1、BSI Standards PublicationBS EN 2278:2014Aerospace series Steel X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Bars De 150 mmBS EN 2278:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 2278:2014. The UK participation in its preparation was entrusted to Technica
2、lCommittee ACE/61/-/15, Steels for Aerospace Purposes.A list of organizations represented on this committee 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. The Brit
3、ish Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 86329 5ICS 49.025.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 Octob
4、er 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 2278:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2278 October 2014 ICS 49.025.10 English Version Aerospace series - Steel X12CrNiMoV12-3 (1.4933) - 900 MPa Rm 1 100 MPa - Bars - De 150 mm S?ie a?ospa
5、tiale - Acier X12CrNiMoV12-3 (1.4933) - 900 MPa Rm 1 100 MPa - Barres - De 150 mm Luft- und Raumfahrt - Stahl X12CrNiMoV12-3 (1.4933) - 900 MPa Rm 1 100 MPa - Stangen - De 150 mm This European Standard was approved by CEN on 28 June 2014. CEN members are bound to comply with the CEN/CENELEC Internal
6、 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
7、 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 versio
8、ns. 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, Po
9、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitatio
10、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2278:2014 EBS EN 2278:2014EN 2278:2014 (E) 2 Contents Page Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 BS EN 2278:2014EN 2278:2014 (E) 3 Foreword This document (EN 2278:2014) has been prepared
11、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 o
12、f 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 April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is
13、 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 fol
14、lowing 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,
15、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 2278:2014EN 2278:2014 (E) 4 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series
16、is described in EN 4258. This standard has been prepared in accordance with EN 4500-005. BS EN 2278:2014EN 2278:2014 (E) 5 1 Scope This European Standard specifies the requirements relating to: Steel X12CrNiMoV12-3 (1.4933) 900 MPa Rm 1 100 MPa Bars De 150 mm for aerospace applications. 2 Normative
17、references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli
18、es. EN 2043, Aerospace series Metallic materials General requirements for semi-finished product qualification (excluding forgings and castings) EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4500-005, Aerospac
19、e series Metallic materials Rules for drafting and presentation of material standards Part 005: Specific rules for steelsEN 4700-002, Aerospace series Steel and heat resisting alloys Wrought products Technical specification Part 002: Bar and section BS EN 2278:2014EN 2278:2014 (E) 6 1 Material desig
20、nation Steel X12CrNiMoV12-3 (1.4933) 2 Chemical composition % Element C Si Mn P S Cr Mo Ni V N Fe min. 0,08 0,50 11,0 1,50 2,00 0,25 0,020 Base max. 0,13 0,35 0,90 0,030 0,025 12,5 2,00 3,00 0,40 0,040 3 Method of melting Air melted 4.1 Form Bars 4.2 Method of production 4.3 Limit dimension(s) mm De
21、 150 5 Technical specification EN 4700-002 6.1 Delivery condition Softened Hardened and tempered Heat treatment 1 020 C 1 050 C a/ OQ or AC + 640 C 6.2 Delivery condition code A U 7 Use condition Hardened and tempered Delivery condition Heat treatment Delivery condition + 1 020 C 1 050 Ca/ OQ or AC
22、+ 640 C Characteristics 8.1 Test sample(s) See EN 4700-002. 8.2 Test piece(s) See EN 4700-002. 8.3 Heat treatment Softened Hardened and tempered 9 Dimensions concerned mm De 150 10 Thickness of cladding on each face % 11 Direction of test piece L or T b12 T Temperature C Ambient 13 Proof stress Rp0,
23、2 MPa 750 14 Strength RmMPa 900 Rm 1 100 15 Elongation A % 14c16 Reduction of area Z % 40 17 Hardness HBW 311 269 HBW 331 18 Shear strength RcMPa 19 Bending k 20 Impact strength 30 J at 20 C Notch direction T 21 C Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupture stress R MPa 26 E
24、longation at rupture A % 27 Notes (see line 98) a, b, cBS EN 2278:2014EN 2278:2014 (E) 7 34 Grain size See EN 4700-002. 7 G 5 some 3 permitted 44 External defects See EN 4700-002. 1 Visual 50 Cleanliness/inclusion content See EN 4700-002. 7 Category 2 61 Internal defects See EN 4700-002. 7 De 75 mm
25、class 3 75 mm De 150 mm class 2 95 Marking inspection See EN 4700-002. 96 Dimensional inspection See EN 4700-002. 98 Notes aFor optimum corrosion resistance 990 C 1 030 C is recommended. b75 mm De 150 mm may be tested in L or T direction. cA 10 % if material is cold worked. 99 Typical use BS EN 2278
26、:2014EN 2278:2014 (E) 8 100 Product qualification See EN 2043. Qualification programme to be agreed between manufacturer and purchaser. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and serv
27、ices.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 Chiswick High Road London W4 4AL UKAbout usWe bring together business, industry, government, consumers,
28、innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process. Organizations of all sizes and across all sectors choo
29、se standards to help them achieve their goals.Information on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at or contacting our Customer Services team or Knowledge Centre.Buying standardsYou can
30、buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and foreign standards from other Standards Development Organizations, hard copies can be o
31、rdered from our Customer Services team.SubscriptionsOur range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to British Standards Online (BSOL) youll have instant access to over 55,000 British and adopted Europea
32、n and international standards from your desktop. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription format, by becoming a
33、 BSI Subscribing Member. PLUS is an updating service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about becoming a BSI Subscribing Member and the benefits of membership, please visit a M
34、ulti-User Network Licence (MUNL) you are able to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sure your documentation is current. For further information, email .RevisionsOur Britis
35、h Standards and other publications are updated by amendment or revision. We continually improve the quality of our products and services to benefit your business. If you find an inaccuracy or ambiguity within a British Standard or other BSI publication please inform the Knowledge Centre.CopyrightAll
36、 the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (such as the international standardization bodies) and has formally licensed such informa
37、tion to BSI for commercial publication and use. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permissio
38、n from BSI. Details and advice can be obtained from the Copyright & Licensing Department.Useful Contacts:Customer ServicesTel: +44 845 086 9001Email (orders): Email (enquiries): SubscriptionsTel: +44 845 086 9001Email: Knowledge CentreTel: +44 20 8996 7004Email: Copyright & LicensingTel: +44 20 8996 7070Email: NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
