1、BRITISH STANDARDBS EN 14811:2006Railway applications Track Special purpose rail Grooved and associated constructionThe European Standard EN 14811:2006 has the status of a British StandardICS 45.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59
2、g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIBS EN 14811:2006This British Standard was published under the authority of the Standards Policy and Strategy Com
3、mittee on 29 September 2006 BSI 2006ISBN 0 580 48458 0National forewordThis British Standard was published by BSI. It is the UK implementation of EN 14811:2006.The UK participation in its preparation was entrusted by Technical Committee RAE/2, Railway track components, to Subcommittee RAE/2/-/1, Rai
4、ls and steel sleepers.A list of organizations represented on RAE/2/-/1 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot conf
5、er immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14811August 2006ICS 45.080English VersionRailway applications - Tra
6、ck - Special purpose rail - Groovedand associated constructionApplications ferroviaires - Voie - Rails speciaux pour lasuperstructure - Rails gorge et profils de constructionassocisBahnanwendungen - Oberbau - Spezialschienen -Rillenschienen und zugehrige KonstruktionsprofileThis European Standard wa
7、s approved by CEN on 2 June 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 any alteration. Up-to-date lists and bibliographical references concerning such nationa
8、lstandards 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 translationunder the responsibility of a CEN member into its own language and notified
9、 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, N
10、orway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form
11、and by any means reservedworldwide for CEN national Members.Ref. No. EN 14811:2006: ELicensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4
12、Information to be supplied by the purchaser .7 5 Steel grades7 6 Dimensions, static properties, linear mass and tolerances8 7 Manufacture8 7.1 Product integrity 8 7.1.1 Factory production control.8 7.1.2 Best practice manufacture8 7.2 Blooms9 7.3 Grooved rails and associated construction rail profil
13、es .9 7.4 Marking .9 7.4.1 Rolling marks .9 7.4.2 Hot stamping10 7.4.3 Other identification11 7.4.4 Exceptions11 8 Acceptance tests .11 8.1 Laboratory tests.11 8.1.1 General11 8.1.2 Chemical composition 11 8.1.3 Hydrogen 13 8.1.4 Hardness test .13 8.1.5 Tensile test .14 8.1.6 Retests 14 8.2 Dimensio
14、nal and straightness tolerances 14 8.2.1 Profile14 8.2.2 Straightness and twist 17 8.2.3 Cutting and drilling17 8.2.4 Gauges18 8.3 Surface imperfections .18 8.3.1 General18 8.3.2 Protrusions.18 8.3.3 Depressions in the web and foot .19 8.3.4 Depressions in the running surface 19 8.4 Surface microstr
15、uctural damage19 8.5 Proving and dressing of surface imperfections .19 8.6 Determination of the linear mass.20 Annex A (normative) Grooved rail profiles and associated construction rail profiles 23 Annex B (normative) Gauges.50 Annex C (informative) Holes in grooved rails 71 Annex D (informative) El
16、ectric repair welding and electric conductivity of the rails.73 Bibliography 74 Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 3 Foreword This document EN 14811:2006 has been prepared by Technical Committee CEN/TC 256 “Railway application
17、s”, the secretariat of which is held by DIN. This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006 Other standa
18、rds on rails include: EN 13674 Railway applications Track Rail that comprises 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
19、 27 kg/m to 46 kg/m. 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irela
20、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 4 Introduction This introduction
21、 provides an explanation of the concept and reasoning for preparing this standard. Its description ensures that, during any future revisions, restrictions will be removed if technical progress has been made or will be kept if this is not the case in order that safety is maintained if new manufacture
22、rs, products and technologies appear. The most commonly used delivery conditions in Europe for the supply of grooved rails and associated construction rail profiles have been reviewed during the preparation of this standard. Modern rail production technology and the requirements of commuter railways
23、 within the European Union have demanded that the technical requirements for the products specified in EN 14811 be reconsidered. Whenever possible, this EN 14811 is performance-based. It recognizes the European quality management standard EN ISO 9001 and requires manufacturers to offer the latest pr
24、oven technology consistently to satisfy the demanding quality of the required product. The steels are classified according to hardness and not to tensile strength. The acceptance tests were developed in order to monitor the properties of the grooved rail steels and grooved rails and associated const
25、ruction rail profiles that are of importance for the production of grooved rails and associated construction rail profiles and which comply with the demands of commuter railways. The steel grades covered by EN 14811 reflect trends in commuter railway usage and heat-treated rails as well as associate
26、d construction rail profiles. This standard contains profiles for grooved rails and associated construction rail profiles for grooved rail facilities having a linear mass of 42 kg/m and above. To ensure the supply of high quality rails, some restrictions on production processes have been imposed. Th
27、is standard is applicable to all procurements covered by the European Procurement Directive (93/38/EEC of 14 June 1993). Additionally, CEN has requested a performance-based standard taking into account safety requirements and the application of the most recent technologies. With respect to the Direc
28、tive, it is acknowledged that there are (and with respect to safety requirements also shall be) options to deviate from the standard upon agreement between purchaser and manufacturer. This standard reflects the change in philosophy compared with the traditional content of delivery conditions for gro
