1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1560:2011Founding Designationsystem for cast iron Materialsymbols and material numbersBS EN 1560:2011 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of EN 1560:2011. Itsupersedes BS EN 1560:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/111, Steel Castings and Forgings.A list of organizations represented on this committee can beobtained on request to its secretary.This publicatio
3、n does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 67229 3ICS 77.080.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authorit
4、y of theStandards Policy and Strategy Committee on 30 April 2011.Amendments issued since publicationDate Text affectedBS EN 1560:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1560 February 2011 ICS 77.080.10 Supersedes EN 1560:1997English Version Founding - Designation system for cast iro
5、n - Material symbols and material numbers Fonderie - Systme de dsignation pour la fonte - Dsignation symbolique et numrique Gieereiwesen - Bezeichnungssystem fr Gusseisen - Werkstoffkurzzeichen und Werkstoffnummern This European Standard was approved by CEN on 15 January 2011. CEN members are bound
6、to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-
7、CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has
8、 the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Po
9、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by
10、 any means reserved worldwide for CEN national Members. Ref. No. EN 1560:2011: EBS EN 1560:2011EN 1560:2011 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Terms and definitions .53 Designation of cast iron materials by symbols 53.1 General 53.2 Material symbol structure .54 Designation of c
11、ast iron materials by numbers .94.1 General 94.2 Material number structure 9Annex A (normative) Overall structure for designation of cast iron materials by symbols . 12Annex B (normative) Overall structure for designation of cast iron materials by numbers 15Annex C (informative) Significant technica
12、l changes between this European Standard and the previous edition 16Bibliography . 17BS EN 1560:2011EN 1560:2011 (E) 3 Foreword This document (EN 1560:2011) has been prepared by Technical Committee CEN/TC 190 “Foundry technology”, the secretariat of which is held by DIN. This European Standard shall
13、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2011, and conflicting national standards shall be withdrawn at the latest by August 2011. Attention is drawn to the possibility that some of the elements of this documen
14、t may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1560:1997. Annex C provides details of significant technical changes between this European Standard and the previous edition. Within its
15、programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 1 “Technical conditions of delivery and cast iron designation” to revise EN 1560:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement t
16、his European Standard: Austria, Belgium, Bulgaria, Croatia, 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, Switzerla
17、nd and the United Kingdom. BS EN 1560:2011EN 1560:2011 (E) 4 Introduction Cast iron materials can be designated either by symbols or by numbers for all grades. The material number is based on principles and the structure set out in EN 10027-2. BS EN 1560:2011EN 1560:2011 (E) 5 1 Scope This European
18、Standard establishes a material designation system either by symbols or by numbers for cast iron. The designation system by symbols is applicable to: a) standardized cast iron materials (see 2.1); b) non-standardized cast iron materials (see 2.2). The designation system by numbers is only applicable
19、 to standardized cast iron materials (see 2.1). NOTE The use of a designation system by symbols does not necessarily imply that the material is standardized. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 standardized cast iron material cast
20、 iron material which has been specified in a European Standard 2.2 non-standardized cast iron material cast iron material which has not been specified in a European Standard, but is manufactured and/or used in CEN member countries 3 Designation of cast iron materials by symbols 3.1 General There sha
21、ll be only one designation by symbols for each cast iron material. 3.2 Material symbol structure 3.2.1 Overall structure The designation by symbols shall occupy a maximum of six positions. There shall be no spaces between any of the used positions. Position 1: EN- (see 3.2.2); Position 2: Symbol for
22、 cast iron (see 3.2.3); Position 3: Symbol for graphite structure (see 3.2.4); Position 4: Symbol for microstructure or macrostructure (see 3.2.5); Position 5: Symbol for classification either by mechanical properties or by chemical composition (see 3.2.6); Position 6: Symbol for additional requirem
23、ents (see 3.2.7). BS EN 1560:2011EN 1560:2011 (E) 6 The overall structure of the designation system by symbols is shown in Annex A. 3.2.2 Position 1 The prefix EN- shall only be used for standardized materials. NOTE If the European material standard (e.g. EN 1561) is presented in association with th
24、e material symbol (e.g. EN-GJL-150), then the prefix EN of the symbol designation may be omitted (e.g. EN 1561-GJL-150). 3.2.3 Position 2 The symbol GJ with G for cast and J for iron shall be used. 3.2.4 Position 3 If the graphite structure is to be specified, then the appropriate letter given in Ta
25、ble 1 shall be used. Table 1 Graphite structure L Lamellar S Spheroidal M Temper carbon (malleable) a V Vermicular N Free of graphite (hard), ledeburitic Y Special structure, identified in the relevant material standard aIncluding whiteheart malleable cast irons. 3.2.5 Position 4 If it is necessary
26、to identify cast iron materials additionally by the microstructure or the macrostructure the supplementary letters given in Table 2 shall suffix the letters given in Table 1 as appropriate. Table 2 Microstructure or macrostructure A Austenite R Ausferrite F Ferrite P Pearlite M Martensite L Ledeburi
27、te Q Quenched T Quenched and tempered B Blackheart a W Whiteheart a aOnly for malleable cast irons. BS EN 1560:2011EN 1560:2011 (E) 7 3.2.6 Position 5 3.2.6.1 General Position 5 shall be used to classify the material either by mechanical properties or by chemical composition. It shall be separated f
28、rom the last used position by a hyphen. 3.2.6.2 Classification by mechanical properties 3.2.6.2.1 General Cast iron materials classified by their mechanical properties shall be designated by figures relating to one of the following options: tensile strength, optionally with elongation followed by th
29、e letter C if the material standard permits the use of a sample cut from a casting (see Table 3) and/or impact energy followed by letters RT or LT relating to the test temperature (see Table 4); Table 3 Letter describing the production of the sample C Sample cut from a casting (blank) Cast sample NO
30、TE The former designation differentiated between separately cast samples and cast on samples. Cast sample now include separately cast samples, cast on sample and side-by-side cast sample thus reflecting the material properties in the relevant wall thickness of the casting. Table 4 Test temperature r
31、ange used to determine the impact energy value RT Room temperature LT Low temperature hardness. 3.2.6.2.2 Tensile strength The tensile strength shall be indicated by the appropriate minimum value of the grade in megapascals, e.g.: EN-GJL-150C; EN-GJL-150. If required, the elongation shall be indicat
32、ed by the appropriate minimum value of the grade in percent, which follows the indication of the minimum tensile strength. It shall be separated from the other symbols in position 5 by a hyphen, e.g.: EN-GJS-350-22C; EN-GJMW-450-7. If impact energy is required the test temperature used to determine
33、its value shall be indicated by the letters given in Table 4. BS EN 1560:2011EN 1560:2011 (E) 8 The letters given in Table 4, if required, shall follow the figures of mechanical properties. It shall be separated from the other symbols in position 5 by a hyphen, e.g.: EN-GJS-400-18-RT; EN-GJS-350-22-
34、LT. 3.2.6.2.3 Hardness When cast iron materials are classified by hardness this shall be indicated by one of the three following symbols: a) HB for Brinell hardness; b) HV for Vickers hardness; c) HR for Rockwell hardness. These letters shall be followed by two or three figures representing the hard
35、ness range, e.g.: EN-GJL-HB155; EN-GJS-HB230; EN-GJN-HV350; EN-GJN-HRC34. 3.2.6.3 Classification by chemical composition 3.2.6.3.1 Low alloyed grades When there is a need to specify the chemical elements with one decimal digit, then the symbols in position 5 shall be as follows: a) Classification wi
36、thout indication of carbon content Chemical symbols of significant alloying elements in the sequence of falling contents of the elements. The average contents of these elements shall be indicated in percentage multiplied by the factor 10. The digits for these values shall be separated from each othe
37、r by a hyphen, e.g.: EN-GJS-SiMo35-7 b) Classification with indication of the carbon content When the indication of the carbon content is required, it shall be indicated by its percentage times 100 (e.g. 300 for 3 %), preceding the chemical symbols in position 5. All other indications of chemical co
38、mposition shall follow the system according to 3.2.6.3 1, a), e.g.: EN-GJS-320SiMo45-10 3.2.6.3.2 High alloyed grades When the average content of at least one alloying element is 5 % and there is no need to classify one of the chemical elements with one decimal digit, then the letter X shall be the
39、first symbol in position 5. The remaining symbols in position 5 shall be as follows: a) Classification without indication of carbon content BS EN 1560:2011EN 1560:2011 (E) 9 The letter X shall be followed by the chemical symbols of significant alloying elements in the sequence of falling contents of
40、 the elements. The average contents of these elements shall be indicated in percentage without multiplying factor, rounded to the nearest integer. The digits for the percentages shall be separated from each other by a hyphen, e.g.: EN-GJL-XNiMn13-7 b) Classification with indication of the carbon con
41、tent When the indication of the carbon content is required, it shall be indicated by its percentage times 100 (e.g. 300 for 3 %), following the letter X. All other indications of chemical composition shall follow the system according to 3.2.6.3.2, a), e.g.: EN-GJN-X300CrNiSi9-5-2 3.2.7 Position 6 Wh
42、en cast iron materials need to be classified according to additional requirements, then the symbols given in Table 5, as applicable, shall be placed in position 6. They shall be separated from position 5 by a hyphen, e.g.: EN-GJMW-360-12S-W Table 5 Additional requirements D As-cast casting H Heat-tr
43、eated casting W Weldability for joint welds (see EN 1559-1) Z Additional requirements specified in the order 4 Designation of cast iron materials by numbers 4.1 General There shall be only one designation by numbers for each cast iron material. The designation system by numbers for cast irons is bas
44、ed on the principles and the structure as set out in EN 10027-2. 4.2 Material number structure 4.2.1 Overall structure The designation by numbers shall comprise six characters. The positions shall be in accordance with Figure 1. BS EN 1560:2011EN 1560:2011 (E) 10 Position 1 2 3 4 5 6 Character n . n
45、 n n n n: Arabic number Figure 1 Number structure The overall structure of the designation by numbers is shown in Annex B. 4.2.2 Position 1 and 2 Position 1 is the material group number, which is 5 for cast iron, followed by a dot in position 2. 4.2.3 Position 3 To specify graphite structure the app
46、ropriate number given in Table 6 shall be used. Table 6 Graphite structure 1 Lamellar 2 Vermicular3 Spheroidal 4 Temper carbon 5 Free of graphite 6 Reserve 7 Reserve8 Reserve 9 Others4.2.4 Position 4 To specify matrix structure the appropriate number given in Table 7 shall be used. Table 7 Matrix st
47、ructure 1 Ferrite 2 Ferrite/Pearlite 3 Pearlite 4 Ausferrite5 Austenite 6 Ledeburite 7 Reserve8 Reserve 9 OthersBS EN 1560:2011EN 1560:2011 (E) 11 4.2.5 Position 5 and 6 A 2-digit character from 00 to 99 representing the individual material shall be used. These numbers will be allocated by the CEN/T
48、C 190 - Working Groups, to be concerned with the applicable material standards, e.g. EN 1560, EN 1561, EN 1562, EN 1563, EN 1564, EN 12513, EN 13835, prEN 16079 and prEN 16124. BS EN 1560:2011EN 1560:2011 (E) 12 Annex A (normative) Overall structure for designation of cast iron materials by symbols
49、This annex shows the overall structure of the material symbols in accordance with Clause 3. Table A.1 Overall structure for the designation of cast iron materials by symbols Position 1 mandatory except 3.2.2 Position 2 mandatory Position 3 mandatory Position 4 optional Position 5 mandatory, choose a) or b) Position 6 optional Prefix Type of metal Graphite structure Microstructure or macrostructure a) mechanical properties b) chemical composition Additional requirements Symbol Symbol Symbol Sym
