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ASTM E309-95(2001)

(Practice)

Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation

Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation

SCOPE
1.1 This practice  covers a procedure for applying the eddy-current method to detect discontinuities in ferromagnetic pipe and tubing (Note 1) where the article being examined is rendered substantially non-magnetic by the application of a concentrated, strong magnetic field in the region adjacent to the examining coil.
Note 1—For convenience, the term tube or tubular product will hereafter be used to refer to both pipe and tubing.
1.2 The procedure is specifically applicable to eddy-current examination methods using an encircling-coil assembly. However, eddy-current techniques that employ either fixed or rotating probe-coil assemblies may be used to either enhance discontinuity sensitivity on the large diameter tubular products or to maximize the response received from a particular type of discontinuity.  
1.3 This practice is intended for use on tubular products having outside diameters from approximately 1/4 to 10 in. (6.35 to 254.0 mm). These techniques have been used for smaller and larger sizes however, and may be specified upon contractural agreement between the purchaser and the supplier.

General Information

Status
Historical
Publication Date
09-Oct-1995
ICS
23.040.10 - Iron and steel pipes
77.140.75 - Steel pipes and tubes for specific use
Technical Committee
E07 - Nondestructive Testing
Drafting Committee
E07.07 - Electromagnetic Method
Current Stage
Ref Project

Relations

Replaces
ASTM E309-95 - Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
Effective Date
10-Oct-1995
Replaced By
ASTM E309-95(2006) - Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
Effective Date
01-Jul-2006
Referred By
ASTM A53/A53M-22 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
Effective Date
10-Oct-1995
Referred By
ASTM A790/A790M-23 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Effective Date
10-Oct-1995
Referred By
ASTM E543-21 - Standard Specification for Agencies Performing Nondestructive Testing
Effective Date
10-Oct-1995
Referred By
ASTM B751-21 - Standard Specification for General Requirements for Nickel and Nickel Alloy Welded Tube
Effective Date
10-Oct-1995
Referred By
ASTM A450/A450M-21 - Standard Specification for General Requirements for Carbon and Low Alloy Steel Tubes
Effective Date
10-Oct-1995
Referred By
ASTM A106/A106M-19a - Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
Effective Date
10-Oct-1995
Referred By
ASTM A795/A795M-21 - Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use
Effective Date
10-Oct-1995
Referred By
ASTM A513/A513M-20a - Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
Effective Date
10-Oct-1995
Referred By
ASTM A335/A335M-23 - Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Effective Date
10-Oct-1995
Referred By
ASTM A905-19 - Standard Specification for Steel Wire, Pressure Vessel Winding
Effective Date
10-Oct-1995
Referred By
ASTM A1016/A1016M-18a - Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
Effective Date
10-Oct-1995
Referred By
ASTM E571-19 - Standard Practice for Electromagnetic (Eddy-Current) Examination of Nickel and Nickel Alloy Tubular Products
Effective Date
10-Oct-1995
Referred By
ASTM A587-22 - Standard Specification for Electric-Resistance-Welded Low-Carbon Steel Pipe for the Chemical Industry
Effective Date
10-Oct-1995

