GB/T 25774.1-2023 (GB/T25774.1-2023, GBT 25774.1-2023, GBT25774.1-2023)
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Test methods for welding consumables -- Part 1: Preparation of deposited metal test pieces and specimens for mechanical properties in steel, nickel and nickel alloys
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GB/T 25774.1-2023
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Standards related to: GB/T 25774.1-2023
| Standard ID | GB/T 25774.1-2023 (GB/T25774.1-2023) | | Description (Translated English) | Test methods for welding consumables -- Part 1: Preparation of deposited metal test pieces and specimens for mechanical properties in steel, nickel and nickel alloys | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J33 | | Classification of International Standard | 25.160.20 | | Word Count Estimation | 11,112 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 25774.1-2010 | | Drafting Organization | China Machinery Industry Group Harbin Welding Research Institute Co., Ltd., Changshu Longteng Welding Materials Technology Co., Ltd., Sichuan Atlantic Welding Materials Co., Ltd., Tianjin Jinqiao Welding Materials Group Co., Ltd., Luoyang Peony Welding Materials Group Co., Ltd., Yichang Monkey King Welding Wire Co., Ltd., Tianjin Daqiao Welding Materials Group Co., Ltd., Shanghai Zhongzhou Special Alloy Materials Co., Ltd., Shandong Juli Welding Materials Co., Ltd., Kunshan Jingqun Welding Materials Technology Co., Ltd., Jiangsu Jiuzhou New Materials Technology Co., Ltd., Wuhan Tiemao welding materials co., ltd. | | Administrative Organization | National Welding Standardization Technical Committee (SAC/TC 55) | | Proposing organization | National Welding Standardization Technical Committee (SAC/TC 55) | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 25774:1-2023: Inspection of welding materials Part 1: Preparation of mechanical properties specimens of steel, nickel and nickel alloy deposited metals
ICS 25:160:20
CCSJ33
National Standards of People's Republic of China
Replace GB/T 25774:1-2010
Examination of welding materials part 1:
Steel, nickel and nickel alloy deposited metals
Preparation of mechanical property specimens
propertiesinsteel,nickelandnickelaloys
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 III
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 General 1
5 Base material for testing 1
6 Specimen preparation 1
7 Welding conditions 2
8 Heat treatment 3
9 Sampling location and specimen size 3
Preface
This 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 1 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 25774:1-2010 "Inspection of Welding Materials Part 1: Mechanical Properties of Steel, Nickel and Nickel Alloy Deposited Metals"
"Preparation and Inspection of Specimens", compared with GB/T 25774:1-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) Deleted test piece types 1:8, 1:9, 2:0, 2:1, 2:2, 2:3, 2:4, 2:5, 2:6, 2:7, 2:8, 2:9 (see Chapter 5 of the:2010 edition);
b) Changed the test plate width of types 1:3 and 1:4 (see 6:1, Chapter 5 of the:2010 edition);
c) The allowable deviations of test plate thickness and root clearance are increased (see 6:1);
d) Changed the symbol of the diameter of the tensile specimen and the dimensional tolerance (see 9:2, Chapter 8 of the:2010 edition);
e) The shape tolerance of the diameter of the tensile specimen is increased (see 9:2);
f) The symbol for the size of the V-notch impact specimen has been changed (see 9:3, Chapter 8 of the:2010 edition);
g) Added a technical requirement for machining allowable deviations for automatic positioning of impact specimens (see 9:3);
h) Reinspection and test reports have been deleted (see Chapters 9 and 10 of the:2010 edition):
This document is modified to adopt ISO 15792-1:2020 "Test methods for welding materials - Part 1: Testing of deposited metal on steel, nickel and nickel alloys"
Preparation of parts and specimens":
The technical differences between this document and ISO 15792-1:2020 and their reasons are as follows:
---Added the technical requirements for the thickness of the isolation layer after processing (see Chapter 5) to adapt to my country's technical requirements;
---Added technical requirements for scrapping angular deformation specimens (see 6:2) to apply to my country's technical requirements;
---Replaced ISO 13916 with normatively quoted GB/T 18591, and added processing requirements if the inter-pass temperature does not meet the specified temperature:
