GB/T 19799.3-2025 English PDF

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GB/T 19799.3-2025: Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 19799.3-2025	519	Add to Cart	5 days	Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface	Valid

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GB/T 19799.1   GB/T 19873.1   GB/T 19943   GB/T 33523.600   GB/T 30565   GB/T 19799.2   

Basic data

Standard ID: GB/T 19799.3-2025 (GB/T19799.3-2025)
Description (Translated English): Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 26,239
Date of Issue: 2025-01-24
Date of Implementation: 2025-01-24
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 19799.3-2025: Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface

---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 19.100 CCSJ04 National Standard of the People's Republic of China Non-destructive testing ultrasonic test blocks Part 3.Standard test blocks for curved surface testing Released on 2025-01-24 2025-01-24 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Production 1 5 Mark 8 6 Declaration of Conformity 8 Appendix A (Informative) Method of using the standard test block for convex surface inspection 9 Appendix B (Informative) Method of using standard test blocks for concave surface testing 14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is part 3 of GB/T 19799 "Non-destructive testing ultrasonic test blocks". GB/T 19799 has published the following part. ---GB/T 19799.1 Non-destructive testing - Ultrasonic testing - Calibration test block No. 1 ---GB/T 19799.2 Non-destructive testing - Ultrasonic test blocks - Part 2.Standard test blocks No. 2. ---GB/T 19799.3 Non-destructive testing - Ultrasonic test blocks - Part 3.Standard test blocks for curved surface testing. This document is proposed and coordinated by the National Technical Committee for Standardization of Nondestructive Testing (SAC/TC56). This document was drafted by. Nanjing Diwell High-end Manufacturing Co., Ltd., Shanghai Materials Research Institute Co., Ltd., Shandong Ruixiang Mould Co., Ltd. Ltd., Changzhou Ultrasonic Electronics Co., Ltd., Wujiang Hongda Flaw Detection Equipment Co., Ltd., Beijing Xinliantie Group Co., Ltd., Ainti Nake Technology (Shanghai) Co., Ltd., Gangyan Nake Testing Technology Co., Ltd., and Aerospace Intelligent Manufacturing (Shanghai) Technology Co., Ltd. The main drafters of this document are. Chen Changhua, Ding Jie, Zhang Li, Jiang Jiansheng, Zhang Wencheng, Ha Yao, Xu Zhengmao, Chen Qingyong, Wei Yulong, Wan Haitao, Xiao Xiao, Zhang Jianwei, Shen Mingkui, Tan Ying, Zhang Rui, Xu Lei, Han Lina, Zhong Dehuang, Shen Yaocheng, Xu Guozhen.

Introduction

Ultrasonic test blocks are divided into standard test blocks, comparison test blocks and test test blocks. GB/T 19799 "Non-destructive testing ultrasonic test blocks" aims to standardize ultrasonic testing standard test blocks. GB/T 19799 is intended to consist of three parts constitute. --- Part 1.Standard test block No. 1.The purpose is to specify the size, material and production requirements of standard test block No. 1. --- Part 2.No. 2 standard test block. The purpose is to specify the size, material, manufacturing requirements of No. 2 standard test block, and the use of test blocks Methods for setting up and verifying ultrasonic testing equipment. --- Part 3.Standard test blocks for curved surface inspection. The purpose is to specify the size, material, production requirements of standard test blocks for curved surface inspection, and A method of verifying curved probe performance and material sound velocity using a test block. This document is part 3 of GB/T 19799.The standard test blocks for curved surface testing are divided into convex curved surface test blocks and concave curved surface test blocks. The surface inspection standard test block not only ensures the accurate positioning of the curved probe on the detected defects, but can also be used to test the performance and calibration of the instrument. Sensitivity, improve the level of curved surface ultrasonic testing, effectively solve the measurement of curved surface detection angle probe incident point, refraction angle, zero point and material sound velocity question. The issuing organization of this document calls attention to the fact that when declaring compliance with this document, Figure 4, Figure 5, Table 1, Table 2, Table 3 and “One The use of related patents for "a heel test block", "a heel test block", "a cup-shaped test block" and "a bellyband test block". The issuing organization of this document takes no position on the authenticity, validity and scope of this patent. The patent holder has promised to the issuing agency of this document that it is willing to cooperate with any applicant under reasonable and non-discriminatory terms and conditions, free of charge. The patent holder's statement has been issued by the issuing agency of this document. Related information can be obtained through the following contact information. Name of patent holder. Nanjing Diwell High-end Manufacturing Co., Ltd. Company address. No. 8, Dixi Road, Zhongshan Science and Technology Park, Yanjiang Industrial Development Zone, Liuhe District, Nanjing City, Jiangsu Province. Please note that in addition to the above patents, some of the contents of this document may still involve patents. The issuing agency of this document does not assume the responsibility for identifying patents. responsibility. Non-destructive testing ultrasonic test blocks Part 3.Standard test blocks for curved surface testing

1 Scope

This document specifies the size, material, and Manufacturing requirements, describing the use of the probe operating test block. This document is applicable to standard test blocks for curved surface testing, and other types of curved test blocks for metal materials can also be used for reference.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 12604.1 Nondestructive testing terminology Ultrasonic testing GB/T 20737 General terms and definitions for non-destructive testing GB/T 41114-2021 Non-destructive testing ultrasonic testing phased array ultrasonic testing standard test block specification

3 Terms and definitions

The terms and definitions defined in GB/T 12604.1 and GB/T 20737 apply to this document.

4 Production

4.1 Materials The test block should be made of steel with the same or equivalent steel grade as the test piece. The steel used to make the test block should meet the following requirements. --- The acoustic performance of the test block is similar to that of the test piece; ---The heat treatment process of the test block is the same as that of the test piece. 4.2 Rough machining and heat treatment 4.2.1 Rough machining The standard test blocks for curved surface testing are divided into convex curved surface testing standard test blocks and concave curved surface testing standard test blocks. See Figure 1, and the outline of the concave surface test standard block is shown in Figure 2.Before heat treatment, the rough processing size of the surface test standard block should be kept not less than 15mm machining allowance. Rough machining to near final shape before heat treatment. ......

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