ISO INTERNATIONAL STANDARD 16112 Second edition 2017-02 Compacted (vermicular) graphite cast irons Classification Fontes a graphite vermiculaire (compacté) - Classification Reference number IS0 16112:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 ted without license from IHS IS0 16112:2017(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 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 copyrightoffice 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 Internatinair PrganizationforStandardization ensee-ZHEJIANG INST.OF STANDARDIzARoISQa7 - All rights reserved etworking permitted without license from IHS IS0 16112:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references 3 Terms and definitions 4 Designation ..2 5 Order information .2 6 Manufacture ..2 7 Requirements .3 7.1 General. ..3 7.2 Test pieces machined from separately cast samples .3 7.3 Test pieces machined from side-by-side and cast-on samples .6 7.4 Test pieces machined from samples cut from a casting .8 7.5 Hardnes. 9 7.6 Graphite structure. .9 8 Sampling. .9 8.1 General. 9 8.2 Cast samples 10 8.2.1 Frequency and number of tests .10 8.2.2 Separately cast samples. 10 8.2.3 Side-by-side cast samples 10 8.2.4 Cast-on samples. .10 8.2.5 Test pieces machined from cast samples .11 8.3 Samples cut from a casting .11 8.3.1 General. .11 8.3.2 Other conditions. 11 8.4 Formation of test units and number of tests .11 8.4.1 Examples of test units .11 8.4.2 Number of tests per test unit .11 9 Test methods .12 9.1 Tensile test. .12 9.2 Hardnesstest ..13 10 Retests .14 10.1 Need for retests .14 10.2 Test validity .14 10.3 Nonconforming test results .14 10.4 Heattreatmentofsamplesandcastings 14 Annex A (informative) Additional information on compacted (vermicular) graphite cast irons....15 Annex B (informative) Compacted (vermicular) graphite cast iron nodularity evaluation .18 Annex C (informative) Compacted (vermicular) graphite cast irons Properties and typical applications. .22 Annex D (informative) Cross-references of Is0 16112 grade designations to other standard grades of compacted (vermicular) graphite cast iron 23 Bibliography .24 iii ee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 d without license from IHS