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ASTM E309-95(2001) - Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic SaturationASTM E309-95(2001) - Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
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ASTM E309-95(2001) - Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 309 – 95 (Reapproved 2001)
Standard Practice for
Eddy-Current Examination of Steel Tubular Products Using
1
Magnetic Saturation
This standard is issued under the fixed designation E 309; 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.
This specification has been approved for use by agencies of the Department of Defense.
4
1. Scope Certification of Nondestructive Testing Personnel
2 2.3 Military Standard:
1.1 This practice covers a procedure for applying the
MIL-STD-410E Nondestructive Testing Personnel Qualifi-
eddy-current method to detect discontinuities in ferromagnetic
5
cation and Certification
pipe and tubing (Note 1) where the article being examined is
rendered substantially non-magnetic by the application of a
3. Terminology
concentrated,strongmagneticfieldintheregionadjacenttothe
3.1 General—Standard terminology relating to electromag-
examining coil.
netic examination may be found in Terminology E 1316,
NOTE 1—For convenience, the term tube or tubular product will
Section C, “Electromagnetic Testing.”
hereafter be used to refer to both pipe and tubing.
4. Summary of Practice
1.2 The procedure is specifically applicable to eddy-current
examination methods using an encircling-coil assembly. How- 4.1 The examination is conducted using one of two general
ever, eddy-current techniques that employ either fixed or
techniques shown in Fig. 1.
rotating probe-coil assemblies may be used to either enhance 4.1.1 Onetechniqueemploysoneormoreexciterandsensor
discontinuity sensitivity on the large diameter tubular products
coils that encircle the tube and through which the tubular
or to maximize the response received from a particular type of product to be examined is passed. Some circuit configurations
discontinuity.
employ one or more coils that concurrently function as both
1.3 This practice is intended for use on tubular products exciters and sensors. Alternating current passes through the
1
having outside diameters from approximately ⁄4 to 10 in. (6.35
exciting coil which, by reason of its proximity, induces
to254.0mm).Thesetechniqueshavebeenusedforsmallerand corresponding currents (eddy currents) to flow in the tubular
larger sizes however, and may be specified upon contractual product. The sensor coil detects the resultant electromagnetic
agreement between the purchaser and the supplier.
flux related to these currents.The presence of discontinuities in
the tubular product will alter the normal flow of currents and
2. Referenced Documents
this change is detected by the sensor. The encircling-coil
2.1 ASTM Standards:
technique is capable of examining the entire circumference of
E 543 Practice for Agencies Performing Nondestructive
a tubular product.
3
Testing
4.1.2 Another technique employs a probe coil with one or
3
E 1316 Terminology for Nondestructive Examinations
more sensors that are in close proximity to the surface of the
2.2 Other Documents:
tubular product to be examined. Since the probe is generally
SNT-TC-1A Recommended Practice for Personnel Qualifi-
small and does not encircle the article being examined, it
4
cation and Certification in Nondestructive Testing
examines only a limited area in the vicinity of the probe. This
ANSI/ASNT CP-189 ASNT Standard for Qualification and
technique is frequently used for examination of welded tubular
productsinwhichonlytheweldisexaminedbyscanningalong
the weld zone.
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
4.1.3 The magnetic permeability of ferromagnetic materials
structive Testing, and is the direct responsibility of Subcommittee E07.07 on
severely limits the depth of penetration of induced eddy
Electromagnetic Methods.
currents. Furthermore, the permeability variations inherent in
Current edition approved October 10, 1995. Published December 1995. Origi-
nally published as E 309 – 66 T. Last previous edition E 309 – 93a.
ferromagnetic tubular products often cause anomalous test
2
For ASME Boiler and Pressure Vessel Code applications see related Recom-
mended Practice SE 309 in Section V of that Code.
3
Annual Book of ASTM Standards, Vol 03.03.
4 5
Available from American Society for Nondestructive Testing, 1711 Arlingate Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Plaza, P.O. Box 28518, Columbus, OH 43228-0518. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E 309 – 95 (2001)
(a)Encircling Coil.
(b) Probe
...

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5.1 The purpose of this practice is to outline a procedure for the detection and location of discontinuities such as pits, voids, inclusions, cracks, or abrupt dimensional variations in ferromagnetic tubing using the electromagnetic (eddy current) method. Furthermore, the relative severity of a discontinuity may be indicated, and a rejection level may be set with respect to the magnitude of the indication.  
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1.1 This practice2 covers a procedure for applying the eddy current method to detect discontinuities in ferromagnetic pipe and tubing (Note 1) where the article being examined is rendered substantially non-magnetic by the application of a concentrated, strong magnetic field in the region adjacent to the examining coil.  
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1.2 The procedure is specifically applicable to eddy current testing methods using an encircling-coil assembly. However, eddy current techniques that employ either fixed or rotating probe-coil assemblies may be used to either enhance discontinuity sensitivity on the large diameter tubular products or to maximize the response received from a particular type of discontinuity.  
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SIGNIFICANCE AND USE
5.1 The purpose of this practice is to outline a procedure for the detection and location of discontinuities such as pits, voids, inclusions, cracks, or abrupt dimensional variations in ferromagnetic tubing using the electromagnetic (eddy current) method. Furthermore, the relative severity of a discontinuity may be indicated, and a rejection level may be set with respect to the magnitude of the indication.  
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SCOPE
1.1 This specification covers UNS N06002, UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N10362, UNS N06230, UNS N06600, UNS N06617, UNS N06625, UNS N08020, UNS N08026, UNS N08024, UNS N08120, UNS N08926, UNS N08367, UNS N10242, UNS N10276, UNS N10665, UNS N10675, UNS N12160, UNS R20033, UNS N06059, UNS N06686, UNS N10629, UNS N08031, UNS N06045, UNS N06025, UNS N06699, and UNS R305562 billets and bars for reforging.  
1.2 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.  
1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.4 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.

  • Technical specification
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    English language
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  • Technical specification
    5 pages
    English language
    sale 15% off