1. GENERAL
………………………………
1.1 Summary
2. REFERENCES
2.2 Precedence
of
Requirements
.
3. SUBMITTALS
3.1 Certificate
of Compliance
3.2 Material Test Reports ………….3.3
Welding and NDE Procedures
3.4
Supply of Drawings
4. Qa
(QUALITY ASSURANCE)
……
4.1 Inspection
Authorization
5. PRODUCTS
5.1 Materials
…………………………….
5.2 Design Criteria
5.3
Fabrication and Manufacture
5.4
Inspection and Tests …………..
5.5
Identification and Tagging
5.6
Preparation for Shipment
6. EXECUTION
…………………………..
7. ATTACHMENTS
1. General
1.1 Summary
1.1.1 Scope of Specification.This specification prescribes the requirements for purchase of pipe, fittings,
and flanges and supplements the Item Description shown on the Bills of Material.
1.1.2 Work Not Included
1.1.2.1 Installation of pipe, fittings, or flanges is not included in Supplier’s scope under this specification.
1.1.2.2 Maintenance and repair of material after receipt and acceptance by authorized personnel and
jobsite storage are not included in Supplier’s scope except where warranty repairs are determined to be
required.
1.1.2.3 Unloading at jobsite.
1.1.2.4 Pressure testing of fittings or flanges is not required.
1.1.3 Related Specifications
The following United specifications prescribe items of related Work:
SES P14-T03 Piping Traceability And Certification
SES P25-G01 Selection of Flanges
Coordinate Work prescribed by this specification with Work prescribed by the above listed specifications.
1.1.4 Related Technical Requirements
Note: Applicable documents listed above should be attached for Supplier’s information.
1.1.5 Supplied by Supplier
1.1.5.1 Supply of Material
a. Supplier’s scope shall include the supply of material as specified in the PO (Purchase Order)
and written clarifications thereto, modifications necessary to meet the requirements of the Item
Description, and additional engineering notes in the PO, examination and testing, preparation of the
material for shipment, suitable packaging, and Manufacturer’s warranty.
b. All piping materials shall be clearly marked with Country of Origin in accordance with applicable
government regulation. In addition, all materials shall be produced by Manufacturers listed in the
Acceptable Manufacturers List (AML). Any materials deviating from these requirements must have
prior written authorization, or they will be subject to rejection or additional verification or testing at the
seller’s expense.
1.1.5.2 Equivalent Manufacturers. Items specified or referenced by Manufacturer and figure number do
not exclude items offered by other manufacturers. Products made by reputable manufacturers and of
comparable type, quality, and characteristics may be submitted for Piping Material Engineer evaluation.
1.1.5.3 Refurbished Material. Pipe, fittings, and flanges furnished shall be original Manufacturer’s
production. Reconditioned piping components shall not be furnished without prior written authorization.
1.1.5.4 Approved Manufacturer.
a.
Items that are equivalent to the Reference (where references are used) in the Item Description
contained in the RFQ (Request For Quotation) may be offered for evaluation.
b. The approved manufacturer, shown below the Item Description on the PO, is the item accepted
by Contractor, and no other manufacturer may be furnished. When a manufacturer is not shown
below the Item Code Description, the Supplier shall furnish the manufacturer referenced in the Item
Description.
1.1.5.5 External Coatings and Linings. Where specified in the Item Description or the PO, coatings, primer,
paint system, wrapping, or other permanent external surface treatment shall be furnished in accordance
with United Specification 00-N-0013 or other United Specification, as applicable.
1.1.6 Terminology
1.1.6.1 Authorized or Authorization: Authorization by Contractor Piping Material Engineer.
1.1.6.2 Major Repairs: Repairs defined as major in ASTM A 217.
1.1.6.3 Minor Repairs: Repairs not defined as major repairs.
1.1.6.4 Joint Efficiency Factor: The factor Ej from the applicable Piping Code, i.e.ASME B31.1,
ASME B31.3, etc., that governs type and extent of required examination.
