ASTM A972/A972M-00
(Specification)Standard Specification for Fusion Bonded Epoxy-Coated Pipe Piles
Standard Specification for Fusion Bonded Epoxy-Coated Pipe Piles
SCOPE
1.1 This specification covers pipe piles with protective fusion-bonded epoxy powder coating applied by the electrostatic spray, flocking , or fludized bed process.
Note 1-The coating applicator is identified throughout this specification as the manufacturer.
1.2 Other organic coatings may be used provided they meet the requirements of this specification.
1.3 Requirements for the powder coating are contained in Annex A1.
1.4 This specification is applicable for orders in either SI units (as Specification A 972M) or inch-pound units (as Specification A 972). The values stated in either SI or inch-pound units are to be regarded as standard. Within the text, the inch-pound units are shown in brackets.
1.5 The following precautionary statement refers to the test method portion only, Section 8, of this standard: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: A 972/A 972M – 00
Standard Specification for
Fusion Bonded Epoxy-Coated Pipe Piles
This standard is issued under the fixed designation A 972/A 972M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope G 14 Test Method for Impact Resistance of Pipeline Coat-
ings (Falling Weight Test)
1.1 This specification covers pipe piles with protective
G 20 Test Method for Chemical Resistance of Pipeline
fusion-bonded epoxy powder coating applied by the electro-
Coatings
static spray, flocking, or fluidized bed process.
2.2 American Petroleum Institute Specification:
NOTE 1—The coating applicator is identified throughout this specifica-
API RP 5L7 Recommended Practice for Internal Fusion-
tion as the manufacturer.
Bonded Epoxy Coating of Line Pipe
1.2 Other organic coatings may be used provided they meet
2.3 National Association of Corrosion Engineers Stan-
the requirements of this specification.
dards:
1.3 Requirements for the powder coating are contained in
TM0175 Visual Standard for Surfaces of New Steel Cen-
Annex A1.
trifugally Blast Cleaned with Steel Shot or Steel Grit
1.4 This specification is applicable for orders in either SI
(NACE No. 2)
units (as Specification A 972M) or inch-pound units [as Speci-
RP0490 Holiday Detection of Fusion-Bonded Epoxy Exter-
fication A 972]. The values stated in either SI or inch-pound
nal Pipeline Coatings of 250 to 750 μm (10 to 30 mils)
units are to be regarded as standard. Within the text, the
2.4 Steel Structures Painting Council Standards:
inch-pound units are shown in brackets.
SSPC VIS 1 Visual Standards
1.5 The following precautionary statement refers to the test
SSPC-SP1 Surface Preparation Specification No. 1: Solvent
method portion only, Section 8, of this standard: This standard
Cleaning
does not purport to address all of the safety concerns, if any,
SSPC-SP10 Near White Blast Cleaning
associated with its use. It is the responsibility of the user of this
3. Ordering Information
standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior
3.1 Orders for pipe piles under this specification may
to use.
include the following information:
3.1.1 Specification for designation and year of issue,
2. Referenced Documents
3.1.2 Size (pipe pile outside diameter and nominal wall
2.1 ASTM Standards:
thickness),
A 252 Specification for Welded and Seamless Steel Pipe
3.1.3 Quantity.
Piles
3.1.4 Length,
B 117 Practice for Operating Salt Spray (Fog) Apparatus
3.1.5 Portions to be coated (full length or distance from
D 4060 Test Method for Abrasion Resistance of Organic
end),
Coatings by the Taber Abraser
3.1.6 Requirements for certifications (see 4.1 and 12.1),
G 8 Test Method for Cathodic Disbonding of Pipeline
3.1.7 Requirements for material samples (see 4.3),
Coatings
3.1.8 Requirements for patching material (see 4.4),
G 12 Test Method for Nondestructive Measurement of Film
3.1.9 Requirements for visual standards for surface cleaning
Thickness of Pipeline Coatings on Steel
comparison (see 5.1),
3.1.10 Requirements for test frequency (see 8.1, 8.2), and
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and Related Alloys and is under the direct responsibility of
Subcommittee A01.09 on Carbon Steel Tubular Products.
