ASD-STAN PREN 2500-1-1995 Aerospace Series Instructions for the Drafting and Use of Metallic Material Standards Part 1 General Requirements (Edition P 3)《航空航天系列 金属材料标准的起草和使用指南 第1部.pdf

1、AECMA PREN*2500-1 95 LOL23Ll 00093LO 032 AECMA STANDARD NORME AECMA AECMA NORM prEN 2500 Part 1 Edition P 3 May 1995 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 I ICs: Su

2、persedes Issue P 2 July 1992 Descriptors : ENGLISH VERSION Aerospace series Instructions for the drafting and use of metallic material standards Part 1 : General requirements Srie arospatiale Instructions pour la rdaction et lutilisation des normes de matriaux mtalliques Partie 1 : Exigences gnrales

3、 Luft- und Raumfahrt Regeln fr die Erstellung und Anwendung von Normen ber metallische Werkstoffe Teil 1 : Allgemeine Festlegungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published

4、on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee follo wing comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangea

5、bility is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPSI and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (Europ

6、ean Committee for Standardization) for formal vote. I Nota - Extra copies can be supplied by B.N A E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX C 5 Chairman I Comments should be sent within six months after the date of publication to Edition approved for pu

7、blication 1995-05-31 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE M. Odorico aecma 199 Page 2 prEN 2500-1 : 1995 I, Contents list Page 1 2 3 4 5 Scope . .,. ., . . . . 3 Normative references . . , . . , . ._. . . . . . . . . . . . . . . . . . . . 3 Def

8、initions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 lhe use of metallic material EN aerospace standards . . . . . . . . 5 Instructions for drafting of metallic material EN aerospace standards , . . . . . . . . . 5 Page 3 prEN 2500-1

9、: 1995 1 Scope This standard specifies the general requirements for the drafting and use of metallic material standards for aerospace applications. The instructions which are specific to each family of metallic materials are as follows : - Aluminium, aluminium alloys and magnesium alloys EN 2500-2 -

10、 Heat resisting alloys EN 2500-3 - Titanium and titanium alloys EN 2500-4 - Steel EN 2500-5 - Filler metal for welding - Filler metal for brazing EN 2500-2 to -5 EN 2500-6 2 Normative references This Standard incorporates by dated or undated reference provisions from other publications. These normat

11、ive 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 Standard only when incorporated in it by amendment or revision. For undated references the

12、latest edition of the publication referred to applies. IS0 31-0 IS0 31-1 IS0 31-3 IS0 31-4 IS0 31-9 IS0 31-1 1 IS0 1000 EN 2002-1 EN 2032-1 EN 2032-2 EN 2078 EN 2500-2 EN 2500-3 EN 2500-4 EN 2500-5 EN 2500-6 EN 2600 General principles concerning quantities, units and symbols Quantities and units of

13、space and time Quantities and units of mechanics Quantities and units of heat Quantities and units of atomic and nuclear physics Mathematical signs and symbols for use in the physical sciences and technology SI units and recommendations for the use of their multiples and of certain other units Aeros

14、pace series - Test methods for metallic materials - Part 1 : Tensile testing at ambient temperature l) Aerospace series - Metallic materials - Part 1 : Designation ) Aerospace series - Metallic materials - Part 2 : Coding of material in delivery heat treatment conditions 2, Manufacturing schedule, i

15、nspection schedule and inspection report - General definitions - Aerospace series Aerospace series - Instructions for the drafting and use of metallic material standards - Part 2 : Specific requirements for aluminium, aluminium alloys and magnesium alloys ) Aerospace series - Instructions for the dr

16、afting and use of metallic material standards - Part 3 : Specific requirements for heat resisting alloys l) Aerospace series - Instructions for the drafting and use of metallic material standards - Part 4 : Specific requirements for titanium and titanium alloys ) Aerospace series - Instructions for

17、the drafting and use of metallic material standards - Part 5 : Specific requirements for steel l) Aerospace series - Instructions for the drafting and use of metallic material standards - Part 6 : Specific requirements for filler metal for brazing 1 Aerospace series - Designation of metallic semi-fi

