Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
COMPANY Contract No.: LTC/C/NFP/5129/20 CONTRACTOR Project No.: 033764
ASSET
: NFPS
Document Title
:
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
COMPANY Document No.
:
200-20-PI-SPC-00046
CONTRACTOR Document No.
:
033764-E-D00-18-SPM-TB-S-00014
Discipline
: PIPING
Document Type
: SPECIFICATION
Document Category/Class
:
1
Document Classification
:
Internal
00 28-APR-2025 Approved for Construction
B
27-FEB-2025
Issued for Approval
Pranav Pandurkar Pranav Pandurkar Piping Material Engineer
A
07-NOV-2024
Issued for Review
Vikas Kumar
28-APR-2025
28-APR-2025
Suresh Gopalakrishnan Suresh Gopalakrishnan Lead Piping Material Engineer Suresh Gopalakrishnan
Ravin George
Ravin George
Piping Lead
Ravin George
REV.
DATE
DESCRIPTION OF REVISION
PREPARED BY
REVIEWED BY
APPROVED BY
Saipem S.p.A
THIS DOCUMENT IS PROPERTY OF QatarEnergy LNG. 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 QatarEnergy LNG.
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Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
REVISION HISTORY
Revision
Date
Revision Description
A1
A
01-NOV-2024
Issued for Inter-Discipline Check
07-NOV-2024
Issued for Review
B
27-FEB-2025
00
28-APR-2025
Issued for Approval Clauses revised as below – Clause 3.3 & 3.4 – Page 10 Clause 5.1.5 – Page 14 Clause 5.1.18, 5.2 & 6.1.3 – Page 16 Clause 6.2, 6.4.1 & 6.5 – Page 17 Clause 6.6, 7.1.2, 8.1.2 & 8.1.3 – Page 18 Clause 10.1.1 – Page 19 Approved for Construction Clauses revised as below – Clause 3.5.3 – Page 12
HOLDS LIST
Hold No
Hold Description
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Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
TABLE OF CONTENTS
1
1.1
1.2
2
2.1
2.2
3
3.1
3.2
3.3
3.4
3.5
4
INTRODUCTION … 4
Project Objective … 4
Project Scope … 4
DEFINITIONS AND ABBREVIATIONS … 7
Definitions … 7
Abbreviations … 8
REGULATIONS, CODES AND STANDARDS … 9
Order of Precedence … 9
Company References … 9
Project Documents … 10
Company Inspection requirement … 10
APPLICABLE CODES & STANDARDS … 11
PURPOSE OF DOCUMENT … 14
4.1
General … 14
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.6
7
8
9
10
11
12
GENERAL REQUIREMENTS … 14
General … 14
Fasteners Coating … 16
Testing and Inspection … 16
General … 16
Hardness Testing … 17
Impact Testing … 17
Inspection … 17
Heat Treatment … 17
Tensile Test … 18
POSITIVE MATERIAL IDENTIFICATION (PMI) … 18
MARKING AND TRACEABILITY … 18
CERTIFICATION … 19
HANDLING, PACKING, PRESERVATION AND STORAGE … 19
DOCUMENTATION … 19
NON-COMPLIANCE / DEVIATION:… 20
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Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
1
INTRODUCTION
The North Field is the world’s largest natural gas field and accounts for nearly all the State of Qatar’s gas production. The principal objective of the NFPS projects is to sustain plateau from existing QatarEnergy LNG Operation – S1, S2, S3, N1 and N2, production areas by implementing an integrated and optimum investment program consisting of subsurface development, pressure drop reduction steps and compression.
NFPS projects comprise 3 main investment programs:
- Investment #1: Drilling and Associated Facilities [WHP12S/ WHP13S/ WHP14S/
WHP12N/ WHP13N]
- Investment #2: Trunk line Looping and Intra-field pipeline looping [32” PL1LN, 32”
PL1LS, 38”PL610LS]
- Investment #3: Compression Complexes and associated facilities [Phase 1 CP6S & CP7S; Phase 2: CP8S & CP4N; Phase 3: CP4S & CP6N Phase 4: CP1S & CP1N]
Drilling and Looping, Investments #1 and #2, projects are in execution phase and are being executed as I1P1, EPCOL Projects except for WHP13N, which will be part of NFPS Compression Projects execution which compromises total up to 9 COMPs.
1.1 Project Objective
The objective of this Project includes:
• Achieve standards of global excellence in Safety, Health, Environment, Security and
Quality performance.
