SANS 50025-4-2009 Hot rolled products of structural steels Part 4 Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels《热轧结构钢产品 第4部分 热机械轧制.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 978-0-626-21931-4 SANS 50025-4:2009 Edition 1 EN 10025-4:2004 Edition 1SOUTH AFRICAN NATIONAL STANDARD Hot rolled products of structural steels Part

4、 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels This national standard is the identical implementation of EN 10025-4:2004 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Late

5、gan 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 50025-4:2009 Edition 1 EN 10025-4:2004 Edition 1 Table of changes Change No. D

6、ate 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 document was published in March

7、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 10025-4 November 2004 ICS 77.140.10; 77.140.50 Supersedes EN 10113-1:1993, EN 10113-3:1993 English version Hot rolled products of struct

8、ural steels - Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels Produits lamins chaud en aciers de construction - Partie 4: Conditions techniques de livraison pour les aciers de construction soudables grains fins obtenus par laminage thermomcaniq

9、ue Warmgewalzte Erzeugnisse aus Bausthlen - Teil 4: Technische Lieferbedingungen fr thermomechanisch gewalzte schweigeeignete Feinkornbausthle This European Standard was approved by CEN on 1 April 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con

10、ditions 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 Standard exists in thre

11、e 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 standards bodies of Aus

12、tria, 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARD

13、IZATION 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 10025-4:2004: EThis standard may only be used and pri

14、nted by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (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 .6 3 Terms and definitions .6 4 Classification

15、and designation.7 4.1 Classification7 4.1.1 Main quality classes 7 4.1.2 Grades and qualities .7 4.2 Designation 7 5 Information to be supplied by the purchaser .8 5.1 Mandatory information8 5.2 Options .8 6 Manufacturing process .8 6.1 Steel making process8 6.2 Grain structure.8 6.3 Delivery condit

16、ions8 7 Requirements.9 7.1 General9 7.2 Chemical composition 9 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 10 7.4 Technological properties 10 7.4.1 Weldability10 7.4.2 Formability10 7.4.3 Suitability for hot-

17、dip zinc-coating.11 7.5 Surface properties .11 7.5.1 Strip.11 7.5.2 Plates and wide flats .11 7.5.3 Sections 12 7.5.4 Bars and rods.12 7.6 Internal soundness12 7.7 Dimensions, tolerances on dimensions and shape, mass12 8 Inspection.12 8.1 General12 8.2 Type of inspection and inspection document 12 8

18、.3 Frequency of testing .13 8.3.1 Sampling.13 8.3.2 Test units13 8.3.3 Verification of chemical composition13 8.4 Tests to be carried out for specific inspection.13 9 Preparation of samples and test pieces13 9.1 Selection and preparation of samples for chemical analysis .13 9.2 Location and orientat

19、ion of samples and test pieces for mechanical tests14 9.2.1 General14 This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (E) 3 9.2.2 Preparation of samples.14 9.2.3 Preparation of test pieces.14 9.2.4 Impact test pieces14 9.3 Ident

20、ification of samples and test pieces .14 10 Test methods .14 10.1 Chemical analysis14 10.2 Mechanical tests 14 10.3 Ultrasonic testing 14 10.4 Retests14 11 Marking, labelling, packaging 15 12 Complaints .15 13 Options (see 5.2)15 Annex A (informative) List of corresponding former designations 22 Ann

21、ex B (informative) List of national standards which correspond with EURONORMS referenced 23 Bibliography24 This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (E) 4 Foreword This document (EN 10025-4:2004) has been prepared by Techn

22、ical 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 May 2005, and conflicting national s

23、tandards shall be withdrawn at the latest by May 2005. This document supersedes together with EN 10025-1:2004, EN 10113-1:1993, Hot-rolled products in weldable fine grain structural steels - Part 1: General delivery conditions and EN 10113-3:1993 Hot-rolled products in weldable fine grain structural

24、 steels - Part 3: Delivery conditions for thermomechanical rolled steels. 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/nor

25、malized rolled weldable fine grain structural steels; Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance; Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition. T

26、his 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 of the EU Construction Products Directive (89/106/EEC). For relationship with the EU Construction Products Directive, see informativ

27、e 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 this European Standard: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ire

28、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (E) 5 1 Scope Part 4 of thi

29、s document, in addition to Part 1, specifies requirements for flat and long products of hot rolled weldable fine grain structural steels in the thermomechanical rolled condition in the grades and qualities given in Tables 2 to 4 (chemical composition) and Tables 5 to 7 (mechanical properties) in thi

30、ckness 120 mm for flat products and in thickness 150 mm for long products. In addition to EN 10025-1 the steels specified in this document are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storage tanks, water supply tanks, etc., for service

31、at ambient and low temperatures. 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) ap

32、plies. 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 condi

33、tions. 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.

