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SLOVENSKI STANDARD
01-marec-2023
Vroče valjani izdelki iz konstrukcijskih jekel - 4. del: Tehnični dobavni pogoji za
termomehansko obdelana valjana variva drobnozrnata konstrukcijska jekla
(vključno z dopolnilom A1)
Hot rolled products of structural steels - Part 4: Technical delivery conditions for
thermomechanical rolled weldable fine grain structural steels
Warmgewalzte Erzeugnisse aus Baustählen - Teil 4: Technische Lieferbedingungen für
thermomechanisch gewalzte schweißgeeignete Feinkornbaustähle
Produits laminés à chaud en aciers de construction - Partie 4 : Conditions techniques de
livraison pour les aciers de construction soudable à grains fins obtenus par laminage
thermomécanique
Ta slovenski standard je istoveten z: EN 10025-4:2019+A1:2022
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 10025-4:2019+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 77.140.10; 77.140.50 Supersedes EN 10025-4:2019
English Version
Hot rolled products of structural steels - Part 4: Technical
delivery conditions for thermomechanical rolled weldable
fine grain structural steels
Produits laminés à chaud en aciers de construction - Warmgewalzte Erzeugnisse aus Baustählen - Teil 4:
Partie 4 : Conditions techniques de livraison pour les Technische Lieferbedingungen für thermomechanisch
aciers de construction soudable à grains fins obtenus gewalzte schweißgeeignete Feinkornbaustähle
par laminage thermomécanique
This European Standard was approved by CEN on 16 June 2019 and includes Amendment 1 approved by CEN on 25 October
2022.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10025-4:2019+A1:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Classification and designation . 8
4.1 Classification . 8
4.1.1 Main quality classes . 8
4.1.2 Grades and qualities . 8
4.2 Designation . 9
5 Information to be supplied by the purchaser . 9
5.1 Mandatory information . 9
5.2 Options . 9
6 Manufacturing process . 9
6.1 Steel making process . 9
6.2 Deoxidation and grain structure . 10
6.3 Delivery conditions . 10
7 Requirements . 10
7.1 General . 10
7.2 Chemical composition . 10
7.3 Mechanical properties . 11
7.3.1 General . 11
7.3.2 Impact properties . 11
7.3.3 Improved deformation properties perpendicular to the surface . 11
7.4 Technological properties . 12
7.4.1 Weldability . 12
7.4.2 Formability and flame straightening . 12
7.4.3 Hot-dip zinc-coating . 13
7.5 Surface properties . 13
7.5.1 Strip . 13
7.5.2 Plates and wide flats . 13
7.5.3 Sections . 13
7.5.4 Bars and rods . 13
7.6 Internal soundness . 13
7.7 Dimensions, tolerances on dimensions and shape, mass . 14
8 Inspection . 14
8.1 Type of inspection and inspection document . 14
8.2 Content of inspection document . 14
8.3 Tests to be carried out . 15
9 Frequency of testing and preparation of samples and test pieces . 15
9.1 Frequency of testing. 15
9.1.1 Chemical analysis . 15
9.1.2 Mechanical tests . 15
9.2 Preparation of samples and test pieces . 15
9.2.1 Selection and preparation of samples for chemical analysis . 15
9.2.2 Location of samples and orientation of test pieces for mechanical tests . 16
9.2.3 Preparation of test pieces for mechanical tests . 16
9.3 Identification of samples and test pieces . 17
10 Test methods . 17
10.1 Chemical analysis . 17
10.2 Mechanical tests . 17
10.2.1 Tensile test . 17
10.2.2 Impact test . 17
10.3 Ultrasonic testing . 18
10.4 Retests . 18
11 Marking, labelling, packaging . 18
12 Complaints . 18
13 Options . 19
Annex A (normative) Location of samples and test pieces . 25
Annex B (informative) List of Options of EN 10025-2 to −6 . 28
Bibliography . 30
European foreword
This document (EN 10025-4:2019+A1:2022) has been prepared by Technical Committee
CEN/TC 459/SC 3 “Structural steels other than reinforcements”, the secretariat of which is held by DIN.
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 June 2023 and conflicting national standards shall be withdrawn at
the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes !EN 10025-4:2019".
This document includes Amendment 1 approved by CEN on 25 October 2022.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
This document consists of the following parts, under the general title Hot rolled products of structural steels:
— 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
— 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
For a short transition period
...