1、BRITISH STANDARD AEROSPACE SERIES BS EN 2583:1997 Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel 718) Classification: 1275 MPa (at ambient temperature)/650C Technical specification The European Standard EN 2583:1997 has the status of a British Standard ICS 49.040.20BSEN258
2、3:1997 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 intoeffect on 15June1997 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference ACE/12
3、 Draft for comment 88/76217 DC ISBN 0 580 26691 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, upon which the following bodies were represented: British Industrial Fas
4、teners Federation Ministry of Defence Society of British Aerospace Companies Amendments issued since publication Amd. No. Date CommentsBSEN2583:1997 BSI 03-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions
5、3 4 Quality assurance 4 5 Requirements 4 Annex A (normative) Passivation treatment of bolts 19 Figure 1 15 Figure 2 16 Figure 3 16 Figure 4 17 Figure 5 17 Figure 6 18 Figure 7 18 Figure 8 18 Table 1 Technical requirements and test methods 5 Table 2 Allocation of qualification testing requirements 11
6、 Table 3 Classification of defects 12 Table 4 Sampling plans for visual inspections and dimensional characteristics 12 Table 5 Limits of cut flow line 12 Table 6 Limits of surface discontinuities 13 Table 7 Minimum tensile, tension fatigue and stress rupture loads 13 Table 8 Sampling plans for the i
7、nspection of mechanical and metallurgical characteristics 13 Table 9 Variable sampling for tensile test 14 Table 10 Thread discontinuities 15 List of references Inside back coverBSEN2583:1997 ii BSI 03-1999 National foreword This British Standard has been prepared by Technical Committee ACE/12 and i
8、sthe English language version of EN2583:1997 Aerospace series Bolts, MJthread, in heat resisting nickel base alloy NI-PH2601 (Iconel718) Classification:1275 MPa (at ambient temperature)/650C Technical specification, published by the European Committee for Standardization (CEN). EN 2583:1997 was prod
9、uced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does
10、not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard EN 3042:1991 BS EN 3042:1992 Quality assurance. EN aerospace products. Qualification procedure BS 6001 Sampling procedures for inspection by attributes ISO 2859-1:1989 Part 1
11、1991 Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection BS 6293 Aerospace. MJ threads ISO 5585-2:1988 Part 2:1994 Limit dimensions for bolts and nuts ISO 7961:1994 BS A 305:1994 Bolts, test methods ISO 9227:1990 BS 7479:1991 Method for salt spray co
12、rrosion tests in artificial atmospheres Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 20, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated.
13、 This will be indicated in the amendment table on theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2583 January 1997 ICS 49.040.20 Descriptors: Aircraft industry, screw, nickel alloy, heat resistant material, classification, quality assurance, specification, characteristic,
14、 inspection, test English version Aerospace series Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel718) Classification: 1275 MPa (at ambient temperature)/650C Technical specification Srie arospatiale Vis filetage MJ, en alliage rsistant chaud base de nickel NI-PH2601 (Incone
15、l 718) Classification: 1275 MPa ( temprature ambiante)/650C Spcification technique Luft und Raumfahrt Schrauben, MJ-Gewinde, aus hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718) Klasse: 1275 MPa (bei Raumtemperatur)/650C Technische Lieferbedingungen This European Standard was approved by
16、CEN on 1996-10-27. 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 bibliographical references concerning such national standards m
17、ay be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist 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
18、tral Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European
19、 Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 2583:1997 EEN2583:1997 2 BSI 03-1999 Foreword This European Standard has been prepared by the Europ
20、ean Association of Aerospace Manufacturers (AECMA). After inquiries 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 of AECMA, prior to its presentation to CE
21、N. 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 July1997, and conflicting national standards shall be withdrawn at the latest by July1997. According to the CEN/CENELEC Internal Regulations, the
22、 national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.EN2583:1997 B
23、SI 03-1999 3 1 Scope This standard specifies the characteristics, qualification and acceptance requirements for bolts with MJ threads in NI-PH2601. Classification: 1275 MPa 1) /650C 2) It is applicable whenever referenced. 2 Normative references This European Standard incorporates by dated or undate
24、d 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 revisions of any of these publications apply to this European Standard only when inc
25、orporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection. ISO 3452, Non-destructi
26、ve testing Penetrant inspection General principles. ISO 3534:1977, Statistics Vocabulary and symbols. ISO 4288, Rules and procedures for the measurement of surface roughness using stylus instruments. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 6508, Metallic mat
27、erials Hardness test Rockwell test (scales A B C D E F G H K). ISO 6892, Metallic materials Tensile testing. ISO 7961, Aerospace Bolts Test methods. ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests. EN 3042, Aerospace series Quality assurance EN aerospace products Qualification p
28、rocedure. ASTM E 112-88, Standard Test Methods for Determining Average Grain Size 3) . 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 batch quantity of finished bolts, of the same type and same diameter, produced from a material obtained from the same melt, man
29、ufactured in the course of the same production cycle, following the same manufacturing route and having undergone all the relevant heat treatments and surface treatments 3.2 Surface discontinuities 3.2.1 crack rupture in the material which may extend in any direction and which may be intercrystallin
