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Page 2DIN EN 10002-1: 2001EN 10002-1Metallic materials-Te nsile test ingPart 1: Method of test at ambie nt temperatureEn glish version of DINEN 10002-1Page 2DIN EN 10002-1: 2001Page 2DIN EN 10002-1: 2001ICS 77.040.10Supersedes April 1991 editio n.Page 2DIN EN 10002-1: 2001Page 2DIN EN 10002-1: 2001Metallische WerkstoffeZugversuch Teil 1: Pr u fverfahren beiRaumtemperaturEuropean Standard EN 10002-1 : 2001 has the status of a DINStandard.A comma is used as the decimal marker.Nati onal forewordThis sta ndard has been prepared by ECISS/TC 1.srThe responsible German body involved in the preparation of this standard was theNormen ausschussMaterialpr u figi(Materials Testing Standards Committee), Technical CommitteePr u fverfahren mit z u gigBeanspruchung f u r Metalle .DIN EN 10002-1 con forms in most respects with ISO6892, except for Annex A, which has been added tocover computer-c on trolled ten sile testi ng machi nes.It should be no ted that in Germa ny DIN 50125 con ti nues to be valid to deal with the form, dime nsions and desig nati on of ten sile test pieces.See Nati onal Annex for desig nati on of perce ntage elon gati on after fracture.Amen dme ntsThis sta ndard differs from the April 1991 editi on as follows:a) The limits for the strain rate have been changed.b) Methods if determining the percentage total elongation at maximum force and the percentage reducti on of area have bee n in cluded.c) Ann exes A, F, H and J have bee n in cluded.Previous editi onsDIN DVM 125 = DIN 50125: 1940-08, 1951-04, 1986-03; DIN DVM A 114: 1935-12;DIN 50112: 1935xx-12; DIN 50114: 1944x-01, 1960-07, 1965-12, 1980-12, 1981-08;DIN 50140: 1965-11, 1980-09; DIN 50143: 1944-10; DIN 50144: 1944-10; DIN 50145: 1952-06, 1975-05;DIN 50146: 1951-05; DIN 51210: 1961-08; DIN 51210-1: 1976-04; DIN 51210-2: 1976-04;DIN EN 10002-1:1991-04.Contin ued overleaf. EN comprises 52 pages.Ref. No. DIN EN 10002-1: 2001-12En glish price group17 Sales No. 111703.02? No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut f u r NormuiVj ,eBerlin. Beuth Verlag GmbH , 10772 Berlin, Germany, has the exclusive right of sale for German Standards(DIN-Normen).Natio nal Annex NADesig nati on of perce ntage elon gati on after fractureA differentiation is made between proportional and non-proportional test pieces. See note to subclause 442 for details of designation of the percentage elongation after fracture of such test pieces.Table NA.1:Correlati on of symbols used to desig nate the perce ntage elon gati on after fractureSymbol as inDIN EN 10002-1Origi nal gauge len gthSimplified formula for LoCorresp onding desig nati on in withdraw n Germa n sta ndardsA5,56 *0L 0 = 5 doDIN 50145: A 5A 11,311,3，JS0L0 = 10 d0DIN 50145: A 10A 50 mm50 mmDIN 50114: AL = 50A 80 mm80 mmDIN 50114: AL = 80EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORMEN 10002-1July 2001ICS 77.040.10Descriptors:SupersedesEN 10002-1:1990.En glish vers ionMetallic materials-Te nsile test ingPart 1: Method of test at ambie nt temperatureMat e riaux m e talliques EssaisMetallische Werkstoffe -de traction-Partie 1: MethodeZugversuch -Teil 1: Pr u fver-d essai a la temp e rature ambiantefahren bei RaumtemperaturThis European Sta ndard was approved by CENon 2001-05-12.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con diti ons for giv ing this Europea n Stan dard the status of a n ati onal sta ndard without any alterati on.Up-to-date lists and bibliographical refere nces concerning such n ati onal sta nd- ards may be obtained on application to the Management Centre or to any CEN member.The European Standards exist in three official versions (English, French, German). A vers ion in any other lan guage made by tran slati on un der the resp on sibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versi ons.CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denm ark, Finland, Fran ce, Germa ny, Greece, Icela nd, Irela nd, Italy, Luxembourg, the Netherla nds, Norway, Portugal, Spain, Swede n, Switzerla nd, and the Un ited Kin gdom.e?Europea n Committee for Sta ndardizati on Comit e Europ e en de Normalisation Europ?isches Komitee f u r NormungMan ageme nt Cen tre: rue de Stassart 36, B-1050 Brussels? 2001. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members.Ref. No. EN 10002-1: 2001 EPage 3EN 10002-1: 2001Conte ntsForeword1 Scope 2 Normative references3 Principle4 Definitions5 Symbols and designations6 ribCt&h-*-*-*a-*HdHBB 6.1 Shape and dimensions. * *6.2 Types6.3 Preparation of test pieces7 Determination of original cross-sectional area (So)8 Marking the original gauge length (Lo) *“*10 Conditions of testing10.1 Method of gripping10.2 Test rate11 Determination of percentage elongation after fracture (A)12 Determination of the percentage total elongation at maximum force 卫甘初“13 Determination of proof strength, non proportional extension (Hp)14 Determination of proof strength, total extension (R()15 Method of verificatian of permanent set strength (Rr)16 Determination of percentage reduction of area (2)17 Test reportAnnex A (informative) Recommendations concerning the use of computer controlled tensile testingmachinesAnnex B (normative) Types of test pieces to be used for thin products : sheets, strips and flatsbetween 0T1 mm and 3 mm thickAnnex C (normative) Types of test pieces to be used for wire, bars and sections with a diameter orickn&SS* of ies*s* 4 mm *i.*-a*-.*.*-*aAnnex D (normative) Types of test pieces to be used for sheets and flats ol thickness equal to or greater than 3 mm, and wire, bars and sections of diameter or thickness equal to or greater than 4 mm.34Annex E (normative) Types of test pieces to be used for tubes 37Annex F (informative) Measuring the percerTtage elongation aiter fracture if the spec计ied vaiue is lessAnnex G (informative) Measurement of percentage elongation after fracture based 口n subdivision of the original gauge length 39Annex H (informative) Manual method of determination cf the percentage total elongation at maximum force long products such as bars, wire, rods 41Annex J (informative) Precision of tensile testing and estimation of the uncertainty of measurement42Bibliography 52ForewordThis European Standard has been prepared by Technical Committee ECISS/TC 1 Steel - Mechanical testing , the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorse me nt, at the latest by January 2002, and conflicting national standards shall be withdrawn at the latest by January 2002.This European Standard supersedes EN 10002-1:1990.The European Standard EN 10002-1 MetaHic materiala - Tensile testing - Part 1: Method of 怕曲(at ambient temperature) was approved by CEN on 27 November 1989.After a first 5 years lifetime, ECISS decided to revise this standard.The revised prEN 10002-1 was di scused during two meetings of ECiSS/TCWSC1 with the participation ot 4 CEN member countries (Belgium1 France, Germany, United Kingdom).EN 10002 was composed of live parts:Part 1: Method of test (at ambi&nt temperature)Part 2: Verification of the force tneasttring system of the tensile testing machinesPart 3: C& fibration of force proving instruments used for the verification of uniaxial testing machinesPart 4: Verification of extensometers used in uniaxial testingPari 5; Method of testing at elevated temperatureNOTE Part 2 ha$ been already replaced by EN ISO 7500-1. Parts 3 and 4 will be replaced by corresponding ISO st 自 n dard$.The annexes B, C. D and E are normative. The annexes Ad F, GP H and J are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cech RepubliCj Denmark. Finlandt France, Germany, Greece. Iceland, Ireland. Italy, Luxembourg, Netherlands, Norway, PortugaL Spain, Sweden, Switzerland and the United Kingdom.Page 9EN 10002-1: 20011 ScopeThis European Standard specifies the method for tensile testing of metallic materials and defines the mechanieal properties which can be determined at ambient temperature.NOTE Informative annex A indicates complementary rocominend包tions for computer controlled testing machines. It is the intention, based on further developments by manufacturers and users that gnriuic A will become normative in the next revision of this standard.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the 卩ublications are listed hereafter. For dated references subsequent amendments to or revisions of any of these publications apply to this European Standard cniy when incnrporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).EN 10002-4, Metaliic materials - Tensile testing - Part 4: Verification of extensometers used in uniaxial testing.EN 20286-2. ISO system of limits and fits - Part 2 : Tables of standard tolerances grades and limits deviations for holes and shafts (ISO28&-2:19S8).EN ISO 377, Steel and s怕el products - Location of samples and test pieces for mechanical testing (ISO 377:1997).EN ISO 2566-1 ? Steel conversion of elongation values - Part 1 : Carbon and alloy steels (ISO 2566-1:1984).EN ISO 2566-2, Steel conversion