《BS-EN-ISO-683-17-1999.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-683-17-1999.pdf（30页珍藏版）》请在三一文库上搜索。
1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 683-17:1999 The
2、 European Standard EN ISO 683-17:1999 has the status of a British Standard ICS 77.140.10; 77.140.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Heat-treated steels, alloy steels and free-cutting steels Part 17: Ball and roller bearing steels Licensed Copy: sheffieldun shef
3、fieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 December 1999 BSI 12-1999 ISBN 0 5
4、80 35421 0 BS EN ISO 683-17:1999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN ISO 683-17:1999. It is identical with ISO 683-17:1999. The UK participation in its preparation was entrusted to Technical Committee
5、ISE/31, Wrought steels, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European deve
6、lopments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international public
7、ations with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Stan
8、dards 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 confer immunity from legal obligations. Summary of pa
9、ges This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii and iii. a blank page, pages 1 to 20, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document wa
10、s last issued. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov
11、19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI A Reference number ISO 683-17:1999(E) INTERNATIONAL STANDARD ISO 683-17 Second edition 1999-10-15 Heat-treated steels, alloy steels and free-cutting steels Part 17: Ball and roller bearing steels Aciers pour traitement thermique, aciers allis et
12、 aciers pour dcolletage Partie 17: Aciers pour roulements EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI )E(9991:71-386 OSI ii Contents Page 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Ordering and desig
13、nation.2 5 Requirements.3 6 Inspection, testing and conformance of products.5 7 Marking.6 Annex A (normative) Supplementary or special requirements 15 Annex B (informative) Content of microscopic non-metallic inclusions.17 Annex C (informative) Designations of comparable steels.19 Bibliography20 EN
14、ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI OSI)E(9991:71-386 OSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
15、of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-government
16、al, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft I
17、nternational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 683-17 was prepared by Technical Committee ISO/TC 17,
18、 Steel, Subcommittee SC 4, Heat treatable and alloy steels. This second edition cancels and replaces the first edition (ISO 683-17:1976), which has been technically revised. ISO 683 consists of the following parts, under the general title Heat treated steels, alloy steels and free-cutting steels: Pa
19、rt 1: Direct-hardening unalloyed and low-alloyed wrought steels in form of different black products Part 9: Wrought free-cutting steels Part 10: Wrought nitriding steels Part 11: Wrought case-hardening steels Part 14: Hot-rolled steels for quenched and tempered springs Part 15: Valve steels for inte
20、rnal combustion engines Part 17: Ball and roller bearing steels Part 18: Bright products of unalloyed and low-alloy steels Annex A forms a normative part of this part of ISO 683. Annexes B and C are for information only. EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01
21、:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI LANOITANRETNI DRADNATS OSI)E(9991:71-386 OSI 1 Heat-treated steels, alloy steels and free-cutting steels Part 17: Ball and roll
22、er bearing steels 1 Scope 1.1 This part of ISO 683 applies to the products and heat-treatment conditions given in Table 1 and the surface conditions given in Table 2. 1.2 This part of ISO 683 gives the technical delivery requirements for five groups of wrought ball and roller bearing steels as liste
23、d in Table 3, namely: a) through-hardening bearing steels (steels with about 1 % C and 1 % to 2 % Cr); b) case-hardening bearing steels; c) induction-hardening bearing steels (unalloyed and alloyed); d) stainless bearing steels; e) high temperature bearing steels. 1.3 In special cases variations in
24、these technical delivery requirements or additions to them may form the subject of an agreement at the time of inquiry and order (see annex A). 1.4 In addition to this part of ISO 683, the general technical delivery requirements of ISO 404 are applicable. 2 Normative references The following normati
25、ve documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 683. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 683 are encouraged t
26、o investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 377:1997,
27、 Steel and steel products Location and preparation of samples and test pieces for mechanical testing. ISO 404:1992, Steel and steel products General technical delivery requirements. ISO 642:1999, Steels Hardenability test by end quenching (Jominy test). ISO 643:1983, Steels Micrographic determinatio
28、n of the ferritic or austenitic grain size. ISO 1035-1:1980, Hot-rolled steel bars Part 1: Dimensions of round bars. ISO 1035-4:1982, Hot-rolled steel bars Part 4: Tolerances. ISO 3763:1976, Wrought steels Macroscopic methods for assessing the content of non-metallic inclusions. ISO 3887:1976, Steel
29、, non-alloy and low-alloy Determination of depth of decarburization. EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI )E(9991:71-386 OSI OSI 2 ISO 4948-1:1982, Steels Classification Part 1: Classification of steels into una
30、lloyed and alloy steels based on chemical composition. ISO 4967:1998, Steel Determination of content of nonmetallic inclusions Micrographic method using standard diagrams. ISO 4969:1980, Steel Macroscopic examination by etching with strong mineral acids. ISO 5949:1983, Tool steels and bearing steels
