ASTM E273-20
(Practice)Standard Practice for Ultrasonic Testing of the Weld Zone of Welded Pipe and Tubing
Standard Practice for Ultrasonic Testing of the Weld Zone of Welded Pipe and Tubing
ABSTRACT
This practice describes the general ultrasonic examination procedures for the detection of discontinuities in the weld and adjacent heat affected zones of welded pipe and tubing by scanning with relative motion between the search unit and pipe or tube. When contact or unfocused immersion search units are employed, this practice is intended for tubular products having specified outside diameters and wall thicknesses. And when properly focused immersion search units are employed, this practice may also be applied to material of smaller diameter and thinner wall. This practice does not establish acceptance criteria for this procedure. A pulsed ultrasonic angle beam shall be propagated in the wall of the pipe or tube by either the surface contact or immersion method. The weld line shall then be examined from both sides to ensure detection of imperfections with a shape or orientation that produces a preferential direction of reflection.
SIGNIFICANCE AND USE
5.1 The purpose of this practice is to outline a procedure for detecting weld discontinuities such as lack of fusion, pin holes, lack of penetration, longitudinal cracks, porosity and inclusions by the ultrasonic pulse-reflection method.
SCOPE
1.1 This practice2 describes general ultrasonic testing procedures for the detection of discontinuities in the weld and adjacent heat affected zones of welded pipe and tubing by scanning with relative motion between the search unit and pipe or tube. When contact or unfocused immersion search units are employed, this practice is intended for tubular products having specified outside diameters ≥2 in. (≥50 mm) and specified wall thicknesses of 1/8 to 11/16 in. (3 to 27 mm). When properly focused immersion search units are employed, this practice may also be applied to material of smaller diameter and thinner wall. When contact or immersion phased array search units are employed, this practice may also be applied to material of above-mentioned outside diameters and wall thicknesses.
Note 1: When contact or unfocused immersion search units are used, precautions should be exercised when examining pipes or tubes near the lower specified limits. Certain combinations of search unit size, frequency, thin–wall thicknesses, and small diameters could cause generation of unwanted sound waves that may produce erroneous examination results.
1.2 All surfaces of material to be examined in accordance with this practice shall be clean from scale, dirt, burrs, slag, spatter, or other conditions that would interfere with the examination results. The configuration of the weld must be such that interfering signals are not generated by reflections from it. Treatment of the inner surface and outer surface weld beads such as trimming (“scarfing”) or rolling is often required to remove protuberances that could result in spurious reflections.
1.3 This practice does not establish acceptance criteria; they must be specified by the using parties.
1.4 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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.
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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: E273 − 20
Standard Practice for
Ultrasonic Testing of the Weld Zone of Welded Pipe and
1
Tubing
This standard is issued under the fixed designation E273; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* mathematical conversions to SI units that are provided for
2 information only and are not considered standard.
1.1 This practice describes general ultrasonic testing pro-
1.5 This standard does not purport to address all of the
cedures for the detection of discontinuities in the weld and
safety concerns, if any, associated with its use. It is the
adjacent heat affected zones of welded pipe and tubing by
responsibility of the user of this standard to establish appro-
scanning with relative motion between the search unit and pipe
priate safety, health, and environmental practices and deter-
or tube.When contact or unfocused immersion search units are
mine the applicability of regulatory limitations prior to use.
employed, this practice is intended for tubular products having
1.6 This international standard was developed in accor-
specified outside diameters≥2 in. (≥50 mm) and specified wall
1 1
dance with internationally recognized principles on standard-
thicknesses of ⁄8 to 1 ⁄16 in. (3 to 27 mm). When properly
ization established in the Decision on Principles for the
focused immersion search units are employed, this practice
Development of International Standards, Guides and Recom-
mayalsobeappliedtomaterialofsmallerdiameterandthinner
mendations issued by the World Trade Organization Technical
wall. When contact or immersion phased array search units are
Barriers to Trade (TBT) Committee.
employed, this practice may also be applied to material of
above-mentioned outside diameters and wall thicknesses.
2. Referenced Documents
NOTE 1—When contact or unfocused immersion search units are used,
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precautions should be exercised when examining pipes or tubes near the 2.1 ASTM Standards:
lowerspecifiedlimits.Certaincombinationsofsearchunitsize,frequency,
E543 Specification forAgencies Performing Nondestructive
thin–wall thicknesses, and small diameters could cause generation of
Testing
unwanted sound waves that may produce erroneous examination results.
