1、BRITISH STANDARDBS EN 10302:2008Creep resisting steels, nickel and cobalt alloysICS 77.120.01; 77.140.01; 77.150.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g4
2、3g55g3g47g36g58BS EN 10302:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 55990 7National forewordThis British Standard is the UK implementation of EN 10302:2008. It supersedes BS EN 10302:2002 which
3、is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/30, Stainless steels.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contrac
4、t. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10302March 2008ICS 77.120.01; 77.140.01; 77.150.01 Supers
5、edes EN 10302:2002 English VersionCreep resisting steels, nickel and cobalt alloysAciers et alliage base de nickel et de cobalt rsistant aufluageWarmfeste Sthle, Nickel- und CobaltlegierungenThis European Standard was approved by CEN on 10 February 2008.CEN members are bound to comply with the CEN/C
6、ENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to an
7、y CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN
8、 members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Swede
9、n, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref.
10、No. EN 10302:2008: EEN 10302:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Classification and designation.5 4.1 Classification5 4.2 Designation 5 5 Information to be supplied by the purchaser .6 5.1 Mandatory information .6 5.2 Options 6 6 Manufac
11、turing process .7 6.1 General 7 6.2 Delivery condition .7 7 Requirements.7 7.1 Chemical composition 7 7.2 Mechanical properties.7 7.2.1 Mechanical properties at room temperature.7 7.2.2 Mechanical properties at elevated temperatures .7 7.3 Creep properties 7 7.4 Surface condition.7 7.5 Internal soun
12、dness8 7.6 Dimensions and tolerances on dimensions 8 7.7 Calculation of mass and tolerances on mass.8 8 Inspection and testing.8 8.1 General8 8.2 Types and contents of inspection documents 8 8.3 Specific inspection and testing9 8.3.1 Extent of testing.9 8.3.2 Selection and preparation of samples and
13、 test pieces9 8.4 Test methods9 8.5 Retests 10 9 Marking .10 Annex A (informative) Applicable dimensional standards25 Annex B (informative) Technical information on creep resisting steels, nickel and cobalt alloys.26 Annex C (informative) Preliminary reference data for creep strength to 1 % plastic
14、strain and creep rupture strength 29 Annex D (informative) Guideline values for the physical properties of creep resisting steels, nickel and cobalt alloys 42 Bibliography 46 BS EN 10302:2008EN 10302:2008 (E) 3 Foreword This document (EN 10302:2008) has been prepared by Technical Committee ECISS/TC
15、23 “Stainless steels”, 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 September 2008, and conflicting national standards shall be withdrawn at the latest
16、by September 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10302:2002. According to the CEN/CENELE
17、C Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
18、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. NOTE The clauses marked with a point () contain information relating to agreements which are to be made at the time of ordering. The clauses marked with two points () con
19、tain information relating to agreements which may be made at the time of ordering. BS EN 10302:2008EN 10302:2008 (E) 4 1 Scope 1.1 This European Standard covers the grades of wrought steels and alloys listed in Table 1 and Table 2, which are usually employed for components and equipment, for which t
20、he main requirement is their creep resistance under mechanical long-time stressing at temperatures above 500 C. NOTE Heat resisting grades given in EN 10095 9 may also be used for similar applications if so agreed. 1.2 This European Standard specifies the technical delivery conditions for semi-finis
21、hed products, for hot or cold rolled sheet/plate and strip, hot or cold formed (cold drawn) bars, rods, wire and sections. 1.3 The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this European Standard, unless otherwise specified in this Europea
22、n Standard. 1.4 This European Standard does not apply to components manufactured by further processing the product forms listed in 1.2 with quality characteristics altered as a result of such further processing. 1.5 This European Standard shall not be used for aerospace and pressure purposes. 1.6 Fo
23、r steels and alloys with similar chemical composition, but intended for different applications, see the Bibliography. 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 re
24、ferences, the latest edition of the referenced document (including any amendments) applies. EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test (at ambient temperature) EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of testing at elevated temperature EN 10020
25、:2000, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steels products EN 10027-1, Designation systems for steels - Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10052:1993, Vocabulary of heat tr
26、eatment terms for ferrous products EN 10079:2007, Definition of steel products EN 10163-2, Delivery requirements for surface condition of hot rolled steel plates, wide flats and sections - Part 2: Plate and wide flats EN 10168:2004, Steel products Inspection documents List of information and descrip
27、tion EN 10204, Metallic products - Types of inspection documents EN 10221, Surface quality classes for hot-rolled bars and rods - Technical delivery conditions prCEN/TR 10261, Iron and steel - Review of available methods of chemical analysis EN ISO 377:1997, Steel and steel products - Location and p
28、reparation of samples and test pieces for mechanical testing (ISO 377:1997) BS EN 10302:2008EN 10302:2008 (E) 5 EN ISO 14284:2002, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) 3 Terms and definitions For the purposes of this Euro
29、pean Standard, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10079:2007, EN ISO 377:1997 and EN ISO 14284:2002 and the following apply. 3.1 creep resisting materials steels, nickel- or cobalt-alloys with a minimum of 8 % chromium, which are characterised by good