1.1.6.5 100 percent Examination: Examination of welds and heat-affected zones and adjacent base metal
along 100 percent of weld length. Examination of 100 percent of pipe or fitting surface area shall not be
required unless so stated.
1.1.6.6 Refurbishment: The furnishing of pipe, fittings, or flanges that are not new and not of the original
Manufacturer’s production.
2. References
2.1 The publications noted herein form part of this specification. Each publication shall be the latest
revision and addendum in effect on the date this specification is issued “Approved for Construction”, unless
noted otherwise. Except as modified by the requirements specified herein or the details of the drawings,
Work included in this specification shall conform to the applicable provisions of these publications.
API (American Petroleum Institute)
5L Specification for Line Pipe
ASME (American Society of Mechanical Engineers)
Section II Material Specifications
Section VIII Division I Boiler and Pressure Vessel Code
Section IX Welding and Brazing Qualifications
B.1.1 Unified Inch Screw Threads
B1.20.1 Pipe Threads, General Purpose (Inch)
B16.1 Cast Iron Pipe Flanges and Flanged Fittings
B16.3 Malleable Iron Threaded Fittings
B16.5 Pipe Flanges and Flanged Fittings
B16.9 Factory-made Wrought Steel Buttwelding Fittings
B16.11 Forged Steel Fittings, Socket Welding and Threaded
B16.25 Buttwelding Ends
B16.28 Wrought Steel Buttwelding Short Radius Elbows and Returns
B16.36 Orifice Flanges
B16.42 Ductile Iron Pipe Flanges and Flanged Fittings
B16.47 Large Diameter Steel Flanges, NPS 26 through 60 B31.1 Power Piping
B31.3 Process Piping
B31.4 Liquid Transportation Systems for Hydrocarbons, LPG,
Anhydrous Ammonia, and Alcohols
B31.8 Gas Transmission Piping
B36.10M Welded and Seamless Wrought Steel Pipe
B36.19M Stainless Steel Pipe
B46.1 Surface Texture
ASNT (American Society for Nondestructive Testing)
SNT-TC-1A Recommended Practice for Nondestructive Testing PersonnelQualification and Certification
AWWA (AmericaWater Works Association
C207 Steel Pipe Flanges for Water Works Service
MSS (Manufacturers Standardization Society of the Valve and Fittings Industry)
SP-6 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and
Fittings
SP-9 Spot Facing for Bronze, Iron and Steel Flanges
SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions
SP-43 Wrought Stainless Steel Buttwelding Fittings
SP-44 Steel Pipe Line Flanges
SP-53 Quality Standard for Steel Castings and Forging for Valves, Flanges, Fittings, and Other Piping
Components – Magnetic Particle Examination Method
SP-54 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components
Radiographic Examination Method
SP-55 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components
Visual Method
SP-79 Socket Welding Reducer Inserts
SP-83 Steel Pipe Unions, Socket Welding and Threaded
SP-93 Quality Standard for Steel Castings and Forging for Valves, Flanges, Fittings, and Other Piping
Components – Liquid Penetrant Examination Method
SP-94 Quality Standard for Steel Castings and Forging for Valves, Flanges, Fittings, and Other Piping
Components – Ultrasonic Examination Method
SP-95 Swage(d) Nipples and Bull Plugs
SP-97 Forged Carbon Steel Branch Outlet Fittings – Socket Welding, Threaded and Buttwelding ends
NACE (National Association of Corrosion Engineers)
MR-01-75 Sulfide Stress Corrosion Cracking Resistant Metallic Materials for Oilfield Service
2.2 Precedence of Requirements
2.2.1 Conflicts in technical requirements shall be resolved in the following order of precedence:
a. Technical requirements specified in the RFQ or PO, as applicable, and identified as additional
technical requirements or engineering notes.
b. The Item Description as shown on the Bills of Material.
c. The requirements of this specification.
d. The requirements of referenced codes or standards (such as ASME B16.5).
