1、-_ - - _-_ CEN PREN*2032-L 74 E 3404587 0072020 O47 Edition approved for publication 1994-10-31 AECMA STANDARD NORME AECMA AECMA NORM C5 Chairman Mr Odorico Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-M
2、oulineaux Cedex - FRANCE prEN 2032-1 Edition P 4 October 1994 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 Supersedes edition P 3 UDC : January 1993 Descriptors : Srie aro
3、spatiale Matriaux mtalliques Partie 1 : Dsignation ENGLISH VERSION Aerospace series Metallic materials Part 1 : Designation Luft- und Raumfahrt Metallische Werkstoffe Teil 1 : Bezeichnung This “Aerospace Series Prestandard has been drawn up under the responsibility of AECMA (Association Europenne de
4、s Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical cont
5、ent shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will
6、be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-
7、,-,-CEN PREN*2032-L 74 m 3404587 0072023 T85 m Page 2 prEN 2032-1 : 1994 O Foreword prEN 2032, edition 1, was published by Technical Committee C5 in August 1980. It is the task of the Technical Committee to review their standards after 5 years. In this exceptional case, it was decided to publish the
8、 revised document as a pre-standard prEN 2032 Part 1, edition PI : 1990, for the following reasons: to allow traceability of information in both existing prENs and new or revised prENs (some refer to the designation system defined by prEN 2032: 1980, others will refer to the designation system defin
9、ed by prEN 2032-1, PI: 1990), making it necessary to keep prEN 2032: 1980 available until complete updating of existing documents, - to receive comments from users, during a 6 months period after publication of the pre-standard, in conformity with AECMA rules, principally concerning rules which do n
10、ot derive from a world- wide codification system, such as that of ALUMINUM ASSOCIATION, - the edition P2: 1991 has taken into account comments received during this period and thus has superseded edition PI : 1990 which has never been used in published AECMA pre-standards or standards. - the edition
11、P3: 1993 has taken into account comments received on edition P2: 1991, has brought in line AECMA rules for the designation of cast aluminium base materials with the rules defined by CEN/TCI 32 and thus has superseded edition P2: 1991, as no AECMA standard had been published using previous AECMA rule
12、s for those cast materials. the present draft edition P4: 1994 takes into account the difficulties raised by the working groups of C5 when implementing the edition P3 and gives: - - - - - some clarification for the principle of designation, a more precise definition for rules of designation of certa
13、in material families, improved examples, dealing with more possible cases. Contents list 1 2 3 4 4.1 4.2 4.3 4.4 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 6 6.1 6.2 7 7.1 7.2 7.3 Scope Normative references Definitions Principle Base metal Manufacturing method or use Chemical composition (base metal excluded) Ma
14、ss content of an alloying element Structural materials Unalloyed metals Nickel base or cobalt base alloys Aluminium base materials Steels Commercially pure titanium and titanium base alloys Magnesium base alloys Other base alloys Joining materials Welding materials Brazing materials Allocation and r
15、egistration of the conventional designations Allocation of the conventional designations Registration of the conventional designations Updating Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networkin
16、g permitted without license from IHS-,-,-Page 3 prEN 2032-1 : 1994 I Scope This standard specifies the rules for establishing the conventional designation of metallic materials used in aerospace construction. NOTE: The relationship between AECMA designation systems is given in TR 3900. 2 Normative r
17、eferences EN 10020 Definition and classification of grades of steel TC1 32/Wl68 Aluminium and aluminium alloys - Unalloyed aluminium, aluminium alloys and master alloys - Ingots for remelting and castings - Designation and chemical composition - Part 1 : Numerical designation TR 3900 Aerospace serie
18、s - Metallic materials - Relationship between AECMA designation systems 2) TR 4242 Aerospace series - Metallic materials - List of EN standardized commercially pure metals and alloys 3, 3 Definitions - Structural material: material used for the manufacture of a specific component of an aerospace sys
19、tem, structure or powerplant. Alloying element: element other than base metal the mass content of which is expressed by means of a range. NOTE 1: The range is explicitly defined by the specified values for minimum and maximum limits of the mass content. - - Minor element: element in the chemical com
20、position of the metallic material the variation of mass content of which does not affect its typical characteristics. NOTE 2: The content for a minor element is only specified by the maximum value of the mass content. - Unalloyed metal: metal that contains no alloying elements and with a total impur
21、ity content less than 0,5 %. NOTE 3: For the applications of this standard, a so-called “commercially pure“ metal is not considered as unalloyed metal and its designation shall be chosen according to the same rules as those of the relevant metallic alloys. - Cast material: material resulting from th
22、e bulk solidification of a previouslv homogeneous liquid metal. - Cast + wrought material: material resulting from further solid state working of cast material. - Powder metallurgy material: material divided into solid particles at least in the first step of its solid state processing. Steel: iron b
23、ase material alloyed with carbon the content of which is generally lower than 2 %. Unalloyed steel: see EN 10020. - - 1) In preparation at CEN/TCl32 at the date of publication of this standard 2) Published as AECMA Technical Report at the date of publication of this standard 3) In preparation at the
24、 date of publication of this standard Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENs2032-L 94 0 3404589 0072023 858 Page 4 prEN 2032-1 : 199
25、4 - Low alloy steel: steel alloyed with one or several metallic elements, the mean value of the content of each being less than 5 % and the content of at least one being higher than the carbon content. High alloy, ferritic or martensitic steel: steel alloyed with one or several metallic elements, th
26、e mean value of the content of at least one of which is equal to or higher than 5 % and the crystalline structure of which contains less than 40 % of austenite in its condition of use. - High alloy, austenitic or austeno-ferritic steel: steel alloyed with one or several metallic elements, the mean v