Current edition approved March 10, 2000. Published May 2000. Originally Available from the American Petroleum Institute, 1220 L St., Washington DC
published as A 972/A 972M-97. Last previous edition A 972/A 972M-99. 20005.
2 7
Annual Book of ASTM Standards, Vol 01.01. Available from the National Association of Corrosion Engineers, 1440 South
Annual Book of ASTM Standards, Vol 03.02. Creek, Houston, TX 77084.
4 8
Annual Book of ASTM Standards, Vol 06.01. Available from the Steel Structures Painting Council, 4400 5th Ave., Pittsburgh,
Annual Book of ASTM Standards, Vol 06.02. PA 15213.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 972/A 972M – 00
3.1.11 Requirements for inspections at the manufacturing 6.3 The powder coating shall be applied and cured in
plant (see 10.1). accordance with the powder coating manufacturer’s written
recommendations.
4. Materials and Manufacture 6.4 Areas of pipe piles not requiring coating to allow for
welding or other purposes shall be specified by the purchaser
4.1 Steel pipe piles to be coated shall meet the requirements
and shall be blocked-out during the coating application.
of Specification A 252 as ordered.
7. Requirements for Coated Pipe Piles
NOTE 2—Surface conditions such as slivers, gouges, laminations, pits,
and sharp edges may cause coating application difficulties and effort 7.1 Coating Thickness:
should be made to hold these conditions to a minimum.
7.1.1 The minimum coating thickness after curing on the
pipe piles shall be 300 μm [12 mils].
4.2 The powder coating shall meet the requirements listed in
7.1.2 The coating thickness shall be measured in accordance
Annex A1 and shall be approved by the purchaser.
with Test Method G 12 following the instructions for calibra-
4.2.1 If specified in the order, a written certification shall be
tion and use recommended by the thickness gage manufacturer.
furnished to the purchaser that properly identifies the supplied
7.2 Coating Continuity:
powder coating, batch designation of each batch used in the
7.2.1 Holiday detection shall be performed on each coated
order, quantity represented, date of manufacture, name and
pipe pile in accordance with NACE RP0490 or a 67.5 V direct
address of manufacturer, and states that the powder coating,
current, 80-k V wet-sponge holiday detector in conjunction
meets the requirements of Annex A1.
with a wetting agent.
4.3 If specified in the order, a representative 0.2 kg [8 oz.]
7.2.2 Holidays detected shall be patched in accordance with
sample from each batch of the powder coating shall be supplied
the patching material manufacturer’s written recommenda-
to the purchaser. The sample shall be packaged in an airtight
tions.
container and identified by batch designation.
8. Test Frequency
4.4 Patching material shall be compatible with the powder
coating and recommended by the manufacturer of the powder
8.1 Measure the coating thickness on a minimum of every
th
coating. If specified in the order, patching material shall be 10 pipe pile.
supplied to the purchaser.
8.2 Test the coating continuity over the entire coated surface
of each pipe pile.
5. Surface Preparation
9. Permissible Coating Damage and Repair of Damaged
5.1 Prior to blast cleaning, the surfaces of steel pipe piles to
Coating
be coated shall be precleaned, as required, in accordance with
9.1 Coating damage to pipe piles due to handling or other
SSPC-SP1. Steel surfaces shall be cleaned by abrasive blast
causes shall be repaired in the manufacturer’s plant with
cleaning to near-white metal in accordance with SSPC-SP10.
patching material prior to shipment.
The cleaning media used shall produce an anchor pattern
9.2 The areas of coating damage shall be prepared for the
profile of 38–100 μm [1.5–4.0 mils]. Either of the following
application of patching material by cleaning the damaged area,
visual standards of comparison shall be used to define the final
removing the damaged coating using grinders or other suitable
surface condition: SSPC-VIS 1 or NACE TM0175. Expended
means, feathering the adjacent coating, and removing all
blasting media debris and dust shall be removed from blasted
remaining residue or dust.
surfaces prior to applying the powder coating.
9.3 The application of the patching materials to the dam-
5.2 Prior to application of the fusion-bonded epoxy powder
aged areas shall be in accordance with the patc
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