JIS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS Z 2242 : 2023 (JISF) Method for Charpy pendulum impact test of metallic materials ICS77.040.10 Reference number: JISZ2242:2023 (E) PROTECTEDBY COPYRIGHT 24 S Z2242:2023 Date of Establishment: 1952-03-08 Date of Revision: 2023-05-22 Dateof PublicNoticeinOfficialGazette: 2023-05-22 Developed by:The Japan Iron and Steel Federation Investigated by: TheJapanIronandSteelFederation,Standardization Center JISZ2242:2023, First English edition published in 2023-11 Translated and published by: Japanese Standards Association Mita MT Building, 3-13-12, Mita, Minato-ku, Tokyo, 108-0073 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority @JSA2023 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized permission in writing from the publisher. Printed in Japan HN PROTECTEDBY COPYRIGHT Z2242:2023 Contents Page Introduction 1 Scope 2 Normative references 3 Terms and definitions 3.1 Definitions pertaining to energy 3.2 Definitions pertaining to test piece 4 Symbols, units and designations 5 Principles of the test 6 Test pieces 6.1 General 6.2 Notch geometry 6.3 Tolerance of the test pieces 6.4 Preparation of test pieces :. 8 6.5 Marking of the test pieces 8 7 Test equipment 9 7.1 General 7.2 Installation and verification 7.3 Striker 9 8 Test procedure 8.1 General ·10 8.2 Friction measurement ·-10 8.3 Test temperature 11 8.4 Test piece transfer ··12 8.5 Exceeding machine capacity 8.6 Incomplete fracture 8.7 Test piece jamming -13 8.8 Post-fracture inspection ·13 9 Test report : ·13 9.1 Mandatory information : 9.2 Optional informationthat canbeaddeduponagreement ..·14 AnnexA(informative)Self-centringtongs :·15 AnnexB (normative)Lateral expansion AnnexC(normative)Fractureappearance ·22 Annex D (normative) Determination of transition curve, fracture appearance (i) PROTECTEDBYCOPYRIGHT Z 2242 : 2023 transition temperature and energy transition temper- ature Annex E (informative) Measurement uncertainty of an absorbed energy val ue, K..... Annex JA (informative) Comparison table between JIS and corresponding International Standard ...· 38 (ii) PROTECTEDBY COPYRIGHT Z2242:2023 Foreword This Japanese Industrial Standard has been revised by the Minister of Economy, Trade and Industry based on the provision of Article 14, para- graph (1) of the Industrial Standardization Act applied mutatis mutandis pursuant to the provision of Article 16 of the said Act in response to a proposal for revision of Japanese Industrial Standard with a draft being attached, submitted by The Japan Iron and Steel Federation (JISF), an accredited standards development organization. This edition replaces the previous edition (JIS Z 2242 : 2020), which has been technically revised. This JIS document is protected by the Copyright Act. Attention is drawn to the possibility that some parts of this Standard may conflict with patent rights, published patent application or utility model rights. The relevant Minister is not responsible for identifying any of such patent rights, published patent application or utility model rights. (iii) PROTECTEDBYCOPYRIGHT Blank JAPANESEINDUSTRIALSTANDARD JISZ2242:2023 Method for Charpy pendulum impact test of metallic materials Introduction This Japanese Industrial Standard has been prepared based on IS0 148-1:2016, Edition 3, with some modifications of the technical contents. The vertical lines on both sides and dotted underlines indicate changes from the cor responding International Standard.A list of modifications with the explanations is given in Annex JA. 1 Scope This Standard specifies the Charpy (V-notch and U-notch) pendulum impact test method for determining the energy absorbed in an impact test of metallic materials. This Standard does not cover instrumented impact testing, which is specified in JIsB 7755. The International Standard correspondin