GB/T 2656-1981 Fatigue test methods for weld metal and welded joints
Basic Information
Standard ID:
GB/T 2656-1981
Standard Name: Fatigue test methods for weld metal and welded joints
Chinese Name:
焊缝金属和焊接接头的疲劳试验法
Standard category:National Standard (GB)
state:Abolished
Date of Release1981-05-19
Date of Implementation:1982-01-01
Date of Expiration:2005-10-14
standard classification number
Standard ICS number:Mechanical manufacturing>>Welding, brazing and low-temperature welding>>25.160.40 Welded joints
Standard Classification Number:Machinery>>Processing Technology>>J33 Welding and Cutting
associated standards
Publication information
other information
Review date:2004-10-14
Drafting unit:Harbin Welding Institute
Focal point unit:National Welding Standardization Technical Committee
Publishing department:National Standardization Administration
competent authority:National Standardization Administration
Introduction to standards:
GB/T 2656-1981 Fatigue test methods for weld metal and welded joints GB/T2656-1981 standard download decompression password: www.bzxz.net
Some standard content:
National Standard of the People's Republic of China
Fatigue Test Method for Weld Metal and Welded Joint GB2656-81
1When fatigue test is carried out on weld metal and welded joint, the endurance strength (α-1) and stress-revolution curve under symmetrical alternating load shall be measured.
2The size and shape of the test specimen are shown in Figure 1 or Figure 2. The specimen in Figure 1 is tested on a "Nu" type testing machine, and the specimen in Figure 2 is tested on a "Moore" type testing machine. 8
The First Ministry of Machinery Industry of the People's Republic of China issued
10~0 F29·2
No sharp edges allowed
Implemented on January 1, 1982
Harbin Welding Research Institute of the Ministry of Machinery Industry
Boiler Industry
Harbin
GB2656—81
3The sampling position of weld metal fatigue test specimens can refer to the provisions of GB2649-81 "Method for Sampling of Mechanical Properties of Welded Joints". The sampling position of weld joint fatigue test is stipulated in the corresponding technical conditions. The weld is located in the middle of the specimen, and the reinforcement part must be cut off.
4 The number of specimens for fatigue test shall not be less than 6. 5The measurement of the specimen, the requirements for the testing machine, and the calculation of the test results shall be in accordance with the provisions of YB40--64 "Metal Bending Fatigue Test Method". bZxz.net
6 The test report should include the specimen type, size, sampling location, measured endurance strength (0-1 kgf/mm2), stress-revolution curve, fracture location and characteristics, and the presence or absence of pores, cracks, slag inclusions or other defects.
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