EN 3557:2022

Aerospace series - Aluminium alloy AL-P6061-T4 - Drawn tube for pressure applications - 0,6 mm ≤ a ≤ 3 mm

This document specifies the requirements relating to:
Aluminium alloy AL-P6061-T4
Drawn tube for pressure applications
0,6 mm ≤ a ≤ 3 mm
for aerospace applications.

Luft- und Raumfahrt - Aluminiumlegierung AL-P6061-T4 - Gezogene Druckrohre - 0,6 mm ≤ a ≤ 3 mm

Série aérospatiale - Alliage d'aluminium AL-P6061-T4 - Tubes étirés pour applications sous pression - 0,6 mm ≤ a ≤ 3 mm

Le présent document spécifie les exigences relatives à :
Alliage d'aluminium AL-P6061-T4
Tubes étirés pour applications sous pression
0,6 mm ≤ a ≤ 3 mm
pour les applications aérospatiales.

Aeronavtika - Aluminijeva zlitina AL-P6061-T4 - Vlečena cev za tlačno uporabo - 0,6 mm ≤ a ≤ 3 mm

Ta dokument določa zahteve, ki se navezujejo na:
aluminijevo zlitino AL-P6061-T4,
vlečene cevi za tlačno uporabo,
0,6 mm ≤ a ≤ 3 mm,
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 20-Dec-2022
• 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: 21-Dec-2022
• Completion Date: 21-Dec-2022
• Ref Project: SIST EN 3557:2023 - Aerospace series - Aluminium alloy AL-P6061-T4 - Drawn tube for pressure applications - 0,6 mm ≤ a ≤ 3 mm

Overview

EN 3557:2022 - "Aerospace series - Aluminium alloy AL‑P6061‑T4 - Drawn tube for pressure applications - 0,6 mm ≤ a ≤ 3 mm" is a European standard that defines material, mechanical and inspection requirements for drawn aluminium tubes made from alloy AL‑P6061 in the T4 condition for aerospace pressure applications. The standard applies to drawn tubes with wall thicknesses from 0.6 mm to 3.0 mm and is intended to ensure consistent quality for components used in aircraft hydraulic, pneumatic and pressure-containing systems.

Key topics and requirements

• Material and chemistry: Limits and composition requirements for aluminium alloy AL‑P6061‑T4 are specified (e.g., Si and Mg ranges), with aluminium as the base element and controlled maximums for Fe, Cu, Mn, Cr, Zn, Ti and other elements.
• Dimensions and product form: Drawn tubes only, thickness a in the range 0.6 mm ≤ a ≤ 3.0 mm.
• Heat treatment and delivery condition: Tubes are supplied in T4 temper (natural age after solution treatment). The standard specifies the T4 heat treatment process (solution treatment in the ~530–540 °C range, water quench, followed by natural ageing at ambient for the specified time) and a delivery condition code U.
• Mechanical properties: Minimum mechanical property requirements are defined, including proof stress (Rp0.2 ≥ 110 MPa) and tensile strength (Rm ≥ 205 MPa). Minimum elongation values are specified and depend on thickness and specimen type.
• Testing and inspection: Requirements reference EN 2070‑5 for test methods and include flattening, grain size (G ≥ 4), flarability (drift test), visual inspection for external imperfections, pressure/ leakage tests, deformation under pressure, internal cleanliness for hydraulic tubes, surface roughness and batch uniformity.
• Marking, dimensional inspection and qualification: Marking and dimensional inspection are carried out per EN 2070‑5. Product qualification is handled according to EN 2043 with a qualification programme agreed between manufacturer and purchaser.

Applications and users

• Primary applications: Aerospace pressure systems - hydraulic lines, pneumatic tubing and other pressure-containing components where lightweight aluminium drawn tubes are required.
• Who uses this standard:
  • Tube manufacturers and suppliers producing AL‑P6061‑T4 drawn tubes
  • Aerospace OEMs and Tier‑1 suppliers specifying tubing for aircraft systems
  • Procurement, quality assurance and inspection teams verifying compliance
  • Certification and testing laboratories performing mechanical and pressure tests

Related standards

• EN 2070‑5 - Technical specification and test methods for aluminium tubes used under pressure
• EN 2043 - General requirements for semi‑finished product qualification (aerospace series)
• EN 4258 and EN 4500‑2 - Organization and drafting rules for aerospace metallic material standards

Keywords: EN 3557:2022, AL‑P6061‑T4, drawn tube, pressure applications, aerospace tubing, T4 temper, EN 2070‑5, EN 2043.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2023
Aeronavtika - Aluminijeva zlitina AL-P6061-T4 - Vlečena cev za tlačno uporabo -
0,6 mm ≤ a ≤ 3 mm
Aerospace series - Aluminium alloy AL-P6061-T4 - Drawn tube for pressure applications
- 0,6 mm ≤ a ≤ 3 mm
Luft- und Raumfahrt - Aluminiumlegierung AL-P6061-T4 - Gezogene Druckrohre - 0,6
mm ≤ a ≤ 3 mm
Série aérospatiale - Alliage d'aluminium AL-P6061-T4 - Tubes étirés pour applications
sous pression - 0,6 mm ≤ a ≤ 3 mm
Ta slovenski standard je istoveten z: EN 3557:2022
ICS:
49.025.20 Aluminij Aluminium
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3557
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 49.025.20
English Version
Aerospace series - Aluminium alloy AL-P6061-T4 - Drawn
tube for pressure applications - 0,6 mm  a  3 mm
Série aérospatiale - Alliage d'aluminium AL-P6061-T4 - Luft- und Raumfahrt - Aluminiumlegierung AL-P6061-
Tubes étirés pour applications sous pression - 0,6 mm
T4 - Gezogene Druckrohre - 0,6 mm  a  3 mm
 a  3 mm
This European Standard was approved by CEN on 24 July 2022.

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
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© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3557:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 5
Bibliography . 9

European foreword
This document (EN 3557:2022) 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 document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, 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 June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
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.
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 organisations of
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