1、February 2017 English price group 30No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.040.10!%anf“2627567www.din.d
2、eDIN EN ISO 6892-1Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 68921:2016);English version EN ISO 68921:2016,English translation of DIN EN ISO 6892-1:2017-02Metallische Werkstoffe Zugversuch Teil 1: Prfverfahren bei Raumtemperatur (ISO 68921:2016);Englische Fass
3、ung EN ISO 68921:2016,Englische bersetzung von DIN EN ISO 6892-1:2017-02Matriaux mtalliques Essai de traction Partie 1: Mthode dessai temprature ambiante (ISO 68921:2016);Version anglaise EN ISO 68921:2016,Traduction anglaise de DIN EN ISO 6892-1:2017-02SupersedesDIN EN ISO 68921:200912www.beuth.deD
4、ocument comprises 90 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.02.17 DIN EN ISO 6892-1:2017-02 2 A comma is used as the decimal marker. National foreword This International Standard ISO 6892-1:2016 has been prepared by Te
5、chnical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 1 “Uniaxial testing” in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France), and within the framework of the parallel voting procedure at
6、ISO and CEN, the proposal was adopted as EN ISO 6892-1:2016. The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-42 AA Zug- und Duktilittsprfung fr Metalle. Users of this standard shou
7、ld take note of the following: In the previous version DIN EN ISO 6892-1:2009-12, the strain rate (including the crosshead separation rate) had been introduced as a testing rate (method A). In this edition, the recommendation of using method A from the National Foreword has been transferred to the i
8、ntroduction of the main part of the standard. Further explanations on the methods A and B are given in the newly introduced subclause 10.3. In method B, the adjustment and use of the testing rate for determining proof strength is described more precisely and so as to correspond to usual practice. Fu
9、rther information has been added in Annex F. In addition, in this annex, a method for determining the stiffness of the machine is introduced. The new(ly introduced) Annex G describes the determination of a modulus of elasticity in uniaxial tension. In the previous version, it had only been noted tha
10、t the slope of the elastic line of the stress-percentage extension curve mE determined in the standard tensile testing is a proxy for the determination of properties, e. g. proof strength, and only closely agrees with the material characteristic modulus of elasticity under certain conditions (e. g.
11、high resolution, double-sided averaging extensometers, perfect alignment of test piece etc.). However, in Annex G, the necessary test apparatus, the procedure and the evaluation of the test as well as the estimation of uncertainty are specified and described. The DIN Standards corresponding to the I
12、nternational Standards referred to in this document are as follows: ISO 377 DIN EN ISO 377 ISO 3183 DIN EN ISO 3183 ISO 7500-1 DIN EN ISO 7500-1 ISO 9513 DIN EN ISO 9513 ISO 11960 DIN EN ISO 11960 ISO 2566-1 DIN EN ISO 2566-1 ISO 2566-2 DIN EN ISO 2566-2 ISO 80000-1 DIN EN ISO 80000-1 DIN EN ISO 689
13、2-1:2017-02 3 Amendments This standard differs from DIN EN ISO 6892-1:2009-12 as follows: a) the urgent recommendation of using method A from the National Foreword of DIN EN ISO 6892-1:2009-12 has been included in the main part of the standard and updated; b) in the German version, the term “paralle
14、le Lnge” (“parallel length”) is used instead of “Versuchslnge” (“test length”), corresponding to the English reference version; c) a detailed description for the adjustment of the testing rate for the determination of the proof strength in method B has been added; d) Figure 8 a) and Figure 9 have be
15、en revised for a better understanding; e) Annex F has been revised and extended; f) normative Annex G for the determination of the modulus of elasticity of metallic materials using a uniaxial tensile test has been added and the main part of the standard has been revised aspects for determining the m
16、odulus of elasticity have been added and minor technical adaptations have been made; g) the standard has been restructured and renumbered introducing subclause 10.3 and Annex G; h) the Bibliography has been updated, in particular by current publications; i) the standard has been editorially revised.
