EN 10025-6-2004 en Hot rolled products of structural steels - Part 6 Technical delivery conditions for flat products of high yield strength structural steels in the quenched and te.pdf

1、BRITISH STANDARD BS EN 10025-6:2004 +A1:2009 Hot rolled products of structural steels Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition ICS 77.140.10; 77.140.50 BS EN 10025-6:2004+A1:2009 This British Standard was

2、published under the authority of the Standards Policy and Strategy Committee on 17 November 2004 BSI 2009 ISBN 978 0 580 65569 2 National foreword This British Standard is the UK implementation of EN 10025-6:2004+A1:2009. Its supersedes BS EN 10025-6:2004, which is withdrawn. The start and finish of

3、 the text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“ The UK participation in its preparation was entrusted to Technical Committee ISE/

4、12, Structural steels. A list of organizations represented on this committee 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 can

5、not confer immunity from legal obligations. Amendments/corrigenda issued since publication 31 July 2009 Implementation of CEN amendment A1 2009 : EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10025-6:2004+A1 May 2009 ICS 77.140.10; 77.140.50 Supersedes EN 10025-6:2004 English Version Hot roll

6、ed products of structural steels - Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition Produits lamins chaud en aciers de construction - Partie 6: Conditions techniques de livraison pour produits plats en aciers haut

7、e limite dlasticit ltat tremp et revenu Warmgewalzte Erzeugnisse aus Bausthlen - Teil 6: Technische Lieferbedingungen fr Flacherzeugnisse aus Sthlen mit hherer Streckgrenze im vergteten Zustand This European Standard was approved by CEN on 1 April 2004 and includes Amendment 1 approved by CEN on 17

8、April 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which 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 o

9、btained on application to the CEN Management Centre or to any CEN member. This European Standard 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 CEN Man

10、agement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, N

11、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any fo

12、rm and by any means reserved worldwide for CEN national Members. Ref. No. EN 10025-6:2004+A1:2009: EEN 10025-6:2004+A1:2009 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 2.1 General standards .5 2.2 Standards on dimensions and tolerances (see 7.7.1) 6 2.3 Standards on testing .6

13、3 Terms and definitions .6 4 Classification and designation .6 4.1 Classification 6 4.1.1 Main quality classes 6 4.1.2 Grades and qualities .6 4.2 Designation 7 5 Information to be supplied by the purchaser .7 5.1 Mandatory information 7 5.2 Options .7 6 Manufacturing process .8 6.1 Steel making pro

14、cess 8 6.2 Deoxidation or grain size 8 6.3 Delivery conditions 8 7 Requirements .8 7.1 General 8 7.2 Chemical composition 8 7.3 Mechanical properties .9 7.3.1 General 9 7.3.2 Impact properties .9 7.3.3 Improved deformation properties perpendicular to the surface 9 7.4 Technological properties 9 7.4.

15、1 Weldability 9 7.4.2 Formability . 10 7.4.3 Suitability for hot-dip zinc-coating 10 7.5 Surface properties 11 7.6 Internal soundness . 11 7.7 Tolerances on dimensions and shape, mass 11 8 Inspection 11 8.1 General . 11 8.2 Type of inspection and inspection document . 11 8.3 Frequency of testing 11

16、8.3.1 Sampling 11 8.3.2 Test units . 11 8.3.3 Verification of chemical composition . 12 8.4 Tests to be carried out for specific inspection 12 9 Preparation of samples and test pieces . 12 9.1 Selection and preparation of samples for chemical analysis 12 9.2 Location and orientation of samples and t

17、est pieces for mechanical tests . 12 9.2.1 General . 12 9.2.2 Preparation of samples 13 9.2.3 Preparation of test pieces 13 BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 3 9.2.4 Impact test pieces . 13 9.3 Identification of samples and test pieces . 13 10 Test methods . 13 10.1 Chemical anal

18、ysis . 13 10.2 Mechanical tests 13 10.3 Ultrasonic testing 13 10.4 Retests 13 11 Marking, labelling, packaging 14 12 Complaints . 14 13 Options (see 5.2) 14 Annex A (informative) List of corresponding former designations 21 Annex B (informative) List of national standards which correspond with ECSC

19、IC 2 referenced 22 Annex C (informative) Minimum recommended inside bend radii for flanging . 23 Bibliography 24 BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 4 Foreword This document (EN 10025-6:2004+A1:2009) has been prepared by Technical Committee ECISS/TC 10 “Structural steels - Grades a

20、nd qualities”, 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 November 2009, and conflicting national standards shall be withdrawn at the latest by Novemb

21、er 2009. This document includes Amendment 1, approved by CEN on 2009-04-17. This document supersedes !EN 10025-6:2004“. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !deleted text“ The titles of the other parts of this document are: Part 1: Gen

22、eral technical delivery conditions; Part 2: Technical delivery conditions for non-alloy structural steels; Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels; Part 4: Technical delivery conditions for thermomechanical rolled weldable fine gra

23、in structural steels; Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance. This document has been prepared under Mandate M/120 given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements o

24、f the EU Construction Products Directive (89/106/EEC). For relationship with the EU Construction Products Directive, see informative Annex ZA of EN 10025-1:2004. 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, Bulgaria, 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 U

26、nited Kingdom. BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 5 1 Scope Part 6 of this document, in addition to part 1, specifies requirements for flat products of high yield strength alloy special steels. The grades and qualities are given in Tables 2 to 4 (chemical composition) and Tables 5