• Sustain the Qatarenergy LNG North Field Production Plateau by installing new RPs and one WHPs to support new Compression Complex facilities CP6S & CP7S and pre-installed facilities for future Compression Complex facilities including but not limited to CP4N & CP8S tie-in 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.
1.2 Project Scope
The Project Scope includes detailed engineering, procurement, construction, brownfield modifications, 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‐for‐ purpose in all respects.
Facilities - 1A
• RP5S RP with 2 x 28” CRA clad pipelines to RP7S and 2 subsea composite Cables
and associated J tubes from RP7S to RP5S & from CP7S to WHP13S.
• New Fuel Gas 8” CRA Spur-lines and flanged risers from Subsea skid to RP7S
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
• Hook-up and brownfield modification at WHP5S/RP5S bridge connection & WHP13S/CP7S Composite cable tie-in and E&I integration including RGA Control modification
• Pipeline decommissioning of 28” CS PL5 including associated demolition work at
WHP5S
Facilities - 2A
• RP6N RP with 1x28” CRA clad pipeline to WHP13N, 2 Subsea composite cables and
associated J tubes from WHP12N to RP4N and RP6N to WHP13N. • New fuel gas spur-line and flanged riser from subsea skid to RP6N • WHP13N Topside • Hook-up and brownfield modification at WHP6N/RP6N, RP4N- HPU-Umbilical and tie- in, WHP12N-new J tube installation, E&I migration, WHP6N/RP4N/WHP4N-E&I migration (Pre-CP4N), WHP13N and RP6N interconnection to NFB.
Facilities - 3A
• RP9S RP with 1x28” CRA clad pipeline to RP4S, • Hook-up and brownfield modification at RP4S/WHP9S, Modifications to integrate
RP9S to the RGA control network.
• Pipeline decommissioning of 28” PL9 to WYE on existing 38” trunkline PL49including
associated demolition work at WHP9S.
Facilities - 1B
• New fuel gas spur-line and flanged riser from subsea skid to RP4N • Fiber Optic Cable from RP6N to onshore LFP East, RP6N to RP4N and RP6N to LQ6S. • Hook-up and brownfield modification at RP6N Composite and FO Tie-ins NFB-PU (East)- FO Tie-in
(East)/BVS
Power & Control modifications, LQ6S/LFP Controls/Telecoms Integration
Facilities - 2B
• RP5N RP with 2 x 28” CRA clad pipelines to RP4N, 1 x 28” CRA clad pipeline to RP6N and 2 subsea composite Cables and associated J tubes from WHP12N to RP5N & from RP6N to RP5N.
• Hook-up and brownfield modification at WHP5N- RP5N Bridge connection, WHP12N Composite cable tie-in, RP4N Intrafield pipeline Hook up PL54 N/LN and E&I integration including NFB-PU Power & Control modifications
• Pipeline decommissioning of 2 x 16” PL56/PL54 Subsea Spur line from WHP5N to
reducing barred tee in subsea tie-in skid on PL6 / PL4.
Facilities - 3B
• 2 subsea composite Cables from RP4S to RP9S & from RP4S to WHP12S (with J-
tube)
• New Fuel Gas 8” CRA Spur-lines and flanged risers from Subsea skid to RP4S • Hook-up and brownfield modification at WHP12S/ RP9S/ RP4S Composite cable tie-
in, Spurline riser installation at RP4S RGA Power & Control modifications.
Facilities - 4B
• 1 subsea composite Cable from CP8S to RP11S (or from RP8S to RP11S as Option).
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
• New Fuel Gas 8” CRA Spur-line and flanged riser from Subsea skid to RP8S. • Hook-up and brownfield modification at WHP8S/ WHP11S for Test separator Internal Upgrade and MEG system modification, Spur lines, Power & Control Tie-ins on RP8S, RP11S/WHP11S-Tie-in (Power and Control), RGA Power & Control modifications.
Facilities - 5B
• 2 subsea composite Cables from RT2 to WHP3S & from RT2 to WHP2S (with J-tube)
and FO Cable from RT2 to Barzan WHP1.
• New Fuel Gas 8” CRA Spur-line and flanged riser from Subsea skid to RT2 • Hook-up and brownfield modification at BRZ-WHP1 - FO cable tie-in, WHP2S/ WHP3S/ RT&RT2 Composite cable tie-in and associated modification, RGA Power & Control modifications.
