ISO INTERNATIONAL STANDARD 16220 Third edition 2017-04 Magnesium and magnesium alloys Magnesium alloy ingots and castings Magnésium et alliages de magnésium - Lingots et pieces moulées en alliage de magnesium Reference number ISO 16220:2017(E) International Organization for Standardization @ IS0 2017 ee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 mitted without license from IHS IS0 16220:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 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. ISOcopyrightoffice Ch. de Blandonnet 8 · CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internationai ibrg DrganizationforStandardization Licensee-ZHEJIANG INST OF STANDARDIZzRoISQ7 - All rights reserved Not for Resale, 2017/6/28 00:55:42 networking permited withoutlicense from IHS IS0 16220:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Material designation 4.1 General. .1 4.2 Temper designation .1 4.3 Casting process designation. .2 4.4 Designation for ordering .2 5 Requirements .2 5.1 Chemical composition 2 5.2 Mechanical properties of castings 2 5.3 Frequency of testing. 3 5.4 General condition of the product 3 6 Sampling .3 7 Test pieces for mechanical properties .3 7.1 Design 3 7.2 Test pieces obtained from separately cast samples .3 7.2.1 Sand-cast samples 3 7.2.2 Permanent-mould cast samples. .3 7.2.3 Pressure-die cast samples .3 7.2.4 Investment cast samples. 4 7.3 Test pieces cut from castings .4 8 Test methods. ..4 8.1 Tensile test .4 8.2 Brinell hardness test ..4 9 Retests. ..4 10 Rounding of numbers .4 Annex A (informative) List of IsO and equivalent international alloy designations .14 Annex B (informative) Additional information regarding the manganese and iron content .16 Annex C (informative) Additional information regarding maximum content of alloying elements and impurities in ingots and castings 17 Bibliography .18 ii icenSee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 withoutlicense from IHS