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GB/T 45380-2025 English PDF

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US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 45380-2025: Non-destructive testing - Nonlinear ultrasonic testing method of microstructure damage
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45380-2025	359	Add to Cart	4 days	Non-destructive testing - Nonlinear ultrasonic testing method of microstructure damage	Valid

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Basic data

Standard ID: GB/T 45380-2025 (GB/T45380-2025)
Description (Translated English): Non-destructive testing - Nonlinear ultrasonic testing method of microstructure damage
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 18,120
Date of Issue: 2025-03-28
Date of Implementation: 3/28/2025
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45380-2025: Non-destructive testing - Nonlinear ultrasonic testing method of microstructure damage

---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 Nondestructive testing of tissue structure damage Nonlinear ultrasound Detection Methods State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Methodology Overview 2 5 Detection system 3 6 Testing procedures 6 7 Test Records and Reports 9

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. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Nondestructive Testing (SAC/TC56). This document was drafted by. East China University of Science and Technology, Shanghai Institute of Materials Co., Ltd., Chongqing University, Shanghai Special Equipment Supervision and Inspection Technology Co., Ltd. Technical Research Institute, Dongfang Boiler Co., Ltd. of Dongfang Electric Corporation, Jiangsu Special Equipment Safety Supervision and Inspection Institute, Guoneng Boiler Pressure Container Inspection Co., Ltd., Wuhan Zhongke Innovation Technology Co., Ltd., China Special Equipment Testing and Research Institute, Huaneng International Power Co., Ltd. Shanghai Shidongkou Second Power Plant of China Power Co., Ltd. The main drafters of this document are. Xuan Fuzhen, Xiang Yanxun, Jiang Jiansheng, Liu Lishuai, Ding Jie, Deng Mingxi, Xiao Biao, Zheng Yang, Tan Yunhua, Ding Xiaoping, Hao Xiaojun, Lin Guanghui, Chen Xiaoming, Zhao Yanyan, Li Xuan, and Xie Jing. Nondestructive testing of tissue structure damage Nonlinear ultrasound Detection Methods

1 Scope

This document describes a general method for nonlinear ultrasonic longitudinal second harmonic detection of structural damage in metallic materials. This document is applicable to the fatigue, plasticity, creep, irradiation and other structural damage of metal materials with a thickness between 10mm and 300mm. Nonlinear ultrasonic testing.

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 27664.2 Non-destructive testing - Performance and inspection of ultrasonic testing equipment - Part 2.Probes GB/T 39432 Non-destructive testing ultrasonic testing step test block

3 Terms and definitions

The terms and definitions defined in GB/T 12604.1 and the following apply to this document. 3.1 Ultrasonic waves with a finite amplitude propagating in a medium generate ultrasonic waves with a frequency different from the excitation frequency. Note. The nonlinear ultrasonic wave specified in this document mainly refers to the second harmonic of ultrasonic longitudinal wave. 3.2 Ultrasonic waves have a limited and large amplitude when propagating in a medium. 3.3 fundamental wave Ultrasonic waves whose center frequency is the excitation frequency. 3.4 Second harmonic wave Ultrasonic waves with a center frequency of twice the excitation frequency. 3.5 Microstructure damage When metal materials are subjected to external stress, strain, heat, chemical environment, etc., their microscopic structure undergoes irreversible changes or local changes. The phenomenon of destruction. Note. Structural damage includes dislocation slip and proliferation, precipitation phase evolution, local phase transformation, grain boundary coarsening, micropores, microcracks, etc. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 45380-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 45380-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 45380-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 45380-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.