30、e or transcrystalline in character 3.2.2 seam open surface defect 3.2.3 lap surface defect caused by folding over metal fins or sharp corners and then compressing them into the surface 3.2.4 inclusions non-metallic particles originating from the material manufacturing process. These particles may be
31、 isolated or arranged in strings 3.3 test temperature ambient temperature, unless otherwise specified 3.4 simple random sampling the taking of n items from a population of N items in such a way that all possible combinations of n items have the same probability of being chosen 4) 3.5 critical defect
32、 a defect that, according to judgement and experience, is likely to result in hazardous or unsafe conditions for individuals using, maintaining, or depending upon the considered product, or that is likely to prevent performance of the function of a major end item 4) 1) Minimum tensile strength of th
33、e material at ambient temperature 2) Maximum test temperature of the parts 3) Published by: American Society for Testing and Materials (ASTM),1916 Race Street, Philadephia, PA19103-1187, USA 4) Definition taken from ISO3534EN2583:1997 4 BSI 03-1999 3.6 major defect a defect, other than critical, tha
34、t is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose 5) 3.7 minor defect a defect that is not likely to reduce materially the usability of the considered product for its intended purpose, or that is a departure from established s
35、pecification having little bearing on the effective use or operation of this product 5) 3.8 sampling plan a plan according to which one or more samples are taken in order to obtain information and possibly to reach a decision 5) 3.9 limiting quality in a sampling plan, the quality level which corres
36、ponds to the specified10% probability of acceptance 3.10 acceptable quality level (AQL) a quality level which in a sampling plan corresponds to a specified but relatively high probability of acceptance it is the maximum per cent defective (or the maximum number of defects per hundred units) that, fo
37、r purposes of sampling inspection can be considered satisfactory as a process average 5) 3.11 finished bolt a bolt ready for use, inclusive of any possible treatments and/or surface coatings, as specified in the product standard or definition document 3.12 definition document document specifying all
38、 the requirements for finished bolts 4 Quality assurance 4.1 Qualification EN 3042 Qualification inspections and tests (requirements, methods, numbers of bolts) are specified inTable 1. They shall be carried out on: each type and diameter of bolt; 25 bolts selected from a single batch by simple rand
39、om sampling. The test programme may possibly be reduced, or the qualification be granted without inspection or testing: any such decision shall be based on the results obtained on similar types and diameters of bolts provided that the design and manufacturing conditions are identical. Table 2 indica
40、tes the allocation of bolt samples for the inspections and tests. 4.2 Acceptance 4.2.1 Purpose The purpose of acceptance inspections and tests is to check, as simply as possible, by a method representative of actual use conditions, with the uncertainty inherent to statistical sampling, that the bolt
41、s constituting the batch satisfy the requirements of this standard. 4.2.2 Conditions Acceptance inspections and tests (requirements, methods, numbers of bolts) are specified inTable 1. They shall be carried out on each batch. Bolts from the batch to be tested shall be selected by simple random sampl
42、ing. Each bolt may be submitted to several inspections or tests. If a more stringent inspection is deemed necessary, all or part of the qualification inspections and tests may be performed during the acceptance inspection and testing. In this case, the number of bolts submitted to these inspections
43、and tests is the same as that submitted for qualification inspection and tests. 4.2.3 Responsibility Acceptance inspections and tests shall be carried out by the manufacturer, or under his responsibility. 4.2.4 Inspection and test report A test report showing actual numerical values shall be provide
44、d if specified in the purchase order. 5 Requirements See Table 1. 5) Definition taken from ISO 3534EN2583:1997 BSI 03-1999 5 Table 1 Technical requirements and test methods Clause Characteristic Requirement Inspection and test method Q/A a Sample size 5.1 Material In accordance with the product stan
45、dard or definition document Chemical analysis or certificate of compliance issued by the manufacturer of the semi-finished product Q A 5.2 Dimensions, tolerances and tolerances of form and position In accordance with the product standard or definition document Standard gauging Q 25 A Table 3 and Tab
46、le 4 5.3 Manufacturing 5.3.1 Forging The head of the bolts shall be formed by hot or cold forging. If hot forged, the forging temperature shall not exceed1150C and they shall be air cooled. The equipment shall ensure a uniform temperature throughout the batch. The method of forging shall be indicate
47、d. Q 5.3.2 Heat treatment The heat treatment medium or atmosphere shall not cause any surface contamination except as permitted by5.5.6. Calibration of the heat treatment equipment shall be confirmed. Q Any scale which will not be removed by subsequent machining shall be removed by abrasive blasting
48、 with an appropriate equipment. Visual examination The headed blanks shall be solution treated at a temperature of930C to1010C, held at the selected temperature within 15C for not less than1h and air cooled or faster. The headed and solution treated blanks shall be precipitation heat treated at(720
49、5)C, held at temperature for8h 15min, furnace cooled at(55 5)C per hour to(620 5)C, held at620C for8h 15min, followed by air cooling or faster. Examination of the heat treatment specification Instead of the55C per hour cooling rate to620C, parts may be furnace cooled at any rate provided the time at620C is adjusted to give a total precipitation time of18h min continuedEN2583:1997 6 BSI 03-1999 Table 1 Technical requirements and test m