Facilities - 6B
• RP3S RP with 1x24” CRA clad pipeline to RT2 with Stalk on risers, • Hook-up and brownfield modification at RT2 for 24” Intrafield pipeline and Composite/FO cable Hook-up, WHP3S for Production diversion and Utilities, Power and ICSS Hook-up, WHP2S for Composite Cable Tie-ins and Power & Control Integration RGA Power & Control modifications. topside existing and
In-situ abandonment of existing Topside/subsea Composite Cables RT-WHP2S, RT-WHP3S, Topside/Subsea FO cable RT-BRXWHP1.
• Decommissioning at
Figure 1.2.1: NFPS Compression Project COMP3 Scope
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
2
DEFINITIONS AND ABBREVIATIONS
2.1
Definitions
Definition
Description
COMPANY
QatarEnergy LNG.
CONTRACTOR
Saipem S.p.A.
DELIVERABLES
FACILITIES
MILESTONE
PROJECT
SITE
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.
fabricated,
A reference event splitting a PROJECT activity for progress measurement purpose.
COMP3 - NFPS Offshore Riser/Wellhead Platform & Intrafield Pipelines Project
(i) any area where Engineering, Procurement, Fabrication of the FACILITIES are being carried out and (ii) the area offshore required for installation of the FACILITIES in the State of Qatar
SUBCONTRACT
Contract signed by SUBCONTRACTOR and CONTRACTOR for the performance of a certain portion of the WORK within the Project.
SUBCONTRACTOR
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
Refer to article 2 of CONTRACT AGREEMENT.
WORK PACKAGE
The lowest manageable and convenient level in each WBS subdivision.
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
2.2
Abbreviations
Code
Definition
AISI
API
ASME
ASTM
CMTR
CRA
CSCC
CTR
DN
EPC
H2S
HB
HRB
HRC
IDC
ISO
ISPM
ITP
LWN
NACE
NFPA
NFPS
NPS
American Iron and Steel Institute
American Petroleum Institute
American Society of Mechanical Engineers
American Society for Testing Materials
Certified Material Test Report
Corrosion-Resistant Alloy
Chloride Stress Corrosion Cracking
Crack Thickness Ratio
Nominal Diameter
Engineering Procurement and Construction
Hydrogen Sulfide
Hardness Brinell
Hardness Rockwell B
Hardness Rockwell C
Inter-Discipline Check
International Organization for Standardization
International Standard for phytosanitary measure
Inspection and Test Plan
Long Weld Neck
National Association of Corrosion Engineering
National Fire Protection Association
North Field Production Sustainability
Nominal Pipe Size
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
Code
Definition
PMI
ppm
QCP
Positive Material Identification
Parts per million
Quality Control Program
QELNG
QatarEnergy LNG
RF
RTJ
SCC
SMYS
SSPC
UNS
Raised Face
Ring Type Joint
Stress Corrosion Cracking
Specified Minimum Yield Strength
Society for protective Coating
Unified Numbering System for Metals and Alloys
3
REGULATIONS, CODES AND STANDARDS
3.1
Order of Precedence
In general, the order of precedence shall be as follows:
a) Qatari Governmental and Regulatory Requirements b) COMPANY Policies and Procedures c) Project Specifications d) Industry Codes and Standards e) COMPANY and CONTRACTOR’S lessons learned
If CONTRACTOR / VENDOR 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 / VENDOR shall not proceed with any deviation to the Specifications without prior COMPANY APPROVAL.