3. Submittals
3.1 Certificate of Compliance
3.1.1 For carbon steel pipe, fittings, flanges, and fittings and flanges, Supplier shall furnish certification of
compliance with ASTM, API, or ASME specification and SES P14-T03. The certification shall include
Contractor’s PO Number, Item Code Numbers, name and address of supplier, and shall be certified by
Supplier’s authorized agent.
3.1.2 ASTM materials may be substituted for materials specified as ASME, provided that the ASME
specification is indicated (below the title) to be identical to the corresponding ASTM Specification for the
grade, class, or type produced. The Manufacturer shall state the dual compliance on the Certification of
Compliance. ASTM specification material substitutions shall be submitted for acceptance before
administration of the Purchase Order.
3.2 Material Test Reports
3.2.1 For impact tested steels, chrome steel, stainless steel, or nickel alloy pipe, fittings and flanges,
Supplier shall furnish the Manufacturer’s MTRs (Material Test Reports) showing actual results of chemical
analysis and mechanical tests in compliance with the referenced ASTM specification. The test reports
shall be originated by the primary material Manufacturer and shall be traceable to each item or length of
pipe through legible paint stenciled heat numbers or equivalent. The documents shall be identified with Contractor’s PO number and Item Code number and shall be signed by the Manufacturer’s authorized
agent.
3.2.2 For pipe material specific to an ASME (SA or SB) specification in the Item Description, Supplier shall
furnish the Manufacturer’s MTRs showing actual results of chemical analysis and mechanical tests in
compliance with the referenced ASME specification. The test reports shall be traceable to each item or
length of pipe through legible paint stenciled heat numbers or equivalent. The documents shall be identified
with Contractor’s PO number and Item Code number and shall be signed by the Manufacturer’s authorized
agent.
3.2.3 ASTM materials may be substituted for materials specified as ASME, provided that the ASME
specification is indicated (below the title) to be identical with the corresponding ASTM specification for the
grade, class, or type specified. The Manufacturer shall state the dual compliance on the MTR. ASTM
specification material substitutions shall be submitted for evaluation before administration of the Purchase
Order.
3.3 Welding and NDE Procedures
3.3.1 When specified in the Item Description, the PO, or this specification, Supplier shall furnish welding
procedures (QW-482) and procedure qualifications (QW-483) for Contractor Welding Engineering
authorization. The procedures and qualifications shall be in accordance with ASME Section IX. The
qualifications shall include hardness testing in accordance with ASTM A 370. The hardness testing shall be
performed on the weld and the heat affected zone and after required heat treatment.
3.3.2 When requested in the Item Description, the PO, or this specification, the Supplier shall furnish NDE
procedures for Contractor Welding Engineering acceptance. The procedures shall be in accordance with
ASME Code Section V.
3.3.3 When requested in the Item Description, welding procedures, procedure qualifications, and NDE
procedures for the following materials shall be submitted for authorization. These shall be included for all
pipe and fittings manufactured with weld seams.
a. Chrome steels (i.e., 1-1/4 CR through 12 CR).
b. Stainless steels, greater than 1/2 inch wall only.
c. Nickel alloy steels.
3.4 Supply of Drawings
3.4.1 Dimensional drawings shall be furnished for the following:
a. Fittings and flanges larger than NPS (Nominal Pipe Size) 48.
b. Fittings and flanges not covered by a recognized national dimensional standard.
c. Flanges not made to an ASME Standard. d. Tees for verification of crotch thickness and reducers
showing the knuckle radius.
e. These drawings shall be certified when required by the Purchase Order.
3.5 Pipe shall be furnished with a certification of hydrostatic testing.
4. Qa (Quality Assurance)
4.1 Inspection Authorization
4.1.1 Examinations and tests may be reviewed and witnessed by Contractor or its authorized agent at
Supplier’s or Manufacturer’s facility.
4.1.1.1 Seamless pipe, fittings, and flanges shall have inspection in accordance with the ASTM, ASME,
API, or MSS specification to that they are manufactured, witnessed as selected by Inspector. A general
inspection of the facility for QA procedures may be made as selected by Inspector.
