1、BRITISH STANDARDBS EN13674-2:2006Railway applications Track Rail Part 2: Switch and crossing rails used in conjunction with Vignole railway rails 46 kg/m and aboveThe European Standard EN 13674-2:2006 has the status of a British StandardICS 45.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g
2、3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIBS EN 13674-2:2006This British Standard was published under the auth
3、ority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006ISBN 0 580 48292 8National forewordThis British Standard is the official English language version of EN 13674-2:2006.The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track component
4、s, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the
5、section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application
6、. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor rela
7、ted international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 107 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.A
8、mendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13674-2April 2006ICS 45.080English VersionRailway applications - Track - Rail - Part 2: Switch and crossingra
9、ils used in conjunction with Vignole railway rails 46 kg/m andaboveApplications ferroviaires - Voie - Rails - Partie 2: Rails pourappareils de voie utiliss avec des rails Vignole de massesuprieure ou gale 46 kg/mBahnanwendungen - Oberbau - Schienen - Teil 2: Schienenfr Weichen und Kreuzungen, die in
10、 Verbindung mitVignolschienen ab 46 kg/m verwendet werdenThis European Standard was approved by CEN on 16 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without a
11、ny alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by
12、translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece,
13、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre
14、: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13674-2:2006: ELicensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-2:2006 (E) 2 Contents Page Forewo
15、rd3 Introduction .4 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Information to be supplied by the purchaser .7 5 Steel grades8 6 Dimensions, static properties, linear mass and tolerances8 7 Manufacture9 7.1 Product integrity 9 7.1.1 Factory production control.9 7.1.2 Best practic
16、e manufacture9 7.2 Blooms9 7.3 Rails 9 7.4 Identification.9 7.4.1 Branding .9 7.4.2 Hot stamping. 11 7.4.3 Cold stamping. 11 7.4.4 Other identification. 11 8 Qualification of the manufacturer . 11 9 Acceptance tests 12 9.1 Laboratory tests 12 9.1.1 General. 12 9.1.2 Chemical composition . 12 9.1.3 M
17、icrostructure. 16 9.1.4 Decarburisation. 17 9.1.5 Oxide cleanness 17 9.1.6 Sulfur prints. 17 9.1.7 Hardness 18 9.1.8 Tensile tests 19 9.1.9 Retest procedures 19 9.2 Dimension tolerances 19 9.2.1 Profile. 19 9.2.2 Straightness, surface flatness and twist 20 9.2.3 Cutting and drilling. 24 9.3 Gauges.
18、24 9.4 Inspection for internal quality and surface quality .24 9.4.1 Internal quality 24 9.4.2 Surface quality 26 Annex A (normative) Rail profiles 38 Annex B (informative) Comparison of steel designations referred to in this standard compared to those in EN 10027-1 and EN 10027-2 105 Annex ZA (info
19、rmative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. 106 Bibliography. 107 Licensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-2:2006 (E) 3 Foreword This European Standard (EN 13674-2:2006) has be
20、en prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. 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 October 2006, and conflicting nationa
21、l standards shall be withdrawn at the latest by October 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association to support Essential Requirements of EU Directive 96/48/EC of 23 July 1996 on the interoperability of
22、 the trans-European high-speed rail system amended by the Directive 2004/50/EC of the European Parliament and of the Council of 29 April 2004. For relationship with EU Directive 96/48/EC, see informative Annex ZA, which is an integral part of this document. This part of EN 13674 is the second of the
23、 series EN 13674 Railway applications Track Rail which consists of the following parts: Part 1: Vignole railway rails 46 kg/m and above; Part 2: Switch and crossing rails used in conjunction with Vignole railway rails 46 kg/m and above; Part 3: Check rails; Part 4: Vignole railway rails from 27 kg/m
24、 to, but excluding 46 kg/m. Other standards planned for publication include the following: prEN 14587-1 Railway applications Track Flash butt welding of rails Part 1: New R220, R260, R260Mn and R350HT grade rails in a fixed plant; prEN 14587-2 Railway applications Track Flash butt welding of rails P
25、art 2: New R220, R260, R260Mn and R350HT grade rails by mobile welding machines at sites other than at a fixed plant; prEN 14587-3 Railway applications Track Flash butt welding of rails Part 3: Welding in association with crossing construction; prEN 14730-1 Railway applications Track Aluminothermic
26、welding of rails Part 1: Approval of welding processes; prEN 14730-2 Railway applications Track Aluminothermic welding of rails Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds; prEN 14811 Railway applications Track Special purpose rail Grooved and ass
27、ociated construction; prEN xxxxx Railway applications Track Restoration of rails by electric arc welding. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
28、Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BS
29、T 2006, Uncontrolled Copy, (c) BSIEN 13674-2:2006 (E) 4 Introduction This introduction provides an explanation of the concepts and reasoning used in the drafting of this European Standard. Its inclusion also ensures that during future revisions, restrictions are removed where technology progresses a
30、nd held where it does not, thus ensuring continued safety as new manufacturers, products and technologies are introduced. The most commonly used standards of the world for the supply of railway rails have been reviewed during the preparation of this European Standard. However, modern rail production
31、 technology within the European Union has demanded a completely new look at the philosophy and content of this part of EN 13674. Whenever possible this part of EN 13674 is performance based, recognises the European Quality System standard EN ISO 9001 and requires manufacturers to offer the latest pr
32、oven technology to consistently satisfy the demanding quality of the required product. Rail grading is based on hardness rather than tensile strength. The acceptance tests have been designed to control those characteristics of the rail steel and rail that are of relevance to the production of high q
33、uality rails and the demands of the railway. The steel grades covered by this part of EN 13674 reflect trends in railway usage and heat treated rails are included. The standard includes rail profiles for switch and crossing rails used in conjunction with Vignole rails having a linear mass 46 kg/m an
34、d above. To ensure the supply of high quality rails, some restrictions on production processes have been imposed. This European Standard supersedes other standards covered by the scope. In addition CEN required, where possible, a performance based standard, taking into account safety implications an
35、d at the same time addressing modern production technology. It was recognised that there would be few opportunities (and these would have to be for transparent safety considerations) for derogation from this European Standard to operate between the user and the manufacturer. This European Standard r
36、eflects this change in philosophy from the traditional content of rail standards. A review was undertaken of the most commonly used rail standards of the world. All relevant aspects important to both user and manufacturer were considered with the aim of ensuring that all of the content had specific
37、usefulness and relevance. For example rail grading and much of this European Standard has been based on hardness rather than tensile strength. Whilst the two are directly related, hardness is very quick and cheap to carry out and provides more relevant guidance to the user particularly where propert
38、ies vary in different parts of the profile. Since many rail manufacturers would not have previously carried out proving trials, the standard includes a prerequisite for all manufacturers to prove conformity against a set of qualifying test criteria at the time of tendering. The qualifying tests incl
39、ude all “normal” acceptance test results plus new type-casting features such as fracture toughness, fatigue and residual stress (see EN 13674-1). To provide users with the necessary confidence, acceptance limits have been based on results from rail known to have performed well in demanding track ins
40、tallations. One aspect of the standard, which is a complete break from tradition, is the inclusion of quality assurance and inspection clause as part of product integrity. In order that quality management systems are consistent across all manufacturers and that users have the best assurance for the
41、consistency of required product quality on this safety critical component of the track, the rail standard requires that the manufacturers quality assurance systems are at least equivalent to the requirements of EN ISO 9001. The inclusion of this requirement also reduces the need to incorporate detai
42、led method and calibration descriptions on items such as normal chemical composition determination and the need to define more extensive testing. Licensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-2:2006 (E) 5 Ideally, manufacturing techniques should not be
43、 referenced in a product standard. However, some rail attributes are either not known in an exact manner or are not measurable with satisfactory statistical significance. In such cases best practice manufacturing techniques have been included as a last resort. The equipment specified is that which g
44、ives the best probability of achieving the required product for use in track. In the future new technology can add to, but preferably will reduce or delete such items. Examples of areas where the technological state of the art renders the standard less than complete include: oxide/oxygen relationshi
45、ps; hydrogen test techniques; roller straightening effects on residual stresses; roller straightening effects on contact scrub; measurement and effect of residual stresses throughout the rail. Licensed Copy: Wang Bin, na, Mon Aug 07 03:36:00 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-2:2006 (E) 6
46、1 Scope This part of EN 13674 specifies switch and crossing rails that carry railway wheels. These are used in conjunction with Vignole railway rails. This part of this standard is not applicable for the check rails that do not carry railway wheels. Eight pearlitic steel grades are specified coverin
47、g a hardness range of 200 HBW to 390 HBW and include non heat treated non-alloy steels, non heat treated alloy steels, heat treated non-alloy steels and heat treated low alloy steels. There are 30 rail profiles specified in this standard, but they may not all be available in all steel grades. Rails
48、specified in EN 13674-1 may also be used as switch and crossing rails and if so used they shall comply with the requirements of EN 13674-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited a
49、pplies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10002-1, Metallic materials Tensile testing Part 1: Method of test at ambient temperature EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 1: General requirements EN 10276-1, Chemical analysis of ferrous materials Determination of oxygen in steel and iron Part 1: Sampling and preparation of steel samples
