7801 (ISo International Standard Metallic materials Wire Reverse bend test Matériaux métalliques -- Fils -- Essai de pliage alterne First edition - 1984-05-15 UDC 669-426 : 620.177.6 ISO 7801-1984 (E) Ref. No. 1SO 7801-1984 (E) Descriptors : metal products, wire, tests, bend tests, test equipment, test specimens. Price based on 4 pages Copyright International Organization for Standardization Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of developing International interested in a subject for which a technical committee has been authorized has the and non-governmental, in liaison with Iso, aiso 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 Councit. International Standard ISO 7801 was deveioped by Technicat Committee ISO/TC 164, Mechanical testing of metals, and was circulated to the member bodies in January 1983. It has been approved by the member bodies of the following countries: Australia Germany, F.R. Poland Austria Hungary Romania Bulgaria Italy South Africa, Rep. of Canada Japan Spain China Korea, Dem. P. Rep. of Sweden Mexico Switzerland Czechoslovakia Denmark Netherlands USA Norway USSR France The member body of the following country had expressed disapproval of the docu- ment on technical grounds: United Kingdom This International Standard ISo 7801 cancels and replaces the International Standards 1SO 144-1973 and ISO 2625-1973 of which it constitutes a technical revision. International Organization for Standardization, 1984 Printed in Switzerland Copyright International Organization for Standardization from IHS Not for Resale INTERNATIONAL STANDARD ISO 7801-1984 (E) Metallic materials - Wire - Reverse bend test Principle Scope and field of application This International Standard specifies the method for determin- The reverse bend test consists of repeated bending, through 9o° in opposite directions, of a test piece held at one end, each ing the ability of metallic wire of diameter or thickness 0,3 to bend being over a cylindrical support of a specified radius. 10 mm inclusive to undergo plastic deformation during reverse bending. The range of diameters or thicknesses for which this International Standard is applicable may be more exactly 3. Symbols and designations specified in the relevant product standard. Symbols and designations used in reverse bend testing of wires are specified in table 1 and shown in figure 1. IHS under ed without license from IHS