4.1.1.2 Each lot of EFW (Electric-Fusion Welded) pipe shall have the requirements above and 5 percent
ultrasonic examination 8-inches back (200 mm) from each end, in the parent metal, on pieces as selected by Inspector. Laminations having a transverse dimension exceeding 1/4 of an inch (6 mm) are considered
injurious defects. Pipe containing such defects shall be cut back until such defects are removed.
4.1.1.3 Seam welded pipe shall have no evidence of cracks, craters, slag, undercut, or overlap, and shall
have good workmanlike characteristics and appearance. Evidence of weld flash on ID shall be removed.
4.1.1.4 Questionable areas shall have magnetic particle or liquid penetrant inspection as selected by
Inspector. Repairs require inspection.
4.2 Refurbishment of previously used material is not permitted.
4.3 Major repairs are not permitted.
5. Products
5.1 Materials
5.1.1 Pipe
5.1.1.1 Dimensions and Weights. Pipe shall be in accordance with ASME B36.10M or B36.19M, as
applicable, when specified as a schedule, a weight, or a wall thickness.
5.1.1.2 Lengths. Pipe NPS 2 and larger shall be supplied in double-random lengths, with no intermediate
circumferential butt welds allowed.
5.1.1.3 Nonexpanded Condition. Where carbon steel seam welded pipe is specified as nonexpanded in
the Item Description, cold expanding for final sizing is acceptable and shall not exceed 1-1/2 percent of the
pipe outside diameter.
5.1.1.4 Threaded and Coupled. Threaded and coupled steel pipe shall be furnished with API steel-line
pipe couplings with taper pipe threads in accordance with ASME B1.20.1. Merchant couplings are not
acceptable. Couplings for galvanized pipe shall also be hot-dipped galvanized in accordance with
ASTM A53.
5.1.1.5 Dents in pipe shall not exceed the limits specified in the specification referenced for manufacture,
or API 5L.
5.1.1.6 The following are permissible substitutions for the same grades:
a. Carbon steel seamless pipe to ASTM A106 or ASME SA106, in place of ASTM A53 or API 5L.
b. Carbon steel seamless pipe to ASTM A or ASME SA 53 in place of API 5L seamless or ERW
respectively.
c. API 5L ERW (Electric Resistance Welded) in place of ASTM A53 or ERW respectively.
d. Carbon steel seamless pipe to ASTM A 53 or A106 or API 5L, or API 5L double submerged arc
welded pipe, in place of ERW.
e. Straight seam welded pipe (of the same specification and equal grade), in place of spiral seam
welded.
f. Other substitutions are not permitted without authorization.
5.1.2 Fittings
5.1.2.1 Dimensions and Weights. Forged fittings of Class 2000, 3000, 6000, or 9000 ratings shall be in
accordance with ASME B16.11. Threaded malleable iron fittings shall be in accordance with ASME B16.3.
Wrought butt welding fittings shall be in accordance with ASME B16.9. Cast iron flanged fittings shall be in
accordance with ASME B16.1. Ductile iron flanged fittings shall be in accordance with ASME B16.42.
Integrally reinforced branch connection fittings shall be in accordance with MSS SP-97.
5.1.2.2 Materials of Manufacture.Unless otherwise specified, threaded or socket welding forged carbon
steel fittings shall be supplied with material according to ASME B16.11, and wrought butt welding fittings
shall be supplied with material according to ASME B16.9.
5.1.2.3 Buttwelding Tees Crotch Thickness and Radius. The crotch thickness of the branch outlet of butt
welding tees shall be no less than 150 percent of the nominal wall thickness of the tee, unless this
requirement is specifically waived in writing by Contractor. The crotch radius of the branch outlet of butt
welding tees shall be no less than 12.5 percent of the branch outlet OD.
5.1.2.4 Fabricated Fittings (Tees and Reducers). Mitered type fittings and fabricated tees, made by joining
sections of pipe, are not permitted. Tapered conical reducers (reducers without knuckle radius on both
ends as illustrated in ASME B16.9) are not permitted.
