INTERNATIONAL STANDARD
Metallicmaterials-Charpy pendulumimpacttest-
Part 1:Testmethod
Materiaux metalliques - Essai de flexion par choc sur eprouvetteCharpy-Partie 1: Methode d'essai
COPYRIGHTPROTECTEDDOCUMENT
@ ISO 2016 Published in Switzerland
All rights reserved. Unless otherwise specified no part of this publication may be reproduced or utilized otherwise in any formor 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 ofthe requester.
ISO copyright officeCh. de Blandonnet 8 • CP 401 CH-1214 Vernier Geneva SwitzerlandTel. 41 22 749 01 11 Fax 41 22 749 09 47copyright@
Contents
Page
3.1 3.2 Definitions pertaining to energy. Definitions pertaining to test piece. 1 2
Test pieces.6.1 6.2 Notch geometry. General. 3 46.2.1 6.2.2 V-notch. U-notch. 4 49 Tolerance of the test pieces. Preparation of the test pieces.. 46.4 6.5 Marking of the test pieces. 4 4
Test equipment. 4
7.1 7.2 General. Installation and verification 4 57.3 Striker. 5
8 Test procedure. 5
8.1 General. 58.2 Friction measurement. Test temperature. 58.4 8.3 Specimen transfer 6 78.5 8.6 Exceeding machine capacity. Inplete fracture. 7 78.7 Post-fracture inspection.. Test piece jamming 88.8 8
Test report.9.1 Mandatory information 89.2 Optional information.. 8
Foreword
bodies (ISo member bodies). The work of preparing International Standards is normally carried outmittee has been established has the right to be represented on that mittee. InternationalISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of organizations governmental and non-governmental in liaison with ISo also take part in the work.electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance aredifferent types of ISo documents should be noted. This document was drafted in accordance with theeditorial rules of the ISo/IEC Directives Part 2 (see
Attention is drawn to the possibility that some of the elements of this document may be the subject ofany patent rights identified during the development of the document will be in theIntroduction and/or patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details ofon the ISo list of patent declarations received (see
Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.
For an explanation on the meaning ofISO specificterms and expressions related to conformity assessment Technical Barriers to Trade (TBT) see the following URL:
SC 4 Toughness testing - Fracture (F) Pendulum (P) Tear (T). The mittee responsible for this document is ISO/TC 164 Mechonicol testing of metals Submittee
This third edition cancels and replaces the second edition (ISO 148-1:2009) which has been technicallyrevised.
ISO 148 consists of the following parts under the general title Metallic materials Charpy pendulumimpact test:
-Part 1: Test method
--Part 2: Verification of testing machines
penduium impact machines
Metallicmaterials-Charpypendulumimpacttest-
Part 1: Testmethod
1 Scope
This part of ISO 148 specifies the Charpy (V-notch and U-notch) pendulum impact test method forcover instrumented impact testing which is specified in ISO 14556. determining the energy absorbed in an impact test of metallic materials. This part of ISO 148 does not
Annexes B and C are based on ASTM E23 and are used with the permission of ASTM International 100Barr Harbor Drive P.0. Box C700 West Conshohocken PA 19428-2959 USA.
2Normative references
and are indispensable for the application of this document. For dated references only the edition cited applies. For undated references the latest edition of the referenced document (including anyamendments) applies.
ISO 148-2 Metallic materials - Charpy pendulum impact test - Part 2: Verification of testing machines
ISO 286-1 Geometrical product specifications (GPS)-ISO code system for tolerances on linear sizes- Part 1: Basis of tolerances deviations and fits
3 Terms and definitions
For the purposes of this document the following terms and definitions apply.
3.1 Definitions pertaining to energy
initial potentialenergy 3.1.1potential energypotential energy of the pendulum hammer prior to its release for the impact test as determined by Kpdirect verification
absorbed energy 3.1.2
friction energy required to break a test piece with a pendulum impact testing machine after correction for
Note 1 to entry: The letter V or U is used to indicate the notch geometry that is: KV or KU. The number 2 or 8 isused as a subscript to indicate the radius of the striker for example KV2
nominal energy nominal initial potential energy 3.1.3
auoeu ugsa oedu unnpuad au go anoeynueu au Aq pauisse uaua KN
ISO 2016 All rights reserved
