1、AECMA STANDARD NORME AECMA AECMA NORM prEN 4258 Edition P 1 December 1995 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (32) 2 775 81 10 - Fax. (32) 2 775 81 11 ICs : 49.040.10 ENGLISH VERSION Aerospace series Metallic materials General
2、 organization of standardization Links between types of EN standards and their use Srie arospatiale Matriaux mtalliques Organisation gnrale de la normalisation Liens entre les types de normes EN et leur utlisation Luft- und Raumfahrt Metallische Werkstoffe Allgemeine Gliederung der Normung Verknpfun
3、g der Arten von EN-Normen und ihre Anwendung This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of t
4、he concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After exa
5、mination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. I Nota - Extra copies can be supplied by B.N.A.E
6、. - Technopoiis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ICCY-LES-MOULINEAUX CEDEX C5 Chairman Comments should be sent within six months after the date of Dublication to I Edition approved for publication I 1995-1 2-29 AECMA Gulledelle 94 B-1200 BRUXELLES Mr Odorico aecrna 1995 Page 2 prEN 4258
7、: 1995 Contents list Introduction . Scope . Normative references Definitions . Description of the types of EN standards . Links between types of EN standards and use Overview . Annex A (normative) Annex B (normative) Annex C (normative) Page 3 3 3 4 5 6 7 8 9 10 AECMA PRENx4258 95 = 1012311 DO10131
8、788 Page 3 prEN 4258 : 1995 O Introduction For the purpose of standardization of metallic materials, AECMA had originally based the organization of standard on a system which provided strong interlinks between a material standard referring to EN 2500 and its supporting standards. Since these links d
9、id not allow the partial use of the supporting standards, the following amendments have been introduced to ensure that: - strongly interlinked standards are limited to those strictly necessary to ensure coherency; - other standards may be either used, or replaced by standards of another origin, at t
10、he purchasers discretion. The basic change in these links is that the dimensional standards and designation standard for semi- finished products, where applicable, have been dissociated from the material standard. In the meantime, product qualification procedures are being introduced. Pending the up
11、dating of the standards, these two organizations exist in parallel: - the original one described by EN 2500; - the new one described in this standard (see annexes A and BI. To enable progressive updating of the standards, the intermediate procedure to be followed is described in annex C. 1 Scope Thi
12、s standard specifies the general organization of metallic material standards, their links with other types of EN standards and their use for aerospace applications. It corresponds to level O (see annex A). 2 Normative references This European Standard incorporates by dated or undated reference provi
13、sions 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 it b
14、y amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2032-1 Aerospace series - Metallic materials - Part 1 : Designation 1) EN 2032-2 Aerospace series - Metallic materials - Part 2: Coding of metallurgical condition in delivery condition EN 20
15、43 Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings) 2) Aerospace series - Metallic materials - Manufacturing schedule - Inspection schedule - Inspection and test report - Description and rules for use Aerospace ser
16、ies - Instructions for the drafting and use of metallic material standards 3) Aerospace series - Designation of metallic semi-finished products - Rules 1) EN 2078 EN 2500 EN 2600 1) Published as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publicatio
17、n of this standard 3) Including all parts, published as AECMA Prestandards at the date of publication of this standard _ AECMA PRENx4258 75 LOL23Ll OOLOL32 bL4 Page 4 prEN 4258 : 1995 EN 4000 EN 4179 EN 4259 EN 4260 EN 4261 EN 4268 EN 4500 TR 2410 Aerospace series - Metallic materials - Rules for dr
18、afting and presentation of dimensional standards for semi-finished products 4) Aerospace series - Metallic materials - Qualification and approval of personnel for non destructive testing 5) Aerospace series - Metallic materials - Definitions of general terms 4) Aerospace series - Metallic materials
19、- Rules for drafting and presentation of technical specifications 4) Aerospace series - Metallic materials - Rules for drafting and presentation of test method standards 6) Aerospace series - Metallic materials - Heat treatment facilities 4) Aerospace series - Metallic materials - Rules for drafting
20、 and presentation of material standards 6) Aerospace series - Relationship between dimensional standards and metallic material standards 7) 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 Family of metallic materials Group of metallic materials characterized by
21、a base element or a group of base elements in several different semi-finished product forms: - aluminium and aluminium alloys; - magnesium alloys; - heat resisting alloys (nickel or cobalt or iron base); - titanium and titanium alloys; - steel; - filler metals for brazing; - etc 3.2 Semi-finished pr
