ISO 17640-2018

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Non-destructive testing of welds —

Ultrasonic testing — Techniques,

testing levels, and assessment

Essais non destructifs des assemblages soudés — Contrôle par

ultrasons — Techniques, niveaux d'essai et évaluation

INTERNATIONAL

STANDARD

ISO

17640

Fourth edition

2018-10

Reference number

ISO 17640:2018(E)

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















Website: www.iso.org



ISO 17640:2018(E)

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Termsanddefinitions ..................................................................................................................................................................................... 2

4 Symbols .......................................................................................................................................................................................................................... 2

5 General ............................................................................................................................................................................................................................ 3

6 Information required prior to testing ............................................................................................................................................ 3

  .......................................................................................................................................................................... 3

  ................................................................................................................ 4

6.3 Written test procedure ..................................................................................................................................................................... 4

7 Requirements for personnel and equipment ......................................................................................................................... 4

  ................................................................................................................................................................. 4

  ....................................................................................................................................................................................... 4

  ................................................................................................................................................................................. 5

  .................................................................................................................................................................... 5

7.3.2 Angles of incidence ........................................................................................................................................................ 5

  ................................................................................................................................................................. 5

  ............................................................................ 5

  ................................................................................................................................................................. 6

8 Testing volume ........................................................................................................................................................................................................ 6

9 Preparation of scanning surfaces ....................................................................................................................................................... 6

10 Parent metal testing .......................................................................................................................................................................................... 6

11 Range and sensitivity setting ................................................................................................................................................................... 7

  ........................................................................................................................................................................................................... 7

  .............................................................................................................................................. 8

  .................................................................................................................................................................................... 

  ............................................................................................................................................................................. 

  ........................................................................................................................................................................... 

12 Testing levels ............................................................................................................................................................................................................ 9

13 Testing techniques ........................................................................................................................................................................................... 10

  ........................................................................................................................................................................................................ 10

  ............................................................................................................................................................................... 10

  ................................................................ 10

  ........................................................................................................................................................ 10

  ............................................................................................................................................................. 10

 ................................................................................................................................................................................... 10

  .................................................................................................................................... 10

 ................................................................................................................................................... 10

  ................................................................................................................................................... 10

  ............................................................................................................... 10

14 Test report ................................................................................................................................................................................................................ 11

Annex A  Testing levels for various types of welded joints ........................................................................13

Bibliography .............................................................................................................................................................................................................................30

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标签： #ISO

摘要：

ISO 17640-2018 是一项国际标准，规定了采用超声波技术对焊接接头进行非破坏性检测的方法和要求，适用于厚度范围在8毫米至100毫米之间的铁素体钢焊缝。该标准详细描述了检测等级、探头选择、校准程序及缺陷评定规则，旨在确保检测结果的一致性和可靠性。作为2018年发布的第二版，它替代了旧版ISO 17640:2010，并针对现代工业检测实践进行了技术更新。无论是用于压力容器、管道、钢结构还是其他焊接构件，ISO 17640-2018都是工程师和检测人员确保焊缝质量、避免结构失效的关键参考文件

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ISO 17640-2018

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