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Norm

ISO 17640:2010

Issue date: 2010 12 09

Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment

ISO 17640:2010 specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness greater than or equal to 8 mm which exhib...
Withdrawn: 2017 10 12
Publisher:
International Organization for Standardization
Format:
Digital | 26 Pages
Language:
English
Currently valid:

ISO 17640:2010 specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness greater than or equal to 8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.

Where material-dependent ultrasonic values are specified in ISO 17640:2010, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves.

ISO 17640:2010 specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B, and C is given in Annex A.

ISO 17640:2010 specifies that the requirements of testing level D, which is intended for special applications, be in accordance with general requirements. Testing level D can only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, and tests at object temperatures outside the range 0 °C to 60 °C.

ISO 17640:2010 can be used for the assessment of indications, for acceptance purposes, by either of the following techniques: a) evaluation based primarily on length and echo amplitude of the signal indication; b) evaluation based on characterization and sizing of the indication by probe movement techniques.

The techniques used shall be specified.

ISO 17640:2018
2018 10 18
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment
Norm
ISO 17640:2017
2017 10 12
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment
Norm
ISO 17640:2010
2010 12 09
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment
Norm
ISO 17640:2005
2005 07 18
Non-destructive testing of welds — Ultrasonic testing of welded joints
Norm
Expand
Norm
ISO 17640:2017
Issue date : 2017 10 12
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment