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STANDARD
SIST EN 4301:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4301March 2009ICS 49.050 English VersionAerospace series - Identification marking methods for engineitems - Engineering requirementsSérie aérospatiale - Méthodes de marquage pour articlesmoteurs - Exigences techniquesLuft- und Raumfahrt - Kennzeichnungsverfahren fürTriebwerkbauteile - Technische AnforderungenThis European Standard was approved by CEN on 1 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4301:2009: ESIST EN 4301:2009
EN 4301:2009 (E) 2 Contents Page Foreword .31 Scope .42 Normative references .43 Terms and definitions .44 Symbols and abbreviations .55 Arrangement of marks .55.1 General .55.2 General arrangement .56 Coding system .66.1 Identification marking codes .66.2 Standard combinations of identification marks .76.3 Indication on drawings .76.3.1 General .76.3.2 Meaning of codes given in example (Figure 2) .86.3.3 Understanding Table 3 .87 Character height . 128 Writing . 129 Depth of marks . 1210 General marking conditions . 1210.1 Introduction . 1210.2 Process quality . 1210.3 Marking quality . 1210.4 Surface treatment . 1310.5 Cast/forged parts . 1310.6 Temporary production mark . 1310.7 Re-marking . 1310.8 Final inspection mark . 1311 Marking methods . 1411.1 Permanent markings . 1411.2 Temporary markings . 15Annex A (normative)
Optical Character Recognition (O.C.R.) . 17Annex B (normative)
Character shapes and optical character recognition requirements (O.C.R.) for 5××××7 dot matrix method . 18Annex C (normative)
O.C.R. characters – Common characteristics . 20 SIST EN 4301:2009
EN 4301:2009 (E) 3 Foreword This document (EN 4301:2009) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 4301:2009
EN 4301:2009 (E) 4 1 Scope This standard describes the coding system for marks, the processes used to produce these marks, as well as the general marking requirements for the identification of aerospace engine items. This document is applicable to items whose engineering drawing or design folder refers to EN 4301 for all issues that are not in contradiction with specific indications appearing on the engineering drawing or in the design folder. This document is not applicable to items requiring an identification plate. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 3098-2, Technical product documentation — Lettering — Part 2: Latin alphabet, numerals and marks (ISO 3098-2:2000) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 marking action of affixing one or more marks on a medium 3.2 mark physical information, composed of legible characters on the item or its packaging 3.3 permanent mark mark produced by means of a marking process whose characters can only be eliminated by removing material (machining) 3.4 temporary mark mark produced by means of a marking process whose characters can be easily removed 3.5 character each of the elements which compose the mark: letter, figure, symbol, separator, etc. 3.6 design authority person or corporate body who is in charge of the design definition 3.7 design definition creative activity which, starting from expressed needs, existing means, and technological possibilities, results in the design of a product meeting these needs and industrially feasible SIST EN 4301:2009
EN 4301:2009 (E) 5 3.8 manufacturer person or corporate body who masters the design of a product and has complete control over the quality of each item or sample produced 3.9 supplier person or corporate body party to a business venture, contract, or order they have accepted which commits them, with respect to the customer, to carrying out the provisions stated therein 3.10 production source person or corporate body who is responsible, with respect to the manufacturer, for manufacturing and inspecting a cast or forged, pre-machined, finished item or material. This may involve a subcontractor or an accessory manufacturer. To the extend that he is given the order, he becomes a producer 3.11 subcontractor person or corporate body who carries out, on behalf of and under the responsibility of a supplier, all or part of the business venture, contract, or order concluded by the customer NOTE In the case of Public Contracts, a single subcontractor is not allowed to execute the entire contract entered into by the customer. 4 Symbols and abbreviations O.C.R. Optical Character Recognition 5 Arrangement of marks 5.1 General Marks are to be made in the same order as that shown by the combinations for the standard arrangements (alphabetical code) identified by numerical codes given in Table 2 or in accordance with a particular combination indicated in the note on the drawing. 5.2 General arrangement character height = h; minimum distance between two marks on the same line: 3 h; minimum distance between two successive lines: 1,4 h; first character on all lines: aligned on the left; any marking placed to the right of the manufacturer's identification number should be at a distance of at least 15 mm from it. SIST EN 4301:2009
EN 4301:2009 (E) 6 EXAMPLE
2 10 3 1 h 1,4 h 3 h 2 : Company code (Designer) 1 : Item identification number 10 : Production source's company code 3 : Serialization number 6 Coding system 6.1 Identification marking codes Identification marking is in accordance with codes specified in Table 1. Table 1 Code Marking Comments 1 Item identification number Determined by the manufacturer and indicated in design documents, with change letter if applicable. 2 Company code (designer) Manufacturer's or designer's company code indicated in item's design documents. 3 Serialization number
4 Production batch number
5 Material batch number
6 Production source's company monogram For small-sized items, can replace production source's company code. Manufacturer must keep the list of producer monograms up to date. 7 Curing date For elastomer only, should be indicated as follows: year and quarter: 2Q95 or 2T95. 8 Casting number For foundry only 9 Manufacturing date With five characters unless otherwise indicated in design documents. Should be shown as follows: – year and week (recommended): 95W26 – or year and month: 9506. 10 Production source's company code
11 Additional markings Indicated in design documents. – Inspection marking As this marking is systematic, it is not codified. – Concession marking As this information does not appear in the design documents, it is not codified.
SIST EN 4301:2009
EN 4301:2009 (E) 7 6.2 Standard combinations of identification marks Standard combination is in accordance with codes specified in Table 2. Table 2 Code Combination Comments A 2 – 1 – 10 – 3 (1 line) 3 is replaced by 9 for non-serialized items B 2 – 1 10 – 3 (2 lines) C 2 1 10 3 (4 lines) D 2 – 1 – 3 – 9 – 7
E 2 – 1 – 9
F 2 – 1 – 3 – 9
G 1 – 3 – 9
H 1 – 9
J 2 – 1 – 9 – 7
6.3 Indication on drawings 6.3.1 General Codes for the marks to be made, usable marking processes, and notes if needed, are shown in a symbol (see Figure 1) placed on the drawing. Marking processes or the process family (see Table 3) are preceded by the identification number of this standard, both separated by a dash. The note or notes are optional and are written out in full on the drawing near the symbol or the title block and designated by one or more numbers. MARKING Code combination
MARKING Code combination B Process(es) EN4301
Process(es) EN4301-02F2 Note(s)
Note(s) 1 – 2 Figure 1 — Symbol
Figure 2 — Example
of codified symbol SIST EN 4301:2009
EN 4301:2009 (E) 8 6.3.2 Meaning of codes given in example (Figure 2) B : Marking arrangement on two lines (in accordance with combination in Table 2 and rules in 5.1). 02F2 : "Dots" marking process, depth of markings 0,03 mm to 0,10 mm (see Table 3). 6.3.3 Understanding Table 3 Examples of writing on drawing
InterpretationEN4301-02 : Permits each of the marking processes in the second column (02A to 02F) or each of the processes in the third column (02A1 to 02F3). EN4301-02C : Permits marking processes 02C1 or 02C2. EN4301-02B1 : Permits the "shallow press" marking process. EN4301-B : Permits each of the processes marked with an "X" in column B.EN4301-02B1-D : Permits the 02B1 marking process and each of the processes markedwith an "X" in column D. EN4301-02B-DM5 : Permits the 02B marking process with a character height of 3,20mm, O.C.R. writing.
SIST EN 4301:2009
EN 4301:2009 (E) 9 Table 3 — Marking method codes, class lette
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