《EN-10083-3-2006.pdf》由会员分享，可在线阅读，更多相关《EN-10083-3-2006.pdf（55页珍藏版）》请在三一文库上搜索。
1、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10083-3 August 2006 ICS 77.140.10Supersedes EN 10083-3:1995 English Version Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels Aciers pour trempe et revenu - Partie 3: Conditions techniques de livraison des
2、 aciers allis Vergtungsstahle - Teil 3: Technische Lieferbedingungen fr legierte Sthle This European Standard was approved by CEN on 30 June 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
3、a national standard without any alteration. Up-to-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
4、 in any other language made by translation under 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, Cyprus, Czech Republic, Denmark, Estonia,
5、 Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISC
6、HES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10083-3:2006: E EN 10083-3:2006 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Ter
7、ms and definitions .5 4 Classification and designation.5 4.1 Classification5 4.2 Designation 5 5 Information to be supplied by the purchaser .5 5.1 Mandatory information5 5.2 Options .6 6 Manufacturing process .6 6.1 General6 6.2 Deoxidation 7 6.3 Heat treatment and surface condition at delivery7 6.
8、4 Cast separation7 7 Requirements.7 7.1 Chemical composition, hardenability and mechanical properties.7 7.2 Machinability8 7.3 Shearability of semi-finished products and bars .8 7.4 Structure.8 7.5 Internal soundness8 7.6 Surface quality.8 7.7 Dimensions, tolerances on dimensions and shape.9 8 Inspe
9、ction.9 8.1 Testing procedures and types of documents.9 8.2 Frequency of testing .9 8.3 Tests to be carried out for specific inspection.10 9 Preparation of samples and test pieces10 9.1 Selection and preparation of samples for chemical analysis.10 9.2 Location and orientation of samples and test pie
10、ces for mechanical tests10 9.3 Location and preparation of samples for hardness and hardenability tests 10 9.4 Identification of samples and test pieces .10 10 Test methods10 10.1 Chemical analysis10 10.2 Mechanical tests10 10.3 Hardness and hardenability tests11 10.4 Retests11 11 Marking, labelling
11、, packaging.11 Annex A (normative) Options 50 Annex B (informative) Comparison of steel grades specified in this European Standard and ISO 683-1:1987 and other steel grades previously standardized nationally.52 Annex C (informative) Reference values for the maximum diameter at a certain core hardnes
12、s of steels with boron .53 Bibliography54 EN 10083-3:2006 (E) 3 Foreword This document (EN 10083-3:2006) has been prepared by Technical Committee ECISS/TC 23 “Steels for heat treatment, alloy steels and free-cutting steels - Qualities and dimensions”, the secretariat of which is held by DIN. This Eu
13、ropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. This document supersedes EN 10083-3:1995. Together wit
14、h Part 1 and Part 2 of this standard this part 3 is a revision of the following European Standards: EN 10083-1:1991 +A1:1996, Quenched and tempered steels Part 1: Technical delivery conditions for special steels EN 10083-2:1991 +A1:1996, Quenched and tempered steels Part 2: Technical delivery condit
15、ions for unalloyed quality steels EN 10083-3:1995, Quenched and tempered steels Part 3: Technical delivery conditions for boron steels and of EURONORM 86-70, Flame and induction hardening steels Quality specifications According to the CEN/CENELEC Internal Regulations, the national standards organiza
16、tions of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovak
17、ia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 10083-3:2006 (E) 4 1 Scope This part of EN 10083, in addition to Part 1, specifies the technical delivery requirements for: semi-finished products, hot formed, e.g. blooms, billets, slabs (see NOTES 2 and 3 in EN 10083-1:2006, Clause 1)
18、, bars (see NOTE 2 in EN 10083-1:2006, Clause 1), rod, wide flats, hot-rolled strip and sheet/plate, forgings (see NOTE 2 in EN 10083-1:2006, Clause 1), manufactured from the direct hardening alloy steels for quenching and tempering and the alloy flame and induction hardening steels and supplied in
19、one of the heat treatment conditions given for the different types of products in Table 1, lines 2 to 6, and in one of the surface conditions given in Table 2. The steels are generally intended for the fabrication of quenched and tempered, flame or induction hardened machine parts. The requirements
