SIST EN 2726:2019
(Main)Aerospace series - Aluminium alloy Al-C42201 - T6 - Sand castings - a ≤ 20 mm
Aerospace series - Aluminium alloy Al-C42201 - T6 - Sand castings - a ≤ 20 mm
This European Standard specifies the requirements relating to:
Aluminium alloy AL-C42201
T6
Sand casting
a ≤ 20 mm
for aerospace applications.
Luft- und Raumfahrt - Aluminiumlegierung Al-C42201 - T6 - Sandgußstück - a ≤ 20 mm
Série aérospatiale - Alliage d'aluminium Al-C42201 - T6 - Pièce moulée en sable - a ≤ 20 mm
La présente Norme européenne spécifie les exigences relatives à :
Alliage d'aluminium Al-C42201
T6
Pièce moulée en sable
a ≤ 20 mm
pour applications aérospatiales.
Aeronavtika - Aluminijeva zlitina Al-C42201 - T6 - Litje v pesek - a ≤ 20 mm
Ta evropski standard določa zahteve za:
aluminijeve zlitine AL-C42201,
T6
(litje v pesek)
a ≤ 20 mm
za uporabo v aeronavtiki.
General Information
- Status
- Published
- Publication Date
- 09-Dec-2018
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 29-Nov-2018
- Due Date
- 03-Feb-2019
- Completion Date
- 10-Dec-2018
Overview
EN 2726:2018 is a CEN (European) aerospace material standard that specifies requirements for Aluminium alloy AL‑C42201 in the T6 condition for sand castings with a maximum section thickness of a ≤ 20 mm. Intended for aerospace applications, the standard defines chemical identity (corresponding to ISO AlSi7Mg0,6 and similar to AA‑357.0), heat treatment, typical mechanical characteristics, inspection points and production guidance for pre‑production and production castings.
Key topics and technical requirements
- Material and form: Aluminium alloy AL‑C42201, sand castings, maximum nominal thickness a ≤ 20 mm. Delivery condition: T6.
- Chemical identity: Corresponds to ISO AlSi7Mg0,6 (similar to Aluminium‑Association alloy 357.0). Specific compositional limits are given in the standard.
- Heat treatment (T6): Typical solution treatment and ageing parameters are specified - solution temperature 525 °C to 550 °C, hold time 6 h to 24 h, and quench (water quench to ≤ 70 °C). The manufacturer may alternatively use a polymer quench to ≤ 30 °C unless purchaser specifies otherwise.
- Mechanical characteristics: The standard lists typical tensile and proof stress targets and low ductility expectations for this thin sand‑cast, T6 material (illustrative minima for proof stress and tensile strength are provided in the standard; note that values may vary regionally within castings and drawing‑specified requirements take precedence).
- Hardness: Typical hardness around HB 85 is noted.
- Inspection and testing: References to inspection, dimensional checks, marking and acceptance criteria are cross‑referenced to EN 2076‑3 (technical specification for pre‑production and production castings). The standard also points to requirements for external/internal defects and batch uniformity as per EN 2076‑3.
Applications and who uses this standard
- Aerospace casting designers and engineers specifying aluminium cast components where thin section sand castings (≤ 20 mm) are required.
- Foundries and heat‑treatment shops producing T6 sand castings to an aerospace specification.
- Quality, procurement and certification teams verifying material compliance, incoming inspection and supplier qualification.
- Typical applications include small, thin‑walled structural and non‑structural aerospace cast parts where the combination of AlSi7Mg chemistry and T6 treatment is appropriate.
Related standards
- EN 2076‑3 - Aerospace series: aluminium and magnesium alloy ingots and castings - Part 3: Pre‑production and production castings (referred for technical specification, inspection and testing).
- EN 4258 - Organization of aerospace metallic material standards.
- EN 4500‑2 - Rules for drafting aluminium/magnesium material standards.
EN 2726:2018 is a practical reference for compliance, procurement and process control when using AL‑C42201 (AlSi7Mg0,6) T6 sand castings in aerospace components.
Frequently Asked Questions
SIST EN 2726:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Aluminium alloy Al-C42201 - T6 - Sand castings - a ≤ 20 mm". This standard covers: This European Standard specifies the requirements relating to: Aluminium alloy AL-C42201 T6 Sand casting a ≤ 20 mm for aerospace applications.
This European Standard specifies the requirements relating to: Aluminium alloy AL-C42201 T6 Sand casting a ≤ 20 mm for aerospace applications.
SIST EN 2726:2019 is classified under the following ICS (International Classification for Standards) categories: 49.025.20 - Aluminium. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 2726:2019 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2019
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Ta slovenski standard je istoveten z: EN 2726:2018
ICS:
49.025.20 Aluminij Aluminium
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 2726
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2018
EUROPÄISCHE NORM
ICS 49.025.20
English Version
Aerospace series - Aluminium alloy Al-C42201 - T6 - Sand
castings - a ≤ 20 mm
Série aérospatiale - Alliage d'aluminium Al-C42201 - Luft- und Raumfahrt - Aluminiumlegierung Al-C42201
T6 - Pièce moulée en sable - a ≤ 20 mm - T6 - Sandgußstück - a ≤ 20 mm
This European Standard was approved by CEN on 24 September 2018.
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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2726:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 5
European foreword
This document (EN 2726:2018) 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 May 2019, and conflicting national standards shall be
withdrawn at the latest by May 2019
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] 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,
...
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