1、BRITISH STANDARD BS EN 10025-3:2004 Hot rolled products of structural steels Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels The European Standard EN 10025-3:2004 has the status of a British Standard ICS 77.140.10; 77.140.50 BS EN 10025-3:
2、2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 17 November 2004 BSI 17 November 2004 ISBN 0 580 44780 4 National foreword This British Standard is the official English language version of EN 10025-3:2004. BS EN 10025-3:2004 together wit
3、h BS EN 10025-1:2004 and BS EN 10025-4:2004 supersedes BS EN 10113-1:1993, and BS EN 10025-3:2004 together with BS EN 10025-1:2004 supersedes BS EN 10113-2:1993, which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/12, Structural steels, which has the
4、 responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitl
5、ed “International 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
6、with a British Standard 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 the UK interests informed; monitor related inter
7、national and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 24, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document wa
8、s last issued. Amendments issued since publication Amd. No. Date Comments 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 of structural steels - Part 3: Technical deliv
9、ery 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/laminage normalis Warmgewalzte Erzeugnisse aus Baus
10、thlen - 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 which stipulate the conditions for giving this
11、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 three official versions (Eng
12、lish, 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 Austria, Belgium, Cyprus, C
13、zech 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 STANDARDIZATION COMIT EUROPEN DE
14、 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: EEN 10025-3:2004 (E) 2 Contents Page Foreword4 1 Scope 5 2 Norm
15、ative 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 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
16、 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 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 propertie
17、s.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-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 r
18、ods.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 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 c
19、arried out for specific inspection.13 9 Preparation of samples and test pieces14 9.1 Selection and preparation of samples for chemical analysis .14 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
20、 9.2.3 Preparation of test pieces.14 9.2.4 Impact 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
21、.2)15 Annex A (informative) List of corresponding former designations 22 Annex B (informative) List of national standards which correspond with EURONORMS referenced 23 Bibliography24 EN 10025-3:2004 (E) 4 Foreword This document (EN 10025-3:2004) has been prepared by Technical Committee ECISS/TC 10 “
22、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 standards shall be withdrawn
23、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 weldable fine grain structural steels - Part 2: Delivery c
24、onditions 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 delivery conditions for thermomechanical rolled weldable fine
25、 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. This document has been prepar
26、ed 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 informative Annex ZA of EN 10025-1:200
27、4. 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, Ireland, Italy, Latvia, Lithuan
28、ia, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 10025-3:2004 (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 st
29、eels in the normalized/normalized rolled delivery condition in the grades and qualities given in Tables 2 to 4 (chemical composition) and Tables 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 th
30、e steels specified in this document are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storages tanks, water supply tanks, etc., for service at ambient and low temperatures. 2 Normative references The following referenced documents are indispe
31、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 - Pa
32、rt 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
33、, 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. EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and se
34、ctions 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 improved deformation properties perpendicular to the surface of the product - Technical delivery condition
35、s. EN 10221, Surface quality classes for hot-rolled bars and rods - Technical delivery conditions. CR 10260, Designation systems for steels - Additional symbols. 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
36、 Dimensions and tolerances. EN 10024, 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,
37、 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 10055, Hot-rolled steel equal flange tees with radiused root and toes - Dimensions and toleran
38、ces on shape and dimensions. EN 10056-1, 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 o
39、n shape and dimensions. EN 10059, Hot 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
40、 purposes - Dimensions and tolerances 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 chan
41、nels - Tolerances on shape and dimensions. 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-destructi
42、ve testing - Ultrasonic testing of 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. EN 10025-3:2004 (E) 7 3.1 nor
43、malizing 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 mechanical properties are retained even after normalizing NOTE In internatio
44、nal 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 is necessary. 3.2 fine grained steels steels with fine grain structu
45、re 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 shall be classified as non-alloy quality steels and the steel grades
46、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 supplied in the following qualities as specified at the time of the
47、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 Designation 4.2.1 The designation shall be in accordance with EN 10025-1
48、. 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);
49、 indication of the minimum specified yield strength for thickness 16 mm expressed in MPa 1) ; 1) 1 MPa = 1 N/mm 2 . EN 10025-3:2004 (E) 8 delivery condition N; capital letter L for the quality with specified minimum values of impact energy at temperatures not lower than -50 C. EXAMPLE Normalized structural steel (S) with a specified minimum yield strength at ambient temperature of 355 MPa 1) , and with a specified minimum value of impact energy at -50
