1、 STD-BSI BS EN 287Li-ENGL 177b = LbZLibb7 0583b3L bT2 W BRITISH STANDARD AEROSPACE SERIES Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated - Classification: 1550 MPa (at ambient temperature) / 315 “C The European Stand
2、ard EN 2874 : 1996 has the status of a British Standard ICs 49.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW _- I BS EN 2874 : 1996 BS EN 2874 : 1996 AmdNo. Committees responsible for this British Standard Date Text affected The preparation of this British standasd wa
3、s entrusted to Technical Committee ACEY12, Aerospace fasteners and fastening systms, upon which the foliowing bodies were represented Association of Electronic, Telecommunications and Business Equipment Industries British Industrial Fasteners Federation Minishy of Defence Society of British Aerospac
4、e Companies 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 December 1996 O BSI 1996 Amendments issued since publication The foliowing BSI references relate to the wo
5、rk on this standard Committee reference ACE02 Draft for comment 92/82017 DC ISBN O 580 26360 9 STD-BSI BS EN 2874-ENGL L77b Lb29bb7 0583b33 975 9 BS EN 2874 : 1996 Contents Committees responsible National foreword page Inside hnt cover 11 . 2 Foreword Specification 1 Scope 2 Normative references 3 R
6、equired characteristics 4 Designation 6 Marking 7 7 6 Technicalspecifidon 7 Oversizebolts O BSI 1996 i STD-BSI BS EN 2874-ENGL L79b W Lb2Llbb7 0583b3Li 301 BS EN 2874 : 1996 National foreword This British Standard has been prepared by Technical Committee ACE42 and is the English hguage version of EN
7、 2874 : 1996 Aerospace series - Bolts, large bihexagod head, close tokmnce normal shunlc, medium mguZ thread, in heat resisting niclce1 base alloy, passivated - Cimsifkation: 1550 Mpa (at ambient temperature) / 31 5 OC, published by the European Committee for Stankdization (CEN). EN 2874 : 1996 was
8、produced as a result of international discussions in which the United Kingdom took an active part. Cross-references Publication referred to IS0 3186 : 1994 IS0 3353 : 1992 IS0 58552 : 1988 IS0 7913 : 1994 EN 2000 : 1991 EN 2424 : 1995 EN 3042 : 1991 Corresponding British Standard BS A 310 : 1995 Bol
9、ts, large bihexagonal had, mal shank, short or medium length MJ threads, rneWic mW, mated or uncoatsd, S-UL classes 1250MPa to 1800 MPa. Dimensions BS 2A 231 : 1993 Rolled threads for bolts. Lead and runout requirements BS 6293 Aerospace. MJ threads Part 2: 1994 Limit diwmsions for bolts and nuts BS
10、 2A 296 : 1995 Bolts and screws, metric. llderames of fomt and position BS EN 2000 : 1992 Quality assurance. EN aerospace products. Approval of the quality system of manzGfactum BS EN 2424 : 1995 Marcing of aerospace products BS EN 3042 : 1992 Quality assurance. EN aerospace products. Qualicath proc
11、edures Compliance with a British Standard does not of itself confer immunity from legal obligations. ii O BSI 1996 STD-BSI BS EN 2874-ENGL L77b lb24bb9 0583635 248 EXJROPEAN STANDARD N0R;ME EUR0PEE”E EXJROP- NORM EN 2874 July 1996 ICs 49.040.20 Descriptors: Aircraft industry, screw, double hexagonal
12、 head screw, nickel aiioy, heat resistant material, specification, dimension, dimensional tolerance, surface treatment, designation, marimg Enghsh version Aerospace series - Bolts, large bihexagonal head, close tolerance nomal shank, medium length thread, in heat resisting nickel base doy, passivate
13、d - Classifmtion: 1550 MPa (at ambient temperature) / 315 “C Srie arospatiale - Vis tte bhexagonale large, tige node tolrance serre, filetage moyen, en alliage rsistant chaud base de nickel, passives - Classication: 1550 Mpa ( temprature ambiante) / 315 “C Luft- und Raumfahrt - Zwlfkant-PaBschrauben
14、 mittlere Gewindeinge, aus hochwarmfester Nickelbasislegierung, passiviert - Klasse: 1550 Mpa (bei Raumtemperatur) / 315 “C This European Standard was approved by CEN on 19960629. CEN members are bound to comply with the CENKENELXC Internal Reguiations which stipulate the conditions for giving this
15、European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographial 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
16、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 Centrai Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, F
17、inland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fllr Normung Central Secretariat: rue de Stassart 36, B-10
18、60 Brussels O 1996 Copynght reserved to CEN members Ref, No. EN 2874 : 1996 E STD.BSI BS EN 2874-ENGL L77b Lb24bb7 0583b3b LB4 Page 2 EN 2874 : 1996 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturem (AECMA). After inquiries and votes carried out
19、in accordance with the niles of this Association, this Standard has received the approval of the National Associations and the fcia 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 publicat
