SIST EN 2731:2005

Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand casting

This standard specifies the requirements relating to:
Magnesium alloy MG-C46001
T6
Sand casting
for aerospace application.

Luft- und Raumfahrt - Magnesiumlegierung MG-C46001 - T6 - Sandgussstück

Diese Norm legt die Anforderungen an
Magnesiumlegierung MG-C46001-
T6
Sandgussstück
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Alliage de magnésium MG-C46001 - T6 - Produit coulé en sable

Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand casting

General Information

• Status: Published
• Publication Date: 30-Nov-2005
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2005
• Due Date: 01-Dec-2005
• Completion Date: 01-Dec-2005
• Ref Project: EN 2731:2005 - Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand casting

Overview

EN 2731:2005 - "Aerospace series - Magnesium alloy MG‑C46001 - T6 - Sand casting" is a CEN (AECMA-STAN) material standard that defines requirements for sand-cast magnesium alloy MG‑C46001 supplied in the T6 temper for aerospace applications. The standard establishes delivery condition, heat‑treatment schedules, mechanical property targets, inspection and testing references, and links to the broader aerospace metallic materials framework.

Key topics and requirements

• Material designation: Magnesium alloy MG‑C46001, supplied as sand castings.
• Delivery condition: T6 temper; delivery condition code U.
• Heat treatment (specified):
  • Solution treatment: 510 °C ≤ θ ≤ 545 °C for 4–8 h, then water quench to 60–80 °C.
  • Artificial ageing: 195 °C ≤ θ ≤ 205 °C for 8–16 h, air cool.
  • Note: purchaser and manufacturer may agree alternative quenching (air cool from solution temp or polymer quench ≤ 30 °C) to minimize distortion in thin sections.
• Mechanical properties (typical requirements):
  • Proof stress (p0.2), tensile strength (Rm) and elongation (A) minima are specified (e.g., Rm ≥ 240 MPa, p0.2 and A values given per thickness/use condition). The standard warns these properties may not be uniform across all parts; drawing requirements take precedence.
• Quality and inspection: External/internal defect limits, dimensional inspection, marking and batch uniformity reference EN 2076‑3 (pre‑production and production castings).
• Hardness: Typical hardness ~70 HB with allowable batch variation Δ ≤ 20.
• Notes: Alloy is similar to MSR‑B and QE22A; product qualification and inspection programmes are to be agreed between manufacturer and purchaser (see EN 2076‑3).

Applications and users

EN 2731:2005 is targeted at organizations involved in the specification, manufacture, procurement and certification of aerospace magnesium castings:

• Aerospace OEMs and tier suppliers specifying sand‑cast magnesium components in T6 condition.
• Foundries and heat‑treatment shops producing MG‑C46001 castings for aerospace.
• Materials and design engineers evaluating lightweight cast magnesium solutions.
• Quality, procurement and certification teams using standardized acceptance criteria and qualification routes.

Typical use: specification and acceptance of sand‑cast, T6‑treated magnesium parts intended for aerospace structural or non‑structural applications where material standardization, heat treatment and reproducible mechanical performance are required.

Related standards

• EN 2076‑3 - Aluminium and magnesium alloy ingots and castings - Part 3: Pre‑production and production castings (tests, inspection, qualification).
• EN 4258 - General organization of aerospace metallic material standards.
• EN 4500‑2 - Rules for drafting/presentation of aluminium and magnesium material standards.

Keywords: EN 2731:2005, magnesium alloy MG‑C46001, T6 sand casting, aerospace magnesium standards, Mg‑C46001 T6, EN 2076‑3.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2005
Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand casting
Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand casting
Luft- und Raumfahrt - Magnesiumlegierung MG-C46001 - T6 - Sandgussstück
Série aérospatiale - Alliage de magnésium MG-C46001 - T6 - Produit coulé en sable
Ta slovenski standard je istoveten z: EN 2731:2005
ICS:
49.025.15 Neželezove zlitine na Non-ferrous alloys in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 2731
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 49.025.15
English Version
Aerospace series - Magnesium alloy MG-C46001 - T6 - Sand
casting
Série aérospatiale - Alliage de magnésium MG-C46001 - Luft- und Raumfahrt - Magnesiumlegierung MG-C46001 -
T6 - Produit coulé en sable T6 - Sandgußstück
This European Standard was approved by CEN on 22 April 2005.
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 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 translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
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, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2731:2005: E
worldwide for CEN national Members.

Contents
Foreword .3
Introduction.4
1 Scope .4
2 Normative references .4

Foreword
This document (EN 2731:2005) has been prepared by the European Association of Aerospace
Manufacturers - Standardization (AECMA-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
AECMA, 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 February 2006, and conflicting national standards shall be withdrawn
at the latest by February 2006.
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, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ice
...