1、AECMA STANDARDNORME AECMAAECMA NORMprEN 4700-4Edition P 1April 2002PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN)Gulledelle 94 B-1200 BRUXELLES Tel. (+32) 2 775 8110 Fax. (+32) 2 775 8111ENGLISH VERSIONAerospace seriesSteel and heat resisting alloysWroug
2、ht productsTechnical specificationPart 4: WireSrie arospatialeAcier et alliages rsistant chaudProduits corroysSpcification techniquePartie 4: FilsLuft- und RaumfahrtStahl und Hochwarmfesten LegierungenUmgeformte ErzeugnisseTechnische LieferbedingungenTeil 4: DrhteThis “Aerospace Series“ Prestandard
3、has been drawn up under the responsibility of AECMA-STAN (TheEuropean Association of Aerospace Industries - Standardization). It is published on green paper for theneeds of the European Aerospace Industry. It has been technically approved by the experts of theconcerned Domain following member commen
4、ts.Subsequent to the publication of this Prestandard, the technical content shall not be changed to anextent that interchangeability is affected, physically or functionally, without re-identification of thestandard.After examination and review by users and formal agreement of AECMA-STAN it will be s
5、ubmitted as adraft European Standard to CEN (European Committee for Standardization) for formal vote.Nota - Extra copies can be supplied by B.N.A.E. Technopolis 54 - 199, rue Jean-Jacques Rousseau 92138 ISSY-LES-MOULINEAUX CEDEXEdition approved for publication2002-04-30Comments should be sent within
6、 six monthsafter the date of publication toAECMA-STANGulledelle 94B-1200 BRUXELLESMaterial DomainMr Evetts aecma 2002Page 2prEN 4700-4: 2002ContentsPage0 Introduction. 31 Scope 32 Normative references. 33 Definitions. 44 Wording of order . 55 Health and safety 56 Technical requirements. 5Table 1 Tec
7、hnical requirements for lines 1 to 29, where appropriate. 8Table 2 Technical requirements for lines 30 onwards, where appropriate . 16Page 3prEN 4700-4: 20020 IntroductionThis standard is part of the series of EN metallic material standards for aerospace applications. The generalorganisation of this
8、 series is described in EN 4258.1 ScopeThis standard defines the requirements for the ordering, manufacture, testing, inspection and delivery ofsteel and heat resisting alloy wire. It shall be applied when referred to and in conjunction with the ENmaterial standard unless otherwise specified on the
9、drawing, order or inspection schedule.2 Normative referencesThis 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 listedhereafter. For dated references,
10、subsequent amendments to or revisions of any of these publications applyto this European Standard only when incorporated in it by amendment or revision. For undated referencesthe latest edition of the publication referred to applies.ISO 3651-1 Determination of resistance to intergranular corrosion o
11、f stainless steels Part 1: Austeniticand ferritic-austenitic (duplex) stainless steels Corrosion test in nitric acid medium bymeasurement of loss in mass (Huey test)ISO 3651-2 Determination of resistance to intergranular corrosion of stainless steels Part 2: Ferritic,austenitic and ferritic-austenit
12、ic (duplex) stainless steels Corrosion test in mediacontaining sulfuric acidISO 3887 Steel, non-alloy and lowalloy Determination of depth of decarburizationISO 7800 Metallic materials Wire Simple torsion testISO 7801 Metallic materials Wire Reverse bend testISO 7802 Metallic materials Wire Wrapping
13、testISO 9649 Metallic materials Wire Reverse torsion testEN 2000 Aerospace series Quality assurance EN aerospace products Approval of the qualitysystems of manufacturersEN 2002-1 Aerospace series Test methods for metallic materials Part 1: Tensile testing atambient temperature 1)EN 2002-2 Aerospace
14、series Test methods for metallic materials Part 2: Tensile testing atelevated temperature 1)EN 2002-5 Aerospace series Test methods for metallic materials Part 5: Uninterrupted creep andstress-rupture testing 1)EN 2002-7 Aerospace series Metallic materials Test methods Part 7: Hardness test 1)EN 200
15、2-8 Aerospace series Metallic materials Test methods Part 8: Micrographic determinationof grain size 1)EN 2002-16 Aerospace series Metallic materials Test methods Part 16: Non-destructive testing Penetrant testing 1)EN 2003-7 Aerospace series Steel Test methods Part 7: Macrographic test 1)Page 4prEN
16、 4700-4: 2002EN 2032-1 Aerospace series Metallic materials Part 1: Designation 1)EN 2032-2 Aerospace series Metallic materials Part 2: Coding of metallurgical condition indelivery conditionEN 2078 Aerospace series Metallic materials Manufacturing schedule Inspection schedule Inspection and test repo
17、rt Description and rules for useEN 2857-1 Aerospace series Metallic materials Test methods for ferromagnetic materials Non-destructive testing Magnetic particle inspection Part 1: General requirements 2)EN 2857-2 Aerospace series Metallic materials Test methods for ferromagnetic materials Non-destru
18、ctive testing Magnetic particle inspection Part 2: Inspection requirements 2)EN 2950 Aerospace series Metallic materials Test method for wrought heat resisting alloysemi-finished products and parts Conditions for macrographic and micrographicexamination Atlas of structures and defects 2)EN 2951 Aero
19、space series Metallic materials Test method Micrographic determination ofcontent of non-metallic inclusions 1)EN 3042 Aerospace series Quality assurance EN aerospace products QualificationprocedureEN 4258 Aerospace series Metallic materials General organization of standardization Linksbetween types
20、of EN standards and their useEN 4259 Aerospace series Metallic materials Definition of general terms 1)EN 4268 Aerospace series Metallic materials Heat treatment facilities General requirements 2)EN 4436 Aerospace series Steel Test methods Determination of ferrite content 1)EN 10027-1 Designation sy
21、stems for steel Part 1: Steel names, principal symbolsEN 10079 Definition of steel productsTR 2410 Aerospace series Metallic materials Relationship between dimensional standards andmaterial standards 3)3 DefinitionsGeneral definition, see EN 4259.For definition specific to steel, see EN 10079.3.1bat
22、chAs defined in EN 4259 with the following addition: for heat treatment using a continuous furnace, a continuous run of less than or equal to 8 hours maybe considered as the same heat treatment charge. Continuous heat treatment can be an option.1) Published as AECMA Prestandard at the date of public
23、ation of this standard2) In preparation at the date of publication of this standard3) Published as an AECMA Technical Report at the date of publication of this standardPage 5prEN 4700-4: 20024 Wording of orderThe order shall clearly indicate: quantities to be supplied; dates of delivery; material st
24、andard number; delivery condition and metallurgical code of products; dimensions and tolerances or reference to an appropriate dimensional standard; product designation, when required; forwarding address; nature and type of packing, if required; surface protection if appropriate; definition and freq
25、uency of any special tests and their retest procedures, if required.5 Health and safetyThe product in the delivery condition shall fulfil the current health and safety laws of the area of the countrywhere it is to be delivered.A product safety data sheet shall be available.6 Technical requirements6.
26、1 GeneralThe product shall be manufactured in accordance with the requirements of the relevant material standardand the applicable requirements of this specification. A manufacturing schedule shall be established andapplied in accordance with EN 2078.Product shall satisfy the requirements of the mat
27、erial standard and/or order and shall be free fromirregularities prejudicial to the subsequent manufacture or use of this product.Notwithstanding previous acceptance complying with this material standard, any product that is found, at alater stage, to contain such defects shall be rejected.Unless ot
28、herwise specified, the requirements in tables 1 and 2 shall apply in conjunction with those of therelevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and table 2relates to lines 30 onwards in which the sub-line format is also used. Lines 2 to 98 may also
29、 be opened inline 100 if the material standard details specific qualification requirements. If a specific line number is notshown in tables 1 and 2, the requirement is stated in the material standard and/or order.6.2 Qualification requirementsQualification requirements when invoked by the material s
30、tandard and/or order are detailed in tables 1 and 2.Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run onthe first 3 batches, coming from at least 2 casts.Page 6prEN 4700-4: 20026.3 Release requirements6.3.1 Release testsRelease testing shall be the r
31、esponsibility of the manufacturer.The purchaser reserves the right to perform any of the inspections and/or tests required by the materialstandard and/or order.The test samples shall be representative of the product.When required by the order the manufacturer shall inform the purchaser of the planne
32、d dates for extractionof samples and release testing in order that these operations may be witnessed.Tables 1 and 2 detail the requirements for each line of the material standard. Unless otherwise specificallyrequested by the purchaser, a particular inspection and/or test for release shall be carrie
33、d out ifcorresponding acceptance criteria and/or values are stated in the applicable material standard, but see alsosection 6.3.5 “Capability clause“.6.3.2 RetestsIf any requirement is not met, retests shall be carried out under the following conditions unless otherwisestated in the material standar