18、nished products - Rules 1) Published as AECMA Prestandard at the date of publication of this standard 2) Publishedas AECMA Standard at the date of publication of this standard Page 4 prEN 2500-7 : 1995 3 Definitions In this standard, the terms below are used with the following meanings : 3.1 Materia

19、l standard Standard specifying a series of technical requirements relating to a metallic material, semi-finished product, according to one or more delivery conditions and one use condition. % 3.2 Metallic material A metal or alloy characterised by one basic chemical composition within specified limi

20、ts. 3.3 Family of metallic materials A group of metallic materials characterised by a base element or group of base elements in several different semi-finished product forms : - aluminium and aluminium alloys, - magnesium alloys, - heat resisting alloys (nickel or cobalt or chromium or iron base), -

21、 titanium and titanium alloys, - steel, - filler metal for brazing. 3.4 Semi-finished products A 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 ter

22、m may refer to one of the following: WE - wrought products characterised by their form within a range of standardized dimensions (bar, sheet, etc.), - products of non-standardized form and dimensions produced by the same metallurgical - blanks manufactured from the products stated above, of non-stan

23、dardized form and technique (forging stock, remelting stock, powder metallurgy, etc.), dimension (forgings, castings, etc.). 3.5 Type of semi-finished product Semi-finished product forms (sheet, plate, bar, etc.) associated with the relevant family of metallic materials. 3.6 Elements of the chemical

24、 composition 3.6.1 Alloying elements Elements other than base metal the mass content of which is expressed by means of a range. 3.6.2 Minor elements Elements the variation of mass content of wich does not affect its typical characteristics. 3.6.3 Trace elements Elements not intentionally added to th

25、e melt cast. AECMA PREN*2500-1 95 W 101231L 0009314 788 W Page 5 prEN 2500-1 : 1995 3.7 Limit dimension and equivalent diameter O, The limit dimension is the maximum size, expressed as the equivalent diameter De), in which the mechanical properties can be obtained at the specified test piece positio

26、ns, when heat-treated in accordance with the material standard. I, 3.8 Inspection schedule See EN 2078. 3.9 Manufacturing schedule See EN 2078. 4 The use of metallic material EN aerospace standards The material standard is the leader document that provides the basis of understanding between purchase

27、r and manufacturer. The necessary data and technical information to identify and give the requirements for a semi-finished product are stated by: - coded conventional designations, according to EN 2032-1, EN 2032-2 and EN 2600, - reference to appropriate dimensional standards, - technical requiremen

28、ts specific to the material standards, - specific tests called for by the technical requirements, in accordance with the test method standards, - requirements in accordance with the technical specification specified in the material standards, - in the case of non-standardized requirements, details s

29、hall be specified on the drawing, order, inspection schedule or the manufacturing schedule, in accordance with the technical specification. 5 Instructions for drafting of metallic material EN aerospace standards 5.1 Page 1 : Title of the material standard The title shall give sufficient information

30、to unambiguously identify the semi-finished product, in the use condition and heat treatment (see 5.4.7). Consequently : 1. the same title shall not be used for different material standards. 2. overlapping of mechanical property limits for otherwise identical material standards shall not be permitte

31、d. Each part shall form one or several different lines : - aerospace series, - the family of metallic material, followed by the designation of the metallic material in - method of melting, if appropriate, - use condition and heat treatment, - the forms written in singular, or plural, in conformity w

32、ith the language used and, - limiting dimensions, - relevant mechanical property limits, if appropriate. accordance with EN 2032-1, if appropriate, the method of production and/or final intended use, AECIA PREN*2500-1 95 1012311 0009315 b14 Page 6 prEN 2500-1 : 1995 5.2 Page 2 Blank, in principle. F

33、oreword, if necessary. 5.3 Page 3 - Clause O : Introduction This clause shall read: “For the use of this standard, see EN 2500-2 or EN 2500-3 or EN 2500-4 or EN 2500-5 or EN 2500-6.“ - Clause 1 : Scope This clause shall read : “This standard specifies the requirements relating ta (repeat all informa

34、tion from the title in a grammatical sequence that satisfies the language used) for aerospace applications. “ If necessary, further information may be added to clarify the field of application. - Clause 2 : Normative references This clause shall give the list of documents, with their titles, to whic