of elongation values - Part 2: Austenitic 百t詢w (ISO 25&6-2:19&4).EN ISO 7500-1 Metallic material - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verificsition and csfibration of force measuring (ISO 7500-1:1999).3 PrincipleThe test involves straining a test piece in tension, generally to fracture, for the purpose of determining one or more of the mechanical properties defined in clause 4.The test 旳 carried out at ambient temperature bEtween 10 QC and 35 Cr unless otherwise specified. Tests carried out under controlled conditions &hall be made at a tempsrature of 23 C 54 Terms and definitionsFor the purpose of this European Standard, the following terms and definitions apply :4.1gauge length (L)length of the cylindrical or prismatic portion of the test piece on which elongation is measured. In particular, a distinction is rride between :4.1.1original gauge length (Lp)gauge length before application of fores4.1.2final gauge length b)gauge length after rupture of the test piece (see 11,1)4.2parallel length (Lcparallel portion of the reduced section oi the test pieceNOTE The concept of parallel length is replaced by the concept of distance between grips for non-machined test pieces.4.3elongationincrease in the original gauge length (Lo) at any moment during the test4.4percentage elongationelongation expressed as a percentag巳 of the original gauge length (Lo)4.4.1percentag permanent elongationincrease in the original gauge length of a test piece after removal of a specified stress (see 4.9), expressed as a percentage of the original gauge length (Lo)4.4.2percentage elongation after fracture (4)permanent elongation of the gauge length after fracture (Lu - Lo), expressed as a percentage of the original gauge length(丄JNOTE In the case of proportional test pieces, only if the original gauge length is other than 5,65where SQ is theoriginal cross-sectional area of the parallel length, the symbol A should be supplemented by an index indicating the coefficient of proportionality used, for example :1 3 = percentage elongation of a gauge length (Lo) of 11,3tn the case of non-proportion日I test pieces, the symbol A should be supplemented by an index indicating the original gauge length used, expressed in miHimetres, for example :眉80 mm = percentage elongation of a gauge length (Lo) of 80 mm.4.4.3percentage total elongatJon at fracture (舛)total elongation (elastic elongation plus plastic elongation) of the gauge length at the moment of fracture expressed as a percentage of the original gauge length (Lo)4.4.4percentage elongation at maximum forceincrease in the gauge length of the test piece at maximum forceH expressed as a percentage of the original gauge length gNOTE A distinction is made between the percentage total elongation at maximum force () and the percentage non- prop ortio nal elongation at maximum force (州)(see Figure 1).4.5extensometer gauge length (J)length of the parallel portion of the test piece used for the measurement of extension by means o1 an extensometerNOTE It is recommended that for measurement of yield 吕nd proof strength parameters LJ2. Et further recommencted that tor measurement of parameters l*at or after maximum foru已is approximately equal to Lo.4.6extensionincrease in the extensometer gauge length (Le) at a given moment of the test1)5朋何-=54.6.1percentage permanent extensionincrease in the extensometerlength after removal from the test piece of a specified stress, expressed as apercentage of the extensometer gauge length (Le)4.6.2percentage yield point extension (4e)in discontinuous yielding materials, the extension between the start of yielding and the start of uniform work hardeningNOTE It is expressed a percentage of the extensometer gauge length (Le).4.7percentage reduction of area (Z)maximum change in cross-sectional area which has occurred during the test (耳-Su) expressed as a percentage of the original cross-sectional area (So)4.8maximum force (洛)the greatest force which lhe test piece withstands during the test once the yield point has been passedFor materials, without ytetd pointit is the maximum value during the test.4.9stressforce at any monnent during the test divided by the original cross-sectional area (So) of the test piece4.9.1tensile strength (Rm)stress corresponding to ths maximum force (%)4.9.2yield strengthwhen the metallic material exhibits a yield phenomenon, stress correspondin to the point reached during the test at which plastic deformation occurs without any increase in the