5.1.2.5 Taper Boring. Where necessary to furnish butt welding fittings with ends internally tapered to the
specified schedule, weight or thickness, end-to-end or center-to-end dimensions shall be furnished if
tapering results in nonstandard dimension. This information shall be submitted as part of Supplier’s
quotation.
5.1.2.6 Oversize Ends.Beveled and plain ends of NPS 2 and smaller pipe and swage nipples shall be
capable of fitting into ASME B16.11 socket welding connections, to the full depth of the fitting socket.
Oversize ends are not permitted.
5.1.2.7 Maximum Thickness. The maximum thickness of fittings shall not exceed 25 percent of the
specified nominal wall thickness.
5.1.2.8 Tolerance for Fittings Outside of Size Range. Tolerances for fittings specified to ASME B16.9 that
are larger than NPS 48 shall be the same as those for NPS 48 fittings.
5.1.2.9 Integrally Reinforced Branch Fittings.Integrally reinforced branch connection fittings shall reinforce
the header pipe wall thickness with equivalent material, and provide 100 percent header pipe strength in
accordance with the requirements of applicable Piping Code.
5.1.2.10 Substitutions
a.
It is permissible to substitute seamless fittings in place of welded fittings of the same grade and
wall thickness.
b. Other substitutions are not permitted without authorization.
5.1.3 Flanges
5.1.3.1 Dimensions and Weights. Flanges through NPS 24 shall be in accordance with ASME B16.5.
Flanges NPS 26 through 60 shall be in accordance with ASME B16.47 or the dimensional standard stated
in the Item Description. Cast iron flanges shall be in accordance with ASME B16.1. Ductile iron flanges
shall be in accordance with ASME B16.42.
5.1.3.2 Materials of Manufacture. Unless otherwise specified, materials shall be supplied in accordance
with the ASTM specifications listed in Table 1A of ASME B16.5.
5.1.3.3 Finish. The gasket contact surface shall have concentric or continuous spiral grooves, resulting in a
roughness height within the range of 125 to 250 µ microinch (3.2 to 6.3 mm) Ra in accordance with ASME
B16.5. Surface finishes outside the range specified, whether rougher or smoother, are not acceptable.
5.1.3.4 Orifice Flanges.
a. Orifice flanges shall be furnished in pairs (1 set), and shall be supplied with jack screws but
without bolts or gaskets.
b. Orifice flanges shall be in accordance with ASME B16.36 except that where threaded pressure
taps are specified in the Item Description, the outer ends of pressure tap holes shall have female taper
pipe threads in accordance with ASME B1.20.1 of the following sizes:
(i) Class 150 through Class 600 – 1/2 NPT
(ii) Class 900 through Class 2500 – 3/4 NPT
c. Threaded Pressure tap holes shall be fitted with plugs with the same metallurgy as the flange.
5.1.3.5 Reducing Sizes
The dimensions shown in the size column of the Bill of Material for reducing flanges indicate the nominal
pipe size, not the outside diameter of the flange.
5.1.3.6 No substitutions are permitted without authorization.
5.2 Design Criteria
5.2.1 End Preparation
5.2.1.1 Ends of pipe, fittings, and flanges shall be in accordance with the following:
a. Pipe NPS 1-1/2 and smaller may be furnished with plain ends, and cut square.
b. Pipe NPS 2 and larger and butt weld end fittings and flanges shall be furnished with beveled ends in
accordance with ASME B16.25, Figure 2a. Pipe, fittings and flanges with wall thickness in excess of
0.88-inch (22.2 mm) shall have compound bevel in accordance with ASME B16.25, Figure 3a, unless
otherwise specified. API 5L pipe may be beveled in accordance with API 5L. Flame cut weld bevels are
not permitted.
c. Socket weld ends of fittings and flanges shall be in accordance with ASME B16.11.
d. Threaded ends of pipe, fittings, and flanges shall be taper pipe threads in accordance with
ASME B1.20.1.
