1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD ICS 77.120.60; 77.150.60
2、NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Zinc and zinc alloys Alloys for foundry purposes Ingot and liquid BS EN 1774:1997 Incorporating corrigenda June 1998 and June 2009This British Standard was published under the authority of the Standards Board and comes into effec
3、t on 15 January 1998 BSI 2009 ISBN National foreword This British Standard is the UK implementation of EN 1774:1997. Together with BS EN 12844:1999 it partially supersedes BS 1004:1972 and DD 139:1986, which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee
4、NFE/8, Zinc and zinc alloys. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standa
5、rd cannot confer immunity from gal obligations. le Institute of Trading Standards Administration Institution of Incorporated Executive Engineers National Standards Authority of Ireland Amd. No. Date Comments 10047 Corr. No. 1 June 1998 Addition of supersession details in National Foreword Supersessi
6、on details updated in National Foreword, and alignment of 9 7 8 0 5 8 0 6 7 5 2 8 7BS EN 1774:1997 Amendments /corrigenda issued since publication 30 June 2009BSI and CEN publication datesCEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung
7、Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1774 : 1997 E EUROPEAN STANDARD EN 1774 NORME EUROPE ENNE EUROPA ISCHE NORM September 1997 ICS 77.120.60; 77.150.60 Descr
8、iptors: Zinc, zinc alloys, ingots, liquids, designation, specifications, chemical composition, marking, labelling English version Zinc and zinc alloys Alloys for foundry purposes Ingot and liquid Zinc et alliages de zinc Alliages pour fonderie Lingots et liquide Zink und Zinklegierungen Gulegierunge
9、n In Blockform und in flu ssiger Form This European Standard was approved by CEN on 9 August 1997. CEN members are bound 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-t
10、o-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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
11、 the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem
12、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Foreword This European Standard has been prepared by Technical Committee CEN/TC 209, Zinc and zinc alloys, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national sta
13、ndard, either by publication of an identical text or by endorsement, at the latest by March 1998, and conflicting national standards shall be withdrawn at the latest by March 1998. Within its programme of work Technical Committee CEN/TC 209 requested CEN/TC 209/SC 4, Casting alloys and castings, to
14、prepare the following standard: EN 1774 Zinc and zinc alloys Alloys for foundry purposes Ingots and liquid This European standard is one a series concerning zinc and zinc alloys for foundry purposes. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follo
15、wing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Norma
16、tive references 3 3 Definitions 3 4 Alloy designation 3 4.1 General 3 4.2 Designation of zinc alloys by symbol 3 4.3 Designation of zinc alloys by number 3 4.4 Colour code 3 4.5 Short designation 3 5 Manufacture 3 6 Ordering information 4 7 Requirements 4 7.1 Chemical composition 4 7.2 Shape of ingo
17、ts 4 7.3 Surface condition of ingots 4 8 Sampling 4 9 Marking and labelling 4 9.1 Ingot 4 9.2 Bundle and jumbo 4 10 Inspection documents 4 Annex A (informative) Relationship between the alloy designations used in this standard and the corresponding designations previously used in a number of countri
18、es 6 BS EN 1774:1997 EN 1774:1997 21 Scope This European Standard specifies the designations, chemical compositions, marking and other requirements for zinc alloys, in ingots or liquid form, produced for foundry purposes. 2 Normative references This European Standard incorporates by dated or undated
19、 reference, provisions 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 inc
20、orporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 1179 Zinc and zinc alloys Primary zinc prEN 12019 Zinc and zinc alloys Optical emission spectrometric analysis prEN 12060 Zinc and zinc alloys Method of sampling Specificati
21、ons ISO 301 : 1981Zinc alloy ingots intended for casting 3 Definitions For the purpose of this European Standard, the following definitions apply. 3.1 ingot Cast product intended for remelting. 3.2 jumbo Large ingot, not suitable for manual handling, weighing at least 30 kg. Normally a jumbo weighs