20、for mechanical properties given in this document are restricted to the sizes given in Table 8. NOTE This document does not apply for bright steel products. For bright steel products EN 10277-1 and EN 10277-5 apply. In special cases, variations in these technical delivery requirements or additions to
21、 them may be agreed at the time of enquiry and order (see Annex A). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc
22、ument (including any amendments) applies. EN 10002-1, Metallic materials Tensile testing Part 1: Method of test at ambient temperature EN 10020, Definition and classification of grades of steel EN 10027-1, Designation systems for steels Part 1: Steel names EN 10027-2, Designation systems for steels
23、Part 2: Numerical system EN 10045-1, Metallic materials Charpy impact test Part 1: Test method EN 10083-1:2006, Steels for quenching and tempering Part 1: General technical delivery conditions EN 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection meth
24、od) EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections Part 2: Plate and wide flats EN 10204, Metallic products Types of inspection documents EN 10083-3:2006 (E) 5 EN 10221, Surface quality classes for hot-rolled bars and rods Technical delive
25、ry conditions CR 10261, ECISS Information Circular 11 Iron and steel Review of available methods of chemical analysis EN 10308, Non destructive testing Ultrasonic testing of steel bars EN ISO 377, Steel and steel products Location and preparation of samples and test pieces for mechanical testing (IS
26、O 377:1997) EN ISO 642, Steel Hardenability test by end quenching (Jominy test) (ISO 642:1999) EN ISO 643, Steels Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 3887, Steels Determination of depth of decarburization (ISO 3887:2003) EN ISO 6506-1, Metallic materials Brine
27、ll hardness test Part 1: Test method (ISO 6506-1:2005) EN ISO 6508-1:2005, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) (ISO 6508-1:2005) EN ISO 14284, Steel and iron Sampling and preparation of samples for the determination of chemical compo
28、sition (ISO 14284:1996) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10083-1:2006 apply. 4 Classification and designation 4.1 Classification All steel grades are classified according to EN 10020 as alloy special steels. 4.2 Designation 4.2.1 Steel
29、names For the steel grades covered by this document, the steel names as given in the relevant tables are allocated in accordance with EN 10027-1. 4.2.2 Steel numbers For the steel grades covered by this document, the steel numbers as given in the relevant tables are allocated in accordance with EN 1
30、0027-2. 5 Information to be supplied by the purchaser 5.1 Mandatory information See EN 10083-1:2006, 5.1. EN 10083-3:2006 (E) 6 5.2 Options A number of options are specified in this document and listed below. If the purchaser does not indicate his wish to implement any of these options, the supplier
31、 shall act in accordance with the basic specification. a) any particular heat treatment condition (see 6.3.2); b) any particular surface condition (see 6.3.3); c) any verification of the product analysis (see 7.1.2.2 and A.5); d) any requirement to the hardenability (+H, +HH, +HL) (see 7.1.3) and if
32、 agreed the information about calculation of the hardenability (see 10.3.2); e) any verification of mechanical properties of reference test pieces in the quenched and tempered (+QT) condition (see A.1); f) any verification of fine grain size (see 7.4 and A.2); g) any requirements for the verificatio
33、n of non-metallic inclusion content (see 7.4 and A.3); h) any requirement for internal soundness (see 7.5 and A.4); i) any requirement relating to surface quality (see 7.6.3); j) any requirement regarding the permissible depth of decarburization (see 7.6.4); k) suitability of bars and rod for bright
34、 drawing (see 7.6.5); l) any requirement relating to removal of surface defects (see 7.6.6); m) inspection of surface condition and dimensions shall be carried out by the purchaser at the manufacturers works (see 8.1.4); n) any requirement concerning special marking of the products (see 11 and A.6).
35、 EXAMPLE 20 round bars with the nominal diameter 20 mm and the nominal length of 8000 mm according to EN 10060 made of steel grade 25CrMo4 (1.7218) according to EN 10083-3 in the heat treatment condition +A, inspection certificate 3.1 as specified in EN 10204. 20 round bars EN 10060 - 20x8000 EN 100
36、83-3 25CrMo4+A EN 10204 - 3.1 or 20 round bars EN 10060 - 20x8000 EN 10083-3 1.7218+A EN 10204 - 3.1 6 Manufacturing process 6.1 General The manufacturing process of steel and of the products is left to the discretion of the manufacturer with the restrictions given by the requirements in 6.2 to 6.4.