Sum the recommended temperature measurement points (see 7:2) to meet my country’s technical requirements;
---Added the requirement that the performance of the sample should not be affected during sampling and cutting (see 9:1) to comply with my country's technical requirements;
---Changed the 1:0 and 1:1 types of test pieces to use circular cross-section test specimens with d0 of 6mm (see 9:2) to adapt to our country's technology
Require;
---Replaced ISO 5178 (see 9:2) with normatively cited GB/T 2652, and added tensile test specimen drawings and dimensions (see Figure 4 and
Table 2), to facilitate the execution of this document;
---Replaced ISO 9016:2012 (see 9:3) with the normatively cited GB/T 2650-2022: The consistency process between the two documents
The degree has been modified, and the V-notch impact specimen diagram and dimensions (see Figure 5 and Table 3) have been added to facilitate the execution of this document:
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 1: Deposited Metal Strength of Steel, Nickel and Nickel Alloys"
Preparation of chemical performance samples";
---Deleted the "References" chapter:
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 Corporation, Changshu Longteng Welding Materials Technology Co:, Ltd:,
Sichuan Atlantic Welding Materials Co:, Ltd:, Tianjin Jinqiao Welding Materials Group Co:, Ltd:, Luoyang Mudan Welding Materials Group Co:, Ltd:,
Yichang Monkey King Welding Wire Co:, Ltd:, Tianjin Daqiao Welding Materials Group Co:, Ltd:, Shanghai Zhongzhou Special Alloy Materials Co:, Ltd:, Shandong Juli
Welding Materials Co:, Ltd:, Kunshan Jingqun Welding Materials Technology Co:, Ltd:, Jiangsu Jiuzhou New Materials Technology Co:, Ltd:, Wuhan Tie Anchor Welding Materials Stock
CO:, LTD:
The main drafters of this document: Yang Zijia, Ji Bingyuan, Zhang Xiaobai, Xiao Huiying, Yang Zhengke, Guo Xiao, Dai Dunle, Yang Tianwen, Feng Mingming, Meng Bo,
Tong Tianwang, Gao Yuxiang, He Tao:
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 multi-pass welding is used for welding materials, classification and testing can be carried out in accordance with the provisions of this document: Due to the welding material diameter, weld bead width, welding
Depending on parameters such as welding position and material composition, the mechanical properties of deposited metal samples used for welding material classification may differ from those of the welded joints:
The mechanical properties are different:
Examination of welding materials part 1:
Steel, nickel and nickel alloy deposited metals
Preparation of mechanical property specimens
1 Scope
This document specifies the preparation of deposited metal tensile and impact specimens for steel, nickel and nickel alloy welding materials:
This document is applicable to arc welding material classification tests of steel, nickel and nickel alloys or other tests to determine the mechanical properties of deposited metals:
Sample preparation:
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 2650-2022 Destructive testing of metal material welds and impact testing (ISO 9016:2022, MOD)
GB/T 2652 Destructive testing of welds of metallic materials Longitudinal tensile test of weld metal of molten welding joints (GB/T 2652-
2022,ISO 5178:2019,IDT)
GB/T 18591 Guidelines for measurement of welding preheating temperature, interpass temperature and preheating maintenance temperature (GB/T 18591-2001,
ISO 13916:1996,IDT)
3 Terms and definitions
There are no terms or definitions to be defined in this document:
4 General rules
The welding consumables tested should be representative products that the manufacturer needs to classify or inspect: Weld deposits shall be prepared in accordance with the requirements of this document
Tensile and impact specimens of metals:
5 Base material for testing
The base metal used for testing shall match the deposited metal of the test welding material: If other base materials are used, the tested welding materials should be used on the slope
Weld at least two isolation layers on the mouth surface and backing plate surface: The thickness of the isolation layer after processing should not be less than 3mm to ensure that the deposited metal is not diluted by the base metal:
release impact:
6 Specimen preparation
6:1 The test piece should be prepared in the form of a V-shaped groove with a backing plate, and the backing plate is fixed and welded to the back of the test piece, see Figure 1 and Table 1:
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