22、oducts Generic term used to indicate that the material as supplied does not necessarily have any relation to the exact form, dimensions or condition in which that material is used as a final component. This term may refer to one of the following types: - wrought products (e.g. bar, sheet) or cast pr
23、oducts (e.g. rod, amorphous brazing foil) characterized by their form within a range of standardized dimensions; - products of non-standardized form and dimensions produced by the same metallurgical technique (forging stock, remelting stock, etc.); - blanks manufactured from the products stated abov
24、e, of non-standardized form and dimension (forgings, castings, etc.). 4) In preparation at the date of publication of this standard 5) Published as AECMA Prestandard at the date of publication of this standard 6) Including all parts, in preparation at the date of publication of this standard 7) Publ
25、ished as AECMA Technical Report at the date of publication of this standard - AECMA PREN*4258 95 m 1012311 0010133 550 Page 5 prEN 4258 : 1995 4 Description of the types of EN standards There are five levels of EN standards, numbered from O to 4 (see annex A). 4.1 General standard (level O) This is
26、the explanatory standard for the organization of the whole collection. 4.2 Basic standards (level 1 ) These define the wording and/or specify conventional rules that provide the basis of understanding for the writer and the user of rules and semi-finished product definition standards (see 4.3 and 4.
27、4). They consist of: - definitions of the general terms EN 4259 - definitions of manufacturing schedule, EN 2078 - material designation . EN 2032-1 - coding of metallurgical condition in the delivery condition . EN 2032-2 inspection schedule and inspection and test report . 4.3 Standards specifying
28、rules (level 2) These standards state the specific rules for the drafting and presentation of the semi-finished product definition standards (see 4.4). They consist of: Material standards . EN 4500-1 to EN 4500-6 Technical specifications EN 4260 Test method standards . EN 4261 Dimensional standards
29、EN 4000 and for the intermediate procedure: General requirements for qualification . EN 2043 4.4 Semi-finished product definition documents (level 3) 4.4.1 Material standards Standards specifying a series of technical requirements relating to a metallic material semi-finished product, in one or seve
30、ral delivery conditions and only one use condition. 4.4.2 Technical specifications Standards which specify, for the semi-finished products of a metallic material family, general and specific technical requirements related to: - manufacturing; - quality assurance (qualification, acceptance, etc.); -
31、the preparation and procedures for inspection (including test frequency); - the order and shipment. 4.4.3 Test method standards Standards which specify instructions for determination of a characteristic: - principles; - reagent and/or materials; - apparatus; - preparation and retention of test sampl
32、es and/or test pieces; - procedure(s). - AECIA PRENx4258 95 = 10123LL O010134 497 Page 6 prEN 4258 : 1995 4.4.4 Dimensional standards Standards which specify, for each form of semi-finished product in a family of metallic materials: - the geometry; - dimensions; - associated tolerances. 4.4.5 Standa
33、rds which specify the rules for designation of metallic semi-finished products: e.g. EN 2600. Designation standards for semi-finished products 4.4.6 Technical Reports Reports which group information in a practical way, e.g.: - relationship between dimensional standards and material standards . TR 24
34、1 O 4.5 Standards which specify supplementary quality assurance requirements for: Supplementary standards for Quality Assurance (level 4) - personnel; - facilities; - processes; - etc EXAMPLE 1 : EXAMPLE 2: EN 4268 Heat treatment facilities EN 41 79 Qualification and approval of personnel involved i
35、n non-destructive testing 5 Links between types of EN standards and use 5.1 Level 1, 2 and 4 standards 5.1.1 Basic standards (level 1) shall be used in defining the semi-finished product definition standards (level 31, see 5.2. 5.1.2 product definition standards (level 31, see 5.2. Rules (level 2) s
36、hall be systematically used for the drafting and presentation of semi-finished 5.1.3 standards where their application is considered necessary. Supplementary standards for Quality Assurance (level 4) are only referred to in the relevant NOTE: The supplementary standards for Quality Assurance may als
37、o be external to the collection (e.g. ISO, ASTM, etc.) after agreement between the manufacturer and the purchaser. 5.2 Level 3 standards 5.2.1 The material standard is the lead document that provides the basis of understanding between the manufacturer and the purchaser. As such, the requirements of
38、the material standard shall override any other different requirements of any other referenced level 3 standards (see annex B, use of the material standard). 5.2.2 The material standard shall refer to the relevant technical specification. NOTE: This link is mandatory for coherency of the collection.
