1、BRITISH STANDARD Magnetic materials (iron and steel) for use in relays The European Standard EN 10304:2001 has the status of a British Standard ICs 29.030 BS EN 10304:ZOO 1 O NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 10304:2001 Amd. No. National foreword Date Comme
2、nts This British Standard is the official English language version of EN 10304:2001. It supersedes BS 6404-8.10:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/5, Magnetic alloys and steels, which has the responsibility to: - - aid enquir
3、ers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on
4、this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”
5、, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself conf
6、er immunity from legal obligations. This British Standard, havine: been prepared under the - direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on Summary Of pages This document comprises a front cover, an inside front co
7、ver, the EN title page, pages 2 to 19 and a back cover. The BSI copyright date displayed in this document indicates when the 15 June 2001 document was last issued. Amendments issued since publication O BSI 06-2001 I I ISBN O 580 37000 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10304 Apri
8、l 2001 ICs 77.140.40; 77.140.50 English version Magnetic materials (iron and steel) for use in relays Matriaux magntiques pour relais (fer et acier) Magnetische Relaiswerkstoffe (Eisen und Stahl) This European Standard was approved by CEN on 8 March 2001. CEN members are bound to comply with the CEN
9、EENELEC 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 Management Centre or to any
10、 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 Management Centre has the same status as the official versions. CEN
11、members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORM
12、UNG COMITE EUROPEEN DE NORMALISATION Management Centre: rue de Stassart, 36 8-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10304:2001 E Page 2 EN 10304:2001 Contents Foreword 3 1 2 3 4 5 6 6.1 6.2 6.3 6.4 7
13、7.1 7.2 8 8.1 8.2 8.3 8.4 9 10 11 Scope 4 Normative references 4 Terms and definitions 4 Classification 5 Designation . 5 General requirements 6 Form of supply . 6 Delivery conditions 7 Surface condition . 7 Technical requirements . 7 Magnetic properties . 7 Geometric characteristics and tolerances
14、7 Inspection . 16 Selection of samples . 16 Preparation of test specimens 16 Test methods 17 Complaints 18 Ordering information . 18 Production process . 6 General 16 Marking, labelling and packaging 18 Bibliography 19 Page 3 EN 10304:2001 Foreword This European Standard has been prepared by Technic
15、al Committee ECISSTC 24 “Electrical steel sheet and strip qualities - Qualities, dimensions, tolerances and specific tests“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement,
16、 at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. This Standard is based on IEC 60404-8-10. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
17、 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. .n + , Page 4 EN 10304:2001 1 Scope This European Standard specifies the magnetic ma
18、terials used principally for relays. In particular it specifies general requirements, the magnetic properties, geometric characteristics and tolerances. This European Standard applies to pure iron and steel products generally delivered in the semi-processed state. These materials correspond to claus
19、es A, 6, C1 and C2 of IEC 60404-1. 2 Normative references This European Standard incorporates by dated or undated 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,
20、 subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 10021, General technical delivery req
21、uirements for steel and steel products. EN 10029, Hot rolled steel plates 3 mm thick and above - Tolerances on dimensions, shape and mass. O EN 10051, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels - Tolerances on dimensions and shape. EN 1 O1 31, Cold rolled u
22、ncoated low carbon and high yield strength steel flat products for cold forming - Tolerances on dimensions and shape. EN 10204, Metallic products - Types of inspection documents. EN 10251, Magnetic materials - Methods of determination of the geometrical characteristics of magnetic steel sheet and st
23、rip. prEN 10058:2000, Hot rolled flat for general purposes. prEN 1 0059:2000, Hot rolled square for general purposes. O prEN 10060:2000, Hot rolled round for general purposes. IEC 60050 (221), International Electrotechnical Vocabulary (IEV) - Chapter 221 : Magnetic materials and components. IEC 6040
24、4-7, Magnetic materials - Part 7 : Method of measurement of the coercivity of magnetic materials in an open magnetic circuit. EN 20286-1, /SO system of limits and fits - Part 1: Bases of tolerances, deviations and fits (IS0 286-1:1988) IS0 8457-1, Steel wire rod : Part 1 : Dimensions and tolerances.