34、 EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 2: Plates and wide flats. EN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 3: Sections. EN 10164, Steel products with impr

35、oved deformation properties perpendicular to the surface of the product - Technical delivery conditions. EN 10221, Surface quality classes for hot-rolled bars and rods - Technical delivery conditions. CR 10260, Designation systems for steels - Additional symbols. This standard may only be used and p

36、rinted by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (E) 6 2.2 Standards on dimensions and tolerances (see 7.7.1) EN 10017, Non-alloy steel rod for drawing and/or cold rolling Dimensions and tolerances. EN 10024, Hot rolled taper flange I sections - Tolerances on shape

37、 and dimensions. EN 10029, Hot rolled steel plates 3 mm thick or above - Tolerances on dimensions, shape and mass. EN 10034, Structural steel I and H sections - Tolerances on shape and dimensions. EN 10048, Hot rolled narrow steel strip - Tolerances on dimensions and shape. EN 10051, Continuously ho

38、t-rolled uncoated plate, sheet and strip of non-alloy and alloy steels - Tolerances on dimensions and shape. EN 10055, Hot-rolled steel equal flange tees with radiused root and toes - Dimensions and tolerances on shape and dimensions. EN 10056-1, Structural steel equal and unequal leg angles - Part

39、1: Dimensions. EN 10056-2, Structural steel equal and unequal leg angles - Part 2: Tolerances on shape and dimensions. EN 10058, Hot rolled flat steel bars for general purposes - Dimensions and tolerances on shape and dimensions. EN 10059, Hot rolled square steel bars for general purposes - Dimensio

40、ns and tolerances on shape and dimensions. EN 10060, Hot rolled round steel bars for general purposes - Dimensions and tolerances on shape and dimensions. EN 10061, Hot rolled hexagon steel bars for general purposes - Dimensions and tolerances on shape and dimensions. EN 10067, Hot rolled bulb flats

41、 - Dimensions and tolerances on shape, dimensions and mass. EN 10162, Cold rolled steel sections - Technical delivery conditions - Dimensional and cross-sectional tolerances. EN 10279, Hot rolled steel channels - Tolerances on shape and dimensions. 2.3 Standards on testing EN 10160, Ultrasonic testi

42、ng of steel flat product of thickness equal to or greater than 6 mm (reflection method). EN 10306, Iron and steel - Ultrasonic testing of H beams with parallel flanges and IPE beams. EN 10308, Non-destructive testing - Ultrasonic testing of steel bars. EN ISO 643, Steels Micrographic determination o

43、f the apparent grain size (ISO 643:2003). 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10025-1:2004 and the following apply. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-4:2004 (E)

44、 7 3.1 thermomechanical rolling rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition with certain properties which cannot be achieved or repeated by heat treatment alone NOTE 1 Subsequent heating above 580 C may lower the streng

45、th values. If temperatures above 580 C are needed reference should be made to the supplier. NOTE 2 Thermomechanical rolling leading to the delivery condition M can include processes with an increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and

46、quenching and tempering. NOTE 3 In some publications the word TMCP (Thermomechanical Control Process) is also used. 3.2 fine grained steels steels with fine grain structure with an equivalent index of ferritic grain size 6 determined in accordance with EN ISO 643 4 Classification and designation 4.1

47、 Classification 4.1.1 Main quality classes All steel grades specified in this document shall be classified as alloy special steels according to EN 10020. 4.1.2 Grades and qualities This document specifies four steel grades S275, S355, S420 and S460. All the steel grades may be supplied in the follow

48、ing qualities as specified at the time of the enquiry and order: with specified minimum values of impact energy at temperatures not lower than -20 C, designated as M; with specified minimum values of impact energy at temperatures not lower than -50 C, designated as ML. 4.2 Designation 4.2.1 The desi

49、gnation shall be in accordance with EN 10025-1. NOTE For a list of corresponding former designations and the former designations from EN 10113-3:1993 see Annex A, Table A.1. 4.2.2 The designation shall consist of: number of this document (EN 10025-4); steel name or the steel number; the steel name consisting of: symbol S (for structural steel); indication of the minimum specified yield strength for thickness 16 mm expressed in MPa 1 ) ; 1 )1 MPa = 1 N/mm 2 . This standard may only be used and printed by approved subscription and free