3.2
Company References
S. No
Document Number
Title
LTC/C/NFP/5129/20
Contract Agreement
EXHIBIT 5
Project Instructions
PRJ-PJL-PRC-004
Facilities Engineering and Vendor Document Numbering Procedure
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
S. No
Document Number
Title
PRJ-PJL-PRC-005
Facilities, System and Unit Number Codes and Descriptions Procedure
PRJ-PJL-PRC-006
Project Information Handover Procedure
Facilities Documentation Metadata Requirements Procedure
Project Information Handover, Verification and Acceptance Procedure
PRJ-PJL-PRC-048
PRJ-PJL-PRC-049
3.3
Project Documents
S. No
Document Number
Title
COMP3-SPM-PE-PRC-00003 Document Numbering Procedure
200-20-CE-SPC-00034
Specification For Positive Material Identification (PMI) for COMP3 Project
COMP3-SPM-CC-PRC-00002
Material Management and Traceability Control Procedure
COMP3-SPM-QM-PRC-00002 Source Inspection Procedure
200-20-CE-SPC-00027
200-20-CE-SPC-00025
COMP3-SPM-PO-PRC-00005
200-20-PI-SPC-00048
Specification for fixed facilities protective coating for COMP3 Project
Specification for Topsides Material & Corrosion Requirements for Sour Service for COMP3 Project
Handling, Storage, Packing & Preservation Procedure
Specification For Flanges and Hubs for COMP3 Project
3.4
Company Inspection requirement
S. No
Document Number
Title
COMP3-SPM-QM-PRC-00003 Project Quality Requirements for Suppliers
COMP3-SPM-QM-PLN-00001 Project Quality Plan
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
3.5
APPLICABLE CODES & STANDARDS
This section identifies the applicable international codes & standards to be used for the piping design of this project but not limited to those listed below. Latest edition shall be followed for all international codes and standards as on the effective date of CONTRACT award.
3.5.1 API–AMERICAN PETROLEUM INSTITUTE
API SPEC 6A
2018
Specification for Wellhead and Christmas Tree Equipment
API SPEC 6FB
2019
Specification for Fire Test for End Connections
API SPEC 20E
2020
Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries
3.5.2 ASME–AMERICAN SOCIETY OF MECHANICAL ENGINEERS
ASME B1.1
2024
ASME B1.20.1
2013
ASME B16.5
2020
ASME B16.47
2020
Unified Inch Screw Threads (UN and UNR Thread Form)
Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)
Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard
Large Diameter Steel flanges NPS 26 through NPS 60 Metric/Inch Standard
ASME B16.48
2020
Line Blanks
ASME B18.2.1
2012
ASME B18.2.2
2022
Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)
Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)
ASME B31.3
2022
Process Piping
ASME B31.8
2022
ASME SEC VIII Div 1 2023
Gas Transmission and Distribution Piping Systems
BPVC Section VIII - Rules for Construction of Pressure Vessels - Division 1
ASME PCC-1
2022
Guidelines for Pressure Boundary Bolted Flange Joint Assembly
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
3.5.3 ASTM-American Society for Testing and Material
ASTM A193 / A193M Apr 2024
ASTM A194 / A194M
Jun 2024
ASTM A320 / A320M Apr 2024
ASTM A700
Nov 2019
ASTM A962 / A962M
Jun 2023
ASTM E18
Mar 2024
ASTM F436
Dec 2022
ASTM F467
Sep 2018
ASTM F468
Nov 2023
ASTM F1470
Jan 2024
Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range Standard Test Methods for Rockwell Hardness of Metallic Materials Standard Specification for Hardened Steel Washers Inch and Metric Dimensions Standard Specification for Nonferrous Nuts for General Use Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
3.5.4 BSI–BRITISH STANDARDS INSTITUTION
BSI BS EN 10204
2004
Metallic products. Types of inspection documents
3.5.5 NACE INTERNATIONAL
NACE MR0175/ISO 15156
4th Edition 2020
Petroleum and Natural Gas Industries Materials for Use in H2S-Containing Environments in Oil and Gas Production
3.5.6
ISPM- International Standards for Phytosanitary Measures
ISPM 15
2009
International Standards for Phytosanitary Measures No. 15.
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SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
3.5.7 SSPC-Society for Protective Coatings
SSPC PA 2
Measurement of Dry Coating Thickness with Magnetic Gages
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SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
4
PURPOSE OF DOCUMENT
4.1
General
This Specification covers the technical requirements of Bolts & Nuts for Offshore topside piping as per ASME B31.3 & ASME B31.8. The requirements stated in the specification are supplementary to the applicable reference international codes and standards for this project. This specification does not cover foundation bolts for structural steel works, well head Christmas tree, subsea pipeline, reference spec for subsea pipeline and Bolts & Nuts for Onshore piping.
5
GENERAL REQUIREMENTS
5.1
General
5.1.1
In general, the requirements specified in this document shall be applicable, unless specified otherwise.
5.1.2 All manufacturing and testing procedures, mill certificates, qualification certificates shall be
submitted for purchaser review and approval prior to start of work.
5.1.3 Supplier, sub-suppliers and manufacturer of material shall be qualified as per approved
vendor list.
