1、August 2016 English price group 12No 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 77.140.75!%Y.I“2541138www.din.deD
2、IN EN 10305-2Steel tubes for precision applications Technical delivery conditions Part 2: Welded cold drawn tubes;English version EN 10305-2:2016,English translation of DIN EN 10305-2:2016-08Przisionsstahlrohre Technische Lieferbedingungen Teil 2: Geschweite kaltgezogene Rohre;Englische Fassung EN 1
3、0305-2:2016,Englische bersetzung von DIN EN 10305-2:2016-08Tubes de prcision en acier Conditions techniques de livraison Partie 2: Tubes souds tirs froid;Version anglaise EN 10305-2:2016,Traduction anglaise de DIN EN 10305-2:2016-08SupersedesDIN EN 10305-2:2010-05www.beuth.deDTranslation by DIN-Spra
4、chendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 25 pages 07.16 DINEN10305-2:2016-082 A comma is used as the decimal marker. National foreword This document (EN 10305-2:2016) has been prepared by Technical Committee ECISS/TC 110 “Steel tu
5、bes, and iron and steel fittings” (Secretariat: UNI, Italy). The responsible German body involved in its preparation was DIN-Normenausschuss Eisen und Stahl (DIN Standards Committee Iron and Steel), Working Committee NA 021-00-09-09 UA Przisionsstahlrohre. This European Standard specifies technical
6、delivery conditions for welded cold drawn tubes which are characterized by having precisely defined tolerances on dimensions, a specified surface roughness and defined mechanical properties. Amendments This standard differs from DIN EN 10305-2:2010-05 as follows: a) the references have been updated;
7、 b) the options have been renumbered in such a way that the number of options are now the same throughout all parts; c) the standard has been editorially revised. Previous editions DIN 2393: 1938x-07, 1957-11 DIN 2393-1: 1967-07, 1981-07, 1994-09 DIN 2393-2: 1967-07, 1981-07, 1994-09 DIN EN 10305-2:
8、 2003-02, 2010-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10305-2 March 2016 ICS 77.140.75 Supersedes EN 10305-2:2010English Version Steel tubes for precision applications - Technical delivery conditions - Part 2: Welded cold drawn tubes Tubes de prcision en acier - Conditions technique
9、s de livraison - Partie 2 : Tubes souds tirs froid Przisionsstahlrohre - Technische Lieferbedingungen -Teil 2: Geschweite kaltgezogene Rohre This European Standard was approved by CEN on 18 January 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
10、nditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exi
11、sts in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member 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 st
12、andards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
13、Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE 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 reser
14、ved worldwide for CEN national Members. Ref. No. EN 10305-2:2016 EEN 10305-2:2016 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Symbols . 6 5 Classification and designation 7 5.1 Classification . 7 5.2 Designation 7 6 Information to be sup
15、plied by the purchaser . 7 6.1 Mandatory information 7 6.2 Options 7 6.3 Example of an order . 8 7 Manufacturing process 8 7.1 Steelmaking process 8 7.2 Tube manufacture and delivery conditions 8 8 Requirements . 9 8.1 General 9 8.2 Chemical composition . 9 8.3 Mechanical properties 10 8.4 Appearanc
16、e and internal soundness. 11 8.5 Dimensions and tolerances 12 8.5.1 Outside diameter, inside diameter, wall thickness and eccentricity 12 8.5.2 Lengths . 15 8.5.3 Straightness 16 8.5.4 Preparation of ends . 17 9 Inspection . 17 9.1 Types of inspection 17 9.2 Inspection documents 17 9.2.1 Types of in
17、spection documents. 17 9.2.2 Content of inspection documents . 17 9.3 Summary of inspection and testing . 18 10 Sampling 18 10.1 Test unit . 18 10.2 Preparation of samples and test pieces . 19 10.2.1 Location, orientation and preparation of samples and test pieces for mechanical tests . 19 10.2.2 Te
18、st pieces for roughness measurement . 19 11 Test methods . 19 11.1 Tensile test . 19 11.2 Flattening test 19 11.3 Drift expanding test . 20 11.4 Dimensional inspection . 20 11.5 Roughness measurement 20 DIN EN 10305-2:2016-08 EN 10305-2:2016 (E) 3 11.6 Visual examination 21 11.7 Non-destructive test
19、ing 21 11.7.1 Testing for longitudinal imperfections . 21 11.7.2 Leak tightness 21 11.8 Retests, sorting and reprocessing 21 12 Marking 21 13 Protection and packaging 21 Bibliography . 23 DIN EN 10305-2:2016-08 EN 10305-2:2016 (E) 4 European foreword This document (EN 10305-2:2016) has been prepared
20、 by Technical Committee ECISS/TC 110 “Steel tubes and iron and steel fittings”, the secretariat of which is held by UNI. 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 September 2016 and conflict
21、ing national standards shall be withdrawn at the latest by September 2016. 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 docume
22、nt supersedes EN 10305-2:2010. In comparison with the previous edition, the following technical changes have been made: a) References were adapted; b) The options were renumbered in such a way that now throughout all parts the number of options are the same; c) Editorial updates. EN 10305, Steel tub
23、es for precision applications Technical delivery conditions, consists of the following parts: Part 1: Seamless cold drawn tubes Part 2: Welded cold drawn tubes Part 3: Welded cold sized tubes Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems Part 5: Welded cold sized square
24、 and rectangular tubes Part 6: Welded cold drawn tubes for hydraulic and pneumatic power systems According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cypr
25、us, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
26、 Kingdom. DIN EN 10305-2:2016-08 EN 10305-2:2016 (E) 5 1 Scope This European Standard specifies the technical delivery conditions for welded cold drawn steel tubes of circular cross section for precision applications with specified outside diameter D 150 mm. This document may also be applied to othe