34、d or order.If the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequencyafter rectification of the original cause of failure, on a test sample located near the first one.For wire with hardness results below the minimum or above the maximum value, th
35、e softest or hardest wire,as appropriate, shall be submitted to a tensile test. If the results comply with the specified tensilerequirements, all wire shall be accepted.When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall beselected at twice the
36、original frequency from the product, one of which shall be that on which the originalresults were obtained unless already withdrawn by the manufacturer after suitable identification of the causeof failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests areu
37、nsatisfactory, the batch shall be: rejected, or 100 % retested and the conforming products accepted, or partially or fully re-heat treated if heat treatment can rectify the cause of the failure and tested as acompletely new batch except for chemical composition and cleanness inspection. The reheat t
38、reatmentshall be stated on the release test certificate.For cleanness inspection, if the material fails the requirement the product may be cut back before retesting.6.3.3 RejectionAny failure to meet the requirements of the material standard shall be cause for rejection.6.3.4 Special testsSpecial te
39、sts may be required by the purchaser. In such cases, the nature of the test, method, frequency andtechnical requirements shall be specified on the order or inspection schedule and shall be mutually agreedby the manufacturer and the purchaser.6.3.5 Capability clauseWhere the capability clause is invo
40、ked and where sufficient statistical evidence exists, the test need not becarried out (unless specifically requested by the purchaser). However, this in no way reduces the obligationsof the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does notcomply with
41、the requirements, the batch shall be rejected.If sufficient statistical evidence does not exist, the test shall be carried out at a frequency agreed betweenthe manufacturer and purchaser.Page 7prEN 4700-4: 20026.3.6 Statistical process controlReduction in the extent of release testing, other than th
42、at defined in 6.3.5 above, may be negotiated with thepurchaser on the basis of appropriate statistical process control and/or statistical data.6.3.7 Inspection and test reportThe manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078stating the following:
43、manufacturers name and address and, if appropriate, identification of the plant; order number; material standard number; method of melting; delivery condition and metallurgical code of the product; quantity and dimensions; manufacturing and inspection schedule reference; cast and batch number; all h
44、eat treatment, including re-heat treatment and, where appropriate, straightening and stressrelieving parameters, applied to the batch; test sample heat treatment; results of the tests and retests if any.6.4 TraceabilityEach product shall be traceable to the cast, production batch and/or heat treatme
45、nt batch at all stages ofmanufacture, testing and delivery.Page 8prEN 4700-4: 2002Table 1 Technical requirements for lines 1 to 29, where appropriateFrequency of testingMaterial standard linereferenceNo TitleRequirementsQualification Release1 Material designation EN 2032-1 and EN 10027-1 if applicab
46、le - 2 Chemical composition The chemical composition of the alloy shall comply with requirements of the material standard.The samples taken for analysis shall be representative of the melt.The method of analysis shall be at the option of the manufacturer, but in cases of dispute, the referencemethod
47、 set out in the relevant EN or ISO standard shall be used. If no EN or ISO standard exists, afundamental and agreed method of chemical analysis calibrated against accepted reference standardsshall be used.In the case of remelted material, samples shall be taken from positions as follows:a) Vacuum ar
48、c remelted (VAR) ingots: the bottom of each ingot or ingot product.b) Electroflux or electroslag (ESR) remelted ingots: the top and bottom ends of each ingot or ingotproduct.An analysis shall be made of each sample and certificates of analysis shall be supplied to the purchaser.The elements to be de
49、termined shall be as required by the material specification or as agreed between themanufacturer and the purchaser.Elements not quoted in the material standard shall not be intentionally added to the alloy without theagreement of the purchaser, except for the purpose of finishing the heat (eg. addition of deoxidant);reasonable precautions shall be taken to prevent their inclusion
