ASTM F1330-91(2023)
(Guide)Standard Guide for Metallic Abrasive Blasting to Descale the Interior of Pipe
Standard Guide for Metallic Abrasive Blasting to Descale the Interior of Pipe
SIGNIFICANCE AND USE
3.1 The maximum length and minimum diameter of the pipe shall be determined by the capacity of the blast equipment used.
3.2 This guide is recommended for removing mill scale, rust scale, paints, zincs, and oxides.
SCOPE
1.1 This guide covers metallic abrasive blasting to descale the interior of carbon steel pipe.
1.2 This guide is recommended for use in conjunction with an abrasive reclamation system.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.4 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.
1.5 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
Relations
Standards Content (Sample)
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: F1330 − 91 (Reapproved 2023) An American National Standard
Standard Guide for
Metallic Abrasive Blasting to Descale the Interior of Pipe
This standard is issued under the fixed designation F1330; 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 2.3 Other Documents:
SSPC SP10 Surface Preparation Specifications
1.1 This guide covers metallic abrasive blasting to descale
SFSA 20-66 Standard Specification for Cast Steel Abra-
the interior of carbon steel pipe.
sives
1.2 This guide is recommended for use in conjunction with
an abrasive reclamation system.
3. Significance and Use
1.3 The values stated in SI units are to be regarded as
3.1 The maximum length and minimum diameter of the pipe
standard. The values given in parentheses are mathematical
shall be determined by the capacity of the blast equipment
conversions to inch-pound units that are provided for informa-
used.
tion only and are not considered standard.
3.2 This guide is recommended for removing mill scale, rust
1.4 This standard does not purport to address all of the
scale, paints, zincs, and oxides.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. General Requirements
priate safety, health, and environmental practices and deter-
4.1 Before blasting, pipe shall be dry and free of slag and
mine the applicability of regulatory limitations prior to use.
weld spatter which would not be removed by abrasive blasting.
1.5 This international standard was developed in accor-
Pipe shall also be free of loose dust and debris which might
dance with internationally recognized principles on standard-
hamper the effectiveness of abrasive blasting.
ization established in the Decision on Principles for the
4.2 Abrasive blasting shall be accomplished in a dry area
Development of International Standards, Guides and Recom-
with the ambient air condition such that condensation does not
mendations issued by the World Trade Organization Technical
occur.
Barriers to Trade (TBT) Committee.
4.3 Shot and blasting equipment shall be stored at a tem-
2. Referenced Documents
perature not less than −13 °C (10 °F) above the dew point of
2.1 ASTM Standards:
the surrounding area.
D2200 Practice for Use of Pictorial Surface Preparation 4.3.1 Abrasive reclamation system shall include a filtration
Standards and Guides for Painting Steel Surfaces
system capable of removing oxides, debris, dust, shot/grit
E18 Test Methods for Rockwell Hardness of Metallic Ma- fragments, and fines.
terials
4.4 Compressed air system shall be equipped with moisture
2.2 SAE Standards:
removal devices capable of reducing the dew point of the air at
J444 Cast Shot and Grit Size Specifications for Peening
the nozzle to −18 °C (approximately 0 °F) or less.
Cleaning
4.5 Hoses shall have the maximum practical diameter and
J827 Cast Steel Shot
shall be as short as possible.
4.6 Nozzles shall have the maximum possible aperture as
determined by the capacity of the blast equipment and as
This guide is under the jurisdiction of ASTM Committee F25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
limited by the pipe diameter.
Machinery and Piping Systems.
4.7 Internal pipe cleaning nozzle assemblies are commer-
Current edition approved May 1, 2023. Published June 2023. Originally
approved in 1991. Last previous edition approved in 2018 as F1330 – 91 (2018).
cially available and shall be used where required.
DOI: 10.1520/F1330-91R23.
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 Available from Society for Protective Coatings (SSPC), 800 Trumbull Dr.,
the ASTM website. Pittsburgh, PA 15205, http://www.sspc.org.
3 5
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, Available from Steel Founders’ Society of America (SFSA), 780 McArdle Dr.,
PA 15096, http://www.sae.org. Unit G, Crystal Lake, IL 60014, http://www.sfsa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1330 − 91 (2023)
4.8.1 Iron or grit may be used if desired.
4.8.2 Cast steel shot and grit mixtures shall be sized in
accordance with SAE J444.
4.8.3 Reclaimed shot and grit shall be of the same quality as
the original material.
4.9 Cast steel shot shall be manufactured in accordance with
SAE J827 and tempered to a hardness of 40–50 Rockwell C in
FIG. 1 For 20 mm to 50 mm (Approximately ⁄4 in. to 2 in.) Inside
accordance with Test Methods E18 (see Table 1).
Diameter Pipe
4.10 Cast steel grit shall be manufactured in accordance
with SFSA 20-66 and tempered to a hardness of 55–65
Rockwell C in accordance with Test Methods E18 (see Table
2).
4.11 Shot and grit size shall be determined by the following
criteria:
4.11.1 Smaller shot and grit produces more impacts per inch
and is therefore more effective for removing paints and
corrosion products.
FIG. 2 For 50 mm to 125 mm (Approximately 2 in. to 5 in.) Inside
4.11.2 Larger shot and grit produces more kinetic energy per
Diameter Pipe
impact and is therefore more efficient for removing heavier
deposits such as mill scale.
4.12 If surface type and profile is specified, abrasive shall be
selected using the following criteria:
4.12.1 Shot produces a wavy rounded surface profile which
increases coating area coverage.
4.12.2 Grit produces a sharp angular profile which forms a
better anchor pattern for most coatings.
4.12.3 Table 3 lists some typical maximum profiles pro-
duced by some commercial abrasive media.
FIG. 3 For 125 mm to 305 mm (Approximately 5 in. to 12 in.) In-
4.13 Blasting shall be accomplished with a minimum of
side Diameter Pipe
620 kPa (90 psi) dry air pressure at the nozzle.
A,B
TABLE 1 Steel Shot and Grit Specifications
Property Shot Grit
Size:
New abrasive as All material is screened to meet or exceed SAE J444
manufa
...
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