22、several hundred kilograms. 3.3 bundle Collection of ingots taken from one or more batches (see 3.6) and secured, for example by banding, for the purposes of handling, shipment and storage. 3.4 zinc alloys Zinc with additions of one or more alloying elements, such as: Al, Mg, Cu, Cr, Ti. NOTE. Zinc a
23、lloys are normally supplied in ingot form, but may be available in liquid form. 3.5 cast 3.5.1 cast from non-continuous casting Product of one furnace or crucible melt. 3.5.2 cast from continuous casting Identified quantity of liquid metal. 3.6 batch Number of ingots or identified quantity of liquid
24、 metal, taken from a single cast. 4 Alloy designation 4.1 General Zinc alloys conforming to this standard are designated either by symbol (see 4.2) or by number (see 4.3). For marking and labelling purposes only (see clause 9) the short designation and/or colour code may be used (see 4.4 and 4.5). N
25、OTE. Informative annex A gives the relationship between the former national alloy designations and those designations used in this standard. 4.2 Designation of zinc alloys by symbol The designation by symbol is derived from the designation system given in ISO 301 : 1981. EXAMPLE: ZnAl4Cu1 designates
26、 a zinc alloy containing, nominally, 4 % aluminium and 1 % copper. 4.3 Designation of zinc alloys by number The designation by number shall consist of two letters ZL (denoting zinc alloy) and four numerals, having the following significance: the first two numerals indicate the nominal aluminium cont
27、ent; the third numeral indicates the nominal copper content; and the fourth numeral indicates the nominal content of the next highest alloying element. If this is less than 1 %, the fourth numeral shall be 0. 4.4 Colour code The alloy colour code shall consist of two colours. The colours shall be as
28、 given in table 1, in relation to the alloy symbols or alloy numbers. 4.5 Short designation The short designation of the alloy shall consist of the two letters ZL, followed by one or two numerals. The short designations shall be as indicated in table 1, in relation to the alloy symbol or alloy numbe
29、r. NOTE. For a transitional period of five years from the date of publication of this standard, the short designation, when used as an ingot mark (see 9.1), may be composed in a different form from that given in 4.5, provided that the numerals specified in the short designation in table 1 are used.
30、5 Manufacture The zinc alloy shall be manufactured from: a) zinc ingots or liquid zinc conforming to grade Z1 of EN 1179, with the addition of appropriate alloying elements (see table 1); and/or b) identifiable casting process returns, e.g. sprues, runners and overflows; and/or c) identifiable casti
31、ngs rejected from the foundry, or after secondary operations. Used, recycled materials and all other materials, which could cause contamination, such as shredder scrap, shall not be used. BS EN 1774:1997 EN 1774:1997 36 Ordering information In order to facilitate the enquiry, order and confirmation
32、of order procedures between the supplier and the purchaser, the purchaser shall state on the enquiry and order the following information: a) the number of this European Standard (EN 1774); b) the designation of the zinc alloy required, by either symbol or number (see 4.2 and 4.3); c) the total mass
33、required, and whether ingot or liquid form is required; d) whether a specific ingot shape is required (see 7.2); e) whether a certificate of chemical composition or a declaration of conformity is required (see clause 10). 7 Requirements 7.1 Chemical composition The ingots or liquid shall conform to
34、the requirements for chemical composition given for the appropriate alloy in table 1. NOTE. Methods of analysis, for use in cases of dispute, are given in prEN 12019. In expressing the results for the analysis, the values obtained shall be rounded in one step to the same number of figures used to ex
35、press the specified limit in table 1. The following rules shall be used for rounding. a) If the figure immediately after the last figure to be retained is less than five, the last figure to be retained shall be kept unchanged. b) If the figure immediately after the last figure to be retained is equa
