Standard Test Method for Determination of Crack-Tip-Opening Angle of Ferritic Steels Using DWTT-Type Specimens

SCOPE
1.1 This test method covers the determination of fracture propagation toughness in terms of the steady-state crack-tip-opening angle (CTOA) using the drop-weight tear test (DWTT)-type specimen. The method is applicable to ferritic steels that exhibit predominantly ductile fracture with at least 85 % shear area measured according to Test Method E436 - Standard Test Method for Drop-Weight Tear Tests of Ferritic Steels. This test method applies to ferritic steels with thicknesses between 6 mm and 20 mm. Annex A1 describes the method to test ferritic steels with thicknesses between 20 mm to 32 mm.  
1.2 In terms of apparatus, specimen design, and test methodology, this test method draws from Test Method E436 and API 5L3 - Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe.  
1.3 The development of this test method has been driven by the need to design for fast ductile fracture arrest of axial running cracks in steel high-pressure gas pipelines (1). 2The purpose has been to develop a test to characterize fracture propagation resistance in a form suitable for use as a pipe mill test (2). The traditional Charpy test has been shown to be inadequate for modern high toughness pipe steels (1). This test method measures fracture propagation resistance in terms of crack-tip opening angle, and is used to characterize ferritic steels.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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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Publication Date
31-Aug-2020
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Drafting Committee
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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: E3039 − 20
Standard Test Method for
Determination of Crack-Tip-Opening Angle of Ferritic Steels
1
Using DWTT-Type Specimens
This standard is issued under the fixed designation E3039; 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 priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This test method covers the determination of fracture
1.6 This international standard was developed in accor-
propagation toughness in terms of the steady-state crack-tip-
dance with internationally recognized principles on standard-
opening angle (CTOA) using the drop-weight tear test
ization established in the Decision on Principles for the
(DWTT)-type specimen. The method is applicable to ferritic
Development of International Standards, Guides and Recom-
steels that exhibit predominantly ductile fracture with at least
mendations issued by the World Trade Organization Technical
85 % shear area measured according to Test Method E436 -
Barriers to Trade (TBT) Committee.
Standard Test Method for Drop-Weight Tear Tests of Ferritic
Steels. This test method applies to ferritic steels with thick-
2. Referenced Documents
nesses between 6 mm and 20 mm. Annex A1 describes the
3
2.1 ASTM Standards:
method to test ferritic steels with thicknesses between 20 mm
E177 Practice for Use of the Terms Precision and Bias in
to 32 mm.
ASTM Test Methods
1.2 In terms of apparatus, specimen design, and test
E436 Test Method for Drop-Weight Tear Tests of Ferritic
methodology, this test method draws from Test Method E436
Steels
and API 5L3 - Recommended Practice for Conducting Drop-
E691 Practice for Conducting an Interlaboratory Study to
Weight Tear Tests on Line Pipe.
Determine the Precision of a Test Method
1.3 The development of this test method has been driven by E1823 TerminologyRelatingtoFatigueandFractureTesting
E1942 Guide for Evaluating DataAcquisition Systems Used
the need to design for fast ductile fracture arrest of axial
2
running cracks in steel high-pressure gas pipelines (1). The in Cyclic Fatigue and Fracture Mechanics Testing
E2298 Test Method for Instrumented Impact Testing of
purpose has been to develop a test to characterize fracture
propagation resistance in a form suitable for use as a pipe mill Metallic Materials
E2472 Test Method for Determination of Resistance to
test (2). The traditional Charpy test has been shown to be
inadequate for modern high toughness pipe steels (1). This test Stable Crack Extension under Low-Constraint Conditions
4
method measures fracture propagation resistance in terms of
2.2 ISO Standards:
crack-tip opening angle, and is used to characterize ferritic
ISO 22889 Metallic materials — Method of Test for the
steels.
Determination of Resistance to Stable Crack Extension
Using Specimens of Low Constraint
1.4 The values stated in SI units are to be regarded as
ISO 14456 Steel — Charpy V-notch Pendulum Impact Test
standard. No other units of measurement are included in this
— Instrumented Test Method
standard.
5
2.3 API Recommended Practice:
1.5 This standard does not purport to address all of the
API Recommended Practice 5L3 Drop-WeightTearTests on
safety concerns, if any, associated with its use. It is the
Line Pipe
responsibility of the user of this standard to establish appro-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction ofASTM Committee E08 on Fatigue contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Fracture and is the direct responsibility of Subcommittee E08.07 on Fracture Standards volume information, refer to the standard’s Document Summary page on
Mechanics. the ASTM website.
4
Current edition approved Sept. 1, 2020. Published September 2020. Originally Available from International Organization for Standardization (ISO), ISO
ɛ1
approved in 2016. Last previous edition approved in 2018 as E3039–18 . DOI: Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,
10.1520/E3039–20. Geneva, Switzerland, http://www.iso.org.
2 5
The boldface numbers in parentheses refer to a list of references at the end of Available from American Petroleum Institute (API), 1220 L. St., NW,
this standard. Washington, DC 20005-4070, http://www.api.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 194
...

