EN 10270-2:2011

Steel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire

1.1   This European Standard applies to oil hardened and tempered spring steel wire made from unalloyed or alloyed steels. They are primarily subject to torsional stresses such as in coil springs for compression and extension and in special cases also for applications where the spring wire is subject to bending stresses such as lever springs.
As a rule unalloyed steels are used for applications at room temperature whereas alloyed steels are generally used at a temperature above room temperature. Alloyed steels may also be chosen for above average tensile strengths.
1.2   In addition to this European Standard, the general technical delivery requirements of EN 10021 are applicable.

Stahldraht für Federn - Teil 2: Ölschlussvergüteter Federstahldraht

1.1 Diese Europäische Norm gilt für ölschlussvergüteten Federstahldraht aus unlegierten oder legierten Stählen. Er wird vorwiegend auf Torsion beansprucht wie z. B. bei Schraubenfedern und in Sonderfällen auch für Anwendungen, bei denen der Federdraht auf Biegung beansprucht wird wie z. B. bei Schenkelfedern.
In der Regel werden unlegierte Stähle bei Raumtemperatur eingesetzt, während legierte Stähle im Allgemeinen bei Temperaturen oberhalb Raumtemperatur verwendet werden. Legierte Stähle können auch wegen überdurchschnittlicher Zugfestigkeit ausgewählt werden.
1.2 Zusätzlich zu dieser Europäischen Norm gelten die allgemeinen technischen Lieferbedingungen nach EN 10021.

Fils en acier pour ressorts mécaniques - Partie 2: Fils en acier trempés à l’huile et revenus

1.1 Cette norme européenne s’applique aux fils pour ressorts trempés à l’huile et revenus réalisés en aciers non alliés ou en aciers alliés. Les fils sont d’abord soumis à des contraintes de torsion comme c’est le cas pour les ressorts de compression et de traction et, dans certains cas particuliers, pour des applications où les fils pour ressorts sont soumis à des efforts de pliage, tels que les ressorts de forme.
En règle générale, les aciers non alliés sont utilisés pour des applications à température ambiante, alors que les aciers alliés sont généralement utilisés à une température plus élevée que la température ambiante. Les aciers alliés peuvent être également sélectionnés pour leur résistance à la traction plus élevée que la moyenne.
1.2 Les conditions générales techniques de livraison données dans l’EN 10021 s’ajoutent aux dispositions de cette présente norme européenne.

Jeklena žica za vzmeti - 2. del: V olju kaljena in popuščena jeklena žica za vzmeti

Ta evropski standard velja za v olju kaljeno in popuščeno jekleno žico za vzmeti, narejeno iz nelegiranega ali legiranega jekla. Nanje delujejo predvsem torzijske obremenitve, kot so v povratnih vzmeteh za stiskanje in raztegovanje in v posebnih primerih tudi za uporabe, pri katerih na žico vzmeti delujejo upogibne obremenitve, kot so vzvodne vzmeti. Praviloma se nelegirana jekla uporabljajo pri sobni temperaturi, legirana jekla pa se v splošnem uporabljajo pri temperaturah, višjih od sobne temperature. Legirana jekla se lahko izberejo tudi pri nadpovprečnih nateznih trdnostih. Poleg tega evropskega standarda veljajo splošne tehnične dobavne zahteve EN 10021.

General Information

• Status: Published
• Publication Date: 25-Oct-2011
• Withdrawal Date: 29-Apr-2012
• ICS: 77.140.25 - Spring steels
• ICS: 77.140.65 - Steel wire, wire ropes and link chains
• Technical Committee: ECISS/TC 106 - Wire rod and wires
• Drafting Committee: ECISS/TC 106 - Wire rod and wires
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 03-Dec-2021
• Ref Project: SIST EN 10270-2:2012 - Steel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire

Relations

• Replaces: EN 10270-2:2001 - Steel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire
• Effective Date: 13-Feb-2013