36、l to or greater than five, the last figure to be retained shall be increased by one. 7.2 Shape of ingots The shape of ingots shall be at the discretion of the supplier, unless a specific shape is agreed between the purchaser and the supplier at the time of ordering (see clause 6d). 7.3 Surface condi
37、tion of ingots The surface condition of the ingots shall be such that it does not affect the chemical composition and is not detrimental to the use of the ingots. 8 Sampling Sampling of zinc alloy ingots and liquid, for verification of compliance with the chemical composition requirements shall be i
38、n accordance with prEN 12060. 9 Marking and labelling 9.1 Ingot Each ingot shall be marked with the following minimum information: a) name or identification of manufacturer; b) the zinc alloy designation, by alloy symbol and/or number, and/or colour code, and/or short designation (see clause 4 and t
39、able 1). NOTE. If the ingots are permanently marked with the letters ZL and are to be colour coded, then the first colour (white) may be omitted and only the second colour, as given in table 1, is needed in order to identify the alloy. 9.2 Bundle and jumbo Each bundle of ingots, each bundle of small
40、 jumbos and each individually supplied jumbo shall be marked, or labelled, with the following minimum information: a) name or identification of manufacturer; b) the zinc alloy designation, by alloy symbol, and/or alloy number, and/or colour code, and/or short designation (see clause 4 and table 1);
41、NOTE. If the ingots are permanently marked with the letters ZL and are to be colour coded, then the first colour (white) may be omitted and only the second colour, as given in table 1, is needed in order to identify the alloy. c) the batch or cast reference; d) total mass of the bundle, or the mass
42、of each individual jumbo. 10 Inspection documents If requested by the purchaser at the time of ordering, the supplier shall furnish inspection documents with each consignment. The documentation shall be as chosen by the purchaser (see clause 6e), and shall be in accordance with either a) or b) as fo
43、llows: a) a certificate of chemical composition, giving the results obtained on the specific casts in the consignment; b) a declaration of conformity, of the consignment with the order requirements. This declaration shall include the following information: 1) name and address of supplier; 2) date of
44、 declaration of conformity; 3) name and address of purchaser; 4) purchasers order number; 5) a description of the goods and the quantity supplied; 6) identification of this standard and the designation(s) of the alloy(s) supplied; 7) the following declaration: The goods detailed hereon have been man
45、ufactured to conform with the requirements of the purchasers order and to the description, quantity and specification detailed thereon. Signed : (Suppliers authorized representative) BS EN 1774:1997 EN 1774:1997 4Table 1. Chemical composition of zinc alloy ingot and liquid Composition in % (mass fra
46、ction) Alloy symbol Colour code Alloy number Short designation Element Al Cu Mg Cr Ti Pb Cd Sn Fe Ni Si Zn ZnAl4 white/yellow ZL0400 ZL3 min. max. 3,8 4,2 0,03 0,035 0,06 0,003 0,003 0,001 0,020 0,001 0,02 Remainder ZnAl4Cu1 white/black ZL0410 ZL5 min. max. 3,8 4,2 0,7 1,1 0,035 0,06 0,003 0,003 0,0
47、01 0,020 0,001 0,02 Remainder ZnAl4Cu3 white/green ZL0430 ZL2 min. max. 3,8 4,2 2,7 3,3 0,035 0,06 0,003 0,003 0,001 0,020 0,001 0,02 Remainder ZnAl6Cu1 white/white ZL0610 ZL6 min. max. 5,6 6,0 1,2 1,6 0,005 0,003 0,003 0,001 0,020 0,001 0,02 Remainder ZnAl8Cu1 white/blue ZL0810 ZL8 min. max. 8,2 8,
48、8 0,9 1,3 0,02 0,03 0,005 0,005 0,002 0,035 0,001 0,035 Remainder ZnAl11Cu1 white/orange ZL1110 ZL12 min. max. 10,8 11,5 0,5 1,2 0,02 0,03 0,005 0,005 0,002 0,05 0,05 Remainder ZnAl27Cu2 white/violet ZL2720 ZL27 min. max. 25,5 28,0 2,0 2,5 0,012 0,02 0,005 0,005 0,002 0,07 0,07 Remainder ZnCu1CrTi w
49、hite/brown ZL0010 ZL16 min. max. 0,01 0,04 1,0 1,5 0,02 0,1 0,2 0,15 0,25 0,005 0,004 0,003 0,04 0,04 Remainder BS EN 1774:1997 EN 1774:1997 5Annex A (informative) Relationship between the alloy designations used in this standard and the corresponding designations previously used in a number of countries Table A.1 Former national alloy designations and corresponding designations