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.
´1
Designation: E3039 − 18 E3039 − 20
Standard Test Method for
Determination of Crack-Tip-Opening Angle of PipeFerritic
1
Steels Using DWTT-Type Specimens
This standard is issued under the fixed designation E3039; 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
ε NOTE—Fig 6. was editorially corrected in September 2019.
1. Scope
1.1 This test method covers the determination of fracture propagation toughness in terms of the steady-state crack-tip-opening
angle (CTOA) using the drop-weight tear test (DWTT)-type specimen. The method is applicable to pipeferritic steels that exhibit
predominantly ductile fracture with at least 85%85 % shear area measured according to Test Method E436 - Standard Test Method
for Drop-Weight Tear Tests of Ferritic Steels. This test method applies to steel pipesferritic steels with wall thicknesses between
6 mm and 20 mm. Annex A1 describes the method to test pipeferritic steels with wall thickness thicknesses between 20 mm to
32 mm.
1.2 In terms of apparatus, specimen design, and test methodology, this test method draws from Test Method E436 and API 5L3
- Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe.
1.3 The development of this test method has been driven by the need to design for fast ductile fracture arrest of axial running
2
cracks in steel high-pressure gas pipelines (1). The purpose has been to develop a test to characterize fracture propagation
resistance in a form suitable for use as a pipe mill test (2). The traditional Charpy test has been shown to be inadequate for modern
high toughness pipe steels (1). This test method measures fracture propagation resistance in terms of crack-tip opening angle, and
is used to characterize pipeferritic steels.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
2. Referenced Documents
3
2.1 ASTM Standards:
1
This test method is under the jurisdiction of ASTM Committee E08 on Fatigue and Fracture and is the direct responsibility of Subcommittee E08.07 on Fracture
Mechanics.
Current edition approved Nov. 1, 2018Sept. 1, 2020. Published January 2019September 2020. Originally approved in 2016. Last previous edition approved in 20162018
ɛ1
as E3039–16.–18 . DOI: 10.1520/E3039–18E0110.1520/E3039–20.
2
The boldface numbers in parentheses refer to a list of references at the end of this standard.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E3039 − 20
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E436 Test Method for Drop-Weight Tear Tests of Ferritic Steels
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1823 Terminology Relating to Fatigue and Fracture Testing
E1942 Guide for Evaluating Data Acquisition Systems Used in Cyclic Fatigue and Fracture Mechanics Testing
E2298 Test Method for Instrumented Impact Testing of Metallic Materials
E2472 Test Method for Determination of Resistance to Stable Crack Extension under Low-Constraint Conditions
4
2.2 ISO Standards:
ISO 22889 Metallic materials — Method of Test for the Determination of Resistance to Stable Crack Extension Using
Specimens of Low Constraint
ISO 14456 Steel — Charpy V-notch Pendulum Impact Test — Instrumented Test Method
5
2.3 API Recommen
...

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