By visiting this site, you accept the use of cookies. More about our cookie policy.

GOST R ISO 17642-1-2011

GOST R ISO 15353-2014 GOST P 55080-2012 GOST R ISO 16962-2012 GOST R ISO 10153-2011 GOST R ISO 10280-2010 GOST R ISO 4940-2010 GOST R ISO 4943-2010 GOST R ISO 14284-2009 GOST R ISO 9686-2009 GOST R ISO 13899-2-2009 GOST 18895-97 GOST 12361-2002 GOST 12359-99 GOST 12358-2002 GOST 12351-2003 GOST 12345-2001 GOST 12344-88 GOST 12350-78 GOST 12354-81 GOST 12346-78 GOST 12353-78 GOST 12348-78 GOST 12363-79 GOST 12360-82 GOST 17051-82 GOST 12349-83 GOST 12357-84 GOST 12365-84 GOST 12364-84 STATE STANDARD P 51576-2000 GOST 29117-91 GOST 12347-77 GOST 12355-78 GOST 12362-79 GOST 12352-81 GOST P 50424-92 STATE STANDARD P 51056-97 GOST P 51927-2002 GOST P 51928-2002 GOST 12356-81 GOST R ISO 13898-1-2006 GOST R ISO 13898-3-2007 GOST R ISO 13898-4-2007 GOST R ISO 13898-2-2006 STATE STANDARD P 52521-2006 GOST P 52519-2006 GOST R 52520-2006 GOST P 52518-2006 GOST 1429.14-2004 GOST 24903-81 GOST 22662-77 GOST 6012-2011 GOST 25283-93 GOST 18318-94 GOST 29006-91 GOST 16412.4-91 GOST 16412.7-91 GOST 25280-90 GOST 2171-90 GOST 23401-90 GOST 30642-99 GOST 25698-98 GOST 30550-98 GOST 18898-89 GOST 26849-86 GOST 26876-86 GOST 26239.5-84 GOST 26239.7-84 GOST 26239.3-84 GOST 25599.4-83 GOST 12226-80 GOST 23402-78 GOST 1429.9-77 GOST 1429.3-77 GOST 1429.5-77 GOST 19014.3-73 GOST 19014.1-73 GOST 17235-71 GOST 16412.5-91 GOST 29012-91 GOST 26528-98 GOST 18897-98 GOST 26529-85 GOST 26614-85 GOST 26239.2-84 GOST 26239.0-84 GOST 26239.8-84 GOST 25947-83 GOST 25599.3-83 GOST 22864-83 GOST 25599.1-83 GOST 25849-83 GOST 25281-82 GOST 22397-77 GOST 1429.11-77 GOST 1429.1-77 GOST 1429.13-77 GOST 1429.7-77 GOST 1429.0-77 GOST 20018-74 GOST 18317-94 STATE STANDARD P 52950-2008 GOST P 52951-2008 GOST 32597-2013 GOST P 56307-2014 GOST 33731-2016 GOST 3845-2017 STATE STANDARD P ISO 17640-2016 GOST 33368-2015 GOST 10692-2015 GOST P 55934-2013 GOST P 55435-2013 STATE STANDARD P 54907-2012 GOST 3845-75 GOST 11706-78 GOST 12501-67 GOST 8695-75 GOST 17410-78 GOST 19040-81 GOST 27450-87 GOST 28800-90 GOST 3728-78 GOST 30432-96 GOST 8694-75 GOST R ISO 10543-99 GOST R ISO 10124-99 GOST R ISO 10332-99 GOST 10692-80 GOST R ISO 17637-2014 GOST P 56143-2014 GOST R ISO 16918-1-2013 GOST R ISO 14250-2013 GOST P 55724-2013 GOST R ISO 22826-2012 GOST P 55143-2012 GOST P 55142-2012 GOST R ISO 17642-2-2012 GOST R ISO 17641-2-2012 GOST P 54566-2011 GOST 26877-2008 GOST R ISO 17641-1-2011 GOST R ISO 9016-2011 GOST R ISO 17642-1-2011 STATE STANDARD P 54790-2011 GOST P 54569-2011 GOST P 54570-2011 STATE STANDARD P 54153-2010 GOST R ISO 5178-2010 GOST R ISO 15792-2-2010 GOST R ISO 15792-3-2010 GOST P 53845-2010 GOST R ISO 4967-2009 GOST 6032-89 GOST 6032-2003 GOST 7566-94 GOST 27809-95 GOST 22974.9-96 GOST 22974.8-96 GOST 22974.7-96 GOST 22974.6-96 GOST 22974.5-96 GOST 22974.4-96 GOST 22974.3-96 GOST 22974.2-96 GOST 22974.1-96 GOST 22974.13-96 GOST 22974.12-96 GOST 22974.11-96 GOST 22974.10-96 GOST 22974.0-96 GOST 21639.9-93 GOST 21639.8-93 GOST 21639.7-93 GOST 21639.6-93 GOST 21639.5-93 GOST 21639.4-93 GOST 21639.3-93 GOST 21639.2-93 GOST 21639.0-93 GOST 12502-67 GOST 11878-66 GOST 1763-68 GOST 13585-68 GOST 16971-71 GOST 21639.10-76 GOST 2604.1-77 GOST 11930.7-79 GOST 23870-79 GOST 11930.12-79 GOST 24167-80 GOST 25536-82 GOST 22536.2-87 GOST 22536.11-87 GOST 22536.6-88 GOST 22536.10-88 GOST 17745-90 GOST 26877-91 GOST 8233-56 GOST 1778-70 GOST 10243-75 GOST 20487-75 GOST 12503-75 GOST 21548-76 GOST 21639.11-76 GOST 2604.8-77 GOST 23055-78 GOST 23046-78 GOST 11930.11-79 GOST 11930.1-79 GOST 11930.10-79 GOST 24715-81 GOST 5639-82 GOST 25225-82 GOST 2604.11-85 GOST 2604.4-87 GOST 22536.5-87 GOST 22536.7-88 GOST 6130-71 GOST 23240-78 GOST 3242-79 GOST 11930.3-79 GOST 11930.5-79 GOST 11930.9-79 GOST 11930.2-79 GOST 11930.0-79 GOST 23904-79 GOST 11930.6-79 GOST 7565-81 GOST 7122-81 GOST 2604.3-83 GOST 2604.5-84 GOST 26389-84 GOST 2604.7-84 GOST 28830-90 GOST 21639.1-90 GOST 5640-68 GOST 5657-69 GOST 20485-75 GOST 21549-76 GOST 21547-76 GOST 2604.6-77 GOST 22838-77 GOST 2604.10-77 GOST 11930.4-79 GOST 11930.8-79 GOST 2604.9-83 GOST 26388-84 GOST 14782-86 GOST 2604.2-86 GOST 21639.12-87 GOST 22536.8-87 GOST 22536.0-87 GOST 22536.3-88 GOST 22536.12-88 GOST 22536.9-88 GOST 22536.14-88 GOST 22536.4-88 GOST 22974.14-90 GOST 23338-91 GOST 2604.13-82 GOST 2604.14-82 GOST 22536.1-88 GOST 28277-89 GOST 16773-2003 GOST 7512-82 GOST 6996-66 GOST 12635-67 GOST 12637-67 GOST 12636-67 GOST 24648-90

