Standard Practice for Application of Thermal Spray Aluminum (TSA) Coating to Carbon Steel Pipe

SIGNIFICANCE AND USE
5.1 The quality and effectiveness of TSA coatings is dependent on a variety of factors including surface preparation, coating materials, environmental conditions and control of the applications process. This practice addresses the fundamental variables and concerns relative to proper TSA application.  
5.2 TSA has been proven to offer resistance to the atmospheric corrosion of carbon steel pipe and to corrosion under insulation (CUI). The publication NACE No. 12/AWS C2.23M/SSPC-CS 23.00, AWS C2.18 and NACE SP0198 provide additional information regarding the performance of TSA coatings.
SCOPE
1.1 This practice defines the minimum requirements for the application of Thermal Spray Aluminum (TSA) coatings to carbon steel pipe for the purpose of preventing atmospheric corrosion or corrosion under insulation. This practice is intended to be effective for TSA coatings applied at pipe manufacturing facilities or at on-site assembly locations.  
1.2 This practice is for the application of TSA to the external surfaces of piping to prevent atmospheric corrosion of insulated and non-insulated surfaces.
Note 1: TSA has been found useful for temperatures up to 1000°F (540°C) for uninsulated surfaces and for preventing corrosion under insulation for pipes operating in the range of 25°F to 300°F (–4°C to 150°C) surface temperature.  
1.3 This practice includes requirements for surface preparation, materials, application and quality control of TSA applied to carbon steel piping at the pipe manufacturing facility or at an on-site-assembly location.  
1.4 This practice is expressed in both inch-pound and SI units. However, unless the order specifies the use of metric values, inch-pound units shall be used.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Oct-2023
Current Stage
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ASTM A1117-23 - Standard Practice for Application of Thermal Spray Aluminum (TSA) Coating to Carbon Steel Pipe
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A1117 − 23
Standard Practice for
Application of Thermal Spray Aluminum (TSA) Coating to
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Carbon Steel Pipe
This standard is issued under the fixed designation A1117; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This practice defines the minimum requirements for the
application of Thermal Spray Aluminum (TSA) coatings to A941 Terminology Relating to Steel, Stainless Steel, Related
carbon steel pipe for the purpose of preventing atmospheric Alloys, and Ferroalloys
corrosion or corrosion under insulation. This practice is in- C633 Test Method for Adhesion or Cohesion Strength of
tended to be effective for TSA coatings applied at pipe Thermal Spray Coatings
manufacturing facilities or at on-site assembly locations. D4417 Test Methods for Field Measurement of Surface
Profile of Blast Cleaned Steel
1.2 This practice is for the application of TSA to the
D7091 Practice for Nondestructive Measurement of Dry
external surfaces of piping to prevent atmospheric corrosion of
Film Thickness of Nonmagnetic Coatings Applied to
insulated and non-insulated surfaces.
Ferrous Metals and Nonmagnetic, Nonconductive Coat-
NOTE 1—TSA has been found useful for temperatures up to 1000°F
ings Applied to Non-Ferrous Metals
(540°C) for uninsulated surfaces and for preventing corrosion under
insulation for pipes operating in the range of 25°F to 300°F (–4°C to
2.2 Other Standards:
150°C) surface temperature.
AWS C2.18 Guide for the Protection of Steel with Thermal
3
1.3 This practice includes requirements for surface Sprayed Coatings of Aluminum and Zinc and their Alloys
preparation, materials, application and quality control of TSA AWS C2.25/C2.25M Specification for Thermal Spray
applied to carbon steel piping at the pipe manufacturing facility Feedstock-Wire and Rods
or at an on-site-assembly location. NACE No. 2/SSPC-SP 10 Near-White Metal Blast Clean-
4
ing
1.4 This practice is expressed in both inch-pound and SI
NACE No. 12/AWS C2.23M/SSPC-CS 23.00 Specification
units. However, unless the order specifies the use of metric
for the Application of Thermal Spray Coatings (Metalliz-
values, inch-pound units shall be used.
ing) of Aluminum, Zinc, and Their Alloys and Composites
1.5 This standard does not purport to address all of the
for the Corrosion Protection of Steel
safety concerns, if any, associated with its use. It is the
NACE SP0198 The Control of Corrosion Under Thermal
responsibility of the user of this standard to establish appro-
Insulation and Fireproofing Materials–A Systems Ap-
priate safety, health, and environmental practices and deter-
proach
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor- 3. Terminology
dance with internationally recognized principles on standard-
3.1 Terms used in multiple A01 standards are defined in
ization established in the Decision on Principles for the
Terminology A941.
Development of International Standards, Guides and Recom-
3.2 Definitions of Terms Specific to This Standard:
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel, the ASTM website.
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Available from American Welding Society (AWS), 8669 NW 36 St., #130,
A01.09 on Carbon Steel Tubular Products. Miami, FL 33166-6672, http://www.aws.org.
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Current edition approved Nov. 1, 2023. Published November 2023. DOI: Available from Association for Materials Protection and Performance (AMPP),
10.1520/A1117-23. 15835 Park Ten Place, Houston, TX 77084, https://www.ampp.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A1117 − 23
3.2.1 electric arc spraying, n—a thermal spray coating 6.4 All openings to the interior of the pipe or spool piece
process, in which consumable metal wire is melted by heating shall be sealed to prevent accidental application of TSA to the
with an electric arc and then propell
...

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