ISO INTERNATIONAL STANDARD 6934-3 First edition 1991-12-15 Steel for the prestressing of concrete Part 3: Quenched and tempered wire Acierpourarmaturesdeprecontrainte Partie3:Fil trempe etrevenu Referencenumber isO 6934-3:1991(E) ISO 6934-3:1991(E) Foreword Iso(the International Organization for Standardization)is a worldwide federation of national standards bodies (isO member bodies).The work of preparingInternational Standards is normally carried out throughiso technical committees.Each member body interested in a subject for which a technical committee has been established hasthe rightto 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 (IEC)on all matters ofelectrotechnical standardization Draft International Standards adoptedby the technical committees are national Standard requires approval by at least75% of themember bodies casting a vote. InternationalStandardiso6934-3waspreparedbyTechnicalCommittee ISO/TC17,Steel,Sub-CommitteeSC16,Steelsforthereinforcementand prestressing ofconcrete. iso6934consistsofthefollowingparts,underthegeneral titleSteelfor the prestressing of concrete: Part 1:General requirements Part2:Cold-drawn wire Part3:Quenchedandtemperedwire --Part4:Strand Part5:Hot-rolled steelbarswithorwithout subsequentprocessing AnnexAofthispartofIsO6934isforinformationonly. ISO 1991 or by any means, electronic or mechanlcal, including photocopying and microfilm, without permission in writing from the publisher. InternationalOrganizationforStandardization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ISO 6934-3:1991(E) INTERNATIONALSTANDARD Steel for the prestressing of concrete - Part 3: Quenched and tempered wire Scope Definitions 3 1 Forthe purposes of this part of iso 6934, the defi- This part ofIso6934 specifiesrequirements for nitions given in iso 6934-1 and the following defi- round wire made of quenched and tempered high tensile steel, with a surface which is either plain, nitionapply. ribbed, grooved or indented. The product is deliv- 3.1 grooved wire: Wire whose surface has con- ered in coils,accordingtothe general requirements tinuous helical grooves along the length. specified in Iso 6934-1. Conditions of manufacture The wire shall be manufactured from hightensile steel in accordance withIso 6934-1. 2Normative references The wire shall be supplied without welds or other joints. The following standards contain provisions which, through reference in this text, constitute provisions Surface configuration of this part of iso 6934.At the time of publication, the editions indicated were valid. All standards are The surface of the wire may be either plain, ribbed subjectto revision,and parties to agreements based grooved or indented. The purpose of the ribbed, on this partof Iso 6934 are encouragedto investi- grooved or indented surface is to improve bond gatethepossibilityof applyingthe most recent edi- properties between wire and concrete.The type of tions of the standards indicated below.Members of surface configuration shall be specified by the pur- IEC and So maintain registers of currently valid chaser. InternationalStandards Examples of surface configurations are given in an- Iso6934-1:1991,Steelfortheprestressingofcon- nex A. crete--Part 1:General requirements. 6Properties Iso7801:1984,Metallicmaterials--Wire-Reverse bend test. 6.1 Dimensions,masses and strength ISo10065:1990.Steelbarsforreinforcementofcon- crete-Bend and rebend tests. Required properties and data for information of quenched and tempered wire aregiven in table1.