BS EN ISO 17640:2017 Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment

BS EN ISO 17640:2017

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

Status : Superseded, Withdrawn   Published : December 2017 Replaced By : BS EN ISO 17640:2018

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What is this standard about?

This is the international standard for manual ultrasonic testing of fusion-welded joints in metallic materials thicker than or equal to 8mm which exhibit low ultrasonic attenuation. 

The standard’s guidelines detail specific testing techniques for metals that show weakened ultrasonic levels at temperatures of up to 60⁰C. It’s primarily designed for full penetration weld joints where both the welded and parent material are ferritic. It specifies ultrasonic values based on steels with an ultrasonic sound velocity of (5 920±50) m/s for longitudinal waves and (3 255±30) m/s for transverse waves.

Who is this standard for?

It will be used in the following industries:

  • Oil and gas
  • Power
  • Aerospace
  • Engineering and fabrication
  • Automotive
  • Rail
  • Shipbuilding
  • Defence
  • Off highway
  • Equipment, consumables and materials
  • Quality assurance

Why should you use this standard?

Because it 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.

The requirements of testing level D, which is intended for special applications, are in accordance with general requirements, although test 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 0⁰C to 60⁰C range.

This document can be used for the assessment of discontinuities, for acceptance purposes, by either of the following techniques: 

a) Evaluation based primarily on length and echo amplitude of the discontinuity

b) Evaluation based on characterization and sizing of the discontinuity by probe movement techniques

What’s changed since the last update?

The standard has undergone a systematic review. This edition makes corrections to the 2010 version and ensures the standard is state of the art in relation to the ultrasonic testing of welds. It also aligns with other referenced and necessary standards. 




Standard NumberBS EN ISO 17640:2017
TitleNon-destructive testing of welds. Ultrasonic testing. Techniques, testing levels, and assessment
StatusSuperseded, Withdrawn
Publication Date06 December 2017
Withdrawn Date23 January 2019
Normative References(Required to achieve compliance to this standard)EN 12668, ISO 16810:2012, ISO 11666:2010, ISO 16811:2012, ISO 16826:2012, ISO 5577:2017, ISO 9712:2012, ISO 23279:2017, ISO 17635:2016
Informative References(Provided for Information)ISO 5817:2014
Replaced ByBS EN ISO 17640:2018
ReplacesBS EN ISO 17640:2010
International RelationshipsEN ISO 17640:2017,ISO 17640:2017
Draft Superseded By16/30335996 DC
DescriptorsExamination (quality assurance), Flaws, Grades (quality), Surface texture, Butt joints, T-joints, Sensitivity, Probes, Scanners, Welded joints, Reflectance factor, Non-destructive testing, Fusion welding, Defects, Welding, Size measurement, Ultrasonic testing, Testing conditions, Corner joints, Acceptance inspection, Attenuation, Metals
ICS25.160.40
Title in FrenchEssais non destructifs des assemblages soudés. Contrôle par ultrasons. Techniques, niveaux d'essai et évaluation
Title in GermanZerstörungsfreie Prüfung von Schweißverbindungen. Ultraschallprüfung. Techniken, Prüfklassen und Bewertung
CommitteeWEE/46
ISBN978 0 580 93002 7
PublisherBSI
FormatA4
DeliveryYes
Pages38
File Size1.446 MB
Price£218.00


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