SANS 50025-3-2009 Hot rolled products of structural steels Part 3 Technical delivery conditions for normalized normalized rolled weldable fine grain structural steels《热轧结构钢产品 第3部分 .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 978-0-626-21930-7 SANS 50025-3:2009 Edition 1 EN 10025-3:2004 Edition 1SOUTH AFRICAN NATIONAL STANDARD Hot rolled products of structural steels Part

4、 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels This national standard is the identical implementation of EN 10025-3:2004 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr

5、 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 50025-3:2009 Edition 1 EN 10025-3:2004 Edition 1 Table of changes Change

6、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 document was published in F

7、ebruary 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 10025-3 November 2004 ICS 77.140.10; 77.140.50 Supersedes EN 10113-1:1993, EN 10113-2:1993 English version Hot rolled products o

8、f structural steels - Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels Produits lamins chaud en aciers de construction - Partie 3: Conditions techniques de livraison pour les aciers de construction soudables grains fins ltat normalis/lamina

9、ge normalis Warmgewalzte Erzeugnisse aus Bausthlen - Teil 3: Technische Lieferbedingungen fr normalgeglhte/normalisierend 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 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN C

13、OMMITTEE 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 10025-3:2004: EThis standard may

14、 only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-3:2004 (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

15、 .6 4 Classification 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.

16、8 6.3 Delivery conditions8 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

17、 Suitability for hot-dip zinc-coating.11 7.5 Surface properties .11 7.5.1 Strip.11 7.5.2 Plates and wide flats .12 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 in

18、spection document 13 8.3 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 pieces14 9.1 Selection and preparation of samples for chemical analysis .14 Thi

19、s standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-3:2004 (E) 3 9.2 Location and orientation of samples and test pieces for mechanical tests .14 9.2.1 General .14 9.2.2 Preparation of samples.14 9.2.3 Preparation of test pieces.14 9.2.4 Impa

20、ct test pieces .14 9.3 Identification of samples and test pieces .14 10 Test methods .14 10.1 Chemical analysis .14 10.2 Mechanical tests14 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 correspondi

21、ng former designations 22 Annex 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 10025-3:2004 (E) 4 Foreword This document (EN 10025-3:200

22、4) 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 May 200

23、5, and conflicting national standards 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 10113-2:1993 Hot-rolled products in w

24、eldable fine grain structural steels - Part 2: Delivery conditions for normalized/normalized 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 4: Technical deli

25、very conditions for thermomechanical 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 quenc

26、hed and tempered condition. 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 of the EU Construction Products Directive (89/106/EEC). For relationship with the EU Construction Produ

27、cts 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 this European Standard: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany,

28、Greece, Hungary, Iceland, Ireland, 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 10025-3:200

29、4 (E) 5 1 Scope Part 3 of this document, in addition to part 1, specifies requirements for flat and long products of hot rolled weldable fine grain structural steels in the normalized/normalized rolled delivery condition in the grades and qualities given in Tables 2 to 4 (chemical composition) and T

30、ables 5 to 7 (mechanical properties) in thickness 250 mm for grades S275, S355 and S420 and in thickness 200 mm for grade S460. In addition to EN 10025-1:2004 the steels specified in this document are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood ga

31、tes, storages tanks, water supply tanks, etc., for service 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 editi

32、on of the referenced document (including any amendments) applies. 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 s

33、tructural steels - Part 1: General technical delivery conditions. 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 pl

34、ates, 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 Part 2: Plates and wide flats. EN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and se

35、ctions Part 3: Sections. EN 10164, Steel products with improved 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

36、 - Additional symbols. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 10025-3:2004 (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 1002

37、4, Hot rolled taper flange I sections - Tolerances on shape 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 - To

38、lerances 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 10055, Hot-rolled steel equal flange tees with radiused root and toes - Dimensions and tolerances on shape and dimensions. EN 100

39、56-1, Structural steel equal and unequal leg angles - Part 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, H

40、ot rolled square steel bars for general purposes - Dimensions 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 toleranc

41、es on shape and dimensions. EN 10067, Hot rolled bulb flats - 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 dime

42、nsions. 2.3 Standards on testing EN 10160, Ultrasonic testing 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

43、steel bars. EN ISO 643, Steels Micrographic determination of 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 subscript

44、ion and freemailing clients of the SABS.EN 10025-3:2004 (E) 7 3.1 normalizing rolling rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechani

45、cal properties are retained even after normalizing NOTE In international publications for both the normalizing rolling, as well as the thermomechanical rolling, the expression “controlled rolling“ may be found. However in view of the different applicability of the products a distinction of the terms

46、 is necessary. 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 Classification 4.1.1 Main quality classes The steel grades S275 and S355 specified in this document

47、shall be classified as non-alloy quality steels and the steel grades S420 and S460 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

48、 supplied in the following 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 N; with specified minimum values of impact energy at temperatures not lower than -50 C, designated as NL. 4.2 Des

49、ignation 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 10113-2:1993 see Annex A, Table A.1. 4.2.2 The designation shall consist of: number of this document (EN 10025-3); 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 appr