39、AECMA PRENn4258 95 LOL231L 0010135 323 Page 7 prEN 4258 : 1995 5.2.3 The material standard and the technical specification make reference to test method standards. NOTE 1: The test method standards from the original organization remain valid for the new organization. NOTE 2: Test method standards ex
40、ternal to the collection may also be used (e.g. 130, ASTM, etc.). 5.2.4 Dimensional standards shall not be referred to in the material standards. Dimensions shall be independently specified by the purchaser on the order, in accordance with the requirements of the technical specification or normative
41、 documents from another origin. 5.2.5 Designation standard shall not be referred to in the material standards or in the dimensional standards. Designation rules, when required, shall be independently specified by the purchaser on the order, in accordance with the requirements of the technical specif
42、ication or normative documents from another origin. 5.3 Technical Reports Technical Reports defining relationships between standards or data from different standards are established to facilitate the use at any level of the standards in the collection. They shall not be referred to in material stand
43、ards or dimensional standards. 6 Overview See annex A. AECMA PRENx4258 95 LOL23LL 0010136 2bT Test method standards Page 8 prEN 4258 : 1995 Technical specification Annex A (normative) Table AI - New organisation Overview Type of document General standard (see 4.1 ) Basic standards (see 4.2) Rules (s
44、ee 4.3) Semi-finished products definition documents (see 4.4) Supplementary standards for Quality Assurance (see 4.5) Level O - 1 - 2 - 3 - 4 Reference and title EN 4258 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their us
45、e EN 2032-1 Aerospace series - Metallic materials - Part 1 : Designation EN 2032-2 Aerospace series - Metallic materials - Part 2: Coding of metallurgical condition in delivery condition EN 2078 Aerospace series - Metallic materials - Manufacturing schedule - Inspection schedule - Inspection and tes
46、t report - Description and rules for use EN 4259 Aerospace series - Metallic materials - Definitions of general terms Aerospace series - Metallic materials - Rules for drafting and presentation of dimensional standards for semi- finished products Aerospace series - Metallic materials - Rules for dra
47、fting and presentation of technical specifications Aerospace series - Metallic materials - Rules for drafting and presentation of test methods standards Aerospace series - Metallic materials - Rules for drafting and presentation of material standards EN 4000 EN 4260 EN 4261 EN 4500 a) Interconnected
48、 (see 5.2.1 1 - Material standards - Technical specifications - Test methods standards Material standards : link mandatory : link recommended b) Optional use (see 5.2.4 and 5.2.5) - Dimensional standards - Designation standards Relationship between EN dimensional standards and EN metallic material s
49、tandard: TR 241 O. c) Information (see 5.3) EN 4179 Aerospace series - Metallic materials - Qualification and approval of personnel for non destructive testing EN 4268 Aerospace series - Metallic materials - Heat treatment facilities Page 9 prEN 4258 : 1995 Annex B (normative) Use of the material standard For the definition and lay out of forms 1, 2 and 3, see EN 4500-1 B- 1 Form I B-1-1 acceptance and that the semi-finished product shall meet the requirements specified on these lines. All lines that are completed indicate that the relevant test shall be carried
