EN 13981-4:2006

Aluminium and aluminium alloys - Products for structural railway applications - Technical conditions for inspection and delivery - Part 4: Forgings

This European Standard specifies requirements for forgings (hand forgings, die forgings) which contribute to the structural properties of the railcar bodyshell and other major structural components.
The requirements on welded joints specified in this European Standard are not applicable to welded assemblies and sub assemblies as they are specified for material qualification purposes only.
It specifies particular requirements regarding qualification, quality control, material properties and dimensional tolerances. Furthermore, guide lines for application and use are given.

Aluminium und Aluminiumlegierungen - Erzeugnisse für tragende Anwendungen im Schienenfahrzeugbau - Technische Lieferbedingungen - Teil 4: Schmiedestücke

Diese Europäische Norm legt Anforderungen an Schmiedestücke (Freiformschmiedestücke, Gesenk¬schmiedestücke) fest, die für die tragenden Eigenschaften von Wagenkästen für Schienenfahrzeuge und andere wichtige tragende Bauteile maßgeblich sind.
Die in dieser Europäischen Norm festgelegten Anforderungen an Schweißverbindungen gelten nicht für geschweißte Baugruppen und Bauuntergruppen, da sie nur zur Qualifizierung der Werkstoffe festgelegt sind.
Sie legt besondere Anforderungen an Eignung, Qualitätsprüfung, Werkstoffeigenschaften und Maßtoleranzen fest. Außerdem werden Leitlinien für Anwendung und Gebrauch angegeben.

Aluminium et alliages d'aluminium - Produits pour applications ferroviaires structurales - Conditions techniques de contrôle et de livraison - Partie 4: Pièces forgées

Aluminij in aluminijeve zlitine - Izdelki za železniške naprave - Tehnični pogoji za prevzem in dobavo - 4. del: Izkovki

General Information

• Status: Published
• Publication Date: 21-Nov-2006
• Withdrawal Date: 30-May-2007
• ICS: 77.150.10 - Aluminium products
• Technical Committee: CEN/TC 132 - Aluminium and aluminium alloys
• Drafting Committee: WG 33 - Specific applications
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 02-Dec-2023
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 13981-4:2007 - Aluminium and aluminium alloys - Products for structural railway applications - Technical conditions for inspection and delivery - Part 4: Forgings

Overview

EN 13981-4:2006 - published by CEN - defines the technical conditions for inspection and delivery of aluminium forgings used in structural railway applications. It covers hand and die forgings that contribute to the structural properties of railcar bodyshells and other major structural components. The standard sets out requirements for qualification, quality control, material properties, dimensional tolerances and provides application guidance. Note: requirements on welded joints are intended for material qualification only and do not apply to finished welded assemblies or sub‑assemblies.

Key topics and technical requirements

• Scope and applicability: Forgings for structural railway uses (railcar bodyshells, major structural components).
• Alloys and limits: Typical alloys listed include EN AW-5754, EN AW-5083, EN AW-6082, EN AW-6061, EN AW-6110A. Lead content in 6xxx series is limited to max. 0.01%.
• Tempers: Tempers follow EN 586-2 and EN 515; other tempers require mutual agreement and qualification.
• Mechanical properties:
  • Static: tensile strength, yield and elongation per EN 586-2 or as agreed.
  • Cyclic (fatigue): minimum fatigue conditions specified (test condition example: 97.5% non‑failure at 10^7 cycles); fatigue testing procedures are given.
• Welded joints: Mechanical requirements and test procedures are included for qualification of weld material/joint performance (static and cyclic), but are not prescriptions for welded assemblies.
• Inspection & testing: Chemical analysis, tensile tests, fatigue tests, dye‑penetrant, metallography, visual, ultrasonic and dimensional measurements - with sampling and lot rules.
• Quality system & documentation: Manufacturer quality management expected to be at least equivalent to EN ISO 9001; inspection plans, traceability, marking, declaration of conformity and record keeping are specified.
• Dimensional tolerances & packaging: Tolerances follow EN 586-3; packaging and delivery documentation requirements are described.
• Guidance: Annex C offers practical guidance on alloy selection, fatigue design and welding for railway applications.

Practical applications and users

• Who uses it: Forging manufacturers, railcar OEMs, design engineers, procurement/specification teams, QA managers, welding engineers, testing laboratories and certification bodies.
• Why it matters: Ensures consistent material quality, traceability, and validated performance (static and fatigue) of aluminium forgings used in load‑bearing railway structures - reducing risk and speeding acceptance of parts in rail projects.

Related standards

• EN 13981 series (Parts 1–3: extruded products, plates & sheets, castings)
• EN 586 (forging references), EN 573‑3 (chemical composition), EN 515 (tempers), EN ISO 10042 (weld quality levels), EN 10204 (inspection documents), EN ISO 9001 (quality management).

Keywords: EN 13981-4:2006, aluminium forgings, structural railway applications, railcar bodyshell, fatigue testing, welded joint qualification, quality control, dimensional tolerances.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium and aluminium alloys - Products for structural railway applications - Technical conditions for inspection and delivery - Part 4: ForgingsAluminium et alliages d'aluminium - Produits pour applications ferroviaires structurales - Conditions techniques de contrôle et de livraison - Partie 4: Pieces forgéesAluminium und Aluminiumlegierungen - Erzeugnisse für tragende Anwendungen im Schienenfahrzeugbau - Technische Lieferbedingungen - Teil 4: SchmiedestückeTa slovenski standard je istoveten z:EN 13981-4:2006SIST EN 13981-4:2007en77.150.10Aluminijski izdelkiAluminium products45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:SLOVENSKI
STANDARDSIST EN 13981-4:200701-februar-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13981-4November 2006ICS 77.150.10 English VersionAluminium and aluminium alloys - Products for structural railwayapplications - Technical conditions for inspection and delivery -Part 4: ForgingsAluminium et alliages d'aluminium - Produits pourapplications ferroviaires structurales - Conditionstechniques de contrôle et de livraison - Partie 4: PiècesforgéesAluminium und Aluminiumlegierungen - Erzeugnisse fürtragende Anwendungen im Schienenfahrzeugbau -Technische Lieferbedingungen - Teil 4: SchmiedestückeThis European Standard was approved by CEN on 6 October 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13981-4:2006: E

Mechanical properties of alloys EN AW-6061 and EN AW-6110A.15 Annex B (normative)
Test pieces for fatigue testing.16 Annex C (informative)
Guidelines for application and use.17

Chemical composition of EN AW-6110A [EN AW-Al Mg0,9Si0,9MnCu].20 Bibliography.21
Figures Figure B.1 — Test pieces for fatigue testing.16
Tables Table 1 — Fatigue properties of forgings (not applicable for design purposes, see C.2).7 Table 2 — Fatigue properties of MIG welded butt joints (not applicable for design purposes, see C.2).9 Table 3 — Product inspection and testing procedures.10 Table 4 — Fatigue test factor F.12 Table A.1 — Mechanical properties of alloy EN AW-6061 and EN AW-6110A forgings.15 Table B.1 — Dimensions of test pieces.16 Table C.1 — Mechanical properties of welded butt joints, EN ISO 10042 class C, MIG welded.19 Table D.1 — Chemical composition of alloy EN AW-6110A.20
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