ISO INTERNATIONAL STANDARD 10799-2 First edition 2011-09-15 Cold-formed welded structural hollow sections of non-alloy and fine grain steels - Part 2: Dimensions and sectional properties Profils creux de constructionformes a froid, soudés, en aciernon allie ouagrainsfins- Partie 2:Dimensions et caracteristiquesduprofil Reference number ISO 10799-2:2011(E) @ISO2011 ISO 10799-2:2011(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 ISO 10799-2:2011(E) Contents Page Foreword .iv 1 Scope 2 Normativereferences 3 Terms and definitions 4 Symbols.. 5 Informationtobesuppliedbythepurchaser 6 7 Measurementofsizeandshape 7.1 General. 7.2 Outside dimension 7.3 7.4 Out-of-roundness 7.5 Concavity and convexity 7.6 Squareness of sides... 7.7 External corner profile.. 7.8 Twist.. 7.9 Straightness. 8 Dimensionsandsectionalproperties... Annex A(normative)Formulaeforcalculation of sectional properties @ ISO 2011 All rights reserved ili ISO10799-2:2011(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 10799-2 was prepared by Technical Committee ISO/TC 5,Ferrous metal pipes and metallic fittings Subcommittee SC 1, Steeltubes. This first edition of IsO 10799-2 cancels and replaces IsO 4019:2001, of which it constitutes a minor revision been carried out. Iso 10799 consists of the following parts, under the general title Cold-formed welded structural hollow sections of non-alloy and fine grain steels: Part1:Technicaldeliveryconditions 一 Part2:Dimensionsandsectionalproperties iv ISO 2011 - All rights reserved INTERNATIONALSTANDARD ISO 10799-2:2011(E) Cold-formed welded structuralhollow sections of non-alloyand fine grain steels - Part 2: Dimensionsandsectionalproperties Scope 1 This part of iso 10799 specifies the tolerances for cold-formed welded circular, square and rectangular structural hollow sections, and gives the dimensions and sectional properties for a range of standard sizes. NOTE For the technical delivery requirements, see ISO 10799-1. 2 Normativereferences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IsO10799-1,Cold-formed welded structural hollow sections of non-alloy and fine grain steels-Part1: Technical delivery conditions 3 Terms and definitions Symbols For the purposes of this document, the symbols given in Table 1 apply Table 1— Symbols Symbol Unit Defini