1、Document ProjectNo. Committee ref IDCI 97/719216 97 5286 ACE115 Draft for Public Comment Latest date for receipt of comments 3nshRIc I4py Q c? I I Date I 16 NOVEMBER 1997 DRAFT EUROPEAN (AECMA) AEROSPACE STANDARD STEEL FE-PM3902 (X7CrNiA117-7) AIR MELTED SOLUTION TREATED AND PRECIPITATION HARDENED S
2、HEET AND STRIP a no acknowledgment will normally be sent. MR P RYDON Requests for purchase of further copies of thus draft shoula be sent to Customer Services, at the head office address below. Telephone 0181 996 7000, fax 0181 996 7QOI. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH
3、STANDARD Head office 389 Chiswick High Road London W4 4AL Telephone O181 996 9000 Fax 0181 996 7400 036-9108 AI JnFomJI Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without lice
4、nse from IHS-,-,-Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BSI COMMITTEES TO WHOSE MEMBERS THIS DRAFT HAS ALSO BEEN SENT CONSTITUTION ORGANIZATIO
5、NS REPRESENTED - -_-_- BRITISH INVESTMENT CASTING TRADE ASSOCIATION CASTINGS DEVELOPMENT CENTRE CIVIL AVIATION AUTHORITY (AIRWORTHINESS DIVISION) CONFEDERATION OF BRITISH FORGERS INSTITUTE OF SPRING TECHNOLOGY MINISTRY OF DEFENCE SOCIETY OF BRITISH AEROSPACE COMPANIES LIMITED STAINLESS STEEL WIRE IN
6、DUSTRY ASSOCIATION U K STEEL ASSOCIATION - A2 - 97/719216 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Association Europeene des Construct
7、eurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-pr EN 2540 DRAFT EUROPEAN (AECMA) AEROSPACE STANDARD This DPC refers to a draft text currently at the PPN ballot stage within a technical committee
8、of AECMA (The European Association of Aerospace Industries) l. The voting period within the AECMA technical committee is exceptionally only one month from the date of dispatch of the originating document from BNAE, hence this will be completed well before the expiry of the DPC comment date. Any comm
9、ents received as a result of the DPC, after the expiry of the PPN ballot, will be reviewed by the relevant BSI committee and taken into account when they consider the UK view and vote on a possible BS EN publication. ) AECMA consists of the national aerospace trade associations from nine European co
10、untries, the UK member being SBAC ( Society of British Aerospace Companies). AECMA has been given a mandate by CEN to prepare all European Aerospace Standards on its behalf. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for Resa
11、leNo reproduction or networking permitted without license from IHS-,-,-5 7 f 7 1 92 i 6 OC Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DRAFT prEN 2
12、540 Date : 10-97 Edition : P1 STUDY : C5 DRAWN“: 3 STAGE : 20 Ref.: EFA Superseding Ref.: ENGUSH VERSION Aerospace series Steel FE-PM3902 (X7CrNiAi17-7) Air meited Solution treated and precipitation hardened Sheet and strip as6mm 1 240 MPa s Rm s 1 450 MPa Srie arospatiale Acier FE-PM3902 (XCrNiAI17
13、-7) Elabore a Vair Mis en solution et durci par prcipitation Tles et bandes asmm 1 240 MPa s Rm 5 1 450 MPa Luft- und Raumfahrt Stahl FE-PM3902 (X7CrNiAll7-7) Lufterschmolzen Lsungsgeglht und ausgelagert Bleche und Bnder asmm 1 240 MPa s Rm s 1 450 MPa en CIfr CI de Master document : Sponsor : Mr. B
14、OlTOMLEY 1171 7 192 160c THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STXVDARDIZATION Gulledeie PI, B - 1200 Bruxelies Tel, : (32) 2 775 8110 Fax.: (32) 2 775 8111 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo
15、 reproduction or networking permitted without license from IHS-,-,-rage 2 prEN 2540 : 1997 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN
16、2540 : 1997 O Introduction This 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 4500-5. 1 Scope This standard specifies the requirements
17、 relating to : Steel FE-PM3902 (X7CrNiAI17-7) Air melted Solution treated and precipitation hardened Sheet and strip asmm 1 240 MPa s R, s 1 450 MPa for aerospace applications. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications
18、. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For
19、undated references the latest edition of the publication referred to applies. EN 2043 Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings) l) EN 4235-2 Aerospace series - Steel wrought products - Technical specificatio
20、n - Part 2 : Plate, sheet and strip EN 4258 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use l) EN 4500-5 Aerospace series - MetaUic materials - Rules for drafting and presentation of material standards - Part 5 : Spe
21、cific rules for steel 1) Published as AECMA Prestandard at the date of publication of this standard B Mi2 I I i OI97K6 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without licen
22、se from IHS-,-,-1 2 Material designation Steel FE-PM3902 (X7CrNiAll7-7) Chemical composition % Element C si Mn P S cr Cu Ni Al Fe - - - - min. - - 16.0 6.50 0,751 max. 0,09 1.00 1.00 0.040 0,030 18.0 0,50 7,75 1.50 . Base 3 4.1 5 I Technical specification I Method of melting Air melted Form Sheet an
23、d strip EN4235-2 4.2 4.3 Method of production Cold rolled Limit dimension(s) mm as6 I Heat treatment 0.1 1 025 “C s BO 1 055 CIt r 30 min1 AC or OQ I Delivery condition Solution treated 5.2 7 - Use condition Heat treatment Soluon treated and precipitation hardened Delivery condrton 740 “C s 6s 780 “
24、Clt a 90 min + cool to 8s 20 “C 1 within 1 h 1 hold for 30 min + 550 “CO BO 580 C/t r 90 min1AC Characteristics 3.1 3.2 Test sample(s) See EN 4235-2 Test piece(s) See EN 4235-2 3.3 9 - Heat treatment Ddiq condition Use condiuon Dimensions concerned mm as5 I 5cas6 as6 - - 11 I Direction of test piece
25、 I I I See EN 4235-2 I lo I - Thickness of cladding on % - - - I Ambient Proof stress MPa - Rm MPa - - Elongation A% 1 - a1 o35 - 1240iRms1450 r5 - -II I 16 17 Reductionofarea Z % - - - Hardness s229HV S229HV r 38 HRC 41 I i 8 19 Shear strength Re MPa - - - Bending k- 0,5 a = 180 o 1.5 a = 180 - 20
26、I impact strength I I A% I 27 1 Notes (see line 98) I I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 5 prEN 2540 : 1997 External defects larkin
27、g inspection hnensionai inspection lotes ypical use See EN 4235-2 I - -I See EN 4235-2 -I - I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6 xE
28、N 2540 : 1997 Product qualification BMl2 Il l97K6 See EN 2043 Qualification programme to be agreed between manufacturer and purchaser. 4717 192 16oC Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