31、 Micrographic method for assessing the distribution of carbides using reference photomicrographs. ISO 6506:19811), Metallic materials Hardness test Brinell test. ISO 6929:1987, Steel products Definitions and classification. ISO 9443:1991, Heat-treatable and alloy steels Surface quality classes for h
32、ot-rolled round bars and wire rods Technical delivery conditions. ISO/TR 9769:1991, Steel and iron Review of available methods of analysis. ISO 10474:1991, Steel and steel products Inspection documents. ISO 14284:1996, Steel and iron Sampling and preparation of samples for the determination of chemi
33、cal composition. ENV 10247:1996, Metallographic test methods Examination of steels using standard diagrams to assess the content of non-metallic inclusions. 3 Terms and definitions For the purposes of this part of ISO 683, the terms and definitions for the product forms given in ISO 6929 apply. The
34、terms “unalloyed steel“ and “alloyed steel“ are as defined in ISO 4948-1. 4 Ordering and designation The designation of the product on an order shall cover the following. a) The designation of the product form (e. g. bar) followed by 1) either the designation of the dimensional standard and the dime
35、nsions and tolerances selected from it (see 5.6) or 2) the designation of any other document covering the dimensions and tolerances required for the product. b) If a surface condition other than “hot worked“ or a special surface quality is required 1) the surface condition (see Table 2), and 2) the
36、surface quality (see 5.5). c) A description of the steel comprising 1) a reference to this part of ISO 683; 2) the designation of the steel type (see Table 3); 3) the symbol for the heat-treatment condition on delivery (see Table 1); 4) the standard designation for the required type of inspection do
37、cument (see ISO 10474); 5) the symbol and, where necessary, the details of this supplementary requirement (see annex A), if any supplementary requirement shall be complied with. 1) This International Standard has been replaced by ISO 6506-1, ISO 6506-2 and ISO 6506-3. EN ISO 683-17:1999 Licensed Cop
38、y: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI OSI)E(9991:71-386 OSI 3 EXAMPLE The following are to be ordered. Hot-rolled round bars a) in accordance with ISO 1035-1; b) with a nominal diameter of 50,0 mm; c) with a nominal length of 8 000 mm; d) with
39、 a tolerance on diameter of 6 0,40 mm (class S of ISO 1035-4); e) with a tolerance on length of 0 100+ mm (class L2 of ISO 1035-4); f) all other tolerances as given in ISO 1035-4, for normal cases. Surface a) as hot worked Steel a) in accordance with this part of ISO 683, type 100Cr6 (see Table 3);
40、b) heat-treatment condition: annealed to achieve spheroidized carbides (symbol 1AC, see Table 1); c) with an inspection certificate 3.1.B (see ISO 10474). Designation Rounds ISO 1035-1-50,0 S 3 8 000 L2 Steel ISO 683-17-100Cr61AC-3.1.B 5 Requirements 5.1 Manufacturing process 5.1.1 General The manuf
41、acturing process of the steel and of the products is, with the restrictions given by the requirements in 5.1.2 and 5.1.3, left to the discretion of the manufacturer. When he so requests, the purchaser shall be informed on the steel-making process used. Remelting of the steel may be agreed upon at th
42、e time of enquiry and order. 5.1.2 Heat-treatment and surface condition at delivery The heat-treatment and surface condition at delivery shall be as agreed when ordering. Table 1 in combination with Table 6 covers the various product forms and steel groups usual heat-treatment conditions, and Table
43、2 the usual surface conditions. 5.1.3 Cast separation The steels shall be delivered separated by casts. EN ISO 683-17:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 16:01:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI )E(9991:71-386 OSI OSI 4 5.2 Chemical composition, hardness and harden
44、ability 5.2.1 Table 1 gives a survey on combinations of usual heat-treatment conditions at delivery, product forms and requirements according to Tables 3 to 6 (chemical composition, hardenability, maximum hardness, hardness range). 5.2.2 Where the steel is not ordered to hardenability requirements i
45、.e. where the steel type designations of Table 3 and not the designations given in Table 5 are applied the requirements for chemical composition and hardness cited in Table 1, column 10, apply as appropriate for the particular heat-treatment condition. In this case the values of hardenability given
46、in Table 5 are for guidance purposes only. 5.2.3 Where the steel is, by using the designations given in Table 5, ordered to hardenability requirements, the values of hardenability given in Table 5 apply in addition to the requirements cited in Table 1, column 10 (see footnote b to Table 3). 5.3 Micr
47、ostructure 5.3.1 Austenitic grain size of case-hardening and induction-hardening bearing steels Case-hardening steels and induction-hardening steels shall be fine grained. This requirement shall be regarded as complied with if a) in the case of case-hardening steels after holding the steel for 4 h a
48、t (925 6 10) C, at least 70 % of the microstructure revealed according to one of the procedures given in ISO 643 consists of grains of size 5 or finer; b) in the case of induction hardening steels after holding for 1,5 h at (850 6 10) C the microstructure revealed according to one of the procedures
49、given in ISO 643 consists of grains of size 5 or finer. For verification of the grain size see annex A.1. 5.3.2 Spheroidization and distribution of carbides 5.3.2.1 For deliveries in treatment conditions 1AC and 1AC1C, the carbides of the through-hardening steels shall be spheroidized and the carbides of the stainless and high temperature bearing steels shall be predominantly spheroidized. Case-hardening steels may show remnants of incompletely spheroidized carbides. If necessary, the