1、BSI Standards PublicationBS EN 4377:2015Aerospace series Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) Non heat treated Forging stock a or D 300 mmBS EN 4377:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4377:2015.The UK participation in its preparation
2、was entrusted to Technical Committee ACE/61/-/48, Heat Resisting Alloys 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 responsi
3、ble for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 87602 8 ICS 49.025.01 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standar
4、ds Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate Text affectedBS EN 4377:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 4377 September 2015 ICS 49.025.01 English Version Aerospace series - Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668)
5、 - Non heat treated - Forging stock - a or D 300 mm Srie arospatiale - Alliage rsistant chaud NiCr19Fe19Nb5Mo3 (2.4668) - Non trait - Produits destins la forge - a ou D 300 mm Luft- und Raumfahrt - Hochwarmfeste Legierung NiCr19Fe19Nb5Mo3 (2.4668) - Schmiedezustand - Schmiedevormaterial - a oder D 3
6、00 mm This European Standard was approved by CEN on 8 November 2014. 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 bibliographic
7、al references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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
8、of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of M
9、acedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION E
10、UROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4377:2015 EBS EN 4377:2015EN 4377:2015 (E) 2 Contents Page European foreword 3 Intr
11、oduction 4 1 Scope 4 2 Normative references 4 BS EN 4377:2015EN 4377:2015 (E) 3 European foreword This document (EN 4377:2015) 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 ru
12、les of this Association, this European Standard has received the 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 iden
13、tical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. 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 res
14、ponsible 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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
15、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4377:2015EN 4377:2015 (E)
16、 4 Introduction This European 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 European Standard has been prepared in accordance with EN 4500-003. 1 Scope This European Standard specifie
17、s the requirements relating to: Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) Non heat treated Forging stock a or D 300 mm for aerospace applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its appli
18、cation. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2043, Aerospace series Metallic materials General requirements for semi-finished product qualification (excluding forgings and ca
19、stings) prEN 2860-02, Aerospace series Heat resisting alloys Forging stock and forgings Technical specification Part 2: Forging stock 1)EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4500-003, Aerospace series
20、 Metallic materials Rules for drafting and presentation of material standards Part 003: Specific rules for heat resisting alloys 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). BS EN 4377:2015EN 4377:2015 (E) 5 1 Material designation Heat resistin
21、g alloy NiCr19Fe19Nb5Mo3 (2.4668) 2 Chemical composition %Element C Si Mn P S Al B Co Cr Cu min. 0,02 0,20 20 *) 17,0 max. 0,080 0,35 0,35 0,015 0,015 0,80 60 *)1,00 21,0 0,30 Element Fe Mg Mo Nb+Ta Ti Ag Bi Ca Pb Ni min. 16,5 2,80 4,80 0,70 Base max. 20,5 0,010 3,30 5,50 1,15 5 *)1 *)0,010 5 *)3 Me
22、thod of melting Consumable electrode remelted 4.1 Form Forging stock 4.2 Method of production 4.3 Limit dimension(s) mm a or D 300 5 Technical specification prEN 2860-02 6.1 Delivery condition Non heat treated Heat treatment 6.2 Delivery condition code U 7 Use condition Delivery condition Heat treat
23、ment Characteristics 8.1 Test sample(s) See prEN 2860-02 8.2 Test piece(s) See prEN 2860-02 8.3 Heat treatment See line 29 9 Dimensions concerned mm De 200 10 Thickness of cladding on each face % 11 Direction of test piece L 1)LT 1)12 T Temperature C Ambient 650 Ambient 650 13 Proof stress Rp0,2MPa
24、1 035 860 1 035 860 14 Strength RmMPa 1 270 1 000 1 240 960 15 Elongation A % 10 9 10 9 16 Reduction of area Z % 15 15 8 8 17 Hardness 331 HB 18 Shear strength Rc MPa 19 Bending k 20 Impact strength 21 C Temperature C 650 2)22 Time h tR 23 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 690
25、26 Elongation at ruptureA % 5 27 Notes (see line 98) *)1)2)BS EN 4377:2015EN 4377:2015 (E) 6 29 Reference heat treatment Solution treated and precipitation treated 940 C 980 C/t = 1/AC or faster + =720 C 10 C/t = 8 h/FC at 50 C per h 60 C per h 3) to = 620 C 10 C/t = 8 h/AC 44 External defects See p
26、rEN 2860-02. 51 Macrostructure See prEN 2860-02. 7 No harmful defects.61 Internal defects See prEN 2860-02. 7 Class 3 95 Marking inspection See prEN 2860-02. 96 Dimensional inspection See prEN 2860-02. 98 Notes *)p.p.m. 1)If test results in LT direction are successful, L test direction is not reques
27、ted. 2)Combined notched-unnotched test piece. 3)If the rate of furnace cooling is outside this range then the precipitation time at 620 C 10 C shall be increased to 18 h. 99 Typical use BS EN 4377:2015EN 4377:2015 (E) 7 100 Product qualification See EN 2043. Qualification programme to be agreed betw
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