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1、BRITISH STANDARD BS EN 13674-4:2006 Railway applications Track Rail Part 4: Vignole railway rails from 27 kg/m to, but excluding 46 kg/m The European Standard EN 13674-4:2006 has the status of a British Standard ICS 45.080 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2
2、006, Uncontrolled Copy, (c) BSI BS EN 13674-4:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006 ISBN 0 580 48291 X National foreword This British Standard is the official English language version of EN 13674-4:2006. Th
3、e UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement inter
4、national or European publications referred to in this document may be found in the BSI Catalogue under the 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 purp
5、ort to include all the necessary provisions of a contract. Users are responsible for its correct application. 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 committe
6、e any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 62, an i
7、nside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUR
8、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13674-4 April 2006 ICS 45.080 English Version Railway applications - Track - Rail - Part 4: Vignole railway rails from 27 kg/m to, but excluding 46 kg/m Applications ferroviaires - Voie - Rails - Partie 4: Rails Vignole de masse comprise entre 27 kg/
9、m et 46 kg/m, 46 kg/m non compris Bahnanwendungen - Oberbau - Schienen - Teil 4: Vignolschienen mit einer lngenbezogenen Masse zwischen 27 kg/m und unter 46 kg/m This European Standard was approved by CEN on 9 January 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh
10、ich stipulate the conditions 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 Central Secretariat or to any CEN member. This European St
11、andard exists 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 Central Secretariat has the same status as the official versions. CEN members are the national st
12、andards bodies of Austria, Belgium, Cyprus, Czech 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. E
13、UROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13674-4:2006: E Licensed
14、 Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13674-4:2006 (E) 2 Contents page Foreword3 1 Scope6 2 Normative references6 3 Terms and definitions .6 4 Information to be supplied by the purchaser .7 5 Steel grades7 6 Dimensions, static propertie
15、s, linear mass and tolerances8 7 Manufacture8 7.1 Product integrity8 7.1.1 Factory production control.8 7.1.2 Best practice manufacture8 7.2 Blooms9 7.3 Rails 9 7.4 Identification.9 7.4.1 Branding.9 7.4.2 Hot stamping9 7.4.3 Cold stamping. 10 7.4.4 Other identification. 10 8 Qualification of the man
16、ufacturer. 10 9 Acceptance tests 10 9.1 Laboratory tests 10 9.1.1 General. 10 9.1.2 Chemical composition . 10 9.1.3 Microstructure. 14 9.1.4 Decarburisation. 14 9.1.5 Hardness 15 9.1.6 Tensile tests 16 9.1.7 Retest procedures 16 9.2 Dimension tolerances 16 9.2.1 Profile. 16 9.2.2 Straightness and tw
17、ist . 17 9.2.3 Cutting and drilling. 17 9.3 Gauges. 18 9.4 Inspection for internal quality and surface quality . 18 9.4.1 internal quality 18 9.4.2 Surface quality 20 Annex A (normative) Rail profiles. 31 Annex B (informative) Comparison of steel designations referred to in this European Standard co
18、mpared to those in EN 10027-1 and EN 10027-2 . 61 Bibliography. 62 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13674-4:2006 (E) 3 Foreword This European Standard (EN 13674-4:2006) has been prepared by Technical Committee CEN/TC 256 “R
19、ailway 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 national standards shall be withdrawn at the latest by
20、October 2006. This part of EN 13674 is the fourth of the 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:
21、 Check rails; Part 4: Vignole railway rails from 27 kg/m 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
22、Railway applications Track Flash butt welding of rails Part 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;
23、 prEN 14730-1 Railway applications Track Aluminothermic 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
24、 applications Track Special purpose rail Grooved and associated 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
25、this European Standard: Austria, Belgium, Cyprus, Czech 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 King
26、dom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13674-4:2006 (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 d
27、uring future revisions, restrictions are removed where technology progresses and 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 dur
28、ing the preparation of this European Standard. However, modern rail production 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
29、 System standard EN ISO 9001 and requires manufacturers to offer the latest proven 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 characteristic
30、s of the rail steel and rail that are of relevance to the production of high quality 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. This European Standard includes rail profiles for Vignole
31、rails having a linear mass from 27 kg/m to, but excluding 46 kg/m. To ensure the supply of high quality rails, some restrictions on production processes have been imposed. This European Standard supersedes national standards covered by the scope. In addition CEN required, where possible, a performan
32、ce based standard, taking into account safety implications and 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 be
33、tween the user and the manufacturer. This European Standard reflects 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 w
34、ith the aim of ensuring that all of the content had specific 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
35、more relevant guidance to the user particularly where properties vary in different parts of the profile. Since many rail manufacturers would not have previously carried out proving trials, this European Standard includes a prerequisite for all manufacturers to prove conformity against a set of quali
36、fying test criteria at the time of tendering. The qualifying tests include 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 o
37、n results from rail known to have performed well in demanding track installations. One aspect of this European Standard, which is a complete break from tradition, is the inclusion of quality assurance and inspection clause as part of product integrity. Licensed Copy: sheffieldun sheffieldun, na, Sun
38、 Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13674-4:2006 (E) 5 In order that quality management systems are consistent across all manufacturers and that users have the best assurance for the consistency of required product quality on this safety critical component of the track, th
39、e 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 detailed method and calibration descriptions on items such as normal chemical composition deter
40、mination and the need to define more extensive testing. Ideally, manufacturing techniques should not be 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 practic
41、e manufacturing techniques have been included as a last resort. The equipment specified is that which gives 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 t
42、echnological state of the art renders the standard less than complete include: oxide/oxygen relationships; hydrogen test techniques; roller straightening effects on residual stresses; roller straightening effects on contact scrub; measurement and effect of residual stresses throughout the rail. Lice
43、nsed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:56:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13674-4:2006 (E) 6 1 Scope This part of EN 13674 specifies flat bottom Vignole railway rails from 27 kg/m to, but excluding 46 kg/m. Five pearlitic steel grades are specified covering a rail har
44、dness range of 200 HBW to 390 HBW and include non-heat-treated non-alloy steels, non-heat-treated alloy steels and heat-treated non-alloy steels. There are 13 rail profiles specified in this European Standard, but these may not be available in all steel grades. 2 Normative references The following r
45、eferenced documents are indispensable for the application of this European Standard. 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:
46、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 13674-1:2003, Railway applications Track Rail Part 1: Vignole railway rails 46 kg/m and above EN ISO 6506-1, Metallic mate
47、rials Brinell hardness test Part 1: Test method (ISO 6506-1:2005) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 heat one liquid steel melt tapped out of a converter or electric arc furnace which includes after continuous casting a
48、given number of blooms relating to the weight of the heat and the extension of the mixing zone NOTE In the case of sequence casting the blooms belonging to the mixing zone should be clearly defined. 3.2 sequence number of heats, of the same steel grade, which undergo continuous casting in tundishes.
49、 Tundishes may be used in parallel if the caster has many strands 3.3 heat treated rail rail that has undergone accelerated cooling from austenitizing temperature during the metallurgical transformation period 3.4 re-heated rail all rolled rail that has undergone re-austenitization for heat treatment purposes 3.5 mill heat treated rail heat treated rail that has not undergone re-austenitization after rolling Lice