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1、BRITISH STANDARD BS EN 10331:2003 Magnetic materials Specification for sintered soft magnetic materials The European Standard EN 10331:2003 has the status of a British Standard ICS 29.030 ? Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI BS EN 103
2、31:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2 May 2003 BSI 2 May 2003 ISBN 0 580 41786 7 National foreword This British Standard is the official English language version of EN 10331:2003. It supersedes BS 6404-8.9:1995 which is wi
3、thdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/5, Magnetic alloys and steels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards whic
4、h implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/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. Summary of pages This document comprises a front cover, an inside front cover, the EN title p
7、age, pages 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI EUROPEAN S
8、TANDARD NORME EUROPENNE EUROPISCHE NORM EN 10331 April 2003 ICS 29.030 English version Magnetic materials - Specification for sintered soft magnetic materials Matriaux magntiques - Spcification des matriaux magntiques doux fritts Magnetische Werkstoffe - Anforderungen an weichmagnetische Sintermetal
9、le This European Standard was approved by CEN on 21 February 2003. 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-to-date lists and bibliographical
10、 references concerning such national standards may be obtained on application to the 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 membe
11、r into its own language and notified to the Management Centre 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, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
12、Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reser
13、ved worldwide for CEN national Members. Ref. No. EN 10331:2003 E Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI EN 10331:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Symbols5 5General requirements5
14、5.1Manufacturing process .5 5.2State of delivery .5 5.3Properties .5 5.4Chemical composition.5 5.5Dimensions.5 6Measurements5 6.1Scope of test and sampling5 6.2Determination of magnetic properties.6 6.3Determination of density.6 6.4Determination of hardness .6 7Classification6 8Designation.6 9Orderi
15、ng information.6 Bibliography9 Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 3 Foreword This document (EN 10331:2003) has been prepared by Technical Committee ECISS/TC 24, “Electrical steel sheet and strip qualities - Qualiti
16、es 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, at the latest by October 2003, and conflicting national standards shall be wi
17、thdrawn at the latest by October 2003. This document is equivalent to IEC 60404-8-9. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, F
18、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 4 1 Scope
19、This European Standard specifies some magnetic and mechanical properties of sintered soft magnetic metals which are used for components made by a powder metallurgical process only. This standard does not apply to magnetically soft castings or to semi-finished products. 2 Normative references This Eu
20、ropean 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, subsequent amendments to or revisions of any of these publicati
21、ons 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). prEN 10281, Magnetic materials Methods of measurement of the magnetic properties of isotropic nickel-iro
22、n soft magnetic alloys, types E1, E3 and E4. EN 24498-1, Sintered metal materials, excluding hardmetals - Determination of apparent hardness - Part 1: Materials of essentially uniform section hardness (ISO 4498-1:1990) IEC 60050-121:1998, International Electrotechnical Vocabulary (IEV) Chapter 121:
23、Electromagnetism. IEC 60050-221:1990, International Electrotechnical Vocabulary (IEV) Chapter 221: Magnetic materials and components. EN ISO 2738, Sintered metal materials, excluding hardmetals - Permeable sintered metal materials Determination of density, oil content and open porosity (ISO 2738:199
24、9). ISO 3369, Impermeable sintered metal materials and hardmetals Determination of density. ISO 4498-2, Sintered metal materials, excluding hardmetals Determination of apparent hardness Part 2: Case- hardened ferrous materials, surface enriched by carbon or carbon and nitrogen ISO 5755, Sintered met
25、al materials Specifications. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in IEC 60050-121:1998 and IEC 60050-221:1990, and the following apply: 3.1 sintered density, s quotient of mass m and volume V of the sintered structural part (including p
26、ores) : V m s =?(1) NOTEThe sintered density s, given in equation (1) in grammes per cubic centimetres, is calculated from m in grammes and V in cubic centimetres. 3.2 porosity, Ps content of pores relative to the total volume of the part in volume per cent NOTE 1Porosity of the sintered metal with
27、the sintered density is calculated as follows: %100)/1 ( ss =P(2) Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 5 Where is the density of the solid (theoretical density) of the same composition. NOTE 2The porosity Ps of a sin
28、tered metal consists of open, interconnected and closed pores. In the case of high sintered densities (corresponding to a porosity of approximately 6 %) isolated (closed) pores become predominant. 4 Symbols For the purposes of this standard, the following symbols apply: HMagnetic field strength; JMa
29、gnetic polarization; PsPorosity; sSintered density. 5 General requirements 5.1 Manufacturing process The magnetically soft structural parts defined by this standard are manufactured by a powder metallurgical process. Unless otherwise agreed, the manufacturing process is left to the discretion of the
30、 manufacturer. 5.2 State of delivery Unless otherwise agreed, the products are delivered in the finally annealed state. 5.3 Properties The maximum values of coercivity and the minimum values of sintered density shall be as given in Table 1. Table 2 includes typical values for additional properties.