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stahldraht für Federn - Teil 2: Ölschlussvergüteter FederstahldrahtFils en acier pour ressorts mécaniques - Partie 2: Fils en acier trempés à l'huile et revenusSteel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire77.140.65Jeklene žice, jeklene vrvi in verigeSteel wire, wire ropes and link chains77.140.25Vzmetna jeklaSpring steelsICS:Ta slovenski standard je istoveten z:EN 10270-2:2011SIST EN 10270-2:2012en01-januar-2012SIST EN 10270-2:2012SLOVENSKI
STANDARDSIST EN 10270-2:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10270-2
October 2011 ICS 77.140.25 Supersedes EN 10270-2:2001English Version
Steel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire
Fils en acier pour ressorts mécaniques - Partie 2: Fils en acier trempés à l'huile et revenus
Stahldraht für Federn - Teil 2: Ölschlussvergüteter Federstahldraht This European Standard was approved by CEN on 10 September 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10270-2:2011: ESIST EN 10270-2:2012

Additional information . 18A.1 Modulus of elasticity and shear modulus at room temperature . 18 SIST EN 10270-2:2012

ISO 7800, Metallic materials — Wire — Simple torsion test 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 oil hardened and tempered spring steel wire wire that is heat treated in line in the following way: it is first transformed into austenite, quenched in oil or similar quenching medium, followed immediately by tempering by heating to the appropriate temperature SIST EN 10270-2:2012

tensile strength FDC TDC VDC Medium tensile strength FDCrV TDCrV VDCrV High tensile strength FDSiCr TDSiCr VDSiCr Very high tensile strength FDSiCrV TDSiCrV VDSiCrV Diameter range (mm) 0,50 to 17,00 0,50 to 10,00 0,50 to 10,00
Medium and high fatigue grades TD and VD are characterized by high steel cleanliness, specific chemical, mechanical and technological parameters and a well defined surface condition in relation to the allowable depth of surface defects and decarburization. The static grade FD is characterized by its chemical, mechanical and technological characteristics as well as by a specified surface condition concerning surface defects and decarburization. 5 Information to be supplied by the purchaser The purchaser shall clearly state in his enquiry or order the product and following information:
a) the desired quantity; b) the term spring steel wire or straightened and cut lengths; c) the number of this European standard: EN 10270-2; d) the steel grade (see Tables 1 and 2); e) the nominal wire diameter selected from Tables 4 or 5 and for cut length the length and the length tolerance class (see Table 9); f) the form of delivery and unit mass (see 6.1); g) the type of inspection document; h) any particular agreement. EXAMPLE 5 t oil hardened and tempered spring steel wire according to this standard, grade VDC,
nominal diameter 2,50 mm in coils of about 300 kg; inspection document 3.1 according to EN 10204:2004: SIST EN 10270-2:2012

Cr V
max.max.max.
VDC 0,60 to 0,75 0,15 to 0,30 0,50 to 1,00 0,020 0,020 0,06 -b - VDCrV 0,62 to 0,72 0,15 to 0,30 0,50 to 0,90 0,025 0,020 0,06 0,40 to 0,60 0,15 to 0,25 VDSiCr 0,50 to 0,60 1,20 to 1,60 0,50 to 0,90 0,025 0,020 0,06 0,50 to 0,80 - VDSiCrV 0,50 to 0,70 1,20 to 1,65 0,40 to 0,90 0,020 0,020 0,06 0,50 to 1,00 0,10 to 0,25 C TDC 0,60 to 0,75 0,10 to 0,35 0,50 to 1,20 0,020 0,020 0,10 -b - TDCrV 0,62 to 0,72 0,15 to 0,30 0,50 to 0,90 0,025 0,020 0,10 0,40 to 0,60 0,15 to 0,25 TDSiCr 0,50 to 0,60 1,20 to 1,60 0,50 to 0,90 0,025 0,020 0,10 0,50 to 0,80 - TDSiCrV 0,50 to 0,70 1,20 to 1,65 0,40 to 0,90 0,020 0,020 0,10 0,50 to 1,00 0,10 to 0,25 C FDC 0,60 to 0,75 0,10 to 0,35 0,50 to 1,20 0,030 0,025 0,12 -b - FDCrV 0,62 to 0,72 0,15 to 0,30 0,50 to 0,90 0,030 0,025 0,12 0,40 to 0,60 0,15 to 0,25 FDSiCr 0,50 to 0,60 1,20 to 1,60 0,50 to 0,90 0,030 0,025 0,12 0,50 to 0,80 - FDSiCrV 0,50 to 0,7
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