represented materials, components, or welds,

and replace each item that fails the PMI check.

8.3 Unacceptable Material Components/ Filler Metal

When a shipment (lot) of components or filler metal is found to contain unacceptable items, all components or lots from same Supplier shall be 100% examined for the life of the project.

Supplier shall be responsible for segregating rejected items, and ensuring that they are properly identified to prevent their unauthorized reuse or removal.

9 MARKING

9.1 Marking For Unacceptable Tests

Materials, items, and welds that are found to be unacceptable during verification testing shall be marked immediately with a circled red cross (⊕), pending resolution, in accordance with project requirements.

Marking material for failed components shall meet the requirements of this Specification.

9.2 Acceptable Verified Materials

1. All verified materials with an acceptable analysis shall be marked with the letters “AV” and the grade of material using a certified low-stress stamp or vibro-etched (as approved by COMPANY). The marking shall be placed as follows:

a) Pipe: Two marks, 180 degrees apart, 75 mm (3 in.) from each end of each length on the outer surface of the pipe. This marking shall be in addition to the requirements of this Specification.

b) Welds: Adjacent to Welder’s mark on the weld or at weld button (stop/start locations). Welds on tubes in heat transfer shall not be stamped but shall be marked by either stencilling or vibro- etching.

c) Fittings and forgings: Adjacent to Supplier markings.

d) Valves: Adjacent to Supplier’s markings on bodies and other pressure parts.

e) Plates: Adjacent to the heat numbers.

f) Castings: Adjacent to Supplier’s markings and heat numbers.

g) Tubes for heat transfer service: Stencilled, not stamped, 300 mm (12 in.) from each end:

I)

II)

III)

The marking shall be done with a water-insoluble material that contains no harmful substance, such as metallic pigments (aluminum [Al], lead [Pb], and zinc [Zn]), sulfur, or chlorides, that would attack or harmfully affect austenitic or nickel alloy steels at ambient or elevated temperatures.

The chloride and sulfur content of water insoluble materials shall be limited to 1% or less as determined by ASTM D 808 and ASTM D 129, respectively.

Supplier shall submit an analysis of the marking material to Purchaser to demonstrate, by chemical analysis and history of use, that the marking material meets the requirements

h) Bolting: On one end.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

i) Nuts: On one flat.

If the material may be damaged or cannot otherwise be stamped, then vibro-etching or color-coding shall be applied in conjunction with Supplier’s standards and noted on the PMI verification reports.

3. When heat treating is performed after material verification, the identification marking shall be

recognizable after the heat treatments.

4. When an alloy pipe or plate is cut after PMI testing and marking, the marking shall be transferred

onto the unmarked section as described in this Section.

10 RECORDS OF VERIFICATION TESTING

10.1 Shop Alloy Verification

1. A log shall be kept to identify each component that has been alloy verified and shall include the results of the testing. A log form (with details on content) shall be included in the PMI procedure.

2. Test results shall include measured percentage of alloying elements, accepted, rejected, rejected

but accepted based on dependent chemical analysis, etc.

3. The log shall identify each component to an individual shop-fabricated equipment item, assembly,

line number, etc.

4. Each Fabricator shall develop a detailed recording/logging procedure for COMPANY

approval.

10.2 Construction Contractor Field Alloy Verification

1. Construction CONTRACTOR/SUB-CONTRACTOR shall establish the proposed test logging and identification, warehousing, and distribution control procedures for all components requiring alloy verification testing onsite (weld bulk piping components, fittings, valves, gaskets, deposited weld metal, etc.).

2. Shop-fabricated alloy equipment or assemblies that have been alloy verified in Supplier’s shop need not be re-verified in the field. However, Construction CONTRACTOR/SUBCONTRACTOR shall keep and made available Supplier’s report of alloy verification. Material certifications are not allowed as substitutes.

3. All field welds and any additional materials and welds made to modify prefabricated assemblies

shall also be alloy verified.

Company No._Rev. 200-20-CE-SPC-00020_01

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NFPS Offshore Compression Complexes Project COMP2 SPECIFICATION FOR POSITIVE MATERIAL IDENTIFICATION (PMI) FOR CP6S AND CP7S COMPLEXES

Table 10-1 : Elements of Common Alloys and Weld Metals Subject to PMI

Generic Type

Designation

4130 4140 1 ¼ Cr- ½ Mo 2 ¼ Cr-1 Mo 2 ¼ Cr-1 Mo-v 8630 3 ½ Ni 9 Ni 13 Cr Weldable 13Cr 13 Cr 4 Ni Super 13Cr

17-4 PH SS 304 SS 304L SS 316 / 317 SS 316L / 317L SS 904L SS 6Mo 22 Cr Duplex SS 25 Cr Duplex SS

Alloy K-500 Alloy 625 Alloy 718 Alloy 825 Alloy 800H Alloy C-276 CuNi 90-10 NiAl Bronze Grade 2 Grade 5

Low Alloy Steel

Martensitic/ Ferritic SS

Austenitic SS

Duplex SS

Nickel-Alloys

Copper Alloys

Titanium

UNS No. (Examples)

G41300 G41400 K11597, K11572 K21590 K31835 G86300 K31918 K81340 S41000 S41008, S40500 S41500 S41425, S41426, S41427 S17400 S30400 S30403 S31600 / S31700 S31603 / S31703 N08904 S31254, N08926 S31803, S32205 S32550, S32750, S32760 N05500 N06625 N07718 N08825 N08810 N10276 C70600 C95800 R50400 R56400

Elements to be Tested (3)

Cr      

   

        

     

Ni

  

 

        

       

Mo Other (1)      

  V

V (2)



     

    

C

Cu

C

C Cu Cu

Cu Nb (4) Nb Cu C

Al, Cu Ti, V Ti, V

Notes: (1) PMI is required for the elements in this column. a)- C content to be checked only when and as required by Para 5.1.4 item 5

(2) The PMI test is intended to confirm the material is not Vanadium (V) enhanced.

(3) Only report on elements identified by this Table (1). Do not report other elements.

(4) For Overlay Fe content shall be reported and the acceptance criteria is max 5%

Company No._Rev. 200-20-CE-SPC-00020_01

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Project: Q-21699 - Saipem COMP2 Folder: Material, Painting, Insulation