27、 to 7 (mechanical properties) and are supplied in the quenched and tempered condition as given in 6.3. The steels specified in this document are applicable to hot-rolled flat products with a minimum nominal thickness of 3 mm and a maximum nominal thickness 150 mm for grades S460, S500, S550, S620 an

28、d S690, a maximum nominal thickness 100 mm for grade S890 and a maximum nominal thickness 50 mm for grade S960, in steels which, after quenching and tempering, have a specified minimum yield strength of 460 MPa 1 ) to 960 MPa 1 ). 2 Normative references The following referenced documents are indispe

29、nsable 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. 2.1 General standards EN 1011-2, Welding Recommendations for welding of metallic materials Part

30、 2: Arc welding of ferritic steels. EN 10020, Definition and classification of grades of steel. EN 10025-1:2004, Hot rolled products of structural steels Part 1: General technical delivery conditions. EN 10027-1, Designation systems for steels Part 1: Steel names, principal symbols. EN 10027-2, Desi

31、gnation systems for steels Part 2: Numerical system. EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 1: General requirements. EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections P

32、art 2: Plates and wide flats. EN 10164, Steel products with improved deformation properties perpendicular to the surface of the product Technical delivery conditions. !deleted text“ 1 ) 1 MPa = 1 N/mm 2 . BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 6 2.2 Standards on dimensions and toleran

33、ces (see 7.7.1) EN 10029, Hot rolled steel plates 3 mm thick or above Tolerances on dimensions, shape and mass. EN 10048, Hot rolled narrow steel strip Tolerances on dimensions and shape. EN 10051, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels Tolerances on di

34、mensions and shape. EN 10162, Cold rolled steel sections Technical delivery conditions Dimensional and cross-sectional tolerances. 2.3 Standards on testing EN 10160, Ultrasonic testing of steel flat product of thickness equal to or greater than 6 mm (reflection method). 3 Terms and definitions For t

35、he purposes of this document, the terms and definitions given in EN 10025-1:2004 and the following apply. 3.1 quenching operation which consists of cooling a ferrous product more rapidly than in still air 3.2 tempering heat treatment applied to a ferrous product generally after quench hardening or o

36、ther heat treatment to bring the properties to the required level It consists of heating to specific temperatures ( A c1 ) and soaking one or more times followed by cooling at an appropriate rate. 4 Classification and designation 4.1 Classification 4.1.1 Main quality classes The steel grades specifi

37、ed in this document shall be classified as alloy special steels according to EN 10020. 4.1.2 Grades and qualities This document specifies seven steel grades. They differ in their minimum yield strength at ambient temperature. All the grades can be delivered in the following qualities as specified at

38、 the time of the enquiry and order: (no symbol) with specified minimum values of impact energy at temperatures not lower than -20 C; L with specified minimum values of impact energy at temperatures not lower than -40 C; BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 7 L1 with specified minimu

39、m values of impact energy at temperatures not lower than -60 C (with the exclusion of S960). 4.2 Designation 4.2.1 The designation shall be in accordance with EN 10025-1. NOTE For a list of corresponding former designations and the former designations from EN 10137-2:1995 see Annex A, Table A.1. 4.2

40、.2 The designation shall consist of: the number of this document (EN 10025-6); the steel name or the steel number; the steel name consisting of: the symbol S (for structural steel); the indication of the minimum specified yield strength for thickness 50 mm expressed in MPa 1 ); the delivery conditio

41、n Q; the capital letter L or L1 for the quality with specified minimum values of impact energy at temperatures not lower than -40 C or -60 C. EXAMPLE Structural steel (S) with a specified minimum yield strength at ambient temperature of 460 MPa 1 ), in the quenched and tempered delivery condition (Q

42、) and of quality L: Steel EN 10025-6 S460QL or Steel EN 10025-6 - 1.8906 5 Information to be supplied by the purchaser 5.1 Mandatory information The information that shall be supplied by the purchaser at the time of the order is specified in EN 10025-1. In addition to EN 10025-1 the following inform

43、ation shall be supplied by the purchaser at the time of the order: g) the type of inspection document (see 8.2). 5.2 Options A number of options are specified in Clause 13. In the event that the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in acco

44、rdance with the basic specification. 1) 1 MPa = 1 N/mm 2 . BS EN 10025-6:2004+A1:2009EN 10025-6:2004+A1:2009 (E) 8 6 Manufacturing process 6.1 Steel making process The steel making process shall be in accordance with EN 10025-1. If specified at the time of the order the steel making process shall be

45、 reported to the purchaser. See option 1. 6.2 Deoxidation or grain size The steels specified in this document shall be fully killed. The steels shall have a fine grain structure containing nitrogen binding elements in amounts sufficient to bind the nitrogen. 6.3 Delivery conditions The products shal

46、l be supplied in the quenched and tempered condition (Q) as defined in Clause 3. NOTE Direct quenching after hot-rolling followed by tempering is considered equivalent to conventional quenching and tempering. 7 Requirements 7.1 General The following requirements apply when sampling, preparation of t

47、est pieces and testing specified in Clauses 8, 9 and 10 are carried out. 7.2 Chemical composition 7.2.1 The chemical composition determined by ladle analysis shall comply with the specified values of Table 2. On special request of the purchaser the manufacturer shall inform the purchaser at the time

48、 of the enquiry and order which of the alloying elements appropriate to the steel grade required will be deliberately added to the material to be delivered. See option 29. 7.2.2 The limits applicable for the product analysis are given in Table 3. The manufacturer shall inform the purchaser at the time of the enquiry and order which of the alloying