1、 STD-BSI BS EN 3922-ENGL 1998 1b24bb9 0714018 071 BRITISH STANDARD AEROSPACE SERIES Nickel base alloy NLB41203 (NiCr7Si5B3) - Filler metal for brazing - Borided foil The European Standard EN 3922:1998 has the status of a British Standard ICs 49.025.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERM
2、ITTED BY COPYRIGHT LAW BS EN 3922:1998 STD.BS1 BS EN 3922-ENGL 1998 m Lb24669 OL40L9 TO8 BS EN 3922:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1998 Nat
3、ional foreword This British Standard is the English language version of EN 3922:1998. The UK participation in its preparation was entrusted to Technical Committee ACW61, inspection and testing requirements for aerospace metallic materials, which has the responsibiiity to: - aid enquirers to understa
4、nd the text; - present to the responsible internationaVEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on t
5、his committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitied “International Standards Correspondence Index”,
6、 or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include aii the necessary provisions of a contract. Users of British Smdards are responsible for their correct application. Compliance with a British Standard does not of itself confer
7、immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. Amendments issued since publication I Te* affected Amd. No. Date O BSI 1998 ISBN O 880 30134 6 STD.BS1 BS EN 3922-EN
8、GL 1998 3b24bb9 071Y020 727 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3922 April 1998 ICs 49.025.99 Descriptors: aircraft industry, filler metals, brazing, nickel alloys, strips, designation, chemical composition. delivery condition, characteristics, specifications English version Aerospa
9、ce series - Nickel base alloy NI-B41203 (NiCr7SiSB3) - Filler metal for brazing - Borided foil Srie arospatiale - Alliage base nickel NI-841203 (NiCVSi53) Mtal dapport de brasage - Feuillard bonir Luft- und Raumfahrt - Nkkelbasisiiening NI-841203 (NiCr7S15B3) - Hartlot in Fm von boriefler Folie This
10、 Europsan Standard was epprwed by CEN on 24 Nwember 1997. CEN members am bound to compiy with the CEWCENELEC Internal Regulations which stipulate the conditions for giving thls European Standard the scetus of a national standard without any aletation. Up-to-date lists and bliographlcal references co
11、ncerning 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 (English, French, Gem). A version in any other language made by translation under the responsibiliy o a GEN member into Its own la
12、nguage and notified to the Central Cecreteriat has the same status as the official versions. CEN members are the naonal standards bodies of Austria. Belgium, Czech RepuMk, Denmark, Finiand, France, Gemy, Greece, Iceland, Ireland, Italy, Luxembourg. Netherlands, Norway, Portugal. Spain, Sweden, Switz
13、erland and United Kingdom. EUROPEAN COMMllTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FUR NORMUNG O 1998 CEN AH rights of expo in any fom and by any means resewed worldwide for CEN national Members. Ref. No. EN 3922:1998 E STD.BSI BS EN 3922-ENGL 1998 Lb24bb9 0714021
14、 bbb Page 2 EN 3922:1998 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has successively received the approval of the National Asso
15、ciations and the Official Services of the member countries of AECMA, 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 October 1998, and conflicting national standa
16、rds shall be withdrawn at the latest by October 1998. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,
17、 Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. - - STD-BSI BS EN 3922-ENGL 1498 = Lb24bb9 0734022 5T2 = Page 3 EN 3922: 1990 O Introduction This standard is part of the series of EN metallic material standards for aerospace applicat
18、ions. lhe general organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-6. 1 Scope This standard specifies the requirements relating to: Nickel base alloy Nl-641 203 (NiCr7Si583) Filler metal for brazing Borided foil for aerospace application
19、s. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. 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 revi
20、sions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2043 Aerospace series - Metallic materials - General requirements for semi-finished product q
21、ualification (excluding forgings and castings) 1) EN 3875 Aerospace series - Metallic materials - Filler metal for brazing - Technical specification 1) EN 4258 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use 1) EN 45
22、00-6 Aerospace series - Metallic materiais - Rules for drafting and presentation of material standards - Part 6: Specific rules for filler metals for brazing 1) 1) Published as AECMA Prestandard at the date of publication of this standard - STD.BS1 BS EN 3922-ENGL 1998 lb24bb9 0714023 439 1 Material
23、 designation 2 Chemical Element composition % min. rnax. 3 Method of melting 4.1 FOmi 4.2 Method of production 4.3 Limit dimension(s) mm - 5 Technical SpecifiCatiOn Nickel base braze alloy NI-641203 (NiCr7Si5B3) Others Ni Total C Si P S 8 Cr Fe AI Co Se Ti Zr - - - - - - 2,75 6,O 2.5 - Base - 4.0 -
24、0.06 5.0 0.02 0,02 3.50 8.0 35 0,05 0.10 50) 0.05 0,05 0.05 Air or inert gas or vacuum melted, without boron Bonded foil Cold or hot rolled and convened to braze alloy by diffusion of boron into the surfaces - EN 3875 Delivery condition Heat treatment Delivery condion code Use codion Heat treatment
25、Characteristics As manufactured - U Delivery condition - 8.1 Test sample(s) 8.2 Test pmWs) 8.3 Heattreatment - - - lil 9 ilo 11 - 1131 Dimensiunsconcemed mm - Thi nessofdaddingon % - Direction of test piece - sagface w Temperature e C Proof stress MPa Strength R, MPa Elongation A% 161 - - - - - 17 H
26、ardness - 18 Shearstrength I & IMPa - 19 Bending k- I 20 1 Impact strength 1 27 Notes (see line 96) 1 Page 5 EN 3922: 1998 44 1 -mal dew 53 Thermal analysis (Differential thermal analysis) Marking inspection Dimensional inspection Notes Typical use See EN 3875 Liquidus : 1 O00 C Solidus : 970 C See
27、EN 3875 See EN 3875 See EN 3875 See EN 3875 *) p.p.m. Joining nickel and cobalt base alloys. Page 6 EN 3922:1998 Wud qualification Ses EN 2043 IuaWation programme to be agreed between manufacturer and purchassr. BS EN 3922:1998 BSI 389 Chiswick High Road London w4 4AL STD=BSI BS EN 3922-ENGL 1998 W
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