1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58The European Standard EN 4615:2005 has the status of a British StandardICS 49.025.15Magnesium alloy
2、 MG-C18002 T4 Sand castingBRITISH STANDARD AEROSPACE SERIESBS EN 4615:2005BS EN 4615:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 17 November 2005 BSI 17 November 2005ISBN 0 580 46835 6Cross-referencesThe British Standards which implem
3、ent international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does
4、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title
5、 page, pages 2 to 7 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this subcommittee can be obtained on request to its secretary.enquiries
6、 on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 4615:2005.The UK participation in its preparati
7、on was entrusted by Technical Committee ACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any EUROPEAN STANDARDNORME EUROPENN
8、EEUROPISCHE NORMEN 4615October 2005ICS 49.025.15English VersionAerospace series - Magnesium alloy MG-C18002 - T4 - SandcastingSrie arospatiale - Alliage de magnsium MG-C18002 -T4 - Produit coul en sableLuft- und Raumfahrt - Magnesiumlegierung MG-C18002 -T4 - SandgustckThis European Standard was appr
9、oved by CEN on 26 September 2005.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 nationa
10、lstandards 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
11、 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, N
12、orway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by an
13、y means reservedworldwide for CEN national Members.Ref. No. EN 4615:2005: E2 Contents Page Foreword 3 Introduction4 1 Scope .4 2 Normative references .4 EN 4615:20053 Foreword This European Standard (EN 4615:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardiza
14、tion (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 b
15、e given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. Attention is drawn to the possibility that some of the elements of this document ma
16、y 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
17、, 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 the United Kingdom. EN 4615:20054 Introduction This
18、 standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-2. 1 Scope This standard specifies the requirements relating to: Magnesium alloy M
19、G-C18002 T4 Sand casting for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includin
20、g any amendments) applies. EN 2076-3, Aerospace series Aluminium and magnesium alloy ingots and castings Technical specification Part 3: Pre-production and production castings. EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards an
21、d their use. EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific rules for aluminium, aluminium alloys and magnesium alloys.1)1) Published as AECMA Prestandard at the date of publication of this standard. EN 4615:20055 1 Material
22、designation Magnesium alloy MG C18002 aOthers Element Al Cu Fe Mn Ni Si Zn Sn Pb Each Total Mg min. 7,5 0,12 0,20 2 Chemical composition % max. 9,2 0,005 0,003 0,7 0,001 0,01 1,0 0,001 0,005 0,05 0,30 Base 3 Method of melting 4.1 Form Sand casting 4.2 Method of production Sand casting 4.3 Limit dime
23、nsion(s) mm 5 Technical specification EN 2076-3 Delivery condition T4 6.1 Heat treatment 425 C 435 C / 12 h t 20 h / WQ 60 C 80 C b6.2 Delivery condition code U Use condition T4 7 Heat treatment Delivery condition Characteristics 8.1 Test sample(s) Separately cast Cut-up, undesignated location, gate
24、d or integral Cut-up, designated location 8.2 Test piece(s) See EN 2076-3. See EN 2076-3. See EN 2076-3. 8.3 Heat treatment Use condition Use condition Use condition 9 Dimensions concerned mm See EN 2076-3. a 20 a 20 10 Thickness of cladding on each face % 11 Direction of test piece 12 Temperature C
25、 Ambient Ambient Ambient 13 Proof stress Rp0,2MPa 80 60 c 60 c14 Strength RmMPa 200 120 c 120 c15 Elongation A % 7 5 c 5 c16 T Reduction of area Z % 17 Hardness 18 Shear strength RcMPa 19 Bending k 20 Impact strength 21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa
26、26 C Elongation at rupture A % 27 Notes (see line 98) a b c EN 4615:20056 44 External defects See EN 2076-3. 61 Internal defects See EN 2076-3. 82 Batch uniformity See EN 2076-3. 55 (Typical value) 7Hardness HB 20 per batch 95 Marking inspection See EN 2076-3. 96 Dimensional inspection See EN 2076-3
27、. 98 Notes aSimilar to alloy designation ISO MgAl8Zn and alloy designations AZ81A and AZ80 but has tighter controls on impurity elements in order to promote maximum corrosion resistance. b Unless otherwise advised by the purchaser, the manufacturer may, at his discretion, and especially to minimize
28、distortion in thin sections, alternatively air cool to ambient temperature from the solution heat treatment temperature or use water with quench additives (polymer quench) at 30 C. cThe tensile properties stated may not be consistently achievable in all parts of all castings. Any differing requireme
29、nts stated on the drawing shall take precedence over those of this material standard. 99 Typical use EN 4615:20057 100 Product qualification See EN 2076-3. Qualification programme to be agreed between manufacturer and purchaser. EN 4615:2005BS EN BSI389 Chiswick High RoadLondonW4 4AL4615:2005BSI Bri
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