1、BRITISH STANDARDBS EN13674-4:2006Railway applications Track Rail Part 4: Vignole railway rails from27 kg/m to, but excluding 46 kg/mThe European Standard EN 13674-4:2006 has the status of a British StandardICS 45.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g
2、54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIBS EN 13674-4:2006This British Standard was published under the authority of the Standards Policy a
3、nd Strategy Committee on 31 May 2006 BSI 2006ISBN 0 580 48291 XNational forewordThis British Standard is the official English language version of EN 13674-4:2006. The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibilit
4、y 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 section entitled “Internationa
5、l 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. Compliance with a British St
6、andard 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 related international and European
7、 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 62, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments
8、 issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13674-4April 2006ICS 45.080English VersionRailway applications - Track - Rail - Part 4: Vignole railway railsfrom 27 k
9、g/m to, but excluding 46 kg/mApplications ferroviaires - Voie - Rails - Partie 4: RailsVignole de masse comprise entre 27 kg/m et 46 kg/m, 46kg/m non comprisBahnanwendungen - Oberbau - Schienen - Teil 4:Vignolschienen mit einer lngenbezogenen Massezwischen 27 kg/m und unter 46 kg/mThis European Stan
10、dard was approved by CEN on 9 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 any alteration. Up-to-date lists and bibliographical references concerning su
11、ch 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 translationunder the responsibility of a CEN member into its own language an
12、d 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Neth
13、erlands, Norway, 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
14、 any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13674-4:2006: ELicensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-4:2006 (E) 2 Contents page Foreword3 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Informat
15、ion 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 Rails 9 7.4 Identification.9 7.4.1 Branding .9 7.4.2 Hot stam
16、ping9 7.4.3 Cold stamping. 10 7.4.4 Other identification. 10 8 Qualification of the manufacturer . 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 Rete
17、st procedures 16 9.2 Dimension tolerances 16 9.2.1 Profile. 16 9.2.2 Straightness and twist . 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
18、 (informative) Comparison of steel designations referred to in this European Standard compared to those in EN 10027-1 and EN 10027-2 . 61 Bibliography. 62 Licensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-4:2006 (E) 3 Foreword This European Standard (EN 13
19、674-4:2006) has been 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 c
20、onflicting national standards shall be withdrawn at the latest by 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
21、 conjunction with Vignole railway rails 46 kg/m and above; Part 3: 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, R
22、260, R260Mn and R350HT grade rails in a fixed plant; prEN 14587-2 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 o
23、f rails Part 3: Welding in association with crossing construction; 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, a
24、pproval of contractors and acceptance of welds; prEN 14811 Railway 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 standard
25、s 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman
26、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEN 13674-4:2006 (E) 4 Introduction This introduction provides an explanation of the concepts and reasoning used in the drafting of this European
27、 Standard. Its inclusion also ensures that during 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 su
28、pply of railway rails have been reviewed during 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 perfor
29、mance based, recognises the European Quality 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 b
30、een designed to control those characteristics 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
31、Standard includes rail profiles for Vignole 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 additi
32、on CEN required, where possible, a performance 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 derogati
33、on from this European Standard to operate between 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
34、both user and manufacturer were considered with 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 ver
35、y quick and cheap to carry out and provides 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 manufacturer
36、s to prove conformity against a set of qualifying 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 con
37、fidence, acceptance limits have been based on 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. Lic
38、ensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEN 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 comp
39、onent 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 detailed method and calibration descriptions on items such as normal chem
40、ical composition determination 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 s
41、uch cases best practice 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. Example
42、s of areas where the technological 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 thr
43、oughout the rail. Licensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy, (c) BSIEN 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 Licensed Copy: Wang Bin, na, Mon Aug 07 03:37:59 BST 2006, Uncontrolled Copy,
