1、BRITISH STANDARDBS EN 3971:2006Aerospace series Steel FE-PL1507 (40CrMoV12) Consumable electrode remelted Annealed Forging stock a or D u 350 mmThe European Standard EN 3971:2006 has the status of a British StandardICS 49.025.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g
2、53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 3971:2006This British Standard was published under the authority of the Sta
3、ndards Policy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 50082 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 3971:2006.The UK participation in its preparation was entrusted by Technical Committee ACE/61, Metallic materials for a
4、erospace purposes, to Panel ACE/61/-/15, Steels.A list of organizations represented on ACE/61/-/15 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a
5、British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3971 December 2006 ICS 49.025.10 Eng
6、lish Version Aerospace series - Steel FE-PL1507 (40CrMoV12) - Consumable electrode remelted - Annealed - Forging stock - a or D 350 mm Srie arospatiale - Acier FE-PL1507 (40CrMoV12) - Refondu llectrode consommable - Recuit - Produits destins la forge - a ou D 350 mm Luft- und Raumfahrt - Stahl FE-PL
7、1507 (40CrMoV12) - Mit selbstverzehrender Elektrode umgeschmolzen - Geglht - Schmiedevormaterial - a oder D 350 mm This European Standard was approved by CEN on 18 October 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this E
8、uropean 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 (Engl
9、ish, 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, Cz
10、ech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EU
11、ROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3971:2006: ELicensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:0
12、0 2007, Uncontrolled Copy, (c) BSI2 Foreword This document (EN 3971:2006) 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 t
13、he 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 June 2007, and
14、conflicting national standards shall be withdrawn at the latest by June 2007. 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. Accordin
15、g 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, Iceland, Ireland, Italy, Latvia, Lithuania,
16、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3971:2006Licensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI3 Introduction This standard is part of the series of EN m
17、etallic 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 relating to: Steel FE-PL1507 (40CrMoV12) Consumable electrode remelte
18、d Annealed Forging stock a or D 350 mm 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 docu
19、ment (including any amendments) applies. EN 2002-8, Aerospace series Metallic materials Test methods Part 8: Micrographic determination of grain size. 1)EN 2003-7, Aerospace series Steel Test methods Part 7: Macrographic test. 1)EN 2043, Aerospace series Metallic materials General requirements for s
20、emi-finished product qualification (excluding forgings and castings). 1)EN 2157-2, Aerospace series Steel Forging stock and forgings Technical specification Part 2: Forging stock. EN 2957, Aerospace series Method of preparation of forged samples. 1)EN 4258, Aerospace series Metallic materials Genera
21、l organization of standardization Links between types of EN standards and their use. EN 4500-5, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 5: Specific rules for steels. 1)1) Published as ASD Prestandard at the date of publication of this standa
22、rd. EN 3971:2006Licensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI4 1 Material designation Steel FE-PL1507 (40CrMoV12) Element C Si Mn P aS Cr Mo Ni SnaV Fe min. 0,35 0,10 0,40 3,00 0,80 0,15 2 Chemical composition % max. 0,43 0,35 0,70 0,015 0,010 3,50 1,10
23、0,30 0,025 0,25 Base 3 Method of melting Consumable electrode remelted 4.1 Form Forging stock 4.2 Method of production 4.3 Limit dimension(s) mm a or D 350 5 Technical specification EN 2157-2 Delivery condition Annealed 6.1 Heat treatment 6.2 Delivery condition code U Use condition Delivery conditio
24、n 7 Heat treatment Characteristics 8.1 Test sample(s) See EN 2157-2. Reforged sample in accordance with EN 2957 or cut from forging stock 8.2 Test piece(s) See EN 2157-2. Heat treated before machining with De 50 mm 8.3 Heat treatment Delivery condition See line 29. 9 Dimensions concerned mm a or D 3
25、50 a or D 350 10 Thickness of cladding on each face % 11 Direction of test piece L or LT 12 Temperature C Ambient 13 Proof stress Rp0,2MPa 1 030 14 Strength RmMPa 1 250 Rm 1 400 15 Elongation A % 10 16 T Reduction of area Z % 45 17 Hardness 277 HB 375 HB 401 18 Shear strength RcMPa 19 Bending k 20 I
26、mpact strength KV 25 J ; Notch direction T b, c21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26 C Elongation at rupture A % 27 Notes (see line 98) a, b, c EN 3971:2006Licensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI5 29
27、Reference heat treatment Hardened and tempered 910 C 950 C / t 1 h / OQ + temper 600 C / t 1 h / OQ or AC d34 Grain size 1 EN 2002-8 2 The “capability clause“ applies 3 A transverse slice selected at a convenient stage of manufacture from a location corresponding to the top of the ingot. 4 Reforged
28、sample in accordance with EN 2957 5 See line 29. 7 G 7 44 External defects See EN 2157-2.50 Cleanliness/inclusion content EN 2157-2.(micro-cleanness) 7 Category 3 51 Macrostructure 1 EN 2003-7 2 1 per ingot 3 A transverse slice selected at a convenient stage of manufacture from a location correspond
29、ing to the top of the ingot. 5 Non heat treated 7 Class 1 Freckles: severity A Class 2 White spots: severity A Class 3 Radial segregation: severity A Class 4 Ring pattern: severity B 61 Internal defects See EN 2157-2.7 a or D (mm) Class 250 4 250 3 95 Marking inspection See EN 2157-2. 96 Dimensional
30、 inspection See EN 2157-2. 98 Notes aP + Sn 0,025 bValue after blank nitriding: 500 C 10 C / t = 24 h. The “capability clause“ applies. cIZOD is optional test and shall achieve 20 ft.lbf minimum. dActual heat treatment temperature and time shall be reported on the inspection and test report. 99 Typi
31、cal use Low alloy general purpose steel; suitable for nitriding EN 3971:2006Licensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI6 100 Product qualification See EN 2043. Qualification programme to be agreed between manufacturer and purchaser. EN 3971:2006License
32、d Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Thu Apr 05 08:11:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 3971:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national bod
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