17、 Previous editions DIN 1602: 1924-06, 1927-04, 1929-08, 1936-03, 14944x-02 DIN DVM A 114: 1935-12 DIN 50112: 1935xx-12 DIN 1605-2: 1936-02 DIN DVM 125 = DIN 50125 1940-08 DIN 50114: 1944xx-01, 1960-07, 1965-12, 1980-12, 1981-08 DIN 50143: 1944-10 DIN 50144: 1944-10 DIN 50125: 1951-04, 1986-03, 1991-
18、04 DIN 50146: 1951-05 DIN 50145: 1952-06, 1975-05 DIN 51210: 1961-08 DIN 50140: 1965-11, 1980-09 DIN 51210-1: 1976-04 DIN 51210-2: 1976-04 DIN EN 10002-1: 1991-04, 2001-12 DIN EN ISO 6892-1: 2009-12 DIN EN ISO 6892-1:2017-02 4 National Annex NA (informative) Indices for the percentage elongation aft
19、er fracture As a rule, a differentiation is made between proportional and non-proportional test pieces as regards gauge length and percentage elongation. In the case of proportional pieces, the gauge length Lois proportional to the square root of the original cross-section So(of any geometrical shap
20、e, e.g. round, oval, square, rectangular, etc.). = nullTo ensure comparability with previous data, the coefficient of proportionality has been internationally specified as k = 5,65. When the percentage elongation has been calculated on the basis of this coefficient of proportionality, no index is ad
21、ded. If another coefficient of proportionality has been used, this is to be indicated in the index to A for the elongation after fracture, e. g. k = 11,3: elongation after fracture A11,3. (The coefficients 5,65 and 11,3 are derived from the conversion of gauge length Lofor circular cross-sections to
22、 other cross-sections.) In the case of non-proportional test pieces, a differentiation is made between three different test piece geometries, according to Annex B: Original gauge length Lo= 50 mm for a test piece width bo= 12,5 mm gauge length Lo= 80 mm for a test piece width bo=20 mm gauge length L
23、o= 50 mm for a test piece width bo= 25 mm (JIS Z 2205-Probe) The original gauge length, along with the unit mm, is to be added as an index to the symbol A: e.g. A50mm, A80mm. Because the unit “mm” is included in the index, it is clear that the number does not refer to the coefficient of proportional
24、ity k. Table NA.1 Equivalent indices for percentage elongation as specified in previous standards Percentage elongation as in DIN EN ISO 6892 Gauge length LoSimple equation for Lofor a circular cross-section Equivalent symbol for percentage elongation as in withdrawn standards A Lo= 5,65 null oLo= 5
25、 null doDIN 50145:1975-04: A5A11,3Lo= 11,3 null oLo= 10 null doDIN 50145:1975-04: A10A50 mmLo= 50 mm DIN 50114:1981-08: AL = 50A80 mmLo= 80 mm DIN 50114:1981-08: AL = 80 DIN EN ISO 6892-1:2017-02 5 National Annex NB (informative) Comparison of international symbols used in tensile testing Table NB.1
26、 Comparison of international symbols used in tensile testing Symbol used in this standard English French German German symbol Anglo-American symbol Unit e Engineering strain Allongement conventionnel Dehnung e % R Engineering stress Contrainte conventionnelle Spannung oder Nenn-spannung S MPa True s
27、train (logarithmic strain) Dformation vraie Wahre Dehnung oder Umformgrad True stress Contrainte vraie Wahre Spannung kf or R MPa DIN EN ISO 6892-1:2017-02 6 National Annex NC (informative) Bibliography DIN EN ISO 377, Steel and steel products Location and preparation of samples and test pieces for
28、mechanical testing DIN EN ISO 3183, Petroleum and natural gas industries Steel pipe for pipeline transportation systems DIN EN ISO 7500-1, Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of
29、the force-measuring system DIN EN ISO 9513, Metallic materials Calibration of extensometer systems used in uniaxial testing DIN EN ISO 11960, Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells DIN EN ISO 2566-1, Steel Conversion of elongation values Part 1: Carbon
30、 and low alloy steels DIN EN ISO 2566-2, Steel Conversion of elongation values Part 2: Austenitic steels DIN EN ISO 80000-1, Quantities and units Part 1: General EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6892-1 July 2016 ICS 77.040.10 Supersedes EN ISO 6892-1:2009English Version Metal
