1、BSI Standards PublicationBS ISO 9154:2016Aerospace Bolts, with MJthreads, made of heat-resistantnickel-based alloy, strengthclass 1 550 MPa ProcurementspecificationBS ISO 9154:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 9154:2016. It supersedes BS A 36
2、3:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations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
3、the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 91523 9 ICS 49.030.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British
4、Standard was published under the authority of the Standards Policy and Strategy Committee on 29 February 2016.Amendments/corrigena issued since publicationDate T e x t a f f e c t e dBS ISO 9154:2016 ISO 2016Aerospace Bolts, with MJ threads, made of heat-resistant nickel-based alloy, strength class
5、1 550 MPa Procurement specificationAronautique et espace Vis filetage MJ, en alliage rsistant chaud base de nickel, classe de rsistance 1 550 MPa Spcification dapprovisionnementINTERNATIONAL STANDARDISO9154Second edition2016-02-15Reference numberISO 9154:2016(E)BS ISO 9154:2016ISO 9154:2016(E)ii ISO
6、 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on th
7、e internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 4
8、7copyrightiso.orgwww.iso.orgBS ISO 9154:2016ISO 9154:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Quality assurance 34.1 General . 34.1.1 Approval of manufacturers . 34.1.2 Qualification of bolts 34.1.3 Acceptance of bolts 34.2 Qualification inspection conditions
9、 34.3 Acceptance inspection conditions 44.4 Use of “statistical process control (SPC)” . 45 Requirements 5Annex A (normative) Passivation treatment .20Annex B (informative) Cross-sectional areas and formulae for tensile, tension fatigue and stress rupture loads .21Annex C (informative) Cross-section
10、al areas and formulae for double shear loads .23Bibliography .25 ISO 2016 All rights reserved iiiContents PageBS ISO 9154:2016ISO 9154:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepa
11、ring International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in l
12、iaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC D
13、irectives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility tha
14、t some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent de
15、clarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as informatio
16、n about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems.This second edition ca
17、ncels and replaces the first edition (ISO 9154:1999), which has been technically revised.Annex A forms a normative part of this International Standard. Annexes B and C are for information only.iv ISO 2016 All rights reservedBS ISO 9154:2016INTERNATIONAL STANDARD ISO 9154:2016(E)Aerospace Bolts, with
18、 MJ threads, made of heat-resistant nickel-based alloy, strength class 1 550 MPa Procurement specification1 ScopeThis International Standard specifies the characteristics and quality assurance requirements for MJ threads bolts made of heat-resisting nickel-base alloy, of strength class 1 550 MPa, fo
19、r aerospace construction.It is applicable whenever it is referenced in a definition document.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies
20、. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspectionISO 3452-1, Non-destructive testing Pene
21、trant testing Part 1: General principlesISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1batchquantity of finished products, manufactured using the same processes, from a
22、 single material cast (single heat of alloy) having the same definition document number, diameter, and length code, heat treated together to the same specified condition and produced as one continuous run3.2inspection lotquantity of bolts products from a single production batch (3.1) having the same
23、 definition document number3.3definition documentdocument specifying directly or indirectly all the requirements for productsNote 1 to entry: The definition document may be an International Standard, an in-house standard, or a drawing.3.4crackrupture in the material which may extend in any direction
24、 and which may be intercrystalline or transcrystalline in character3.5seamlongitudinal open surface defect ISO 2016 All rights reserved 1BS ISO 9154:2016ISO 9154:2016(E)3.6lapsurface defect caused by folding over metal fins or sharp corners and then forming them into the surface3.7crevicehollow area
25、 at thread crest3.8inclusionsnon-metallic particles originating from the material manufacturing processNote 1 to entry: These particles may be isolated or arranged in strings.3.9microstructural shearingshear bandingV- or U-shaped rippled grain structure immediately below the thread root or chevron-s
26、haped rippled grain structure within the thread crest3.10sampling planplan according to which one or more samples are taken in order to obtain information and possibly to reach a decision, if possibleNote 1 to entry: In this International Standard, each sampling plan defines the number of bolts to b
27、e inspected as a function of the size of the batch and the acceptance number number of defective items acceptable (Ac)1)3.11simple random samplingsampling 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 chosen3.12crit
28、ical defectdefect 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 item3.13major defectdefect other
29、than critical that is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose3.14minor defectdefect that is not likely to reduce materially the usability of the considered product for its intended purpose or that is a departure from esta
30、blished specifications having little bearing on the effective use or operation of this product3.15limiting qualityLQa quality level which corresponds to a specified and relatively low probability of acceptanceNote 1 to entry: It is the limiting lot quality characteristic that the consumer is willing
