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    BS EN 10025-4-2004 Hot rolled products of structural steels - Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels《结构钢热轧制品 热机轧制的可焊接细粒结构钢的.pdf

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    BS EN 10025-4-2004 Hot rolled products of structural steels - Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels《结构钢热轧制品 热机轧制的可焊接细粒结构钢的.pdf

    1、BRITISH STANDARD BS EN 10025-4:2004 Hot rolled products of structural steels Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels The European Standard EN 10025-4:2004 has the status of a British Standard ICS 77.140.10; 77.140.50 BS EN 10025-4:2004

    2、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 44781 2 National foreword This British Standard is the official English language version of EN 10025-4:2004. BS EN 10025-4:2004 together with BS

    3、EN 10025-1:2004 and BS EN 10025-3:2004 supersedes BS EN 10113-1:1993, and BS EN 10025-4:2004 together with BS EN 10025-1:2004 supersedes BS EN 10113-3:1993, which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/12, Structural steels, which has the resp

    4、onsibility 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 entitled “I

    5、nternational 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 with

    6、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 internatio

    7、nal 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 was las

    8、t issued. Amendments issued since publication Amd. No. Date Comments 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 structural steels - Part 4: Technical delivery c

    9、onditions 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 thermomcanique Warmgewalzte Erzeugnisse aus Bausthlen

    10、- 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 conditions for giving this European Standard

    11、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 (English, French, Germ

    12、an). 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, Czech Republic, Den

    13、mark, 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 NORMALISATION EUR

    14、OPISCHES 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: EEN 10025-4:2004 (E) 2 Contents Page Foreword4 1 Scope 5 2 Normative references 5

    15、 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 to be supplied by

    16、 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 properties.9 7.3.3 Improved

    17、 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 .11 7.5.3 Sections 12 7.5.4 Bars and rods.12 7.6 Interna

    18、l 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 8.3 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 spec

    19、ific inspection.13 9 Preparation of samples and test pieces13 9.1 Selection and preparation of samples for chemical analysis .13 9.2 Location and orientation of samples and test pieces for mechanical tests14 9.2.1 General14 EN 10025-4:2004 (E) 3 9.2.2 Preparation of samples.14 9.2.3 Preparation of t

    20、est pieces.14 9.2.4 Impact test pieces14 9.3 Identification 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

    21、) List of corresponding former designations 22 Annex B (informative) List of national standards which correspond with EURONORMS referenced 23 Bibliography24 EN 10025-4:2004 (E) 4 Foreword This document (EN 10025-4:2004) has been prepared by Technical Committee ECISS/TC 10 “Structural steels - Grades

    22、 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 at the latest by May 2005.

    23、 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 steels - Part 3: Delivery conditions for thermomechan

    24、ical 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/normalized rolled weldable fine grain structural steels;

    25、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 prepared under Mandate M/120 giv

    26、en 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 10025-1:2004. According to the CEN/CE

    27、NELEC 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, Lithuania, Luxembourg, Malta, Net

    28、herlands, Norway, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 10025-4:2004 (E) 5 1 Scope Part 4 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 thermomechanic

    29、al rolled condition in the grades and qualities given in Tables 2 to 4 (chemical composition) and Tables 5 to 7 (mechanical properties) in thickness 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 inte

    30、nded for use in heavily loaded parts of welded structures such as, bridges, flood gates, storage 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 r

    31、eferences, 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 2: Arc welding of ferritic steels. EN 10020, Definiti

    32、on 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, Designation systems for steels - Part 2: Numerical sys

    33、tem. 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 Part 2: Plates and wide flats. EN 10163-3, Delive

    34、ry 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 conditions. EN 10221, Surface quality classes for hot-rolled bars

    35、 and rods - Technical delivery conditions. CR 10260, Designation systems for steels - Additional symbols. 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 f

    36、lange 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 - Tolerances on dimension

    37、s 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 10056-1, Structural stee

    38、l 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, Hot rolled square stee

    39、l 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 tolerances on shape and dimen

    40、sions. 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 dimensions. 2.3 Standards

    41、 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 steel bars. EN ISO 64

    42、3, 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 10025-4:2004 (E) 7 3.1 thermomechanical rolling rolling process in which the final

    43、 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 strength values. If temperatures above 580 C are needed reference should

    44、 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 quenching and tempering. NOTE 3 In some publications the word TMCP

    45、 (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 Classification 4.1.1 Main quality classes All steel grades specif

    46、ied 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 enquiry and order: w

    47、ith 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 designation shall be in accordance with EN 10025-1. NOTE For a list of

    48、 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 m

    49、inimum specified yield strength for thickness 16 mm expressed in MPa 1 ) ; 1 )1 MPa = 1 N/mm 2 . EN 10025-4:2004 (E) 8 delivery condition M; capital letter L for the quality with specified minimum values of impact energy at temperatures not lower than -50 C. EXAMPLE Thermomechanical rolled 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 C: Steel E


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