1、BRITISH STANDARD BS EN 10025-2:2004 Hot rolled products of structural steels Part 2: Technical delivery conditions for non-alloy structural steels The European Standard EN 10025-2:2004 has the status of a British Standard ICS 77.140.10; 77.140.45; 77.140.50 BS EN 10025-2:2004 This British Standard w
2、as published under the authority of the Standards Policy and Strategy Committee on 17 November 2004 BSI 17 November 2004 ISBN 0 580 44779 0 National foreword This British Standard is the official English language version of EN 10025-2:2004. BS EN 10025-2:2004 together with BS EN 10025-1:2004 superse
3、des BS EN 10025:199 3, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/12, Structural steels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The
4、British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards
5、 Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the resp
6、onsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front co
7、ver, the EN title page, pages 2 to 34, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10025-2 Novem
8、ber 2004 ICS 77.140.10; 77.140.45; 77.140.50 Supersedes EN 10025:1990 English version Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels Produits lamins chaud en aciers de construction - Partie 2: Conditions techniques de livraison pour l
9、es aciers de construction non allis Warmgewalzte Erzeugnisse aus Bausthlen - Teil 2: Technische Lieferbedingungen fr unlegierte Bausthle 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 condition
10、s 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 three offi
11、cial 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 Austria,
12、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 STANDARDIZATIO
13、N 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 10025-2:2004: EEN 10025-2:2004 (E) 2 Contents Page Foreword
14、4 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 .7 3 Terms and definitions .7 4 Classification and designation.7 4.1 Classification7 4.1.1 Main quality classes 7 4.1.2 Grades and qualities .8 4.2 Designati
15、on 8 5 Information to be supplied by the purchaser .8 5.1 Mandatory information8 5.2 Options .9 6 Manufacturing process .9 6.1 Steel making process9 6.2 Deoxidation 9 6.3 Delivery conditions9 7 Requirements.10 7.1 General10 7.2 Chemical composition 10 7.3 Mechanical properties.10 7.3.1 General10 7.3
16、.2 Impact properties.11 7.3.3 Improved deformation properties perpendicular to the surface 11 7.4 Technological properties 11 7.4.1 Weldability11 7.4.2 Formability11 7.4.3 Suitability for hot-dip zinc-coating.12 7.4.4 Machinability 13 7.5 Surface properties .13 7.5.1 Strip.13 7.5.2 Plates and wide f
17、lats .13 7.5.3 Sections 13 7.5.4 Bars and rods.13 7.6 Internal soundness13 7.7 Dimensions, tolerances on dimensions and shape, mass14 8 Inspection .14 8.1 General14 8.2 Type of inspection and inspection document 14 8.3 Frequency of testing .14 8.3.1 Sampling.14 8.3.2 Test units14 8.3.3 Verification
18、of chemical composition15 8.4 Tests to be carried out for specific inspection.15 9 Preparation of samples and test pieces15 EN 10025-2:2004 (E) 3 9.1 Selection and preparation of samples for chemical analysis.15 9.2 Location and orientation of samples and test pieces for mechanical tests .15 9.2.1 G
19、eneral .15 9.2.2 Preparation of samples.16 9.2.3 Preparation of test pieces.16 9.3 Identification of samples and test pieces .16 10 Test methods .16 10.1 Chemical analysis .16 10.2 Mechanical tests16 10.3 Ultrasonic testing 16 10.4 Retests16 11 Marking, labelling, packaging 16 12 Complaints .16 13 O
20、ptions (see 5.2)17 Annex A (informative) List of corresponding former designations 32 Annex B (informative) List of national standards which correspond with EURONORMS referenced 33 Bibliography34 EN 10025-2:2004 (E) 4 Foreword This document (EN 10025-2:2004) has been prepared by Technical Committee
21、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 standards shall
22、be withdrawn at the latest by May 2005. This document supersedes EN 10025:1990 + A1:1993, Hot rolled products of non-alloy structural steels - Technical delivery conditions. The titles of the other Parts of this European Standard are: Part 1: General technical delivery conditions; Part 3: Technical
23、delivery conditions for normalized/normalized rolled weldable fine grain structural steels; Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels; Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resista
24、nce; 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 a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requir
25、ements 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 organizations of the following countries are bound to im
26、plement 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, Spain, Sweden, Switzerland and the United Kingdom. EN 10025
27、-2:2004 (E) 5 1 Scope Part 2 of this document, in addition to Part 1, specifies the technical delivery conditions for flat and long products and semi-finished products which are meant for further processing to flat and long products of hot rolled non-alloy quality steels in the grades and qualities
28、given in Tables 2 to 6 (chemical composition) and Tables 7 to 9 (mechanical properties) in the delivery conditions as given in 6.3. Three engineering steels are also specified in this document (see Tables 3 and 5) (chemical composition) and Table 8 (mechanical properties). This document does not app
29、ly to structural hollow sections and tubes (see EN 10210-1 and EN 10219-1). The technical delivery conditions apply to thicknesses 3 mm and 150 mm for long products of steel grade S450J0. The technical delivery conditions apply to thicknesses 250 mm for flat and long products of all other grades and
30、 qualities. In addition for flat products of qualities J2 and K2 the technical conditions apply to thicknesses 400 mm. Products made of steel grades S185, E295, E335 and E360 cannot be CE marked. The steels specified in this Part 2 are not intended to be heat treated except products delivered in del
31、ivery condition +N. Stress relief annealing is permitted (see also the NOTE in 7.3.1.1 of EN 10025-1:2004). Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3). NOTE 1 Semi-finished products which are to be converted to rolled finished products confor
32、ming to this document should be the subject of special agreement at the time of the enquiry and order. The chemical composition can also be agreed at the time of the order, however the values should be within the limits of Tables 2 and 3. NOTE 2 For certain grades and product forms suitability for p
33、articular applications may be specified at the time of the enquiry and order (see 7.4.2, 7.4.3 and Table 10). 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
34、, 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, Definition and classification of grades of steel. EN 10025-1:2004, Hot ro
35、lled 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 system. EN 10163-1, Delivery requirements for surface condition of h
36、ot-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, Delivery requirements for surface condition of hot-rolled steel plates,
37、 wide flats and sections Part 3: Sections. EN 10025-2:2004 (E) 6 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.
38、CR 10260, Designation systems for steels - Additional symbols. 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 and dimensions. EN 10029,
39、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 hot-rolled uncoated plate, sh
40、eet 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 1: Dimensions. EN 10056-2,
41、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 - Dimensions and tolerances on shape
42、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 - Dimensions and tolerance
43、s 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. EN 10025-2:2004 (E) 7 2.3 Standards on testing EN 10160, Ultrasonic testing of
44、 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 of the
45、 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. 3.1 normalizing rolling rolling process in which the final deformation is carried out in a certain temperature range leading to
46、a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing The abbreviated form of this delivery condition is +N NOTE In international publications for both the normalizing rolling, as well as the t
47、hermo-mechanical 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 as-rolled delivery condition without any special rolling and/or heat treatment condition. The abbreviated form of th
48、is delivery condition is +AR 3.3 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
49、580 C may lower the strength 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 quenching and tempering. NOTE 3 In some publications the word TMCP (Thermomechanical Control Process) is also used. 4 Classification and designation 4.1 Cla
