ISO INTERNATIONAL 4200 STANDARD Fourth edition 1991-02-15 Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length Tubes lisses en acier, soudés, et sans soudure - Tableaux generaux des dimensions etdesmasseslinéiques Reference number ISO 4200 : 1991 (E) Not for Resale No reprodu working permitted without license from IHS ISO 4200 : 1991 (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 established has the right to be represented on that committee, International organizations, govern- mental and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC) on al! matters of electrotechnical standardization. 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. International Standard ISO 4200 was prepared by Technical Committee ISO/TC 5, Ferrous metal pipes and metallic fittings, Sub-Committee Sc 1, Steel tubes. This fourth edition cancels and replaces the third edition (iSO 4200 : 1985), tables 2 and 3 of which have been technically revised by the addition of the outside diameter of 12,7 mm to series 2. Annex A of this International Standard is for information only ISO 1991 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any writing from the publisher. International Organization for Standardization Case postale 56 · CH-1211 Geneve 20 : Switzerland Printed in Switzerland without license from IHS Not for Resale 1SO 4200 : 1991 (E) Introduction This International Standard has two main purposes : to give guidance on the selection of sizes for all activities concerned with the standardization of steel tubes, both nationally and internationally; to serve as a ready reckoner and to avoid the use by different countries of different masses for a tube of the same size. ii Not for Resale