Guidelines for specifying Charpy V-notch impact prescriptions in steel specifications

ISO/TS 7705:2017 gives guidelines for specifying Charpy V-notch impact prescriptions in steel specifications.

Lignes directrices pour la spécification des prescriptions d'énergie de rupture sur éprouvette Charpy à entaille en V dans les normes d'acier

General Information

Status
Published
Publication Date
18-Jul-2017
Current Stage
9020 - International Standard under periodical review
Start Date
15-Jan-2024
Completion Date
15-Jan-2024
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ISO/TS 7705:2017 - Guidelines for specifying Charpy V-notch impact prescriptions in steel specifications
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TECHNICAL ISO/TS
SPECIFICATION 7705
First edition
2017-07
Guidelines for specifying Charpy
V-notch impact prescriptions in steel
specifications
Lignes directrices pour la spécification des prescriptions d’énergie de
rupture sur éprouvette Charpy à entaille en V dans les normes d’acier
Reference number
ISO/TS 7705:2017(E)
©
ISO 2017

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ISO/TS 7705:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

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ISO/TS 7705:2017(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General features of Charpy V-notch impact test . 1
4.1 Toughness testing methods in design codes and in steel specifications . 1
4.2 Historical background to the Charpy V-notch impact test . 1
4.3 The Charpy V-notch impact test in relation to other tests . 2
4.4 Factors influencing impact properties . 2
4.5 The Charpy V-notch impact test as a powerful tool for delivery control in
steel specifications . 3
5 Information to be gained from the impact test . 3
6 Subsize test pieces . 6
7 Recommendations for specifying impact strength requirements in steel specifications .7
7.1 Selection and preparation of samples and test pieces . 7
7.1.1 Selection and preparation of samples . 7
7.1.2 Cutting and machining . 7
7.2 Number of test pieces to be taken per sample and specific requirements . 7
7.3 Location of test pieces . 7
7.4 Interpretation of test results . 8
Bibliography . 9
© ISO 2017 – All rights reserved iii

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ISO/TS 7705:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide f
...

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