1、BSI Standards PublicationBS EN 10303:2015Thin magnetic steel stripand sheet for use at mediumfrequenciesBS EN 10303:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 10303:2015.It supersedes BS EN 10303:2001 which is withdrawn.The UK participation in its prep
2、aration was entrusted to TechnicalCommittee ISE/108, Magnetic Alloys and Steels.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its corre
3、ctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 83973 3ICS 77.140.40; 77.140.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy an
4、d Strategy Committee on 31 October 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 10303:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10303 October 2015 ICS 77.140.40; 77.140.50 Supersedes EN 10303:2001English Version Thin magnetic steel strip and she
5、et for use at medium frequencies Bandes et tles extra-minces en acier lectrique pour utilisation moyennes frquences Dnnes Elektroband und -blech aus Stahl zur Verwendung bei mittleren Frequenzen This European Standard was approved by CEN on 29 August 2015. CEN members are bound to comply with the CE
6、N/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-CENELEC Management Ce
7、ntre 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 the same status as t
8、he official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nethe
9、rlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rig
10、hts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10303:2015 EBS EN 10303:2015EN 10303:2015 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Classification . 6 5 Designation 6 6 Informat
11、ion to be supplied by purchaser. 6 6.1 Mandatory information 6 6.2 Options 7 7 General requirements . 7 7.1 Production process . 7 7.2 Form of supply 7 7.3 Delivery condition 7 7.4 Surface condition 8 7.5 Suitability for cutting . 8 8 Technical requirements 8 8.1 Magnetic properties . 8 8.1.1 Magnet
12、ic polarization 8 8.1.2 Specific total loss . 8 8.2 Mechanical properties at room temperature for non-oriented products . 10 8.3 Geometric characteristics and tolerances 10 8.3.1 Thickness of grain-oriented steel products 10 8.3.2 Thickness of non-oriented steel products 11 8.3.3 Width 12 8.3.4 Edge
13、 camber . 12 8.3.5 Residual curvature 13 8.3.6 Burr height . 13 8.4 Technological characteristics 13 8.4.1 Density . 13 8.4.2 Stacking factor . 13 8.4.3 Number of bends 13 8.4.4 Insulation coating resistance . 13 9 Inspection . 13 9.1 General . 13 9.2 Selection of samples 14 9.3 Preparation of test
14、specimens . 14 9.3.1 Magnetic properties 14 9.3.2 Mechanical properties 15 9.3.3 Geometrical characteristics and tolerances . 15 9.3.4 Technological characteristics 15 9.4 Test methods . 15 9.4.1 General . 15 9.4.2 Magnetic properties 15 BS EN 10303:2015EN 10303:2015 (E) 3 9.4.3 Mechanical propertie
15、s 16 9.4.4 Geometrical characteristics and tolerances . 16 9.4.5 Technological characteristics 16 9.4.6 Retests 17 10 Marking, labelling and packaging . 17 11 Complaints 17 Annex A (informative) Minimum stacking factor for non-oriented coated products . 18 Annex B (informative) Maximum specific tota
16、l loss at 1,0T and 700 Hz and at 1,5T and 400Hz for non-oriented products . 19 Annex C (informative) Density determination 20 Annex D (informative) Mechanical properties for non-oriented products 21 Annex E (informative) Changes to the previous version EN 10303:2001 . 22 Bibliography . 23 BS EN 1030
17、3:2015EN 10303:2015 (E) 4 European foreword This document (EN 10303:2015) has been prepared by Technical Committee ECISS/TC 108 “Steel sheet and strip for electrical applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, eithe
18、r by publication of an identical text or by endorsement, at the latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CE
19、NELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10303:2001. Regarding the changes that were made in this new edition of EN 10303, see Annex E. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
20、 following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla
21、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 10303:2015EN 10303:2015 (E) 5 1 Scope This European Standard defines the grades of thin non-oriented magnetic steel strip and sheet in nominal thicknesses of 0,05 mm, 0,10 mm,
22、 0,15 mm, 0,20 mm, 0,25 mm, 0,27 mm, 0,30 mm and 0,35 mm, and of thin grain-oriented magnetic steel strip and sheet in nominal thicknesses of 0,05 mm, 0,10 mm, 0,15 mm and 0,18 mm. In particular, it gives general requirements, magnetic properties, geometric characteristics and tolerances and technol
23、ogical characteristics, as well as inspection procedure. This European Standard applies to magnetic steel strip and sheet supplied in the finally annealed condition in coils and intended for the construction of magnetic circuits used at frequencies equal to or higher than 100 Hz. 2 Normative referen
24、ces The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN
25、10021, General technical delivery conditions for steel products EN 10204, Metallic products Types of inspection documents EN 10251, Magnetic materials Methods of determination of the geometrical characteristics of electrical steel sheet and strip EN 60404-2, Magnetic materials Part 2: Methods of mea
26、surement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame (IEC 60404-2) EN 60404-13, Magnetic materials Part 13: Methods of measurement of density, resistivity and stacking factor of electrical steel sheet and strip (IEC 60404-13) EN ISO 377, Steel and stee
27、l products Location and preparation of samples and test pieces for mechanical testing (ISO 377) EN ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-1) EN ISO 7799, Metallic materials Sheet and strip 3 mm thick or less Reverse bend test (ISO 7799) IE
28、C 60050-121, International Electrotechnical Vocabulary Chapter 121: Electromagnetism IEC 60050-221, International Electrotechnical Vocabulary Chapter 221: Magnetic materials and components IEC 60404-10, Magnetic materials Part 10: Methods of measurement of magnetic properties of magnetic sheet and s
