1005/4 International Standard (TSO) INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXKAYHAPOAHAA OPFAHW3AUMA O CTAHAAPTW3AUWWORGANISATION INTERNATIONALE DE NORMALISATION Railway rolling stock material - Part 4 : Rolled or forged wheel centres for tyred wheels for tractive and trailing stock - Quality requirements Materiel roulant de chemin de fer - Partie 4 : Corps de roues laminés ou forges pour roues bandagees pour matériel moteur et materiel remorqué-Prescriptions dequalite First edition - 1986-11-15 ISO 1005/4-1986 (E) UDC629.4.027.42 Ref. No. 1SO 1005/4-1986 (E) Descriptors : railway equipment, railway rolling stock, steel products, wheels, wheel disks, classifications, specifications, chemical composition, physical properties, mechanical properties, acceptance testing, testing conditions, marking, transportation. Price based on 9pages 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75% approval by the member bodies voting. International Standard ISO 1005/4 was prepared by Technical Committee ISO/TC 17, Steel. It cancels and replaces IS0 Recommendation R 1005/4-1969, of which it constitutes a technical revision. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. International Organization for Standardization, 1986 Printed in Switzerland ISO1005/4-1986(E) INTERNATIONALSTANDARD Railway rolling stock material - Part 4 : Rolled or forged wheel centres for tyred wheels for tractive and trailing stock -- Quality requirements Scope and field of application a) the number of this part of Iso 1005; b) the grade of steel (see 4.1 and table 1); 1.1This part of IS0 1005 specifies requirements for the manufacture and supply of rolled or forged wheel centres for tractive and trailing stock, which are suitable for tyring and are c) the type of heat treatment (see 4.2 and 6.5): made of unalloyed steels in accordance with table 1 and d) the degree of finish (see 4.3); clause 4.Spokedwheel centres are not covered bythispart of ISO1005. e) if a check analysis is required (see 5.1.2); 1.2 The quality requirements for tyres aregivenin f)the dimensions of the wheel centre (see 5.4); IS0 1005/1 and the quality requirements for forged and rolled wheel centres are given in this part of iS0 1005. Quality re- g) whether, in the case of finished wheel centres, the pos- quirements for cast wheel centres, if required, shall be subject itionandamountofresidualstaticunbalanceshall bemark- to agreementbetween purchaserand manufacturer. ed (see 5.2.3); 1.3In addition to this part of ISo 1005, the requirements of h) if any special marking is required (see 5.5); IS0404areapplicable. j)the conditions for machining and the elimination of un- balance (see 6.6); 2 References k) the type of inspection required (see clause 7): ISO 83, Steel -- Charpy impact test (U-notch). m) if special preparation and sampling of test pieces is re- ISo377,Selection and preparation of samples andtestpieces quired (see 7.7.2 and 7.7.3); forwroughtsteel. n) the methods of protection against corrosion and Iso404,Steelandsteelproducts-Generaltechnicaldelivery mechanical damage (see 8.1 and 8.2); requirements. p) if the conditi