GOST R ISO 17642−1-2011 destructive Testing of welds of metallic materials. Tests on resistance to formation of cold cracks in welded joints. The arc welding processes. Part 1. General provisions


GOST R ISO 17642−1-2011

Group B09


NATIONAL STANDARD OF THE RUSSIAN FEDERATION

DESTRUCTIVE TESTING OF WELDED JOINTS OF METALLIC MATERIALS

Tests on resistance to formation of cold cracks in welded connections

The arc welding processes

Part 1

General provisions

Destructive tests on welds in metallic materials. Cold cracking tests for weldments. Arc welding processes. Part 1. General


OKS 25.160.40

Date of introduction 2013−01−01


Preface

The objectives and principles of standardization in the Russian Federation established by the Federal law of 27 December 2002 N 184-FZ «On technical regulation», and rules for the application of national standards of the Russian Federation — GOST R 1.0−2004 «Standardization in the Russian Federation. The main provisions"

Data on standard

1 PREPARED by the Federal state institution «Scientific-educational center «welding and control» at MGTU im. N. Uh. Bauman» (FGU «NORSK computer. N. Uh. Bauman») and the National Agency for control and welding (NAKS) on the basis of their own authentic translation into the Russian language of the standard referred to in paragraph 4

2 SUBMITTED by the Technical Committee for standardization TC 364 «welding and allied processes"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated 30 November 2011 No. 662-St

4 this standard is identical to international standard ISO 17642−1:2004* «Destructive testing of welds of metallic materials. Tests on resistance to formation of cold cracks in welded joints. The arc welding processes. Part 1. General provisions» (ISO 17642−1: «in 2004, Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Arc welding processes — Part 1: General»).
________________
* Access to international and foreign documents mentioned here and below, you can get a link on the website shop.cntd.ru. — Note the manufacturer’s database.

In applying this standard it is recommended to use instead of the referenced international standards corresponding national standards, the details of which are given in Appendix YES

5 INTRODUCED FOR THE FIRST TIME


Information about the changes to this standard is published in the annually issued reference index «National standards», and the text changes and amendments — in monthly indexes published information «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in a monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

Introduction


ISO 17642−1 by the European Committee for standardization (CEN) in collaboration with technical Committee ISO/TC 44 «welding and allied processes», Subcommittee SC 5 «Testing and weld inspection» in accordance with the Agreement on technical cooperation between ISO and SEN (Vienna Agreement).

ISO 17642 consists of the following parts, under the General name of «Destructive testing of welds of metallic materials. Tests on resistance to formation of cold cracks in welded joints. The arc welding processes»:

— part 1. General provisions;

— part 2. Tests with the natural stiffness;

— part 3. Tests with the application of an external load.

