SIST EN 10025-3:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steelsProduits laminés a chaud en aciers de construction - Partie 3: Conditions techniques de livraison pour les aciers de construction soudables a grains fins a l'état normalisé/laminage normaliséWarmgewalzte Erzeugnisse aus Baustählen - Teil 3: Technische Lieferbedingungen für normalgeglühte/normalisierend gewalzte schweißgeeignete Feinkornbaustähle77.140.50SROL]GHONLFlat steel products and semi-products77.140.10Jekla za toplotno obdelavoHeat-treatable steelsICS:SIST EN 10025-3:2004enTa slovenski standard je istoveten z:EN 10025-3:200401-december-2004SIST EN 10025-3:2004SLOVENSKI
STANDARDSIST EN 10113-1:19971DGRPHãþD







EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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 delivery conditions for normalized/normalized rolled weldable fine grain structural steels
Produits laminés à chaud en aciers de construction -Partie 3: Conditions techniques de livraison pour les aciers de construction soudables à grains fins à l'état normalisé/laminage normalisé
Warmgewalzte Erzeugnisse aus Baustählen - Teil 3: Technische Lieferbedingungen für normalgeglühte/normalisierend gewalzte schweißgeeignete Feinkornbaustähle 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 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, 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, 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 STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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: E



EN 10025-3:2004 (E) 2 Contents Page Foreword.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.6 3 Terms and definitions.6 4 Classification and designation.7 4.1 Classification.7 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 information.8 5.2 Options.8 6 Manufacturing process.8 6.1 Steel making process.8 6.2 Grain structure.8 6.3 Delivery conditions.8 7 Requirements.9 7.1 General.9 7.2 Chemical composition.9 7.3 Mechanical properties.9 7.3.1 General.9 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 Weldability.10 7.4.2 Formability.10 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 rods.12 7.6 Internal soundness.12 7.7 Dimensions, tolerances on dimensions and shape, mass.12 8 Inspection.12 8.1 General.12 8.2 Type of inspection and inspection document.13 8.3 Frequency of testing.13 8.3.1 Sampling.13 8.3.2 Test units.13 8.3.3 Verification of chemical composition.13 8.4 Tests to be carried out for specific inspection.13 9 Preparation of samples and test pieces.14 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 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 tests.14 10.3 Ultrasonic testing.14 10.4 Retests.14 11 Marking, labelling, packaging.15 12 Complaints.15 13 Options (see 5.2).15 Annex A (informative)
List of corresponding former designations.22 Annex B (informative)
List of national standards which correspond with EURONORMS referenced.23 Bibliography.24



EN 10025-3:2004 (E) 4 Foreword This document (EN 10025-3:2004) 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 2005, 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 weldable 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 delivery 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 quenched 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 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 implement 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 10025-3:2004 (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 steels 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 the 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 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) 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 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 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, 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 conditions. 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 – 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, 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 tolerances 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 on 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 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 channels - 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-destructive 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 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 mechanical 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 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 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 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 Designation 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 MPa1);
1) 1 MPa = 1 N/mm2.



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 MPa1), and with a specified minimum value of impact energy at -50 ºC:
Steel EN 10025-3 - S355NL
or
Steel EN 10025-3 - 1.0546 5 Information to be supplied by the purchaser 5.1 Mandatory information The information that shall be supplied by the purchaser at the time of the order is specified in EN 10025-1. In addition to EN 10025-1 the following information shall be supplied by the purchaser at the time of the order: g) the type of inspection document (see 8.2). 5.2 Options A number of options are specified in Clause 13. In the event that the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification. 6 Manufacturing process 6.1 Steel making process The steel making process shall be in accordance with EN 10025-1. If specified at the time of the order the steel making process shall be reported to the purchaser. See option 1. 6.2 Grain structure The steels shall have a fine grain structure containing sufficient amounts of nitrogen binding elements (see
Table 2). 6.3 Delivery conditions The products shal
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