37、 EN 10083-3:2006 (E) 7 6.2 Deoxidation All steels shall be killed. 6.3 Heat treatment and surface condition at delivery 6.3.1 Untreated condition Unless otherwise agreed at the time of enquiry and order, the products shall be delivered in the untreated, i.e. hot worked, condition. NOTE Depending on
38、the product shape and dimensions, not all steel grades can be delivered in the hot worked untreated condition (e.g. steel grade 30CrNiMo8). 6.3.2 Particular heat treatment condition If so agreed at the time of enquiry and order, the products shall be delivered in one of the heat-treatment conditions
39、 given in Table 1, lines 3 to 6. 6.3.3 Particular surface condition If so agreed at the time of enquiry and order, the products shall be delivered with one of the particular surface conditions given in Table 2, lines 3 to 7. 6.4 Cast separation The products shall be delivered separated by cast. 7 Re
40、quirements 7.1 Chemical composition, hardenability and mechanical properties 7.1.1 General Table 1 shows the combinations of usual heat-treatment conditions at delivery, product forms and requirements as specified in Tables 3 to 8. Except where the steels are ordered in the quenched and tempered con
41、dition, the steels may be supplied with or without hardenability requirements (see Table 1, columns 8 and 9). 7.1.2 Chemical composition 7.1.2.1 The chemical composition determined by cast analysis shall comply with the values in Table 3. 7.1.2.2 Permissible deviations between the limiting values fo
42、r cast analysis and the values for product analysis are given in Table 4. The product analysis shall be carried out when specified at the time of the order (see A.5). 7.1.3 Hardenability Where the steel is ordered by using the symbols for normal (+H) or restricted (+HL, +HH) hardenability requiremen
43、ts, the hardenability values given in Table 5 or Table 6 shall apply. 7.1.4 Mechanical properties EN 10083-3:2006 (E) 8 Where the steel is ordered without hardenability requirements, the requirements for mechanical properties specified in Table 8 for the quenched and tempered condition apply. In thi
44、s case the hardenability values given in Table 5 are for guidance purposes only. The mechanical property values given in Table 8 apply to test pieces in the quenched and tempered condition which have been taken and prepared in accordance with EN 10083-1:2006, Figure 1 or Figures 2 and 3 (see also fo
45、otnote a in Table 1). 7.1.5 Surface hardness For the hardness of surface hardened zones of steels intended for flame and induction hardening the specifications in Table 9 apply. 7.2 Machinability All steels delivered in the soft annealed (+A) condition are machinable. Where improved machinability is
46、 required, the grades with a specified sulphur range should be ordered and/or with a specific treatment to improve machinability (e.g. Ca treatment), see also Table 3, footnote c. 7.3 Shearability of semi-finished products and bars 7.3.1 Under suitable conditions (avoiding local stress peaks, pre-he
47、ating, application of blades with a profile adapted to that of the product, etc.) all steels are shearable in the soft-annealed (+A) condition (see, however, footnote f to Table 7). 7.3.2 Steel grades without boron up to steel grade 42CrMoS4 and the boron-alloy steel grades 33MnCrB5- 2 and 39MnCrB6-
48、2 (see Table 7) and the corresponding grades with requirements on hardenability (see Tables 5 and 6) are shearable under suitable conditions, if they are supplied in the “treated to improve shearability (+S)“ condition with the hardness requirements as specified in Table 7. 7.3.3 Under suitable cond
49、itions steel grades 20MnB5, 30MnB5, 38MnB5 and 27MnCrB5-2 and the corresponding grades with requirements on hardenability (see Table 5) are shearable in the untreated condition. 7.4 Structure 7.4.1 All steels shall have a fine grain structure with an austenite grain size of 5 or finer, when tested in accordance with EN ISO 643. For verification see A.2. 7.4.2 The steels shall have a degree of cleanness corresponding to the special steel quality (see A.3 and EN 10083-1:2006, Annex E). 7.5 Internal soundness Wh