SANS 50025-6-2009 Hot rolled products of structural steels Part 6 Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempe.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21933-8 SANS 50025-6:2009 Edition 1 EN 10025-6:2004 Edition 1SOUTH AFRICAN NATIONAL STANDARD Hot rolled products of structural steels Part

4、 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition This national standard is the identical implementation of EN 10025-6:2004 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by S

5、ABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 50025-6:2009 Edition 1 EN 10025-6:2004 Edition

6、 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1077, Engineering materials Ferrous metals, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS

7、document was published in April 2009. This standard may only be used and printed by approved subscription and freemailing clients of the SABS. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10025-6 November 2004 ICS 77.140.10; 77.140.50 Supersedes EN 10137-2:1995 English version Hot rolled pro

8、ducts 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 des aciers haute lim

9、ite 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. CEN members are bound to comply with the CEN/CENELE

10、C 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 obtained on application to the Central Secretariat or to any CEN

11、 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 Central Secretariat has the same status as the official versions. CEN me

12、mbers 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, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and U

13、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10025-6

14、:2004: EThis standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 2 Contents Page Foreword4 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 .

15、6 3 Terms and definitions .6 4 Classification and designation.6 4.1 Classification6 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 information7 5.2 Options .7 6 Manufacturing process .8 6.1 Steel making proc

16、ess8 6.2 Deoxidation or grain size 8 6.3 Delivery conditions8 7 Requirements.8 7.1 General8 7.2 Chemical composition 8 7.3 Mechanical properties.9 7.3.1 General9 7.3.2 Impact properties.9 7.3.3 Improved deformation properties perpendicular to the surface 9 7.4 Technological properties 9 7.4.1 Weldab

17、ility9 7.4.2 Formability10 7.4.3 Suitability for hot-dip zinc-coating.10 7.5 Surface properties .11 7.6 Internal soundness11 7.7 Tolerances on dimensions and shape, mass .11 8 Inspection .11 8.1 General11 8.2 Type of inspection and inspection document 11 8.3 Frequency of testing .11 8.3.1 Sampling.1

18、1 8.3.2 Test units12 8.3.3 Verification of chemical composition12 8.4 Tests to be carried out for specific inspection.12 9 Preparation of samples and test pieces12 9.1 Selection and preparation of samples for chemical analysis .12 9.2 Location and orientation of samples and test pieces for mechanica

19、l tests13 9.2.1 General13 9.2.2 Preparation of samples .13 9.2.3 Preparation of test pieces.13 This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 3 9.2.4 Impact test pieces .13 9.3 Identification of samples and test pieces .13

20、10 Test methods .13 10.1 Chemical analysis .13 10.2 Mechanical tests13 10.3 Ultrasonic testing 13 10.4 Retests14 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 stan

21、dards which correspond with ECSC IC 2 referenced 22 Annex C (informative) Minimum recommended inside bend radii for flanging.23 Bibliography24 This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 4 Foreword This document (EN 1002

22、5-6:2004) has been prepared by Technical Committee ECISS/TC 10 “Structural steels - Grades and qualities”, the secretariat of which is held by NEN. 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

23、May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. This document supersedes, together with EN 10025-1:2004, EN 10137-1:1995, Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions P

24、art 1: General delivery conditions and EN 10137-2:1995, Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions - Part 2: Delivery conditions for quenched and tempered steels. According to resolution ECISS/TC 10 Nr 2/1999

25、EN 10137-3:1995, Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions - Part 3: Delivery conditions for precipitation hardened steels is withdrawn because the steels from this document are hardly produced at this moment

26、. The titles of the other parts of this document are: Part 1: General 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 d

27、elivery conditions for thermomechanical rolled weldable fine grain 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 Europe

28、an Free Trade Association, and supports essential requirements of 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

29、organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Slovenia, Spa

30、in, Sweden, Switzerland and the United Kingdom. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 5 1 Scope Part 6 of this document, in addition to part 1, specifies requirements for flat products of high yield strength alloy

31、special steels. The grades and qualities are given in Tables 2 to 4 (chemical composition) and Tables 5 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 minimu

32、m nominal thickness of 3 mm and a maximum nominal thickness 150 mm for grades S460, S500, S550, S620 and 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 streng

33、th of 460 MPa 1 ) to 960 MPa 1 ). 2 Normative references The following referenced documents 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) a

34、pplies. 2.1 General standards EN 1011-2, Welding Recommendations for welding of metallic materials - Part 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 cond

35、itions. EN 10027-1, Designation systems for steels - Part 1: Steel names, principal symbols. EN 10027-2, Designation 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

36、. EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 2: Plates and wide flats. EN 10164, Steel products with improved deformation properties perpendicular to the surface of the product - Technical delivery conditions. CR 10260, Designatio

37、n systems for steels - Additional symbols. 1 ) 1 MPa = 1 N/mm 2 . This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 6 2.2 Standards on dimensions and tolerances (see 7.7.1) EN 10029, Hot rolled steel plates 3 mm thick or above

38、 - 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 dimensions and shape. EN 10162, Cold rolled steel sections - Tech

39、nical 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 the purposes of this document, the terms and definitions giv

40、en 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 other heat treatment to bring the properties to the required

41、 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 specified in this document shall be classified as alloy special st

42、eels 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 the time of the enquiry and order: (no symbol) with specif

43、ied 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; This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (E) 7 L1 with speci

44、fied minimum 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, Tab

45、le A.1. 4.2.2 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 delive

46、ry condition 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 c

47、ondition (Q) 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 follo

48、wing information 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 sup

49、ply in accordance with the basic specification. 1) 1 MPa = 1 N/mm 2 . This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-6:2004 (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 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