5.1.4 Nuts, studs, and threads shall comply with ASME B16.5 Table 1.1-3 “Flange Bolting Dimensional Recommendations.” Nuts for bolts shall be heavy hex, semi-finished. Stud bolts shall be threaded full length.
5.1.5 Nuts conforming to ASTM A194 Grade 2H, 2HM & 7M in sizes larger than 12 mm (W’) shall not be machined from bar stock. Nuts conforming to ASTM A 194/A 194M Grade 4 in sizes 12 mm (1/2 in.) and smaller shall not be machined from cold-finished bar stock.
Bolts (irrespective of size and material) shall not be machined from bar stock. Bolts shall be forged and thread rolled (Manufacturing and Machining requirements shall be governed by applicable ASTM provisions.)
5.1.6 Materials and fasteners supplied shall conform to the requirements of ASTM A962 / A962M or a COMPANY-approved equivalent standard. These requirements include test methods, finish, thread dimensions, marking, certification, optional supplementary requirements, etc. In general, bolting shall meet the respective mechanical properties required per the applicable standard, and alternate materials may be used provided they comply with any Design Codes and the properties shown in the tables of the relevant standards.
5.1.7 Carbon steel flange studs 38 mm (1½ in.) and larger shall be fitted with washers. Where hydraulic stud tensioners are used, it is permissible to utilize only one washer under the side opposite to the hydraulic tensioner mount. Where no washer is installed under the nut, the maintenance procedure shall include a step to dress up the nut-to-flange contact surface (coating damage and/or scoring). Additionally, the following requirements apply:
- Washers shall conform to ASTM F 436/F 436M or to ASME PCC-1 Appendix M “Washer Usage Guidance and Purchase Specification for Through-Hardened Washers.” The
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SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
surface finish roughness average (Ra) shall be 3.2 micron (125 micro inches) or smoother on both sides. Washers fabricated from AISI 4140 material are acceptable.
-
When coated bolts are required, the washers shall be coated with the same coating.
-
For hydraulic tensioning, extra bolt length of 1 Bolt Diameter shall be considered.
5.1.8 Stud Bolts 1-1/8 Inch diameter and larger shall have one bolt diameter to facilitate bolt tensioning equipment, (When tensioning equipment is to be used, stud length shall be increased by one bolt diameter to allow installation of the tensioning equipment).
5.1.9 Unless otherwise specified, each stud bolt shall be supplied with two heavy hexagonal nuts
and each Headed (Machine) bolt with one heavy hexagonal nut.
5.1.10 Bolting used in conjunction with GRE flanges shall be provided with two numbers of plain circular carbon steel washers to prevent damage to the GRE flanges when the stud bolts are tightened. The washers shall comply with ASTM F436 Type 1.
5.1.11 Bolting material specified in this Standard shall be as per details provided in purchase
description.
5.1.12 All Raw materials used to manufacture bolts and nuts shall be new, unused and free from
any defects. Re-using of Bolts post the tightening is not acceptable.
5.1.13 Higher sulfur (≥ 0.5%) austenitic stainless steel materials such as American Iron and Steel Institute (AISI) 303 and all free machining grades of stainless steel shall not be permitted. Because of these materials’ susceptibility to external Chloride Stress Corrosion Cracking (CSCC), cold-worked (i.e., strain-hardened) austenitic stainless steel materials (e.g., AISI 304 and 316) shall not be permitted in offshore environments or locations with direct exposure to brackish water (e.g., subject to deluge) unless physically protected from chloride contact. 300 Series bolts shall not be used for pressure retaining parts.
5.1.14 The use of AISI 316 and AISI 317 materials is also not acceptable due to the potential for
external CSCC.
5.1.15 Precipitation-hardened martensitic stainless steels, such as 17-4 PH, may suffer serious
crevice and pitting corrosion, so their use as fastener materials is not permitted offshore.
5.1.16 Design of Threads shall be as follows:
- Stud bolt, headed (Machine) bolt and jack screw supplied according to this Specification
shall be full length threaded.
- Threading shall be in conformity with the following series of Standard ASME B 1.1.
a) “Coarse “series for diameters less than or equal to 1 in
b) “8UN thread” series for diameters equal to or greater than 1-1/8 in
- The machining and surface condition tolerances applicable: to the various threading shall
be in conformity with the following class.
a) Class 2A of standard ASME B.1.1 for stud bolts, Headed (Machine) bolts and jack
screws.
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COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
b) Class 2B of standard ASME B 1.1 for nuts.
- After coating, nuts shall be tapped oversized by an amount equal to the coating thickness
of the bolt threads in order to have a proper nut bolt assembly.
5.1.17 Dimensions shall be in accordance with the following:
a) Bolt dimensions shall be in accordance with ASME B 18.2.1.
b) Nut dimensions shall be in accordance with ASME B18.2.2.
c) Bolt diameter and length shall conform to the dimensions shown on the purchase order.
Diameters shall be in inches and lengths shall be in millimeters.
d) Headed (Machine) bolt length shall be measured from under the head to end of the bolt excluding the chamfered end points. The length of the stud bolt specified is measured excluding end points.
e) The diameter and lengths, thread length etc. of stud bolts, as appropriate, shall comply with standards ASME B 16.5, ASME B16.47 Series A, API Spec 6A and ASME B 18.2.1.
f) The lengths given on the purchase orders are service lengths that do not include the
dimensions of the end bevels.
5.1.18 Low alloy steel bolts including nuts and washers shall be coated with 2L PTFE coat (After Zinc pretreatment) and shall conform to Specification For Fixed Facilities Protective Coating For COMP3 Project Doc No. 200-20-CE-SPC-00027 in accordance to Table D1, except Inconel bolts.
5.2
Fasteners Coating
5.2.1 Fasteners coating shall be as per Appendix E of Specification for Fixed Facilities Protective
Coating for COMP3 Project Doc No. 200-20-CE-SPC-00027.
6
Testing and Inspection
6.1
General
6.1.1 Vendor to submit an ITP for EPC CONTRACTOR / COMPANY approval.
6.1.2 All fasteners shall be tested in accordance with applicable ASTM, ASME and other
references specifications, code or standards and purchase order.
6.1.3 Material to be used in sour service shall be additionally tested as specified in NACE MR0175 standard and as per Project Specification Doc. No. 200-20-CE-SPC-00025 “Specification for Topsides Material & Corrosion Requirements for Sour Service for COMP3 Project”.
6.1.4 Where inspection and tests are required on randomly selected items, manufacturer shall make available a complete lot for purchaser or purchaser’s representative or third-party inspector to select randomly the items to conduct inspect or test as required by purchase order. Manufacturer’s pre- selected items from lot and presented for inspection or testing will not be accepted.
200-20-PI-SPC-00046_00
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Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
6.1.5 Vendor is responsible for informing the EPC CONTRACTOR / COMPANY about the
availability of goods for inspection and testing.
6.2
Hardness Testing
Hardness testing shall be performed in accordance with either Specification ASTM A962 / A962M or with Test Methods F606. Hardness values shall be as per corresponding ASTM standards such as ASTM A193, ASTM A194, ASTM A320, ASTM F468, ASTM F467, Alloy 925, ASTM A453.
6.3
Impact Testing
All bolts shall be impact tested as per below Table 6-1
Table 6-1: Impact Testing
Minimum Impact Value Required for Average of Each Set of Three Specimens, ft·lbf [J]
Minimum Impact Value Permitted for One Specimen Only of a Set, ft·lbf [J]
20 [27] 20 [27] 20 [27] 20 [27] 40 [54]
15 [20] 15 [20] 15 [20] 15 [20] 30 [41]
Test
Temperature
(˚C)
-29 -29 -101 -73 -29
Material Grade
A193 B7 / A194 2H A193 B7M / A194 2HM A320 L7 / A194 7 A320 L7M / A194 7M A453 Gr. 660
6.4
Inspection
6.4.1 100% Visual inspection shall be supplemented by a comparison of markings on the bolts
and/or nuts.
6.4.2 All materials shall be inspected and be completed with all necessary documentation
6.4.3 Inspection and witnessing during various stages of manufacture, testing and final inspection shall form a part of scope of purchase order. Supplier shall provide free access to supplier / sub-supplier facilities for purchaser or purchaser’s representative or third-party inspection agency to carry out inspections, test witnessing and final inspection as per agreed hold points of Inspection and Test Plan.
6.4.4 Dimensional check of bolting shall be carried out in accordance with the relevant governing
codes and standards.
6.4.5
Inspection and testing shall be in accordance with the applicable codes and standards and approved ITP.
6.4.6 The completed bolting shall be inspected and certified by the Manufacturer prior to shipment.
Bolting containing defects shall be rejected.
6.5
Heat Treatment
Heat treatment requirements shall be as per fasteners applicable ASTM material standards.