5.2.2 High Yield Steel. High yield steels, with specified minimum yield strength of 42 ksi or greater, shall
not be substituted for steels with specified minimum yield strength of 36 ksi or less, such as Grade B.
Steels with reported yield strengths of 42 ksi or greater are acceptable wherever Grade B steels are
specified, provided that weldability is equivalent to that of a Grade B steel.
5.2.3 Hardness
5.2.3.1 The maximum hardness of the base metal, weld seam, and heat affected zone, after required heat
treatment, shall not exceed the requirements of the specification referenced for manufacture. Where no
requirements are stated, the following limitations shall apply:
a. 225 HB for P-1, P-3, and P-4 materials.
b. 241 HB for P-5, P-6, and P-7 materials.
5.2.4 Austenitic stainless steels shall be furnished in the solution annealed condition.
5.2.5 Monel. Monel body material for threaded end, socket welding end, and butt welding end components
shall be of a weldable composition.
5.2.6 Galvanizing. Pipe, fittings, and flanges specified in the Item Code Purchase Description as
galvanized, shall be galvanized in accordance with ASTM A153.
5.2.7 Postweld Heat Treatment of Welds. Where the material specification referenced for manufacture
does not require mandatory heat treatment, components containing longitudinal welds (and
circumferential welds where permitted) shall be heat treated after forming, welding, and weld repairs in
accordance with the requirements of the applicable code, when the wall thickness or chemistry of the pipe
is such that the code requires post weld heat treatment.
5.3 Fabrication and Manufacture
5.3.1 Fabrication and Manufacturing by Welding. Fabrication of pipe or fitting by welding shall be in
accordance with the requirements of the specification referenced for manufacture. In addition, welding
preheat temperatures shall be in accordance with applicable Piping Code, i.e. ASME B31.1, ASME B31.3,
ASME B31.4, etc.
5.3.2 Repairs
5.3.2.1 Casting repairs are not permitted for cast iron, malleable iron, ductile iron, brass, or bronze
materials. Major repairs of castings, as defined by ASTM A 217, are not permitted.
5.3.2.2 Limitations on imperfections, and method and extent of required examination for repairs, shall be
the same as required for the original castings.
5.3.2.3 Repair of castings by peening or impregnation with metallic or nonmetallic materials is not
permitted.
5.3.3 Modification. Modification or repair, including the refacing of flange gasket seating surfaces, shall be
in accordance with referenced specifications.
5.4 Inspection and Tests
5.4.1 Pressure Testing. Each length of pipe shall be subjected to a hydrostatic test in accordance with an
ASTM, ASME, or API specification referenced for manufacture. Where there is a choice in the specification
of hydrostatic test or other NDE (Nondestructive Examination), the hydrostatic test shall be performed. If no
hydrostatic test is required in the Manufacturer’s specification, then the ASTM A 530 / ASME SA 530
hydrostatic test shall be performed.
5.4.2 Examination
5.4.2.1 Examination is required only where specified by the specification and grade of manufacture, or
where specified in the Item Description or in the Purchase Order.
5.4.2.2 Surfaces to be examined shall be clean and free from surface conditions that may mask
unacceptable conditions.
5.4.2.3 Personnel performing and evaluating examinations other than visual examination and hardness
testing shall be qualified in accordance with the ASNT SNT-TC-1A. Only Level II or III personnel shall be
authorized to interpret results for radiographic and ultrasonic examinations.
a. Castings shall meet the visual acceptance standards of MSS SP-55.
b. Radiography shall be in accordance with ASTM E 94, with quality level in accordance with ASTM
E 142, and acceptance criteria in accordance with ASME Section VIII, Division 1, Paragraph UW-51.
c. Magnetic particle examination shall be in accordance with ASTM E 709, with acceptance criteria
in accordance with ASME Section VIII, Division 1, Appendix 6.
d. Where magnetic particle examination has been specified, liquid penetrant examination may be
applied only to surfaces not accessible for or amenable to magnetic particle examination.
e. Liquid penetrant examination shall be in accordance with ASTM E 165, with acceptability of
surface flaws in accordance with ASTM E 433, and acceptance criteria in accordance with ASME
Section VIII, Division 1, Appendix 8.
f. Ultrasonic pulse-echo straight beam examination shall be in accordance with ASTM E 213,
evaluated in accordance with ASTM E 317, and acceptance criteria in accordance with ASME Section
VIII, Division 1, Appendix 12.
g.
