EN 12420:2014

Copper and copper alloys - Forgings

This European Standard specifies the composition, the property requirements and tolerances on dimensions and form for copper and copper alloy die and hand forgings.
The sampling procedures, the methods of test for verification of conformity to the requirements of this standard, and the delivery conditions are also specified.

Kupfer und Kupferlegierungen - Schmiedestücke

Diese Europäische Norm legt die Zusammensetzung, die Anforderungen an die Eigenschaften und Maß  und Formtoleranzen für Gesenk  und Freiformschmiedestücke aus Kupfer und Kupferlegierungen fest.
Der Ablauf der Probenentnahme, die Prüfverfahren zur Feststellung der Übereinstimmung mit den Anforderungen dieser Norm und die Lieferbedingungen sind ebenfalls festgelegt.

Cuivre et alliages de cuivre - Pièces forgées

La présente Norme européenne spécifie la composition, les propriétés et les tolérances dimensionnelles et de forme des pièces forgées par matriçage et des pièces forgées libres en cuivre et alliages de cuivre.
Les modes opératoires d’échantillonnage, les méthodes d’essai pour la vérification de la conformité aux exigences de la présente norme et les conditions de livraison sont également spécifiés.

Baker in bakrove zlitine - Izkovki

EN 12420 določa sestavo, zahteve glede lastnosti in dopustna odstopanja od dimenzij in oblik za baker, barve bakrovih zlitin in izkovke. Določeni so tudi postopki vzorčenja, preskusne metode za preverjanje skladnosti z zahtevami tega evropskega standarda in dobavni pogoji.

General Information

• Status: Withdrawn
• Publication Date: 24-Jun-2014
• Withdrawal Date: 15-Oct-2024
• ICS: 77.150.30 - Copper products
• Technical Committee: CEN/TC 133 - Copper and copper alloys
• Drafting Committee: CEN/TC 133/WG 4 - Extruded and drawn products, forgings and scrap
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 12420:2014 - Copper and copper alloys - Forgings

Relations

• Replaces: EN 12420:1999 - Copper and copper alloys - Forgings
• Effective Date: 08-Jun-2022
• Replaced By: EN 12420:2024 - Copper and copper alloys - Forgings
• Effective Date: 18-Jan-2023

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Baker in bakrove zlitine - IzkovkiKupfer und Kupferlegierungen - SchmiedestückeCuivre et alliages de cuivre - Pièces forgéesCopper and copper alloys - Forgings77.150.30Bakreni izdelkiCopper productsICS:Ta slovenski standard je istoveten z:EN 12420:2014SIST EN 12420:2014en,fr,de01-september-2014SIST EN 12420:2014SLOVENSKI
STANDARDSIST EN 12420:19991DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12420
June 2014 ICS 77.150.30 Supersedes EN 12420:1999English Version
Copper and copper alloys - Forgings
Cuivre et alliages de cuivre - Pièces forgées
Kupfer und Kupferlegierungen - Schmiedestücke This European Standard was approved by CEN on 24 April 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12420:2014 ESIST EN 12420:2014

Recommended guidelines for design . 39 A.1 Introduction . 39 A.2 General information . 39 A.3 Guidelines for die forgings . 40 A.3.1 Drafts . 40 A.3.2 Web thicknesses . 40 A.3.3 Side wall thicknesses . 41 A.3.4 Rib design . 42 A.3.5 Cores . 43 A.3.6 Flash . 44 A.3.7 Transition radii . 45 A.3.8 Clamping lengths and clamping areas for finish machining . 47 A.3.9 Design for cross-sectional shapes . 47 A.3.10 Recommended machining allowances and total allowances . 48 A.4 Guidelines for hand forgings . 50 A.4.1 General . 50 A.4.2 General information . 50 A.4.3 Section changes and transitions . 51 A.4.4 Recommended machining allowances . 51 A.4.5 Total allowances per side of forging . 52 A.5 Guidelines for marking . 52 Annex B (informative)
Tensile properties . 54 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC, Pressure Equipment Directive (PED) . 58 Bibliography . 59
...