30、mechanical behaviour at temperatures above 500 C under long-range service conditions; i.e. primarily by creep strength to 1 % plastic strain or creep rupture strength during long-time stressing NOTE For supplementary information on creep resisting steels and alloys see Annex B. 4 Classification and
31、designation 4.1 Classification Materials covered in this European Standard are classified according to their structure into: martensitic steels; austenitic steels; nickel alloys; and cobalt alloys. 4.2 Designation The names and numbers of the steels (see Table 1) were formed in accordance with EN 10
32、027-1 and EN 10027-2 respectively. NOTE Explanation on the designation of nickel and cobalt alloys (see Table 2). name: The preceding chemical symbols indicate the main alloy elements and the figure immediately following indicates the average content of these alloys which is subsequently followed by
33、 the symbol for the other important alloying elements added. material number: The structure is set out according to EN 10027-2 with the number 2 for the material group number. This material group comprises chemically resistant and high temperature or heat resistant nickel and cobalt alloys. BS EN 10
34、302:2008EN 10302:2008 (E) 6 5 Information to be supplied by the purchaser 5.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) quantity to be delivered; b) designation of the product form (e.g. bar or rod, strip or plate); c) whe
35、re an appropriate dimensional standard is available (see Annex A) the number of the standard and the indications required by this, also the nominal dimensions and tolerances; d) type of material (steel, cobalt or nickel alloy); e) number of this European Standard (EN 10302:2008); f) name or number o
36、f the steel grade, nickel or cobalt alloy (see 4.2); g) if for the relevant material in the table more than one treatment condition for the mechanical properties is covered, the symbol for the desired heat treatment condition or work hardened condition; h) desired process route (see symbols in Table
37、 5 and Table 6). 5.2 Options A number of options are specified in this European Standard and listed below. If the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification of this European Standard (see 5.1). a) any r
38、equirement concerning a special melting or forming process (see 6.1); b) any requirement relating to surface condition (see 7.4); c) any requirement concerning tolerances on mass not specified in the dimensional standard (see 7.7.2); d) any requirement to determine the product analysis (see Table 11
39、, footnote b); e) any requirement concerning the method of product analysis (see 8.4.1); f) any requirement concerning elevated temperature tensile testing (see 8.4.3); g) any requirement concerning special marking of the products (see 9.2, 9.3 and Table 12); h) any requirement concerning the issue
40、of an inspection document (see 8.2). EXAMPLE 10 t rounds of a steel grade with the name X6NiCrTiMoVB25-15-2 and the number 1.4980 as specified in EN 10302 of 50 mm diameter, dimensional tolerances as specified in EN 10060, in process route 1D (see Table 6). 10 t rounds EN 1006050 steel EN 10302 - X6
41、NiCrTiMoVB25-15-2+1D or 10 t rounds EN 1006050 steel EN 10302-1.4980+1D BS EN 10302:2008EN 10302:2008 (E) 7 6 Manufacturing process 6.1 General Unless a special melting or forming process is agreed when ordering, the production process for steels and alloys conforming to this European Standard shall
42、 be at the discretion of the manufacturer. 6.2 Delivery condition The products shall be supplied in the delivery condition agreed in the order by reference to the process route given in Table 5 and Table 6 and to the treatment conditions given in Table B.1 and Table B.2. 7 Requirements 7.1 Chemical
43、composition 7.1.1 The chemical composition requirements given in Table 1 and Table 2 apply in respect to the cast analysis. 7.1.2 The product analysis may deviate from the limiting values for the cast analysis given in Table 1 and Table 2 by the values listed in Table 3 and Table 4. 7.2 Mechanical p
44、roperties 7.2.1 Mechanical properties at room temperature The mechanical properties at room temperature as specified in Table 7 and Table 8 apply for each specified heat treatment condition. This does not apply to the process route 1U (hot rolled, not heat treated, not descaled) and to semi-finished
45、 products. If by agreement at the time of ordering the products are to be supplied in a non-heat-treated condition, the mechanical properties specified in Table 7 and Table 8 shall be obtainable from reference test pieces which have received the appropriate heat treatment (simulated heat treatment).
46、 7.2.2 Mechanical properties at elevated temperatures The mechanical properties at elevated temperature as specified in Table 9 and Table 10 apply for each specified heat treatment condition. This does not apply to the process route 1U (hot rolled, not heat treated, not descaled) and to semi-finishe
47、d products. If by agreement at the time of ordering the products are to be supplied in a non-heat-treated condition, the mechanical properties specified in Table 9 and Table 10 shall be obtainable from reference test pieces which have received the appropriate heat treatment (simulated heat treatment
48、). 7.3 Creep properties The creep strength to 1 % plastic strain or creep rupture strength values as specified in Annex C apply for each specified heat treatment condition. This does not apply to the process route 1U (hot rolled, not heat treated, not descaled) and to semi-finished products. 7.4 Sur
49、face condition Slight surface imperfections, inherent in the production process, are permitted. If more exact requirements for the surface quality are necessary, this shall be agreed at the time of enquiry and order. BS EN 10302:2008EN 10302:2008 (E) 8 When products are delivered in coil form, the degree and extent of such imperfections may be expected to be greater, due to the impractibility of removing short lengths of coil. For hot-rolled quarto-plates, the specification in EN 10163-2, class A3, applies unless otherwise
