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GB/T 2652-2022 English PDF (GBT2652-2022)

GB/T 2652-2022 English PDF (GBT2652-2022)

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GB/T 2652-2022: Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints

GB/T 2652-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 25.160.40
CCS J 33
GB/T 2652-2022 / ISO 5178:2019
Replacing GB/T 2652-2008
Destructive Tests on Welds in Metallic Materials –
Longitudinal Tensile Test on Weld Metal in Fusion Welded
Joints
(ISO 5178:2019, IDT)
ISSUED ON: OCTOBER 12, 2022
IMPLEMENTED ON: OCTOBER 12, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 5
4 Symbols and Abbreviations ... 5
5 General ... 6
6 Preparation of Specimen ... 6
6.1 Sampling location ... 6
6.2 Marking ... 6
6.3 Heat treatment and/or aging ... 6
6.4 Sampling ... 6
6.5 Specimen processing ... 7
6.6 Dimensions ... 8
6.7 Surface quality ... 9
7 Test Procedure ... 9
8 Test Results ... 9
8.1 General requirements ... 9
8.2 Fracture surface inspection ... 9
9 Test Report ... 9
Appendix A (Informative) Example of Test Report ... 11
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1: Rules for the Structure and Drafting of Standardizing Documents. This Document replaced GB/T 2652-2008 Tensile Test Methods on Weld and Deposited Metal. Compared with GB/T 2652-2008, the major technical changes of this Document are as follows besides the structural adjustments and editorial modifications:
--- Change the requirements of "Scope" (see Clause 1 of this Document, Clause 1 of the 2008 Edition);
--- Add the requirements for continuously increasing the test force (see Clause 5 of this Edition);
--- Add marking requirements (see 6.2 of this Edition);
--- Change the processing requirements of "other metal materials" (see 6.4.3 of this Edition; 5.4.3 of the 2008 Edition);
--- Change the tolerance requirements of the surface quality of the specimen (see 6.7 of this Edition; 5.5.1, 5.7 of the 2008 Edition);
--- Change the requirements for test report (see Clause 9 of this Edition; Clause 8 of the 2008 Edition).
This Document equivalently adopts ISO 5178:2019 Destructive Tests on Welds in Metallic Materials – Longitudinal Tensile Test on Weld Metal in Fusion Welded Joints. Please note some contents of this Document may involve patents. The issuing agency of this Document shall not assume the responsibility to identify these patents. This Document was proposed by China Machinery Industry Federation.
This Document shall be under the jurisdiction of National Technical Committee on Welding of Standardization Administration of China (SAC/TC 55).
Drafting organizations of this Document: Shanghai Research Institute of Materials; Harbin Welding Institute Co., Ltd.; Baoji Petroleum Steel Pipe Co., Ltd.; Xiamen Chengcan Industrial Equipment Co., Ltd.; Shenzhen Jinbofang Laser Technology Co., Ltd.; Shanghai Institute of Special Equipment Inspection and Technical Research; Jiangsu Province Special Equipment Safety Supervision and Inspection Institute; China Machine Intelligent Equipment Innovation Research Institute (Ningbo) Co., Ltd.; Taiyuan Heavy Industry Co., Ltd.; and Guangdong Foreweld Co., Ltd.
Chief drafting staffs of this Document: Zhai Lianna, Chen Mo, Wang Bin, Bi Zongyue, Wang Destructive Tests on Welds in Metallic Materials –
Longitudinal Tensile Test on Weld Metal in Fusion Welded
Joints
1 Scope
This Document specifies the specimen dimensions and test procedure for the longitudinal tensile test of circular cross-section specimens of fusion welded joint weld metal to determine its mechanical properties.
This Document is applicable to all kinds of metal material products manufactured by fusion welding methods and whose joint dimensions can be made into circular cross-section specimens according to ISO 6892-1.
2 Normative References
The provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document.
ISO 6892-1 Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature
NOTE: GB/T 228.1-2021 Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature (ISO 6892-1:2019, MOD)
3 Terms and Definitions
For the purposes of this Document, there are no terms and definitions apply. 4 Symbols and Abbreviations
The symbols and abbreviations used in the longitudinal tensile test shall be in accordance with the provisions of ISO 6892-1.
machine.
6.7 Surface quality
The specimen tolerance shall comply with the provisions of ISO 6892-1.
Specimens shall be free from strain hardening or overheating.
7 Test Procedure
The test force shall be applied to the specimen in a continuous and gradual manner according to the provisions of ISO 6892-1.
8 Test Results
8.1 General requirements
The test results shall be determined in accordance with the provisions of ISO 6892-1. 8.2 Fracture surface inspection
After the specimen breaks, the surface of the fracture shall be inspected; and any flaws on the fracture that may adversely affect the test shall be recorded in the report, including the type, size and quantity of the flaws. If white spots appear, they shall be recorded and only the central area of the white spots shall be considered as a flaw.
9 Test Report
In addition to the content required by ISO 6892-1, the test report shall also include the following content:
a) The reference number of this Document, such as GB/T 2652-2022;
b) The location of the specimen, if necessary, attach a schematic diagram (see Figures 1 and 2);
c) The test temperature when the test is not carried out at room temperature; d) Type, size and number of the observed flaws;
e) Sample diameter, d0.
Appendix A gives an example of a typical test report. If necessary, the specified plastic elongation strength Rp and its corresponding test force Fp in Table A.1 can be replaced by the

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