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EUROPEAN STANDARD
EN 10025-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
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
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EN 10025-3:2004 (E)
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
2
EN 10025-3:2004 (E)
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
3
EN 10025-3:2004 (E)
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.
4
EN 10025-3:2004 (E)
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.
5

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