20、ion of an identical text or by endorsement, at the latest by January 1997, and conflicting national standards shall be withdrawn at the latest by January 1997. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement thi
21、s European Standank Austria, Belgium, Denmark, Finland, France, Gennany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. O BSI 1996 STD.BSI BS EN 287q-ENGL 199b Lb2LibbS 0583b37 010 Page 3 EN 2874 : 1996 1 Scope This stan
22、dard specifies the characteristics of bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated. Classification : 1 550 MPa / 315 OC 2, 2 Normative references This European Standard incorporates by dated or undated reference pr
23、ovisions 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 revisions of any of these publications apply to this European Standard only when incorporated in i
24、t by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 3186 Aerospace - Bolts, large bihexagonal head, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes 1 250 MPa to 1 800 MPa - Dimensio
25、ns IS0 3353 Aerospace - Rolled threads for bolts - Lead and runout requirements IS0 4095 IS0 5855-2 IS0 7913 IS0 9154 EN 2000 EN 2424 Fasteners for aerospace construction - Bi-hexagonal wrenching configuration Aerospace - MJ threads - Part 2 : Limit dimensions for bolts and nuts Aerospace - Bolts an
26、d screws, metric - Tolerances of form and position Aerospace - Bolts, strength class 1 550 MPa, MJ threads - Procurement specification 3, Aerospace series - Quality assurance - EN aerospace products - Approval of the quality Aerospace series - Marking of aerospace products - LI - - - I * system of m
27、anufacturers rn I6 EN 2516 Aerospace series - Passivation of corrosion resistant steels and decontamination of nickel based alloys 4, EN 3042 Aerospace series - Quality assurance - EN aerospace products - Qualification procedure EN 3769 Aerospace series - Electrolytic polishing of corrosion resistan
28、t steels and heat resisting alloys 4) EN 4016 TR 3775 Aerospace series - Oversized bolts 5) Aerospace series - Bolts and pins - National materials 13) 1) Minimum tensile strength of the material at ambient temperature 2) Maximum temperature that the bolt can withstand without continuous change in it
29、s original Characteristics, after return to ambient temperature. The maximum temperature is determined by the surface treatment. 3) In preparation at the date of publication of this standard 4) Published as AECMA Standard at the date of publication of this standard 5) Published as AECMA Prestandard
30、at the date of publication of this standard 6) Published as AECMA Technical Report at the date of publication of this standard STD.BS1 BS EN 2874-ENGL 199b lb2Ybb 0583b38 T57 D Page 4 EN 2874 : 1996 3 Required characteristics 3.1 See figure 1 and table 1. Configuration - Dimensions - Masses Dimensio
31、ns and tolerances are : in conformity with IS0 3186, expressed in millimetres and apply after surface treatment. 3.2 IS0 7913 Tolerances of form and position 3.3 Materiais TR 3775 (heat resisting nickel base alloy, strength class 1 550 MPa) 3.4 Surface treatments EN 2516 or EN 3769 on the head (exce
32、pt bearing face), then EN 2516 on all the bolt. In this case, code P shall be used in the designation. Page 5 EN 2874 : 1996 O c Y (u m C O n O .- U c m Q cn 3 STD-BSI BS EN 2874-ENGL 1996 W 1b24bb9 0583b40 b05 Page 6 EN 2874 : 1996 al .- i U 3 E 2 E! 5 5 n al U Q o X al + v1 m OD m - -(Y al O ci VI
33、 5 L N E 44 al E O r n B ci Q - E O o 4 o) E al Q O - 5 - 5 c C O n E! o a o al U O O o) C al al 5 - ir E ui + C c al O .- n m 5 al 02 E .- a a t a ui OI O O - ci a 5 5 a c - O O z P P al n c - m F j. - E O v1 0) u O P C O .- ci L E O C r .- o - c al m .- m. E P o) Y u) 2 - O VI a .- m n 5 al C O U
34、al c m - (i rl - O 2 c .- E e - 5 at M at Description block STD.BSI BS EN 287q-ENGL L99b Lb2Libb 0583bLil 593, W Page 7 EN 2874 : 1996 Identity block EN2874H050040P 4 Designation EXAMPLE : Hole code (see table 2) Diameter code (see table 1) Length code (see table 1) Polishing code (see 3.4) NOTE : I
35、f necessary, the code 19005 shall be placed between the description block and the identity block. Table 2 5 Marking EN 2424, style C plus MJ, indented (see figure 1). 6 Technical specification IS0 9154, except for clauses : - Approval of manufacturers : see EN 2000 ; - Qualification of bolts : see E
36、N 3042. 7 Oversized bolts EN 4016 STD.BS1 BS EN 2874-ENGL L77b Lb24bb9 O583b42 488 BS EN 2874 : 1996 List of references See nationai foreword. O BSI 1996 BS EN 2874 : 1996 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible fo
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