1 Scope


This standard contains the basic provisions relating to formation of cold cracks and principles of testing on the resistance to he of welded joints. These tests may be used to determine the resistance to cold cracking welding consumables, the base metal and the weld metal. The most common tests.

Also includes the test procedure, resistance to formation of cold cracks. Classification and field of application of the test given in EN ISO 17642−2 and EN ISO 17642−3.

2 Normative references


This standard uses the regulatory references to the following international standards. Subsequent amendments or modifications are valid for dated references of this standard only after the introduction of amendments and changes to it. For undated references the latest applicable edition of the referenced document (including amendments thereto).

EN ISO 17642−2 Destructive testing of welds of metallic materials. Tests on resistance to formation of cold cracks in welded joints. The arc welding processes. Part 2. Tests with a natural stiffness (ISO 17642−2:2005)

EN ISO 17642−2 Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Arc welding processes — Part 2: Self-restraint tests (ISO 17642−2:2005)

EH ISO 17642−3 Destructive testing of welds of metallic materials. Tests on resistance to formation of cold cracks in welded joints. The arc welding processes. Part 3. Tests with the application of an external load (ISO 17642−3:2005)

EN ISO 17642−3 Destructive tests on welds in metallic materials — Cold cracking tests for weldments — Arc welding processes — Part 3: Externally loaded tests (ISO 17642−3:2005)

3 Terms and definitions


This standard applies the following terms with respective definitions:

3.1 cold cracks (cold cracks): Local cracks (intergranular or transcrystalline), resulting from critical combinations of microstructure, stress and hydrogen content.

Note 1 — the Cold cracks also known as hydrogen or delayed cracking.

Note 2 — the Cold cracks occur at temperatures below a solidus temperature after an undetermined number of days after welding.

3.2 test procedure, resistance to cold cracking (cold cracking test procedures): Procedures used for determining the resistance to cold cracking of the base metal, weld metal and welded joints with reference to applicable welding procedure.

3.3 tests with a natural stiffness (self-restraint tests): Tests in which the loading of the sample generates residual stresses during and after welding of the clamped node.

3.4 testing with application of an external load (externally loaded tests): Tests in which voltages in the sample are the result of the test procedure with the application of an external load.

4 Main provisions


Cold cracks occur after complete cooling at the critical combination of microstructure, stress and hydrogen content.

The microstructure is mainly determined by the chemical composition and cooling time in the temperature range between 800 °C and 500 °C (ГОСТ Р ИСО 17642-1-2011 Испытания разрушающие сварных швов металлических материалов. Испытания на сопротивляемость образованию холодных трещин в сварных соединениях. Процессы дуговой сварки. Часть 1. Общие положения8/5).

Voltage is the result of the influence, primarily, the possible level of the stress state, i.e. the yield strength of the material and the stresses near the weld directly after welding, due to the restriction of deformation and shrinkage of the metal.

The hydrogen content depends on application of hydrogen as a function of moisture coating of the electrodes or of the moisture flux and diffusion of hydrogen as a function of heating temperature: pre, in between welding passes, and after welding.

Note — For steels in which the transition point AC1 is much lower 500 °C, more typical is the cooling time between 700 °C and 300 °C.


The test procedures for resistance to cold cracking using the samples with natural stiffness, the stresses in the test are generated only as a result of the shrinkage of the weld metal. Testing types and their main uses is given in table 1.


Table 1 — Tests for resistance to cold cracking in the samples with a natural stiffness (see EN ISO 17642−2) and their application

   
The type of test
Application
CTS-test (CTS — test) Evaluation of the main, welding materials and welding procedures
Test with a Y-shaped cut (Tekken test)

Test with U-shaped cut (Lehigh test)
Definition:

the least energy during welding;

— the minimum preheat temperature;

— the minimum temperature related heating;

— most of the content of diffusion hydrogen
Note — the Procedure provides a qualitative assessment (there are cracks/no cracks) or quantitative evaluation (definition of the boundary conditions that determine the presence or absence of cracks).



In the test procedure for resistance to cold cracking with the application of an external load on the sample is exposed using an appropriate loading device force that creates a certain tension. The types of tests and their application are given in table 2.


Table 2 — Tests for resistance to formation of cold cracks under external loads (see EN ISO 17642−3) and their application

   
The type of test
Application
The implant test (Implant test) Assessment of welding and basic materials.

Definition:

the least energy during welding;

— the minimum preheat temperature;

— the minimum temperature related heating;

— the minimum heating temperature after completion of welding;

— most of the content of diffusion hydrogen;

— critical stress
Note — the Procedure provides a qualitative assessment (there are cracks/no cracks, the only test) or quantitative evaluation (definition of the boundary conditions that determine the presence or absence of cracks).

App YES (reference). Information about the compliance of the referenced international standards reference the national standards of the Russian Federation

App YES
(reference)



Table YES.1

     
Marking the reference international standard The degree of compliance Designation and name of the relevant national standard
EN ISO 17642−2
- *
EN ISO 17642−3
- *
* The corresponding national standard is missing. Prior to its adoption, it is recommended to use the translation into Russian language of this international standard. The translation of this international standard is the National Agency for control and welding (NAKS).