25、 3 Terms and definitions For the purposes of this European Standard the terms and definitions given in IEC 60050 (221) and the following apply. 3.1 sheet and plate flat rolled product with a width of 600 mm or over NOTE 1 The edges are as rolled, sheared or flame cut. Page 5 EN 10304:2001 NOTE 2 O 3
26、 mm or over. A distinction is made between sheets which have a thickness up to 3 mm and plates which have a thickness of 3.2 strip flat rolled product which immediately after the final rolling pass or after pickling or continuous annealing is wound into a regular coil NOTE As rolled strip has slight
27、ly convex edges, but may also be supplied with sheared edges or slit from wider strip 3.3 flats products of rectangular cross section rolled on the four faces of thickness generally 5 mm or greater and width not greater than 150 mm 3.4 rounds products having a circular cross section of diameter gene
28、rally 8 mm or greater :;luares products having a square cross section whose side is generally 8 mm or greater 3.6 wire rod hot rolled long product having a nominal size generally of 5 mm or greater and wound into irregular coils NOTE shape. The cross section may be round, oval, square, rectangular,
29、hexagonal, octagonal, halfround or of any similar , 3.7 wire product of constant full cross section along its length, obtained by cold drawing and which can be wound into irregular or regular coils NOTE rewinding the drawn product. It is obtained by cold drawing wire rod through a reducing die or pa
30、ssing under pressure between rollers and 3.8 edge camber greatest distance between a longitudinal edge of the sheet and the line joining the two extremities of the measured length of this edge O 4 Classification The materials covered by this standard are classified according to the maximum value of
31、coercivity, the shape and dimensions of the material and its final condition. Not all materials are available in the cold rolled condition throughout the thickness range. 5 Designation The conventional designation of the material comprises the following in the order given : the letter M ; the specif
32、ied maximum value of coercivity in A/m ; one of the following symbols : F : for pure iron ; Page 6 EN 10304:ZOOl T : for alloy steel ; U : for non-alloy steel ; the final condition as indicated below : H : hot rolled ; C : cold rolled or cold drawn ; for example : M 80 TH: alloy steel with a specifi
33、ed maximum coercivity of 80 A/m in the hot rolled condition. 6 General requirements 6.1 Production process The production process of the products defined by this standard is left to the discretion of the manufacturer. 6.2 Form of supply 6.2.1 Strip The materials are supplied in the hot or cold rolle
34、d conditions. The coils shall have a minimum internal diameter of approximatively 500 mm. The strip shall be of constant width and wound in such a manner that the edges are superimposed in a regular manner and that the side faces of coil are substantially flat. The coils shall be sufficiently tightl
35、y wound so that they do not collapse under their own weight. The strip can occasionally exhibit welds or interleaves resulting from the removal of defective zones subject to prior agreement between the parties. The value of the additional thickness due to the weld is subject to agreement. If necessa
36、ry the marking of welds or interleaves may form the subject of a special agreement. For coils containing repair welds or interleaves, each part of the strip shall be of the same quality material. O The edges of parts welded together shall not be so much out of alignment as to affect the further proc
37、essing of the material. The mass of coils shall be agreed at the time of ordering. 6.2.2 Sheet and plate This material may be supplied in the hot or cold rolled conditions. The edges of the sheet or plate, parallel to the rolling direction shall be as rolled, mechanically sheared or flame cut. 6.2.3