31、 to accept with a low probability that a lot of this quality would occur.1) Supplementary information taken from ISO 2859-1.2 ISO 2016 All rights reservedBS ISO 9154:2016ISO 9154:2016(E)Note 2 to entry: For the purposes of this International Standard, the limiting quality quoted in Table 4 correspon
32、ds to a probability of acceptance of 10 %.3.16acceptable quality limitAQLmaximum percent defective (or the maximum number of defects per hundred units) that, for purposes of sampling inspection, can be considered satisfactory as a process averageNote 1 to entry: Variant: Quality level, which in a sa
33、mpling plan, corresponds to a specified but relatively high probability of acceptance.4 Quality assurance4.1 General4.1.1 Approval of manufacturersAll parts which are going to be assembled to a flying aircraft, need to be qualified per airworthiness regulations. The manufacturer of these parts shall
34、 have a quality system that complies with EASA / FAA or an equivalent regulation such as SAE AS 9100 / EN 9100.Quality documentation for parts produced in accordance with this International Standard, shall be maintained for a minimum period of 10 years.The approval of the manufacturer shall be grant
35、ed by the Certification Authorities, or their appointed representative, who may be the prime contractor.4.1.2 Qualification of boltsThe purpose of inspections2)is to verify that the design and manufacturing conditions of a bolt enable it to satisfy the requirements of this International Standard.The
36、 qualification shall be granted by the Certification Authorities in the purchasers country, or their appointed representative, who may be the prime contractor.4.1.3 Acceptance of boltsThe purpose of inspections is to verify, as simply as possible, using a method which is inexpensive, with the uncert
37、ainty inherent in statistical sampling, that the bolts satisfy the requirements of this International Standard.They shall be carried out by the manufacturer or under his responsibility.The manufacturer is responsible for the quality of the bolts manufactured.4.2 Qualification inspection conditionsUn
38、less otherwise specified, the inspection shall be carried out on the following: each type and diameter of bolt; 28 bolts selected from a single inspection lot by simple random sampling.2) In order to simplify the text, the term “inspections” used in this International Standard also refers to “inspec
39、tions and tests”. ISO 2016 All rights reserved 3BS ISO 9154:2016ISO 9154:2016(E)The test programme may possibly be reduced, or the qualification granted, without inspection: Any such decision shall be based on the results obtained on similar types and diameters of bolts, provided that the design and
40、 manufacturing conditions are identical.The inspections shall be repeated on any bolt if the manufacturing conditions have modified.Table 2 indicates the allocation of bolt sample for the inspections.4.3 Acceptance inspection conditionsInspections shall be carried out on each production batch or ins
41、pection lot. Bolts from the batch or lot to be inspected shall be selected by simple random sampling.Each bolt may be submitted to several inspections, provided that none of characteristics to be verified has been previously altered during any of these inspections.The bolts to be subjected to destru
42、ctive inspections may be those on which non-destructive inspections have been carried out.If a more stringent inspection is deemed necessary, all or part of the qualification inspections may be performed during the acceptance inspections. In this case, the number of bolts submitted is the same as th
43、at submitted for qualification inspection.Production batches or inspection lots declared unacceptable after the production acceptance inspections shall be submitted for re-inspection only after all the defective units have been removed and/or defects have been corrected. In this case, the attribute(
44、s) which caused the rejection shall be verified using a sample of twice the normal size with the same number of defective items acceptable.4.4 Use of “statistical process control (SPC)”When a characteristic is obtained by a controlled statistical process, the manufacturer has the possibility, in ord
45、er to declare conformity of the characteristic, of refraining from the final systematic sampling provided for in this International Standard, if he is capable of formally justifying this choice by using ISO/TR 13425 and the standards quoted in it as a basis.This justification will include the follow
46、ing phases: analysis of the key characteristics of the product; analysis of the risks for each implemented process; determination of the parameters and/or characteristics to be respected under SPC; determination of the capabilities of each process; drawing up an inspection plan and integration in th
47、e manufacturing process; drawing up of routes and control charts (ISO 7870-1, ISO 7870-2, ISO 7870-3); use of control charts for data consolidation; determination of the audits to be run and the control to be carried out to ensure reliability of the device.To be usable in production, this process sh
48、all or should be validated beforehand by the qualifying body, either during the qualification phase, or a posteriori according to the case, by analysing the justificatory file and the results of the qualification inspections such as provided for in Clause 5. Such SPC process not applicable to destru
49、ctive tests apart from the measurement of the hydrogen content.4 ISO 2016 All rights reservedBS ISO 9154:2016ISO 9154:2016(E)5 RequirementsThe requirements of this International Standard are given in Table 1 and, unless otherwise specified, they apply to bolts ready for use. The test temperature, unless otherwise specified, shall be the ambient temperature. These requirements complement the requirements of all other standards or specifications referenced in the definition document.Table 1 Requirements and test
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