ISO INTERNATIONAL 630-5 STANDARD Second edition 2023-12 Structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance Aciers de construction- Partie 5: Conditions techniques de livraison pour aciers de constructiona resistanceamelioreealacorrosionatmosphérique Reference number IS0 630-5:2023(E) ISO @ IS0 2023 IS0630-5:2023(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2023 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, 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. ISo copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier,Geneva Phone: +41 22 749 01 11 Email:[email protected] Website: www.iso.org Published in Switzerland ii @IS0 2023-All rights reserved IS0 630-5:2023(E) Contents Page Foreword iv 1 Scope .1 2 Normative references .1 3 Terms and definitions. .2 4 Classification and designation 222 4.1 Classification. 4.2 Designation (grades and qualities) 5 Informationtobe supplied bypurchaser. .3 5.1 Mandatory information 3 5.2 Options.. 3 6 Requirements 3 6.1 Steelmaking process. 3 6.2 Delivery condition 3 6.3 Chemical composition 3 6.3.1 3 Heat analysis 6.3.2 Product analysis 3 6.3.3 Carbon equivalent value 4 6.4 Mechanical properties 4 6.4.1Tensile properties. 4 6.4.2 Charpy V-notch impactproperties 4 6.5 Surface conditions 4 6.6 Internalsoundness 4 6.7 Dimensions,tolerances ondimensions andshapeandmass. 4 7 Inspection. .4 8 Sampling -Frequency of testing 4 8.1 Verification 4 8.2 Test units 5 8.2.1 Testunitsforgrades S235, S295,S355, S420, S460,S500, S550 5 8.2.2 Testunitsfor grades SG245, SG345,SG365, SG400, SG460,SG500, SG700 5 9 Test methods. 5 10 Marking. .5 11 Information about technological properties 5 11.1Weldability. 55 11.2 Useof steelwithimproved corrosionresistance AnnexA(normative)SteelgradesS235,S295,S355,S420,S460,S500,S550:Chemical compositionand mechanical properties. 6 AnnexB(normative)SteelgradesSG245,SG345,SG365,SG400,SG460,SG500,SG700: Chemicalcompositionandmechanicalproperties. .14 AnnexC (informative)Notes on weldability .20 AnnexD(informative) Additionalinformationforthe useof steel with improved .21 atmosphericcorrosionresistance Bibliography .22 @ IS0 2023-All rights reserved iii