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GB/T 25774.3-2023: Test methods for welding consumables - Part 3: Preparation and testing of a fillet weld specimens for T-joint
Status: Valid GB/T 25774.3: Evolution and historical versions
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| GB/T 25774.3-2023 | English | 229 |
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Test methods for welding consumables - Part 3: Preparation and testing of a fillet weld specimens for T-joint
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GB/T 25774.3-2023
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| GB/T 25774.3-2010 | English | 359 |
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Test methods for welding consumables -- Part 3: Preparation and testing of a fillet weld specimens for T-joint
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GB/T 25774.3-2010
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Basic data | Standard ID | GB/T 25774.3-2023 (GB/T25774.3-2023) | | Description (Translated English) | Test methods for welding consumables - Part 3: Preparation and testing of a fillet weld specimens for T-joint | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J33 | | Classification of International Standard | 25.160.20 | | Word Count Estimation | 11,113 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 25774.3-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25774.3-2023: Test methods for welding consumables - Part 3: Preparation and testing of a fillet weld specimens for T-joint
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ICS 25:160:20
CCSJ33
National Standards of People's Republic of China
Replace GB/T 25774:3-2010
Examination of welding materials part 3:
Preparation and inspection of T-joint fillet weld specimens
(ISO 15792-3:2011,Weldingconsumables-Testmethods-
Published on 2023-11-27 and implemented on 2024-06-01
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General 2
5 Base material for testing 2
6 Specimen preparation 2
7 Test piece inspection 3
8 Test report 5
Foreword
The document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document is Part 3 of GB/T 25774 "Inspection of Welding Materials": GB/T 25774 has released the following parts:
---Part 1: Preparation of mechanical properties specimens of steel, nickel and nickel alloy deposited metals;
---Part 2: Preparation of mechanical properties specimens for single-sided single-pass welding and double-sided single-pass welded joints of steel;
---Part 3: Preparation and inspection of T-joint fillet weld specimens:
This document replaces GB/T 25774:3-2010 "Inspection of Welding Materials Part 3: Preparation and Inspection of T-Joint Fillet Weld Samples"
"Experience", compared with GB/T 25774:3-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
---Added the measurement of weld concavity (see 7:2):
This document is modified to adopt ISO 15792-3:2011 "Test methods for welding materials Part 3: Multi-position adaptation of welding materials fillet welds
Ability and Root Penetration Classification Test":
Compared with ISO 15792-3:2011, this document has made the following structural adjustments:
---Added a "Terms and Definitions" chapter:
The technical differences between this document and ISO 15792-3:2011 and their reasons are as follows:
---Changed the scope (see Chapter 1) to adapt to my country's technical requirements;
---Added normative reference to GB/T 3375 (see Chapter 3) to adapt to my country's technical requirements and increase operability;
---Replaced ISO 6947 (see 6:2) with the normatively quoted GB/T 16672 to adapt to my country's technical requirements and increase operability;
---Added visual inspection and inspection requirements (see 7:1) to apply to my country's technical requirements;
---Added the requirement to inspect the fracture surface after the specimen is broken (see 7:3) to comply with my country's technical requirements;
---The content of the test report (see Chapter 8) has been changed to adapt to my country's technical requirements:
The following editorial changes have been made to this document:
---In order to coordinate with the existing standards, the name of the standard is changed to "Inspection of Welding Materials Part 3: Preparation of T-joint fillet weld specimens"
Preparation and Inspection":
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and coordinated by the National Welding Standardization Technical Committee (SAC/TC55):
This document was drafted by: Harbin Welding Research Institute Co:, Ltd: of China Machinery Industry Group Co:, Ltd:, Tianjin Daqiao Welding Materials Group Co:, Ltd:, Kunming
Shanjing Qun Welding Materials Technology Co:, Ltd:, Juli New Materials Technology (Rizhao) Co:, Ltd:, Sichuan Atlantic Welding Materials Co:, Ltd:, Tianjin
City Jinqiao Welding Materials Group Co:, Ltd:, Yichang Monkey King Welding Wire Co:, Ltd:
The main drafters of this document: Yang Zijia, Han Haijian, Tong Tianwang, Qiao Jichun, Jiang Yong, Xiao Huiying, Yin Man, Shi Baicheng:
This document was first published in:2010 and this is the first revision:
Introduction
The mechanical properties, multi-position adaptability and root penetration of T-joint fillet welds are important indicators for the classification or inspection of welding materials:
The specimen preparation process has a great impact on its final results:
GB/T 25774 "Inspection of Welding Materials" standardizes the mechanical properties and preparation of T-joint fillet weld specimens, welding materials
Product standards all quote this series of documents, and the unified requirements for sample preparation are conducive to the implementation of product standards: GB/T 25774 is welding materials
The universal sample preparation method standard consists of the following three parts:
---Part 1: Preparation of mechanical properties specimens of steel, nickel and nickel alloy deposited metals: The purpose is to provide for the preparation of steel, nickel
The test piece base material, preparation requirements, welding conditions and sample requirements required for arc welding welding materials deposited metal mechanical properties test specimens:
---Part 2: Preparation of mechanical properties specimens of single-sided single-pass welded and double-sided single-pass welded joints of steel: The purpose is to provide for the application
The specimen master required for preparing mechanical properties specimens of single-sided single-pass welding and double-sided single-pass welding joints of steel arc welding materials:
Materials, preparation requirements, welding conditions and sample requirements:
---Part 3: Preparation and inspection of T-joint fillet weld specimens: The purpose is to provide for the preparation of steel and nickel welding materials
The test piece base material, preparation requirements and inspection requirements required for T-joint fillet weld specimens:
When fillet welding is used as the welding material, testing and classification can be carried out in accordance with the provisions of this document: The provisions of this document are applicable to the evaluation of welding materials
Methods for specimen preparation and test result evaluation for fillet weld tests based on welding position and root penetration requirements: The test described in this document
The test conditions and specified test results should not be used as requirements for process qualification:
Examination of welding materials part 3:
Preparation and inspection of T-joint fillet weld specimens
1 Scope
This document specifies the base metal, test piece preparation, test piece inspection and test report for T-joint fillet weld testing of welding materials:
This document is applicable to the test and evaluation of T-joint fillet welds of steel, nickel and nickel alloys and other welding materials:
This document does not stipulate acceptance requirements, which shall be in accordance with relevant welding material product standards:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 3375 Welding terminology
GB/T 16672 Weld --- Working position --- Definition of inclination and angle (GB/T 16672-1996, idtISO 6947:1990)
3 Terms and definitions
The terms and definitions defined in GB/T 3375 and the following apply to this document:
3:1
Weld thickness calculation theoreticalthroat
The thickness of the weld used when designing the weld:
Note: For fillet welds, it is equal to the length of the perpendicular line from the vertex of the right angle to the hypotenuse in the largest right-angled isosceles triangle drawn within the cross-section of the fillet weld: It is also customary to
It is called throat thickness:
[Source: GB/T 3375-1994, 2:65, with modifications]
3:2
Weld convexity
In the cross-section of a convex fillet weld, the maximum distance between the weld toe line and the weld surface:
[Source: GB/T 3375-1994,2:66]
3:3
Weld concavity
In the cross-section of a concave fillet weld, the maximum distance between the weld toe line and the weld surface:
[Source: GB/T 3375-1994,2:67]
3:4
weld toeweldtoe
The interface between the weld surface and the base metal:
[Source: GB/T 3375-1994,2:68]
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