27、r types of cross section. Tubes according to this document are characterized by having precisely defined tolerances on dimensions and a specified maximum surface roughness. Typical fields of application are in the automotive, furniture and general engineering industries. 2 Normative references The f
28、ollowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10020:200
29、0, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10027-1, Designation systems for steels - Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10052:1993, Vocabulary of heat treatme
30、nt terms for ferrous products EN 10168, Steel products - Inspection documents - List of information and description EN 10204, Metallic products - Types of inspection documents EN 10266:2003, Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product st
31、andards EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377) EN ISO 2566-1, Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO 2566-1) EN ISO 4287, Geometrical product specifications (GPS) - Surfac
32、e texture: Profile method - Terms, definitions and surface texture parameters (ISO 4287) EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1) EN ISO 8492, Metallic materials - Tube - Flattening test (ISO 8492) EN ISO 8493, Metallic materials -
33、 Tube - Drift-expanding test (ISO 8493) EN ISO 10893-1, Non-destructive testing of steel tubes - Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness (ISO 10893-1) DIN EN 10305-2:2016-08 EN 10305-2:
34、2016 (E) 6 EN ISO 10893-2, Non-destructive testing of steel tubes - Part 2: Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of imperfections (ISO 10893-2) EN ISO 10893-3, Non-destructive testing of steel tubes - Part 3: Automated full
35、 peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-3) EN ISO 10893-10, Non-destructive testing of steel tubes - Part 10: Automated full peripheral ultrasonic test
36、ing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections (ISO 10893-10) ISO 11484, Steel products - Employers qualification system for non-destructive testing (NDT) personnel 3 Terms and definitions For the purposes of thi
37、s document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10266:2003 and the following apply. 3.1 employer organization for which a person works on a regular basis Note 1 to entry: The employer can be either the tube manufacturer or a third party organization pro
38、viding services, such as non-destructive testing (NDT). 3.2 manufacturer party to produce and to deliver tubes in accordance with this document Note 1 to entry: Where tubes are delivered by an intermediary, see EN 10021:2006, Clause 6. 3.3 imperfection discontinuity in the wall or on the pipe surfac
39、es detectable by methods described in this document Note 1 to entry: Imperfections with a size complying with the acceptance criteria specified in this document are considered to have no practical implication on the intended use of the product. 3.4 defect imperfection of a size not complying with th
40、e acceptance criteria specified in this document Note 1 to entry: Defects are considered to adversely affect or limit the intended use of the product. 3.5 parent coil coil originating from the hot rolling process prior to any further operation (pickling, slitting, cold rolling or coating) 4 Symbols
41、For the purposes of this document, the symbols in EN 10266:2003 apply. NOTE For tubes specified by the outside diameter and by the inside diameter, “T” is the specified or the calculated wall thickness in this document. DIN EN 10305-2:2016-08 EN 10305-2:2016 (E) 7 5 Classification and designation 5.
42、1 Classification In accordance with the classification system in EN 10020 the steel grades given in Table 2 are non-alloy quality steels. 5.2 Designation For the tubes covered by this document the steel designation consists of the number of this document (EN 10305-2) plus either: a) the steel name i
43、n accordance with EN 10027-1; or b) the steel number in accordance with EN 10027-2. 6 Information to be supplied by the purchaser 6.1 Mandatory information The following information shall be obtained by the manufacturer at the time of enquiry and order: a) quantity (mass or total length or number);
44、b) term “tube”; c) dimensions (see 8.5); d) steel designation (see 5.2); e) delivery condition (see 7.2.2); f) type of tube length and, where applicable, the length (see 8.5.2); g) type of inspection document (see 9.1). 6.2 Options A number of options are specified in this document and these are lis
45、ted below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tubes shall be supplied in accordance with the basic specification (see 6.1). Option 1: specification of a steel grade not specified in this document (see 8.2);
46、 Option 3: suitability for hot-dip galvanizing (see 8.2); Option 4: surface condition for further processing (see 8.4.1); Option 8: measurement of surface roughness (see 8.4.3); Option 9: specific surface roughness (see 8.4.3); Option 10: tube surfaces free from not easily removable substances (see
47、8.4.6); Option 12: non-destructive testing for the detection of longitudinal imperfections (see 8.4.7); DIN EN 10305-2:2016-08 EN 10305-2:2016 (E) 8 Option 13: non-destructive testing for verification of leak-tightness (see 8.4.7); Option 15: specification of a cross section other than circular (see
48、 8.5.1.1); Option 16: reduced diameter tolerances (see 8.5.1.2); Option 17: unilateral diameter tolerances (see 8.5.1.2); Option 18: reduced eccentricity (see 8.5.1.3); Option 19: reduced wall thickness tolerance (see 8.5.1.4); Option 20: unilateral wall thickness tolerance (see 8.5.1.4); Option 22:
49、 reduced maximum deviation from straightness (see 8.5.3); Option 23: specified end finishing (see 8.5.4); Option 25: flattening or drift expanding test for delivery condition +A or +N (see Table 8); Option 26: test unit with tubes from one cast only (see 10.1); Option 28: alternative marking (see Clause 12); Option 29: delivery without corrosion protection (see Clause 13); Option 30: specified corrosion protection (see C
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