31、Values of the other properties of components, such as mechanical strength and surface finish (including protection against corrosion), can be agreed upon between manufacturer and purchaser. 5.4 Chemical composition Data relating to the typical content of characteristic alloying elements of sintered
32、metals are given in Table 2. The values of chemical composition are not specified for acceptance. 5.5 Dimensions The permissible dimensional values of components and their tolerances form an integral part of the agreement between manufacturer and purchaser. 6 Measurements 6.1 Scope of test and sampl
33、ing For the purpose of delivery the scope of tests and the method of sampling to verify the properties shall be agreed when the order is placed. Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 6 6.2 Determination of magnetic pr
34、operties 6.2.1 General It shall be ensured that specimen is in the finally annealed state and not in the cold worked state. The values given in this standard are specified for ring-shaped samples. Magnetic properties measured on components may be different due to geometry or to test method. NOTEIf r
35、equired these properties may be subject to agreement between manufacturer and purchaser. 6.2.2 Method for the determination of coercivity Coercivity as specified in Table 1 shall be measured in accordance with prEN 10281. EN 10330 may be used for other shapes. 6.2.3 Method for the determination of m
36、agnetic polarization The typical values as given in Table 2 have been determined on ring-shaped samples. Other samples (for example strips or rods) may lead to different results. The test method is described in prEN 10281. 6.3 Determination of density For the determination of density, the components
37、 shall be weighed and their volume determined on the basis of geometric dimensions or by means of the immersion method in accordance with EN ISO 2738 or ISO 3369. 6.4 Determination of hardness Hardness of the components, as given in Table 2, is determined according to the Vickers method in accordanc
38、e with EN 24498-1 and ISO 4498-2. The Brinell method in accordance with EN ISO 6506-1 may also be used. 7 Classification The materials covered by this standard are classified according to the maximum value of their coercivity. 8 Designation The conventional designation of the different grades compri
39、ses the following in the order given : 1) the identification letter S (sintered metal) ; 2) a dash ; 3) letters characterising the alloying elements (Fe = plain iron, FeP = phosphorous iron alloys, FeSi = silicon iron alloys, FeNi = nickel iron alloys, FeCo = cobalt iron alloys) ; 4) a code number e
40、qual to the maximum value of coercivity, corresponding to Table 1. In this Table, reference is also made to corresponding material defined in ISO 5755. 9 Ordering information For materials to comply adequately with the requirements of this standard, the purchaser shall include the following informat
41、ion in his enquiry or order: Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 7 a) nature of the product and the designation of the material in accordance with clause 8 ; b) where applicable, its dimensions (see 5.5) ; c) quanti
42、ty required ; d) scope of tests and method of sampling (see 6.1) ; e) following additional requirements shall be specified at the time of enquiry and order. If nothing is specified the manufacturer shall assume that there are no particular requirements on these points : other properties (see 5.3) ;
43、other shapes of test specimen (see 6.2) ; other methods of test (see 6.2.3). Table 1 Minimum sintered densities and maximum coercivities Material symbolic designation Material designation according to ISO 5755 Density s g/cm3 min. Coercivity Hc A/m max. S-Fe-175P 1024 Z6,4175 S-Fe-170P 1025 Z6,8170
44、S-Fe-165-7,1165 S-Fe-150a -7,3150 S-FeP-150-6,8150 S-FeP-130-7,1130 S-FeP-110a -7,3110 S-FeSi-80-7,280 S-FeSi-50-7,450 S-FeNi-20-7,620 S-FeNi-15-7,915 S-FeNi-8-8,38 S-FeCo-100-7,7100 S-FeCo-200-7,7200 a With special precautions in the processing a lower coercivity is possible : 100 A/m for S-Fe-150
45、and 60 A/m for S-FeP-110. Licensed Copy: sheffieldun sheffieldun, na, Wed Oct 11 04:59:42 BST 2006, Uncontrolled Copy, (c) BSI ? EN 10331:2003 (E) 8 Table 2 Typical values for the properties of soft magnetic sintered materials in the finally annealed statea Magnetic polarization J(T) at a field stre
46、ngth H (A/m) of Material designation Characteristic alloying elements (except Fe) % by mass Sintered density ?s g/cm3 Porosity Ps % 5005 00015 000 80 000b Maximum permeability ?max. Vickers hardness HV5 Resistivity ? S-Fe-1756,6160,701,101,401,552 000500,15 S-Fe-1707,0110,901,251,451,652 600600,13 S
47、-Fe-1657,291,101,401,551,753 000700,12 S-Fe-150c 7,461,301,551,701,855 500700,12 S-FeP-150approx0,45 % P7,0101,051,301,501,653 400950,20 S-FeP-1300,45 % P7,281,201,451,601,754 0001050,19 S-FeP-110c 0,45 % P7,451,351,601,751,856 9001000,18 S-FeSi-80approx3,0 % Si7,341,351,551,701,858 0001700,45 S-FeS
48、i-503,0 % Si7,521,401,651,701,959 5001800,45 S-FeNi-20approx50 % Ni7,771,101,251,301,3020 000700,50 S-FeNi-1550 % Ni8,041,301,501,551,5530 000850,45 S-FeNi-8approx80 % Ni + Mo8,43 0,75d 0,800,800,8074 500950,60 S-FeCo-200approx50 % Co7,831,552,052,152,203 9002400,35 S-FeCo-10050 % Co7,831,502,002,10
49、2,152 0001900,10 a Some of these compositions are also available in resin-bonded components, which with reduced magnetic properties, but also with reduced losses, are used in high-frequency applications. b Magnetic polarization at a field of 80 000 A/m corresponds to the saturation magnetic polarization. c By special precautions in processing, lower values for the coercivity are poss