29、trip at medium frequencies 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-121, IEC 60050-221 and the following apply. BS EN 10303:2015EN 10303:2015 (E) 6 3.1 number of bends number of alternate bends possible before the appearance of the first
30、 crack in the base metal visible to the naked eye indicating the ductility of the material 3.2 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 4 Classification The grades covered by this European Stan
31、dard are classified according to the maximum value of the specific total loss, in watts per kilogram, and according to the nominal thickness of the material (0,05 mm; 0,10 mm; 0,15 mm; 0,20 mm; 0,25 mm, 0,27 mm, 0,30 mm and 0,35 mm for non-oriented steel, respectively 0,05 mm; 0,10 mm, 0,15 mm and 0
32、,18 mm for grain-oriented steel). 5 Designation The conventional designation of the different grades comprises the following in the order: a) the characteristic letters: 1) NO for non-oriented strip and sheet; 2) GO for grain-oriented strip and sheet; b) 100 times the nominal thickness of the materi
33、al, in millimetres; EXAMPLE NO 20: non-oriented strip in thickness of 0,20 mm. c) maximum specific total loss by given frequency in cases where steel grades with different values for maximum specific total loss per nominal thickness are stated (see Table 2). 6 Information to be supplied by purchaser
34、 6.1 Mandatory information For material to comply adequately with the requirements of this standard, the purchaser shall include the following information in his enquiry or order: a) the quantity required (including any limitations on the mass of a coil) (see 7.2); b) type of product (strip or sheet
35、); c) number of this European Standard (EN 10303); d) the grade designation of the material, in accordance with Clause 5; e) the dimensions of strips required (including any limitations of the internal and external diameter of a coil) (see 7.2 and 8.3.2); f) the inspection procedure required includi
36、ng the nature of the related documents (see 9.1); BS EN 10303:2015EN 10303:2015 (E) 7 6.2 Options A number of options are specified in this standard and listed below. lf the purchaser does not indicate his wish to implement one of these options, the products shall be supplied in accordance with the
37、basis specification of this standard (see 6.1): 1) presence of welds or interleaves and their optional marking (see 7.2); 2) compatibility of the surface insulation coating (see 7.4); 3) residual curvature (see 8.3.5); 4) insulation coating resistance (see 8.4.4). 5) mechanical properties for non-or
38、iented products (see Table D.1) 7 General requirements 7.1 Production process The production process of the steel and its composition are left to the discretion of the manufacturer. 7.2 Form of supply The material is supplied in coils. The mass of coils shall be agreed at the time of ordering. The r
39、ecommended value for the internal diameter of coils is approximately 400 mm except for non-oriented strip in thickness of 0,20 mm; 0,25 mm, 0,27 mm, 0,30 mm and 0,35 mm, and grain-oriented strip in thickness of 0,18 mm for which the recommended internal diameter is approximately 500 mm. The strip sh
40、all be of constant width and wound in such a manner that the edges are super-imposed in a regular manner and that the side faces of the coil are substantially flat. The coils shall be sufficiently tightly wound that they do not collapse under their own weight. The strip can occasionally exhibit weld
41、s 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 the agreement. If necessary the marking of welds or interleaves may form the subject of a special agreement. For coils c
42、ontaining repair welds or interleaves, each part of the strip shall be of the same grade material. The edges of parts welded together shall not be so much out of alignment as to affect the further processing of the material. 7.3 Delivery condition Products according to this standard are delivered ei
43、ther with a coating on one or on both sides but also without coating. Different types of coating can be provided. BS EN 10303:2015EN 10303:2015 (E) 8 7.4 Surface condition The surfaces shall be smooth and clean and free from grease and rust.1)Dispersed defects such as scratches, blisters, cracks, et
44、c. are permitted if the products are within the tolerances and if these defects are not detrimental to the correct use of the supplied material. Any insulation coating on the surface of the material shall be sufficiently adherent so as not to become detached during heat treatment under conditions sp
45、ecified by the supplier or during cutting operations. If the product is to be immersed in a fluid or is to be given an additional coating or impregnation, an agreement initiated by the purchaser should be reached with the supplier to ensure compatibility with the surface insulation coating. 7.5 Suit
46、ability for cutting The material shall be capable of being cut at any point and into the usual shapes thus ensuring accurate working with the correct cutting tools. 8 Technical requirements 8.1 Magnetic properties 8.1.1 Magnetic polarization The minimum specified values of magnetic polarization for
47、a magnetic field strength of 800 A/m (peak value) and at the frequency specified in Table 1 for grain-oriented material shall be as given in Table 1. The minimum specified values of magnetic polarization for a magnetic field strength of 2 500 A/m (peak value) and at the frequency specified in Table
48、2 for non-oriented material shall be as given in Table 2. 8.1.2 Specific total loss The specified maximum values of specific total loss shall be as given in Tables 1 and 2 and reflect the aged conditions (see 9.3.1). For grain-oriented electrical steel they also apply to test specimens that have rec
49、eived, after cutting, a stress relief heat treatment under conditions specified by the manufacturer. Depending on the thicknesses, the values are specified at 1,0 T for the non-oriented steel and at 1,0 T or 1,5 T for the grain-oriented material and at the frequency specified in Tables 1 and 2. 1) This should not be confused with some coloration of the insulating coating inherent in the manufacturing process. BS EN 10303:2015EN 10303:2015 (E) 9 Table 1 Magnetic and technological characteristics of grain-oriented strip Designation Nominal thickness mm
