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GB/T 5482-2023 English PDF

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GB/T 5482-2023: Metallic materials - Dynamic tear test method
Status: Valid

GB/T 5482: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 5482-2023	English	349	Add to Cart	4 days [Need to translate]	Metallic materials - Dynamic tear test method	Valid	GB/T 5482-2023
GB/T 5482-2007	English	519	Add to Cart	3 days [Need to translate]	Test method of metallic materials -- Dynamic tear	Obsolete	GB/T 5482-2007
GB/T 5482-1993	English	439	Add to Cart	4 days [Need to translate]	Test method for dynamic tear energy of metallic materials	Obsolete	GB/T 5482-1993

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Basic data

Standard ID	GB/T 5482-2023 (GB/T5482-2023)
Description (Translated English)	Metallic materials - Dynamic tear test method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H22
Classification of International Standard	77.040.10
Word Count Estimation	18,150
Date of Issue	2023-08-06
Date of Implementation	2024-03-01
Older Standard (superseded by this standard)	GB/T 5482-2007
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 5482-2023: Metallic materials - Dynamic tear test method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77.040.10 CCSH22 National Standards of People's Republic of China Replace GB/T 5482-2007 Dynamic tear test method for metallic materials Published on 2023-08-06 2024-03-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

PrefaceⅠ 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 1 4 Samples and their preparation 1 5 Testing machine 4 6 Test procedure 5 7 Calculation of shear section ratio 6 8 Test result processing 7 9 test report 7 Appendix A (Normative) Sampling Method for Welded Joint Samples 8 Appendix B (informative) Dynamic tear specimens with a thickness greater than or equal to 25mm and their requirements for testing machines 10 Appendix C (informative) Pressing of the notched top of the specimen 12 Appendix D (informative) Measurement of specimen notch pressing depth 13 Reference 14

Foreword

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 replaces GB/T 5482-2007 "Dynamic Tear Test Method for Metallic Materials". Compared with GB/T 5482-2007, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. a) Change the term "fiber section ratio" to "shear section ratio" (see 3.4,.2007 version of 3.4); b) Added processing accuracy requirements for specimens using end positioning tests (see 4.2.1); c) The regulations on the reading resolution of testing machines have been changed, and the reading resolution of testing machines with a maximum impact energy value of 3000J and above has been added. Regulations (see Table 3, Table 2 of the.2007 edition); d) The test process has been changed and improved (see 6.1, 6.2, 6.1, 6.3 of the.2007 edition); e) Delete the requirements for temperature measurement instruments (see 6.2 of the.2007 edition); f) The requirement for the number of specimens is deleted (see 6.6 of the.2007 edition); g) Added a computer-aided method for measuring shear section ratio (see 7.1.2). 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 Ocean Ship Standardization Technical Committee (SAC/TC12). This document was drafted by. China Shipbuilding Industry Corporation No. 725 Research Institute, Jiangnan Shipbuilding (Group) Co., Ltd., Wuchang Shipbuilding Ship Heavy Industry Group Co., Ltd. and Qingdao Shuangrui Marine Environment Engineering Co., Ltd. The main drafters of this document. Ye Hongde, Zhang Xianfeng, Chen Qinglei, Wang Dahao, He Guangfu, Xu Kuilong, Zhang Xinyao, and Wang Tingyong. This document was first published in 1985, revised for the first time in.1993, revised for the second time in.2007, and this is the third revision. Dynamic tear test method for metallic materials

1 Scope

This document specifies the specimens for dynamic tear testing of metallic materials and their preparation, testing machines, testing procedures, calculation of shear section ratio, and testing Results processing and test reporting. This document is suitable for measuring the dynamic tearing energy and shear fracture of metallic materials or welded joint samples with a Rockwell hardness value less than 36HRC. face rate.

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 2975 Sampling location and sample preparation for mechanical property testing of steel and steel products GB/T 3808 Inspection of Pendulum Impact Testing Machine JJG145 Pendulum Impact Testing Machine Calibration Regulations

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 dynamicteartest dynamicteartest On the impact testing machine, the dynamic tearing specimen in the state of a simply supported beam is punched once, and its energy absorption and shear section ratio are measured. test. 3.2 dynamictearenergy dynamictearenergy The energy absorbed by the sample during the dynamic tear test is used to characterize the ability of a metal material of a specific thickness to resist dynamic tearing. 3.3 The fracture surface of the dynamic tear specimen after punching. Note. Macroscopically, the fracture surface of the sample generally has a crystalline, fibrous (including shear lip) or mixed morphology. 3.4 The percentage of the ratio of the fibrous fracture area to the original cross-sectional area at the notch of the specimen.

4 Samples and their preparation

4.1 Sampling 4.1.1 The cutting position and direction of the sample blank should comply with the requirements for impact specimens in GB/T 2975 or relevant product technical requirements and specifications.

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