38、 Fiats and bars The material may be supplied in the hot or cold rolled conditions or cold drawn condition. 6.2.4 Wire rod and wires Wire rod and wires are delivered respectively in the hot rolled condition and in the drawn condition. These products are delivered in the form of coils ; the mass of th
39、e coils shall be defined at the time of ordering. O Page 7 EN 10304:2001 Type of product Strip 6.3 Delivery conditions The different types of delivery condition are given in Table 1 Hot rolled Cold rolled Cold drawn Semi-processed condition a X X X Table 1 - Delivery conditions Sheet Plate X X X X X
40、 Flat and bar Wire rod X X X X X Wire 1 6.4 Surface condition The surfaces of the product shall be smooth, clean and free from grease and rust. X X I Isolated imperfections such as scratches, blisters etc may be tolerated if the thickness remains within the tolerance limits. The nature of the surfac
41、e condition will depend on the final treatment. For material in the hot rolled condition, the material exhibits a hot mill scale. 7 Technical requirements 7.1 Magnetic properties The specified maximum value of coercivity shall be as given in Table 2. Table 2 - Coercivity Grade M 40 M 60 M 80 M 120 M
42、 240 Maximum coercivity in Aim 40 60 80 120 240 If properties in the aged condition are required, they shall be the subject of prior agreement together with the conditions of the ageing treatment. 7.2 Geometric characteristics and tolerances 7.2.1 Thickness Hot rolled flat products The tolerances on
43、 thickness shall be as given in Table 3 for strip and sheet and in Table 4 for plate. Page 8 EN 10304:2001 Table 3 - Tolerances on thickness for continuously hot rolled strip and sheet a Nominal thickness I2,OO 2,OO I2,50 2,50 I3,OO 3,OO I4,OO 4,00 I5,OO 5,OO I6,OO 6,OO I 8,OO 8,OO I 10,OO 10,OO I 1
44、2,50 12,50 I 15,OO 15,OO I25,OO a As defined in EN 10051. Dimensions in millimetres Tolerances for a nominal width of I 1 200 f 0,17 f 0,18 f 0,20 f 0,22 f 0,24 f 0,26 f 0,29 f 0,32 f 0,35 f 0,37 f 0,40 1 200 Il 500 f 0,19 f 0,21 f 0,22 f 0,24 f 0,26 f 0,28 f 0,30 f 0,33 f 0,36 f 0,38 f 0,42 1 500 I
45、l 800 f 0,21 f 0,23 f 0,24 f 0,26 f 0,28 f 0,29 i 0,31 f 0,34 f 0,37 f 0,40 f 0,45 1 800 f 0,25 fi 0,26 f 0,27 f 0,29 f 0,31 f 0,35 f 0,40 f 0,43 f 0,46 f 030 Nominal thickness 23 c5 25 c8 28 c15 215 c25 225 c40 240 c80 280 e 150 2 150 c200 Table 4 - Tolerances on thickness for hot rolled plate a To
46、lerances on the nominal thickness f 0,6 f 0,75 f 0,85 f 0,95 f 1,l f 1,2 f 1,6 f 1,8 Dimensions in millimetrei Maximum thickness difference within a plate 2 4 O00 i As defined in EN 10029. Page 9 EN 10304:2001 1200 Il 500 The tolerances on thickness shall be as given in Table 5. I0,40 0,40 I0,60 0,6
47、0 I0,80 Table 5 - Tolerances on thickness for cold rolled flat products a 10,04 10,05 10,05 10,06 10,07 10,06 10,07 10,08 Normal tolerances for a nominal width Il 500 Nominal thickness t 0,025 t 0,035 t0,040 t0,045 f:O,O55 f:O,O7 f:O,O8 k0,lO k0,ll I 0,035 I 0,045 10,05 f 0,06 10,07 I 0,08 10,09 I0,
48、ll *0,12 0,80 I1,OO l,oo I1,20 1,20 I1,60 1,60 I2,OO 2,00 12,50 2,50 I3,OO 10,07 * 0,08 *0,10 10,12 10,14 10,16 10,08 10,09 * 0,09 f 0,lO *0,11 *0,11 10,13 10,13 10,15 10,15 10,17 10,17 Dimensions in millimetres Special tolerances for a nominal width Nominal thickness Tolerances I 20 20I40 1 500 I 0
49、,5 I1 f: 0,05 f: 0,05 f: 0,06 * 0,07 f 0,08 f 0,09 f 0,ll f 0,12 I a As defined in EN 10131. 7.2.1.3 Hot rolled flats The tolerances in thickness shall be as given in Table 6. 02 1 Table 6 - Tolerances on thickness for hot rolled flats a 40 I 60 a As defined in orEN 10058:2000. I I 1,5 7.2.2 Diameter or size of long products 7.2.2.1 Hot rolled rounds The tolerances on the diameter shall be as given in Table 7. Page 10 EN 10304:2001 Nominal diameter 28 115 15 I25 25 135 35 I50 50 180 80 1100 loo I120 120 I160 160 1200 Tolerance I 0,4 I 0,5 I 0,6 0,8 11 I 1,3 I 1,5 12 * 2,5