35、h reference is made in the text. 5.4 Page 4 : corresponds to form 1 given in annex A. Form 1 is a fixed format. If there is insufficient space : - on a line, use reference indices. ; - repeat the lines) ; - on a page, extend the width to IS0 A3 format. All lines that are completed are mandatory requ

36、irements and shall be the subject of the relevant test. If acceptance criteria differ from that specified in the technical specification or the test method, the criteria of the material standard shall override the requirements of the technical specification or test method. The absence of an entry in

37、 a line indicates that there is no requirement and that a corresponding test is not carried out, even if this test is referenced in the technical specification. A hyphen shall be marked on those lines that are not required. Other requirements (test method, frequency of testing, sample condition, def

38、inition of test piece, heat treatment condition, testing condition) are specified either in the technical specification or the test method called up by that technical specification, referenced on line 5.1. Duplication of information between the material standard technical specification and test meth

39、od standard shall be avoided. Values other than those mentioned on tines 2, 12, 19, 21, 23 and 25 shall be preceded by a sign depending on whether they are minimum or maximum values (, s, 2). Symbols for sizes and units: See IS0 31-0, IS0 31-1, IS0 31-3,ISO 31-4, IS0 31-9, IS0 31-11 and IS0 1000. Sp

40、ecific examples are given for each family of metallic material in EN 2500-2 to EN 2500-6. 4 - AECMA PREN*2500-1 75 1012312 0009336 550 Page 7 prEN 2500-1 : 1995 5.4.1 Page 4, line 1 : Material designation This line shall give the family of the metallic material and the conventional designation, in a

41、ccordance with EN 2032-1. 5.4.2 Page 4, line 2 : Chemical composition The chemical symbols of the elements shall be written in the first line of boxes, in accordance with established conventions (see IS0 31 -9). The second line of boxes shall indicate the minimum content of that element. The third l

42、ine of boxes shall indicate the maximum content of that element. The range of alloying elements shall be explicity defined by the specified values in the second and third line of the boxes. Trace elements shall be indicated as follows : - identified elements indicate maximum limit, - unidentified el

43、ements indicate as “others“, “each“, “total“ For each element shown, the absence of a value shall be indicated by means of a hyphen. All values shall be expressed in mass percentage. When very low values are expressed in mass parts per million, a reference index shall be used to define the abbreviat

44、ion “p.p.m.“. The following rules shall be observed for the value V : - V min. or V max. 0,Ol % express V min. and V express in %. The number of decimal places written shall be consistent with the accuracy required. in “p.p.m.“, The base metal shall be indicated in the last column of the second line

45、 of boxes by means of a minimum and/or maximum value or by the expression “base“. The standard order of elements for each family of metallic materials is specified in EN 2500-2 to EN 2500-6. Ratio andor total content of two or more elements may be specified on line 2 5.4.3 Page 4, line 3 : Method of

46、 melting This line describes the method(s1 of melting as applicable. 5.4.4 Page 4, line 4 : Form, Method of production, Limit dimensions - Form The form or similar forms of the products covered by the standard shall be specified. - Method of Droduction : The method or methods of production shall be

47、indicated, if necessary. In the case of castings or forgings, indicate requirements for remelting stock or forging stock as follows : - cast from remelting stock EN XXXX, - forged from forging stock EN XXXX. or .t Page 8 pEN 2500-1 : 1995 Limit dimensions Imm) : The dimensions to which limits apply

48、shall be indicated. The following symbols shall be used as applicable : - “a“ dor thickness, - “b“ for width, - “/“ for length, - “D“ for outside diameter, - “d- for inside diameter, - “De“ for the equivalent diameter. 5.4.5 Page 4, line 5 - Line 5.1 : Technical specification This line shall indicat

49、e the standard specifying the inspection, test and delivery requirements for the semi-finished product form involved. - Line 5.2 : Dimensional standards This line shall indicate the applicable dimensional standardk). Each dimensional standard shall be separated from the others by means of a comma. 5.4.6 Page 4, line 6 - Line 6.1 : Delivery condition and heat treatment The first line indicates the nature of the thermo-mechanical operations defining the product, in the order in which they are processed, completed, if appropriate, by a particular