EN 10270-1:2024
(Main)Steel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel wire
Steel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel wire
This document applies to patented cold drawn unalloyed steel wire of circular cross-section for the manufacture of mechanical springs for static duty and dynamic duty applications.
General technical delivery requirements can be found in EN 10021.
Stahldraht für Federn - Teil 1: Patentiert gezogener unlegierter Federstahldraht
Dieses Dokument ist anwendbar für patentiert gezogenen unlegierten Stahldraht mit rundem Querschnitt zur Herstellung von Federn für statische und dynamische Beanspruchungen.
Allgemeine technische Lieferbedingungen können EN 10021 entnommen werden.
Fils en acier pour ressorts mécaniques - Partie 1 : Fils pour ressorts en acier non allié, patentés, tréfilés à froid
Le présent document s’applique aux fils en acier non allié patentés et tréfilés à froid de section circulaire utilisés pour la fabrication de ressorts mécaniques pour les applications statiques et dynamiques.
Les exigences techniques générales de livraison se trouvent dans l’EN 10021.
Jeklena žica za vzmeti - 1. del: Patentirana hladno vlečena nelegirana jeklena žica za vzmeti
Ta dokument se uporablja za patentirano hladno vlečeno nelegirano jekleno žico s krožnim prečnim prerezom za
izdelavo mehanskih vzmeti za statično in dinamično uporabo.
Zahteve splošnih tehničnih dobavnih pogojev so navedene v standardu EN 10021.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2024
Jeklena žica za vzmeti - 1. del: Patentirana hladno vlečena nelegirana jeklena žica
za vzmeti
Steel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel
wire
Stahldraht für Federn - Teil 1: Patentiert gezogener unlegierter Federstahldraht
Fils en acier pour ressorts mécaniques - Partie 1 : Fils pour ressorts en acier non allié,
patentés, tréfilés à froid
Ta slovenski standard je istoveten z: EN 10270-1:2024
ICS:
77.140.25 Vzmetna jekla Spring steels
77.140.65 Jeklene žice, jeklene vrvi in Steel wire, wire ropes and
verige link chains
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 10270-1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2024
EUROPÄISCHE NORM
ICS 77.140.25 Supersedes EN 10270-1:2011+A1:2017
English Version
Steel wire for mechanical springs - Part 1: Patented cold
drawn unalloyed spring steel wire
Fils en acier pour ressorts mécaniques - Partie 1 : Fils Stahldraht für Federn - Teil 1: Patentiert gezogener
pour ressorts en acier non allié, patentés, tréfilés à unlegierter Federstahldraht
froid
This European Standard was approved by CEN on 4 September 2023.
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10270-1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Classification. 6
5 Information to be supplied by the purchaser . 6
6 Requirements . 7
6.1 Material . 7
6.1.1 General. 7
6.1.2 Chemical composition . 7
6.2 Form of delivery . 7
6.3 Coating and surface finish. 7
6.4 Mechanical properties . 7
6.5 Technological properties . 15
6.5.1 Coiling test . 15
6.5.2 Simple torsion test. 15
6.5.3 Wrapping test . 15
6.5.4 Simple bend test . 15
6.6 Supply conditions of wire on coils/reels and spools . 16
6.6.1 General. 16
6.6.2 Coil size . 16
6.6.3 Cast of wire . 16
6.6.4 Helix cast of wire . 16
6.6.5 Other tests for cast of wire . 17
6.7 Surface quality . 17
6.8 Dimensions and dimensional tolerances . 18
6.8.1 Dimensional tolerances . 18
6.8.2 Out of roundness . 20
7 Testing and inspection . 20
7.1 Inspection and inspection documents . 20
7.2 Extent of testing for specific inspection . 20
7.3 Sampling . 20
7.4 Test methods . 21
7.4.1 Chemical composition . 21
7.4.2 Tensile test . 21
7.4.3 Coiling test . 21
7.4.4 Wrapping test . 21
7.4.5 Simple torsion test. 21
7.4.6 Simple bend test . 21
7.4.7 Surface defects . 21
7.4.8 Decarburization . 22
7.4.9 Diameter . 22
7.4.10 Zinc and zinc/aluminium coating . 22
7.4.11 Adherence of coating . 22
7.5 Retests . 22
8 Marking and packaging . 22
Annex A (informative) Additional information . 26
A.1 Definition of surface condition of the wire . 26
A.2 Physical characteristics at room temperature . 27
A.3 Accuracy of measuring instruments . 27
A.4 Tensile strength formula . 27
A.5 Indication for the use of cold drawn spring steel wire . 28
Annex B (informative) Protection performance classes . 29
Bibliography . 30
European foreword
This document (EN 10270-1:2024) has been prepared by Technical Committee CEN/TC 459 “ECISS –
European Committee for Iron and Steel Standardization” , the secretariat of which is held by AFNOR.
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 August 2024 and conflicting national standards shall be
withdrawn at the latest by August 2024.
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 will supersede EN 10270-1:2017.
In comparison with the previous edition, the following technical modifications have been made:
— 3.1, added specific requirements for Dynamic duty (D);
— 6.7.3, added “Protection Performance class”.
EN 10270, Steel wire for mechanical springs is composed of the following parts:
— Part 1: Patented cold drawn unalloyed spring steel wire;
— Part 2: Oil hardened and tempered spring steel wire.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
Through its sub-committee SC 6 “Wire rod and wires” (secretariat: AFNOR).
1 Scope
This document applies to patented cold drawn unalloyed steel wire of circular cross-section for the
manufacture of mechanical springs for static duty and dynamic duty applications.
General technical delivery requirements can be found in EN 10021.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 10021, General technical delivery conditions for steel products
EN 10204, Metallic products - Types of inspection documents
EN 10218-1, Steel wire and wire products - General - Part 1: Test methods
EN 10218-2, Steel wire and wire products - General - Part 2: Wire dimensions and tolerances
EN 10244-2, Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 2: Zinc or zinc
alloy coatings
CEN/TR 10261, Iron and steel - European standards for the determination of chemical composition
EN ISO 377, Steel and steel products - Location and preparation of sampl
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.