1、BSI Standards PublicationBS EN 4376:2016Aerospace series Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) solution treated and precipitation treated Bar and section, De 200 mmBS EN 4376:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4376:2016.The UK particip
2、ation in its preparation was entrusted to TechnicalCommittee ACE/61/-/48, Heat Resisting Alloys for AerospacePurposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contrac
3、t. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 86340 0ICS 49.025.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authorit
4、y of theStandards Policy and Strategy Committee on 31 March 2016.Amendments issued since publicationDate Text affectedBS EN 4376:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4376 March 2016 ICS 49.025.01 English Version Aerospace series - Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) so
5、lution treated and precipitation treated - Bar and section, De 200 mm Srie arospatiale - Alliage rsistant chaud NiCr19Fe19Nb5Mo3 (2.4668) mis en solution et prcipt - Barres et profils, De 200 mm Luft- und Raumfahrt - Hochwarmfeste Legierung NiCr19Fe19Nb5Mo3 (2.4668) lsungsgeglht und ausgehrtet - Sta
6、ngen und Profile, De 200 mm This European Standard was approved by CEN on 28 June 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 list
7、s and bibliographical 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
8、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 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yug
9、oslav 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 andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
10、 DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4376:2016 EBS EN 4376:2016EN 4376:2016 (E) 2 Contents Page Europ
11、ean Foreword 3 Introduction 4 1 Scope 5 2 Normative references 5 BS EN 4376:2016EN 4376:2016 (E) 3 European Foreword This document (EN 4376:2016) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in acc
12、ordance 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 ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication
13、of an identical text or by endorsement, at the latest by September 2016, and conflicting national standards shall be withdrawn at the latest by September 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 sha
14、ll 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, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Den
15、mark, Estonia, Finland, 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 4376:20
16、16EN 4376:2016 (E) 4 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 4500-3. BS EN 4376:2016EN 4376:2016 (E) 5 1 Scope
17、 This European Standard specifies the requirements relating to: Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) Solution treated and precipitation treated Bar and section De 200 mm for aerospace applications. 2 Normative references The following documents, in whole or in part, are normatively referen
18、ced 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) applies. EN 2043, Aerospace series Metallic materials General requirements for semi-f
19、inished 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 4500-003, Aerospace series Metallic materials Rules for drafting and presentation of material stan
20、dards Part 003: Specific rules for heat resisting alloys EN 4700-2, Aerospace series Steel and heat resisting alloys Wrought products Technical specification Part 002: Bar and section BS EN 4376:2016EN 4376:2016 (E) 6 1 Material designation Heat resisting alloy NiCr19Fe19Nb5Mo3 (2.4668) 2 Chemical c
21、omposition % Element C Si Mn P S Al B Co Cr Cu min. 0,02 - - - - 0,20 20*)- 17,0 - max. 0,80 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 Method of melting Consumable e
22、lectrode remelted 4.1 Form Bar and section 4.2 Method of production Wrought 4.3 Limit dimension(s) mm De 200 5 Technical specification EN 4700-2 6.1 Delivery condition Solution treated Solution treated and precipitation treated Heat treatment 940 C 980 C/t = 1 h/AC or faster 940 C 980 C/t = 1 h/AC o
23、r faster + = 720 C 10 C/t = 8 h/FC at 50 C per h 60 C per h 1)to = 620 C 10 C/t = 8 h/AC 6.2 Delivery condition code W U 7 Use condition Solution treated and precipitation treated Delivery condition Heat treatment Delivery condition + = 720 C 10 C/t = 8 h/FC at 50 C per h 60 C per h 1)to = 620 C 10
24、C/t = 8 h/AC Characteristics 8.1 Test sample(s) See EN 4700-2 8.2 Test piece(s) See EN 4700-2 8.3 Heat treatment Use condition 9 Dimension concerned mm De 200 BS EN 4376:2016EN 4376:2016 (E) 7 10 Thickness of cladding on each face % 11 Direction of test piece L2)LT2)12 T Temperature C Ambient 650 Am
25、bient 650 13 Proof stress Rp0,2MPa 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 6503)22 Time h tR 23 23 Stress aMPa - 24 Elonga
26、tion a % - 25 Rupture stress RMPa 690 26 Elongation at ruture A % 5 27 Notes (see line 98) *) 1) 2) 3) 30 Microstructure See EN 4700-2 2 The “capability clause” applies 7 Homogeneous structure - No pronounced segregation 34 Grain size See EN 4700-2 7 G 3, 1 G 3 accepted up to 5 % max. area 44 Extern
27、al defects See EN 4700-2 51 Macrostructure See EN 4700-2 BS EN 4376:2016EN 4376:2016 (E) 8 7 No harmful defects 61 Internal defects See EN 4700-2 7 Class 3 95 Marking inspection - See EN 4700-2 96 Dimensional inspection - See EN 4700-2 98 Notes - *)p.p.m. 1)If the rate of furnace cooling is outside
28、this range then the precipitation time at 620 C 10 C shall be increased to 18 h. 2)If test results in LT direction are successfull, L test direction is not requested. 3)Combined notched-unnotched test piece.The rupture shall occur in the unnotched section. 99 Typical use 100 Product qualification Se
29、e EN 2043 Qualification programme to be agreed between manufacturer and purchaser. BS EN 4376:2016EN 4376:2016 (E) 9 This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, inform
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