29、oved rails and associated construction rail profiles. The most frequently used delivery conditions in Europe for the supply of grooved rails and construction rail profiles have been reviewed. All the aspects that are important for the purchasers and manufacturers have been analysed to ensure that th
30、e overall contents are particularly appropriate and relevant for the European Standard. For example, the classification of the steel grades of grooved rails and associated construction rail profiles and also other aspects of the European Standard has been based on hardness, not on tensile testing. W
31、hilst the two are directly related, hardness testing is very quick and inexpensive to carry out and provides more relevant guidance to the user, particularly where properties vary in different parts of the profile. One new aspect of the European Standard is the integration of a clause on quality man
32、agement and testing in order to assure the product integrity. In order to ensure that the quality management systems are consistent for all manufacturers and that all purchasers can be sure about the consistency of the product quality of these safety-related components, this standard recommends that
33、 the manufacturer operates a quality management system at least equivalent to the requirements of EN ISO 9001. This makes it possible to dispense with detailed requirements on tests and comprehensive testing. Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
34、EN 14811:2006 (E) 5 Ideally, manufacturing methods should not be referred to in product standards. However, some rail properties are either not exactly known or cannot be determined with an adequately high statistical reliability. In these cases, as the final possibility, reference is made to manufa
35、cturing methods that correspond to best practice. Methods and requirements are specified that offer the maximum probability that the necessary product is obtained in the track. Future technological solutions can increase the list of these requirements but will preferably reduce them. Examples of whe
36、re todays technology is taken as the basis, but developments are progressing, are: determination of hydrogen content; minimum area reduction for rolling of grooved rails and associated construction rail profiles; roller straightening effects on contact scrub. Licensed Copy: Wang Bin, na, Wed Dec 13
37、01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 6 1 Scope This European Standard specifies requirements for grooved rails and associated construction rail profiles for grooved rail facilities with a linear mass of 42 kg/m and upwards for use in tram transport systems. NOTE Groov
38、ed rails are also used for harbour and industrial tracks. Six pearlitic steel grades are specified in a hardness range between 200 HBW and 390 HBW. The rails are either non-heat-treated or heat-treated and are made from non-alloyed (C-Mn) steel in both cases. This standard specifies 18 specific groo
39、ved rail profiles and 7 specific construction rail profiles. The grooved rail profiles can also be used as construction elements in switches and crossings. Two grooved rail classes are specified differing in requirements for profile tolerances. 2 Normative references The following referenced documen
40、ts are indispensable for the application of this document. For dated references, only the edition cited applies. 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 testing at ambie
41、nt temperature EN 10027-1, Designation systems for steel Part 1: Steel names EN 10027-2, Designation systems for steel Part 2: Steel numbers EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1:2005) 3 Terms and definitions For the purposes of this document, the fo
42、llowing terms and definitions apply. 3.1 heat liquid steel melt tapped out of a converter or electric arc furnace which after continuous casting includes a given number of blooms relating to the weight of the heat and the extent of the mixing zone. In the case of sequence casting, the blooms belongi
43、ng to the mixing zone are to be clearly defined 3.2 sequence number of heats of the same steel grade which undergo continuous casting in a new or repaired tundish. Tundishes may be used in parallel if the caster has many strands 3.3 heat-treated rail rail that has undergone accelerated cooling from
44、austenitizing temperature during the metallurgical transformation period 3.4 head-hardened grooved rail grooved rail where the rail head and/or the grooved head has been heat-treated Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 7 3.5 co
45、nstruction rail profile rail used in switches and crossings which carries the wheel NOTE Grooved rail profiles can also be used as construction elements in switches and crossings. 3.6 grooved head that part of the profile that provides the space for the wheel flange. It is also used as the supportin
46、g element for the pavement NOTE The term “grooved head” has been introduced instead of “guiding head”, “guiding rail” and other similar terms. 3.7 rolling bead protuberance that is formed at the roll gap during rolling 4 Information to be supplied by the purchaser The purchaser shall provide the fol
47、lowing information at the time of tender or order: a) the rail profile (see annex A); b) the steel grade (see clause 5); c) the individual length or individual lengths of the rails. Unless otherwise agreed, short lengths shall be supplied in pairs and they shall not be less than half the individual
48、length of the rails; also, the total mass of the short lengths shall not exceed 10 % of the total mass of the order; d) the location and dimensions of holes (see Annex C); e) paint code requirements (see 7.4.3). 5 Steel grades The applicable steel grades are given in Table 1. The hardness ranges sha
49、ll meet the requirements in Table 1. For the steel grades in Table 1, the steel names in accordance with EN 10027-1 and the steel numbers in accordance with EN 10027-2 shall be used. Other requirements that can be agreed between the manufacturer and the purchaser are given in Annex D. Licensed Copy: Wang Bin, na, Wed Dec 13 01:20:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14811:2006 (E) 8 Table 1 Steel grades Stahl grade a Steel name Material number Hardness range in HBW Description Type of rolling mark R200 1.0521 200 to 240 Non-alloye