27、alue of the content of at least one of which is equal to or higher than 5 % and the crystalline structure of which contains 40 % austenite or more in its condition of use. - Joining material: material used for the metallurgical assembly of several parts of an aerospace system. - Welding material: jo
28、ining material whose solidus temperature is close to or the same as the solidus temperature of the materials to. be joined. - Brazing material: joining material whose solidus temperature is significantly lower than the solidus temperature of the materials to be joined. - 4 Principle The conventional
29、 designation defines by one system of digits all metallic materials having the same basic chemical composition (see 4.1 and 4.3) without taking into account: - - the method of melting, - the heat treatment, - the form. any option concerning the minor elements, NOTE: The method of melting may induce
30、variations in the mass content of one or several alloying elements. These variations are not considered significant and shall not be taken into consideration. In addition, a digit indicates the manufacturing method or the use (see 4.2). The designation of each material comprises nine digits, divided
31、 into three groups, the contents of each of them is as follows: 4.1 Base metal A group of three digits, the first of which, and if necessary the second, is the international symbol of the base metal written in capital letters. The remaining digits of this group are completed with dashes. 4.2 Manufac
32、turing method or use One digit devoted to a capital letter from the following series: Structural material - - C for cast material, - - P for cast + wrought material, R for powder metallurgy material, 4.3 A group of five digits: 4.3.1 In the case of unalloyed materials, the first three digits indicat
33、e information as in 5.1. 4.3.2 In the case of metallic alloys, with the exception of all aluminium base materials (see 5-31, the first three digits indicate the alloying elements (one, two or three) considered significant (see 5.1, 5.2 and 5.4 to 6.2). If the chemical composition is such that there
34、is only one or two alloying elements, the remaining digit(s1 is (are) a zero. The use of this group of three digits is defined in each of the relevant following clauses. Chemical composition (base metal excluded) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by I
35、HS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ -_ _- - -_ CEN PREN*2032-L 94 S 3404589 0072024 794 -I Cast + wrought material - Page 5 prEN 2032-1 : 1994 ! i 4.3.3 The last two of this group of five digits form a serial number starting
36、 at 01. This serial number shall be changed every time the first three and the last five digits already allocated do not fit the new basic chemical composition to be designated. NOTE: In consequence of 4.1, 4.2 and 4.3, except for certain brazing materials (see 6.2.2.1 and 6.2.2.2) the first three a
37、nd the last five digits correspond to one and only one basic chemical composition, whatever the letter used as the fourth digit. 4.4 Mass content of an alloying element It shall be taken as the arithmetical mean of the limits of its range. If two alloying elements have the same mass content, they sh
38、all be written according to the alphabetical order of their international symbol. 5 Structural materials 5.1 Unalloyed metals With the exception of all aluminium base materials (see 5.31, the group of five digits of the designation comprises from left to right: - a single capital letter U symbolic o
39、f this category, - a number indicating the percentage of base metal after the decimal point, completed with zero if necessary, last two digits as serial numbers. - EXAMPLE: Cast + wrought copper 99,97 YO pure 5.2 The group of five digits of the designation comprises from left to right: an indication
40、 of the chromium mass content by one capital letter, . D for alloys which have a chromium mass content l,oo EXAMPLE: Unalloyed cast + wrought steel Carbon mass content : 0,20 % .-. C 2 0,30 % - - , 5.4.2 Low alloy steels The group of five digits in the designation comprises from left to right: - - a
41、 capital letter L symbolic of this category, two digits indicating in decreasing order of their mass content the two alloying elements of highest mass content, in accordance with table 3, last two digits as serial numbers. - 1) In this example, the chemical composition is unique and the serial numbe
42、r can only be O1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - CEN PREN*2032-L 94 3404589 0072028 33T 2 3 Page 9 prEN 2032-1 : 1994 Ni Nb Table 3
43、- List of alloying element references for low alloy steels 5 Reference 1 Mo Element 6 1 Ti Cr 9 Miscellaneous 4 I Iron . . . .- _ . . . Cast + wrought material 11; II - -.l_- V 7 si 8 Mn EXAMPLE 1: Cast low alloy steel FE-CL I TT . Iron Cast material - -1 Low alloy steel - , i, il Alloying elements
44、of highest mass content :I i li i - molybdenum !i in decreasing order : - chromium I Serial number 1 EXAMPLE 2: Cast + wrought low alloy steel I. Alloying elements of highest mass content in decreasing order : . ._ . ._ - nickel - chromium . - - - II-_ . _- Serial number Copyright Association Europe
45、ene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*2032-L 94 E 3404589 0072029 276 E 8 9 Page 10 prEN 2032-1 : 1994 Cu Miscellaneous 5.4.3 The group of five digits in the de
46、signation comprises from left to right: High alloy ferritic and martensitic steels - - - a capital letter M symbolic of this category, one digit indicating chromium and nickel mass content, in accordance with table 4, one digit indicating in decreasing order of the highest mass contents the third al
47、loying element, in accordance with table 4, - last two digits as serial numbers. Table 4 - List of alloying element references for high alloy ferritic and martensitic steels I Reference I Element 1 Cr 15 % and Ni 12 % 2 Cr 15 % and Ni212% 3 Cr2 15 % and Ni 12 % 4 Cr215% and Ni212% I 5 I Mo 6 w 7 Co
48、EXAMPLE: Cast + wrought martensitic steel FE-PM3804 , Cast + wrought material I /II I I II , I I I High alloy ferritic steel - -. Chromium and nickel mass content : _._._ . . I - chromium ;: 15 % - nickel . 12 % I II II Third alloying element in decreasing order of the highest mass contents : - copp
49、er Serial number . . . - Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -_f_-_-_- CEN PREN*2032-L 94 CB 3404589 0072030 T98 8 9 Page 11 prEN 2032-1 :