200-20-PI-SPC-00046_00
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Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
6.6
Tensile Test
Tensile test requirements shall be as per fasteners applicable ASTM material standards.
7
POSITIVE MATERIAL IDENTIFICATION (PMI)
7.1.1 Positive Material Identification (PMI) shall be conducted for all SS / CRA alloy piping items
as per the project specification included in the Inquiry / Purchase requisition.
7.1.2 Positive material identification (PMI) shall be carried out as per Specification for Positive Materials Identification (PMI) for COMP3 Project, Doc. No.: 200-20-CE-SPC-00034. PMI instrument used shall have latest calibration and shall be approved by purchaser.
7.1.3 Alloy and CRA fasteners (bolts and nuts) for general service applications require a random
PMI inspection: A random inspection sample shall be as per below Table 7-1.
Table 7-1: 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)
8
MARKING AND TRACEABILITY
8.1.1 All studs, bolts, and nuts shall be permanently marked as defined in the applicable fastener materials standard, (e.g., ASTM A 962 / A 962M). Only rounded face, low stress stamp techniques shall be applied. The following information shall be included:
-
Manufacturer’s identification mark and / or code.
-
Steel grade.
-
Property class.
-
Heat Number
-
Heat treatment lot
8.1.2 Refer to ” Material Management and Traceability Control Procedure ” Doc. No.: COMP3-
SPM-CC-PRC-00002, for additional requirements.
8.1.3 The grade of steel and the manufacturer mark with specific traceability code to ensure all
traceability heat number, heat treatment lot shall be cold-stamped on each bolting element. the marking shall be located on one of the ends of each stud bolts and one of the flat of each nut.
200-20-PI-SPC-00046_00
Page 18 of 20
Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
9
CERTIFICATION
9.1.1 All material certification shall be in accordance to the EN 10204 Type 3.2 for Alloy 625 and Type 3.1 for other material. Material certificate shall show the chemical composition, mechanical test records, heat treatment records and any other records of supplementary tests specified in purchase order.
10 HANDLING, PACKING, PRESERVATION AND STORAGE
10.1.1 Material handling, packaging, preservation and storage shall be as per project specification
Doc. No.- COMP3-SPM-PO-PRC-00005 and purchase order requirements.
10.1.2 Material handling shall ensure to prevent or minimize the possibility of contamination.
10.1.3 Bolting items shall be supplied with suitable rust preventive. Bolts shall be protected by a
noncorrosive oil or grease.
10.1.4 Use of bare steel hooks, chains or lifting forks without the use of protective insulating material
is not permitted.
10.1.5 Preservation and protection of components shall be as per project specifications and
requirements of ASTM A700.
10.1.6 Wooden boxes shall be fumigated and certified to requirements of ISPM 15.
10.1.7 All components are to be thoroughly cleaned prior to preparation for packing and shipping.
10.1.8 The nuts shall be supplied as screwed on to the bolts at least by two threads.
10.1.9 Bolting of different materials of construction, different types and different sizes shall be
packaged separately.
11 DOCUMENTATION
11.1.1 Vendor shall certify that all components are in compliance with the relevant ASTM specifications, codes and project specification referred here-in and enclosed with purchase order.
11.1.2 List below gives the minimum required supplier documents. However, supplier shall submit all the documents / reports as a part of supplier documentation as per purchase order. All documents / certificates shall be signed by responsible person of supplier.
• Mill Certificate /CMTR;
• Mechanical Test Records;
•
Impact Test Records;
• Hardness Test Records;
• PMI test Records.
200-20-PI-SPC-00046_00
Page 19 of 20
Classification: Internal
NORTH FIELD PRODUCTION SUSTAINABILITY (NFPS) PROJECT
COMP3 - NFPS OFFSHORE RISER/WELLHEAD PLATFORM & INTRAFIELD PIPELINES PROJECT
SPECIFICATION FOR PIPE FASTENERS FOR COMP3 PROJECT
12 NON-COMPLIANCE / DEVIATION:
If any of the requirements of this Specification cannot be met, VENDOR/SUPPLIER must provide written notification of non-compliances in “Technical clarification form and Deviation form” as attached in the Material Requisition, with explanations, in accordance with project instructions. This notification will be evaluated and must have COMPANY approval before final acceptance.
200-20-PI-SPC-00046_00
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Project: Q-32705 - Saipem COMP3 Folder: RFQ Files