31、lic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2016) Matriaux mtalliques - Essai de traction - Partie 1: Mthode dessai temprature ambiante(ISO 6892-1:2016) Metallische Werkstoffe - Zugversuch - Teil 1: Prfverfahren bei Raumtemperatur (ISO 6892-1:2016)This Eu
32、ropean Standard was approved by CEN on 15 April 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references c
33、oncerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member
34、 into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Franc
35、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI
36、TEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6892-1:2016 EEuropean foreword 4Introduction .61 Scope . 72 Normative references 73 Terms and
37、definitions . 74 Symbols . 125 Principle . 136 Test pieces 146.1 Shape and dimensions . 146.1.1 General. 146.1.2 Machined test pieces . 146.1.3 Unmachined test pieces 156.2 Types. 156.3 Preparation of test pieces . 157 Determination of original cross-sectional area 158 Original gauge length and exte
38、nsometer gauge length .168.1 Choice of the original gauge length 168.2 Marking the original gauge length 168.3 Choice of the extensometer gauge length . 169 Accuracy of testing apparatus 1610 Conditions of testing 1710.1 Setting the force zero point . 1710.2 Method of gripping . 1710.3 Testing rates
39、 . 1710.3.1 General information regarding testing rates 1710.3.2 Testing rate based on strain rate (method A) 1710.3.3 Testing rate based on stress rate (method B) 1910.3.4 Report of the chosen testing conditions .2111 Determination of the upper yield strength 2112 Determination of the lower yield s
40、trength .2113 Determination of proof strength, plastic extension2114 Determination of proof strength, total extension .2215 Method of verification of permanent set strength .2216 Determination of the percentage yield point extension 2217 Determination of the percentage plastic extension at maximum f
41、orce .2318 Determination of the percentage total extension at maximum force 2319 Determination of the percentage total extension at fracture .2320 Determination of percentage elongation after fracture .2421 Determination of percentage reduction of area .2422 Test report 2523 Measurement uncertainty
42、.2623.1 General 2623.2 Test conditions . 2623.3 Test results. 26Contents PageDIN EN ISO 6892-1:2017-02 EN ISO 6892-1:2016 (E)2Foreword 5Annex A (informative) Recommendations concerning the use of computer-controlled tensile testing machines 40Annex B (normative) Types of test pieces to be used for t
43、hin products: sheets, strips, and flats between 0,1 mm and 3 mm thick 46Annex C (normative) Types of test pieces to be used for wire, bars, and sections with a diameter or thickness of less than 4 mm .49Annex D (normative) Types of test pieces to be used for sheets and flats of thickness equal to or
44、 greater than 3 mm and wire, bars, and sections of diameter or thickness equal to or greater than 4 mm .50Annex E (normative) Types of test pieces to be used for tubes .53Annex F (informative) Estimation of the crosshead separation rate in consideration of the stiffness (or compliance) of the testin
45、g equipment 55Annex G (normative) Determination of the modulus of elasticity of metallic materials using a uniaxial tensile test 57Annex H (informative) Measuring the percentage elongation after fracture if the specified value is less than 5 % 66Annex I (informative) Measurement of percentage elonga
46、tion after fracture based on subdivision of the original gauge length 67Annex J (informative) Determination of the percentage plastic elongation without necking, Awn, for long products such as bars, wire, and rods69Annex K (informative) Estimation of the uncertainty of measurement .70Annex L (inform
47、ative) Precision of tensile testing Results from interlaboratory programmes 74Bibliography .81DIN EN ISO 6892-1:2017-02 EN ISO 6892-1:2016 (E) 3 European Foreword This document (EN ISO 6892-1:2016) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” in collaboration wi
48、th Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” 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 endorsement, at the latest by January 2017,
49、 and conflicting national standards shall be withdrawn at the latest by January 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes
