1、BRITISH STANDARDBS EN 3302:2007Aerospace series Bolts in heat resisting steel FE-PM1708 (FV535) Classification: 1 000 MPa/550 C Technical specificationICS 49.030.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g4
2、8g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3302:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 60321 1National forewordThis British Standard is the UK implementation of EN
3、 3302:2007.The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.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 p
4、rovisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3302 December 2007 ICS 49.030.20
5、 English Version Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 C - Technical specification Srie arospatiale - Vis en acier rsistant chaud FE-PM1708 (FV535) - Classification: 1 000 MPa/550 C - Spcification technique Luft- und Raumfahrt - Schrauben
6、aus hochwarmfestem Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 C - Technische Lieferbedingungen This European Standard was approved by CEN on 5 November 2007. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
7、d the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
8、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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Cze
9、ch Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
10、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3302:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references
11、 4 3 Terms and definitions .5 4 Certification and quality assurance.6 5 Technical requirements and test methods .8 EN 3302:20073 Foreword This document (EN 3302:2007) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and vot
12、es 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 ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, e
13、ither by publication of an identical text or by endorsement, at the latest by June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or
14、CENELEC shall 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, Cyprus, Czech Republic, D
15、enmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3302:20074 1 Scope This standard specifies the technica
16、l, qualification and quality assurance requirements for bolts in material FE-PM1708 (FV535) of tensile strength class 1 000 MPa at room temperature, maximum test temperature of material 550 C. Primarily for aerospace applications it is applicable to such bolts when referenced on the product standard
17、 or drawing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2859-1, S
18、ampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. ISO 3452, Non-destructive testing Penetrant inspection General principles. ISO 3534:1977, Statistics Vocabulary and symbols. ISO 4288, Geometrical Product Spe
19、cifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture. ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T). ISO 9000, Quality management systems Fundamentals and vocabulary. EN 2493
20、1), Heat resisting steel FE-PM38 1 000 MPa Rm 1 140 MPa Bars Aerospace series. 2)EN 4244, Aerospace series Heat resisting alloy FE-PM1708 Vacuum arc remelted Hardened and tempered Bar a or D 200 mm 1 000 MPa Rm 1 140 MPa. 3)EN 4245, Aerospace series Heat resisting alloy FE-PM1708 Vacuum arc remelted
21、 As forged Forging stock De 300 mm. 3)EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:1994). EN 9133, Aerospace series Quality
22、management systems Qualification procedure for aerospace standard parts. TR 3040-1, Aerospace series Quality Assurance EN aerospace products Part 1: List of approved manufacturers. 4)1) Inactive for new designation, see EN 4244 and EN 4245. 2) Published as ASD Standard at the date of publication of
23、this standard. 3) Published as ASD Prestandard at the date of publication of this standard. 4) Published as ASD Technical Report at the date of publication of this standard. EN 3302:20075 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 produc
24、tion batch quantity of finished parts fabricated by the same process from a single material cast (single heat of alloy), having the same basic part number and diameter, heat treated together to the same specified condition and produced as one continuous run 3.2 inspection lot quantity of parts from
25、a single production batch of the same part number which completely defines the part 3.3 Surface discontinuities 3.3.1 crack rupture in the material which may extend in any direction and which may be intercrystalline or transcrystallyne in character 3.3.2 seam longitudinal surface defect in the form
26、of an unwelded open fold in the material 3.3.3 lap surface defect caused by folding over metal fins or sharp corners and then rolling or forging them into the surface 3.3.4 inclusion non-metallic particles originating from the material making process. They may exist as discrete particles or strings
27、of particles extending longitudinally 3.4 test temperature ambient temperature, unless otherwise specified 3.5 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 ISO 3534, see def
28、inition 3.6 critical defect 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 ISO 3534,
29、see definition 3.7 major defect a defect other than critical, that is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose ISO 3534, see definition EN 3302:20076 3.8 minor defect a defect that is not likely to reduce materially the us
30、ability of the considered product for its intended purpose, or that is a departure from established specification having little bearing on the effective use or operation of this product ISO 3534, see definition 3.9 sampling plan a plan according to which one or more samples are taken in order to obt