force. A distinction is made between :4.9.2.1upper yield strengthvalue of stress at the moment when the iirst decrease in force is observed (see Figure 24想22lower yield strength (/?eL)lowest value of stress during plastic yielding, ignoring any initial transient effects (see Figure 2)4.9.3proof strength, nan-proportional extension (Rp)stress at which a non-proportional extension is equal to a specified percentage of the extensometer gauge length (Le) (see Figure 3)NOTE The symbol used is followed by a suffix giving the prescribed percentage, for example :4.9.4proof strength, total extension (用stress at which total extension (elastic extension plus plastic extension) es equ綁 to a specified percentage of the ejctensometer gauge length (LJ (see Figure 4)NOTEThe symbol used is followed by a suffix giWng the prescribed percentage lor example : % 54.9.5permanent set strength 耳Jstress at which, after removal of force, a specified permanent elongation or extension expressed respectivey as a percentage of the original gauge length (Lo) or extensometer gauge length (Le) has not been exceeded (see Figure 5)NOTE The symbol used is followed by a suffix giving the specified percentage of the original gauge tenglh Lo) or of the extensometer gauge length (Le), for example :片卍？4.10fracturephenomena which is deemed to occur when total separation of the test piece occurs or force decreases to become nominally zero5 Symbols and designationsSymbols and corresponding designations are given in Table 1,Table 1 Symbols and designationsReference numberaSymbolUnitDesignation1詐mmTest pieceThickness of a flsat tet piece or wall thicknc&s of a tube2bmmWidth of the parallel length of a flat test piece or average width of the long Au din 剖 strip3dmmtaken from a tube or width of flat wireDiameter ot the parallel lengtli ot a circular test piece, or diameter of round wire or4Dmmintemai diameter of 自 tube External diameter ot a tLtbe5GmmOriginal gauge length-%mmInitial gauge length for determination of （$ee annex H）6hmmParallel length-4mmExtensometer gauge length7AmmTotal length of test pieceBsmmFinal gauge length after fracture-mmFinal gauge length after fraciture for determination of 冲g （see annex H&気mm2Original cro$-&$ctional ares of the parallel lengthi10Summ-MiNmum croES-sectional area after fracture-k-CGefficienrt of proportionality11Z%S：） 住Percentage reduction of area : ；x 100XGripped ends13mmElongationElongation after fracture :14%丄U _丄0Percentage elongation after fracturs ;15%L人 xiooPercentage yield point extension-mmExtension at maximum force16%Percentage non-proportbnal elongation at maxim urn force （岳）17霍t钻Percentage total elongation at maximum force （扁）|18%Percentage total elongation at fracture19-%Specified percentage npn-propartional extension20-%Percentage total extension see 峙21-%Specied percentage permanent set extension or elongationContinued1Table 1 (concluded)Referetiee number aSymbolUnitDesignation22232425262728TTl 甩L 為%ENMPadMPaMPaMPaMParPaMPaForceMaximum forceYield strength - Proof strength - Tensile strenglhUpp&r yield strengthLower yield strengthTensile strergthProof strengtTi, non-prcportional oxtonsionPermanent set strengthProof strength, tM extensionModulus of chstielty a See Figures 1to 13.bThe symbol Ti$ also used in steel tube product standards.C See 4.4.2.d 1 MPa = 16 Test piece6.1 Shape and dimensions6.1J GeneralThe shape and dimensions of the test pieces depend on the shape and dimensions of the metallic product from which the test pieces are taken.The test piece is usually obtained by machining a sample from the product or a pressed blank or casting. However products of constant cross-section (sections, bars, wires, etc.) and also as cast test pieces (i.e. for cast irons and non-ferrous alloys) may be tested without being machinedThe cross-section oi the test pieces may be circular, square, rectangular, annular or, in special cases, of some other shape.Test pieces, the original gauge length o1 which is related to the original cross-sectional area by the equation k are called proportional test pieces, The internationally adopted value for k is 5F65. The original gauge length shall be noi less thn 20 mrn, When the cross*sectional area of the test piece is too smalE for this requirement to be met with the coefficient k value of 5,65f a higher value (preferably 11,3) or a non-proportion al te&t piece may be used.In the case of n on-pro portion al test pieces, the origs nal gaug
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