ISO INTERNATIONAL STANDARD 683-3 Fourth edition 2022-01 Heat-treatable steels, alloy steels and free-cutting steels - Part 3: Case-hardening steels Aciers pour traitement thermique, aciers allies et aciers pour décolletage - Partie 3: Aciers pour cémentation Reference number ISO 683-3:2022(E) ISO @IS02022 IS0 683-3:2022(E) COPYRIGHT PROTECTED DOCUMENT @ISO2022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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, withoutpriorwrittenpermission.Permission can berequestedfrom eitherIso at theaddress below orIso'smemberbodyinthecountryoftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved