ISO INTERNATIONAL STANDARD 12633-2 First edition 2011-09-15 Hot-finished structural hollow sections of non-alloy and fine grain steels 一 Part 2: Dimensions and sectional properties Profils creux de construction finis a chaud, en acier non allie ou a grains fins- Partie2:Dimensionsetcaracteristiquesduprofil Reference number ISO 12633-2:2011(E) @ISO2011 ISO 12633-2:2011(E) COPYRIGHTPROTECTEDDOCUMENT ISO2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2011 All rights reserved ISO12633-2:2011(E) Contents Page Foreword .iv 1 Scope 2 Normative referenc 3 Terms and definitions 4 Symbols.. 5 Informationtobesuppliedbythepurchaser 5.1 Mandatory information. 5.2 Options. 6 Tolerance: 7 Measurement of size and shape. 7.1 7.2 Outsidedimensions 7.3 Thickness.. 7.4 Out-of-roundness 7.5 Concavity and convexity 7.6 Squareness of sides.. 7.7 External cornerprofile. 7.8 7.9 Straightness 8 Dimensionsandsectionalproperties AnnexA(normative)Formulaeforcalculationofsectionalproperties 24 @ ISO 2011 All rights reserved ili ISO12633-2:2011(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 12633-2 was prepared by Technical Committee ISO/TC5,Ferrous metal pipes and metallic fittings Subcommittee SC 1, Steeltubes. This first edition of ISO 12633-2 cancels and replaces ISO 657-14:2000, of which it constitutes a minor have been carried out. Iso 12633 consists of the following parts, under the general title Hot-finished structural hollow sections of non-alloyand finegrain steels: Part1:Technicaldeliveryconditions 一 Part2:Dimensionsandsectionalproperties iv ISO 2011 - All rights reserved INTERNATIONALSTANDARD ISO12633-2:2011(E) Hot-finished structural hollow sections of non-alloy and fine grain steels - Part 2: Dimensions and sectional properties Scope 1 This part of Iso 12633 specifies the tolerances for hot-finished circular, square and rectangular structural hollowsections,andgivesthedimensionsandsectionalpropertiesforarangeofstandardsizes NOTE For the technical delivery requirements, see Iso 12633-1, 2 Normative reference references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso12633-1,Hot-finished structural hollow sections of non-alloy and fine grain steels—Part 1:Technical delivery conditions Terms and definitions 3 4 Symbols For the purposes of this document, the symbols given in Table 1 apply. Table1—Symbols Symbol un Definition A cm2 Cross-sectional area As m²/m Surface area per unit length B mm Nominal length of side of a square hollo