EN 2321:2019

Aerospace series - Aluminium alloy 2024-T3 - Bars and sections - a ≤ 150 mm

This European Standard specifies the requirements relating to:
Aluminium alloy 2024-T3
Bars and sections
a ≤ 150 mm
for aerospace applications.

Luft- und Raumfahrt - Aluminiumlegierung 2024-T3 - Stangen und Profile - a ≤ 150 mm

Série aérospatiale - Alliage d'aluminium 2024-T3 - Barres et profilés - a ≤ 150 mm

La présente norme européenne spécifie les exigences relatives à :
Alliage d'aluminium 2024-T3
Barres et profilés
a ≤ 150 mm
pour applications aérospatiales.

Aeronavtika - Aluminijeva zlitina 2024-T3 - Palice in profili a < ali = 150 mm

Ta evropski standard določa zahteve za:
aluminijeve zlitine 2024-T3,
palice in profile,
a ≤ 150 mm,
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 26-Mar-2019
• Withdrawal Date: 29-Sep-2019
• ICS: 49.025.20 - Aluminium
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 1 - Aluminium
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 27-Mar-2019
• Completion Date: 27-Mar-2019
• Ref Project: SIST EN 2321:2019 - Aerospace series - Aluminium Alloy 2024-T3 - Bars and Sections a < or = 150 mm

Overview

EN 2321:2019 is a European (CEN) aerospace series standard that specifies requirements for aluminium alloy 2024-T3 supplied as extruded bars and sections with a maximum characteristic dimension a ≤ 150 mm. Prepared under ASD‑STAN and published in 2019, the standard is intended for aerospace applications and sits within the family of metallic material standards for aircraft structural use.

Key topics and requirements

• Material designation: Aluminium alloy 2024 in the T3 delivery condition (solution treated, water quenched and naturally aged).
• Heat treatment: Solution treated at 495 °C ± 5 °C, water quenched to ≤ 40 °C and naturally aged (T3).
• Form and limits: Extruded bars and sections (L, T, channel, round, square/rectangular profiles) with maximum section dimension a ≤ 150 mm. Special consideration is noted where a > 100 mm.
• Chemical composition: The standard sets elemental limits for 2024 alloy (examples included in the document): Si and Fe ≤ 0.50%; Cu ≈ 3.8–4.9%; Mn ≈ 0.30–0.90%; Mg ≈ 1.2–1.8%; Cr ≈ 0.10%; Ti and Zr limits; other elements limited individually and in total; aluminium as remainder.
• Mechanical and physical properties: EN 2321 references requirements by section-size ranges for proof stress (Rp0.2), tensile strength (Rm) and elongation (A%). Hardness 120 HB is given for information; electrical conductivity is noted (≈ 17–20 MS/m for information).
• Tests and inspections: Specifies test-piece orientation (longitudinal), ambient test temperature, marking and dimensional inspections, and requirement to follow EN 4400-3 for technical specification of bars and sections. Product qualification programmes are to be agreed between manufacturer and purchaser.

Applications

EN 2321:2019 is used where reliable, aviation-grade aluminium bars and extruded profiles are required:

• Structural aircraft components (frames, fittings, stiffeners)
• Landing gear supports, brackets and couplings (where 2024 alloy’s strength is needed)
• Aerospace manufacturing, supply chain procurement and quality control
• Design engineers specifying raw material for certification and testing

Typical users:

• Materials and metallurgical engineers
• Aerospace OEMs and tiered suppliers
• Procurement and quality assurance teams
• Test laboratories and certification bodies

Related standards

The standard references and works with several aerospace dimensional and material documents, including:

• EN 4400-3 (technical specification for aluminium bar and section)
• EN 2047 / EN 2048 / EN 2049 / EN 2050 / EN 2066 / EN 2134 / EN 2341 (dimensional/tolerance standards for specific profiles)
• EN 4258 and EN 4500-2 (organization and drafting rules for aerospace metallic material standards)

Keywords: EN 2321:2019, aluminium alloy 2024-T3, aerospace bars and sections, T3 delivery condition, extruded profiles, aerospace material standard.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Aluminijeva zlitina 2024-T3 - Palice in profili a < ali = 150 mmAerospace series - Aluminium Alloy 2024-T3 - Bars and Sections a < or = 150 mm49.025.20AluminijAluminiumICS:Ta slovenski standard je istoveten z:EN 2321:2019SIST EN 2321:2019en,fr,de01-junij-2019SIST EN 2321:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2321
March
t r s { ICS
v {ä r t wä t r English Version
Aerospace series æ Aluminium alloy
t r t væT u æ Bars and sections æ a ≤
s w r m Série aérospatiale æ Alliage d 5aluminium
t r t væT u æ Barres et profilés æ a ≤
s w r mm
Luftæ und Raumfahrt æ Aluminiumlegierung
t r t væT u æ Stangen und Profile æ a ≤
s w r mm This European Standard was approved by CEN on
t July
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
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B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t u t sã t r s { ESIST EN 2321:2019

w 2 Normative references .
w 3 Terms and definitions .
w 4 Requirements . 6
EN 2321:2018 (E)EN 2321:2019 (E) 3 European foreword This document (EN 2321:2019) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 September 2019, and conflicting national standards shall be withdrawn at the latest by September 2019. 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. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 2321:2019
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