Impact tests, where required by the material specification or where called for in the Item
Description, shall be in accordance with the requirements of the applicable Piping Code.
h. Evaluation of flange face damage shall be in accordance with United Specification
SES P25-G01.
5.5 Identification and Tagging
5.5.1 Marking and Color Coding
5.5.1.1 Each fitting or flange shall be marked in strict accordance with the specification referenced for
manufacture, or MSS SP-25 as a minimum. Pipe shall be marked in strict accordance with the ASTM,
ASME, or API specification of manufacture.
5.5.1.2 If blasting and priming of pipe are required by the Item Description or the PO, then the original
marking such as material grade designation, schedule, and heat number shall be restenciled on the
exterior of the pipe at 6 foot intervals with paint compatible with primer.
5.5.1.3 Pipe, fittings, and flanges shall be color coded when specified in the Item Description. Color coding
is intended to supplement, not replace, normal identification marking required by ASTM, ASME, API,
MSS, or other standards.
5.5.1.4 When specified to be color coded, each length of pipe and each fitting shall be painted over its
entire length, and each flange around its edge, with a 1/2 of an inch (12 mm) to 1-inch (25 mm) wide stripe.
Each threaded or socket weld fitting shall be marked with a dot of paint 1/2 of an inch (12 mm) to 1-inch
(25 mm) in diameter. Supplier shall exercise good judgment in selecting appropriate width, depending on
size of item to be color coded.
5.5.1.5 Marking paint or ink shall be resistant to salt water atmospheres, tropical or freezing climates, or
similar attack; it shall not, in itself, cause corrosion of the piping components to which it is applied. For
austenitic stainless steel or nickel alloy piping components, it shall not contain chlorides, nor shall it
contain metals, such as zinc or lead, that may cause corrosive attack at high temperatures.
5.5.1.6 Paint shall not be applied to the inside of pipe, threads, weld bevels, gasket surfaces, symbols, or
markings, if doing so would obliterate identification.
5.5.1.7 In addition to the above marking, each pipe nipple and swage nipple shall be identified with the
material and schedule, weight, or thickness by stenciling, etching, or steel stamping with low stress
stamps that shall neither infringe on the minimum thickness nor result in sharp discontinuities.
5.6 Preparation for Shipment
5.6.1 Carbon steel and chrome steel pipe, fittings, and flanges, when not galvanized or prime coated, shall
be furnished with the Manufacturer’s standard protective mill coating. Austenitic stainless steel pipe,
fittings, and flanges shall not be coated.
5.6.2 Austenitic stainless steel or nickel alloy pipe, fittings, and flanges shall be protected from ferritic
contamination and chloride attack such as might occur from exposure to salt water spray or atmosphere
during shipment, cleaning, fabrication, testing, or storage. Consideration shall also be given to enclosing
or wrapping in a vaporproof barrier material.
5.6.3 Piping components with beveled ends shall be palletized and shrink wrapped or banded with steel or
plastic strapping.
5.6.4 Threaded ends of pipe shall be fitted with plastic thread protectors. Threaded or socket weld
openings in fittings and flanges shall be fitted with plastic plugs.
5.6.5 Flanges shipped on pallets or in wooden crates and shrink-wrapped or tied down so that they cannot
bump together shall have cardboard, pressboard, rubber, or plastic face protectors between layers of
flanges. Single loose flanges shall have high-impact plastic protectors secured with lock plugs (integral or
separate). Wood, cardboard or pressboard protectors (that can absorb water) are not acceptable as flange
face protectors.
6. Execution
Not applicable.
7. Attachments
Not applicable.