E1316 Terminology for Nondestructive Examinations
1.2 All surfaces of material to be examined in accordance
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2.2 ASNT Documents:
with this practice shall be clean from scale, dirt, burrs, slag,
Recommended Practice SNT-TC-1A Personnel Qualifica-
spatter, or other conditions that would interfere with the
tion and Certification in Nondestructive Testing
examination results. The configuration of the weld must be
ANSI/ASNT CP-189 Standard for Qualification and Certifi-
such that interfering signals are not generated by reflections
cation of Nondesctructive Testing Personnel
from it. Treatment of the inner surface and outer surface weld
5
2.3 ISO Standard:
beads such as trimming (“scarfing”) or rolling is often required
ISO 9712 Non-destructive Testing—Qualification and Cer-
to remove protuberances that could result in spurious reflec-
tification of NDT Personnel
tions.
6
2.4 AIA Standard:
1.3 This practice does not establish acceptance criteria; they
NAS 410 Certification and Qualification of Nondestructive
must be specified by the using parties.
Testing Personnel
1.4 Units—The values stated in inch-pound units are to be
regarded as standard. The values given in parentheses are
3
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
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde- Standards volume information, refer to the standard’s Document Summary page on
structive Testing and is the direct responsibility of Subcommittee E07.06 on the ASTM website.
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Ultrasonic Method. AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
Current edition approved Dec. 1, 2020. Published January 2021. Originally 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
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approved in 1965. Last previous edition approved in 2015 as E273 – 15. DOI: Available from International Organization for Standardization (ISO), 1, ch. de
10.1520/E0273-20. la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
2 6
For ASME Boiler and Pressure Vessel Code applications, see related Pr
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E273 − 15 E273 − 20
Standard Practice for
Ultrasonic Testing of the Weld Zone of Welded Pipe and
1
Tubing
This standard is issued under the fixed designation E273; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
2
1.1 This practice describes general ultrasonic testing procedures for the detection of discontinuities in the weld and adjacent heat
affected zones of welded pipe and tubing by scanning with relative motion between the search unit and pipe or tube. When contact
or unfocused immersion search units are employed, this practice is intended for tubular products having specified outside diameters
1 1
≥2 in. (≥50 mm) and specified wall thicknesses of ⁄8 to 1 ⁄16 in. (3 to 27 mm). When properly focused immersion search units are
employed, this practice may also be applied to material of smaller diameter and thinner wall. When contact or immersion phased
array search units are employed, this practice may also be applied to material of above-mentioned outside diameters and wall
thicknesses.
NOTE 1—When contact or unfocused immersion search units are used, precautions should be exercised when examining pipes or tubes near the lower
specified limits. Certain combinations of search unit size, frequency, thin–wall thicknesses, and small diameters could cause generation of unwanted sound
waves that may produce erroneous examination results.
1.2 All surfaces of material to be examined in accordance with this practice shall be clean from scale, dirt, burrs, slag, spatter, or
other conditions that would interfere with the examination results. The configuration of the weld must be such that interfering
signals are not generated by reflections from it. Treatment of the inner surface and outer surface weld beads such as trimming
(“scarfing”) or rolling is often required to remove protuberances that could result in spurious reflections.
1.3 This practice does not establish acceptance criteria,criteria; they must be specified by the using parties.
1.4 Units—The values stated in inch-pound units are to be regarded as the standard. The SI equivalents are in parentheses and may
be approximate.values given in parentheses are mathematical conversions to SI units that are provided for information only and
are not considered standard.
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 safety, health, and healthenvironmental 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.
1
This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.06 on Ultrasonic Method.
Current edition approved June 1, 2015Dec. 1, 2020. Published June 2015January 2021. Originally approved in 1965. Last previous edition approved in 20102015 as
E273E273 – 15.-10. DOI: 10.1520/E0273-15.10.1520/E0273-20.
2
For ASME Boiler and Pressure Vessel Code applications, see related Practice SE-273 in Section II of that Code.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E273 − 20
2. Referenced Documents
3
2.1 ASTM Standards:
E543 Specification for Agencies Performing Nondestructive Testing
E1316 Terminology for Nondestructive Examinations
4
2.2 ASNT Documents:
Recommended Practice SNT-TC-1A Personnel Qualification and Certification in Nondestructive Testing
ANSI/ASNT CP-189 Standard for Qualification and Certification of Nondesctructive Testing Personnel
5
2.3 ISO Standard:
ISO 9712 Non-destructive Testing—Qualification and Certification of NDT Personnel
6
2.4 AIA Standard:
NAS 410 Certification and Qualification of Nondestructive Testi
...
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