31、ain information and possibly to reach a decision ISO 3534, see definition 3.10 limiting quality (LQ10) in a sampling plan, a quality limit which corresponds to a specified and relatively low probability of acceptance in this case 10 % probability of acceptance. It is the limiting lot quality charact
32、eristic that a lot of this quality would occur. When expressed as a per cent defective, it may be referred to as a lot tolerance per cent defective. ISO 3534, see definition 3.11 acceptance quality limit (AQL) a quality limit which in a sampling plan corresponds to a specified but relatively high pr
33、obability of acceptance It is the maximum per cent defective (or the maximum number of defects per hundred units) that, for purposes of sampling inspection, can be considered satisfactory as a process average. ISO 3534, see definition 3.12 finished bolt a bolt ready for use, inclusive of any possibl
34、e treatments and/or surface coatings, as specified in the dimensional standard or definition document 3.13 definition document document specifying all the requirements for bolts i.e. metallurgical; geometrical and dimensional; functional (strength and temperature classes). 4 Certification and qualit
35、y assurance 4.1 Qualification 4.1.1 Purpose The purpose of qualification tests is to ensure that the bolt design and bolt manufacturing conditions allow the bolt to comply with the requirements of this standard. EN 3302:20077 4.1.2 Conditions The qualification tests summarized in Table 3 shall be pe
36、rformed on each type and diameter of bolt. Proposed changes in manufacturing source or procedure shall be subject to the requirements of EN 9133. 25 bolts selected from a single inspection lot by simple random sampling shall be subjected to the qualification tests. The number of bolts to be subjecte
37、d to each test as well as the method(s) to be used is specified in Table 1. The tests to be applied to each bolt are shown in Table 4. The test programme may possibly be reduced, this decision will be based on the comparison of results obtained from parts of similar design, size and manufacturing co
38、nditions. All or part of these tests may also be performed for production acceptance, when a reinforced inspection seems to be necessary, or to survey bolts that have not proved satisfactory in use. In that case, the sample to be subjected to these tests is the same as that used for production accep
39、tance tests. 4.1.3 Qualification test requirements and procedures The qualification test requirements and procedures shall be to the requirements of EN 9133. 4.1.4 Qualified manufacturers A list of qualified manufacturers for specific standard parts is listed in TR 3040-1. 4.2 Acceptance 4.2.1 Purpo
40、se The purpose of acceptance 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 bolts constituting the batch satisfy the requirements of this standard. 4.2.2 Conditions Acceptance tests are su
41、mmarized in Table 3. They shall be performed on each batch. Table 1 specifies, the test method and sampling plan to be used for each test. Bolts from the batch to be tested shall be selected by simple random sampling. Each bolt may be submitted to several tests. The bolts to be subjected to destruct
42、ive tests may be those on which non-destructive tests have been performed. 4.3 Quality system certification 4.3.1 Purpose The purpose of quality system certification is to ensure that the manufacturer has demonstrated the acceptability of his quality system and his ability for continuing production
43、of parts to this standard, to the required limit of quality. EN 3302:20078 4.3.2 Requirements and procedure The requirements and procedures for quality system certification shall be to the requirements of ISO 9000 and EN 9100. 4.4 Responsibility for inspection and tests The manufacturer is responsib
44、le for the performance of all inspection and test requirements as specified herein. Each manufacturer will use their own or exceptionally, any other facilities approved in accordance with 4.1 and 4.2 for the implementation of these inspection and test requirements. 4.5 Inspection and test report A t
45、est report showing actual numerical values shall be provided at the purchasers option as part of the terms of the purchase order. 5 Technical requirements and test methods Table 1 Technical requirements and test methods Clause Characteristic Requirement Inspection and test method Q/A aSample size 5.
46、1 Material Material FE-PM1708 to specification EN 2493 supplied by an approved source: shall be used for the manufacture of bolts to this standard. As stated in the material specification. Q 25 5.2 Dimensions, tolerances of form and position, threads and quality A Tables 6 and 7 5.2.1 Dimensions The
47、 dimensions of the finished bolts shall conform to the product standard or definition document. All dimensions shall be controlled by an approved system of gauging. 5.2.2 Tolerances of form and position Tolerances of form and position shall conform to the product standard or definition document. Tol
48、erances of form and position shall be controlled by an approved system of gauging. 5.2.3 Threads Threads shall conform to the product standard or definition document. Threads shall be gauged by an approved system of gauging. 5.3 Manufacturing 5.3.1 Forging The heads of the bolts shall be formed by h
49、ot or cold forging. If hot forged the forging temperature shall not exceed 1 170 C. The method of forging shall be approved. The heating equipment for forging shall be of a type which ensures a consistent temperature throughout the batch. continued EN 3302:20079 Table 1 (continued) Clause Characteristic Requirement Inspection and test method Q/A aSample size 5.3.2 Heat treatment The heat treatment medium or atmosphere shall not cause any surface contamination exc
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