1、BS EN10028-3:2009ICS 77.140.30; 77.140.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFlat products madeof steels for pressurepurposesPart 3: Weldable fine grain steels,normalizedThis British Standardwas published under theauthority of the StandardsPolicy and
2、 StrategyCommittee on 31 July2009. BSI 2009ISBN 978 0 580 64186 2Amendments/corrigenda issued since publicationDate CommentsBS EN 10028-3:2009National forewordThis British Standard is the UK implementation of EN 10028-3:2009. Itsupersedes BS EN 10028-3:2003 which is withdrawn.The UK participation in
3、 its preparation was entrusted to TechnicalCommittee ISE/73/2, Steel plates and bars for pressure purposes.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users ar
4、e responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 10028-3:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-3June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-3:2003 English VersionFlat products made of steel
5、s for pressure purposes - Part 3:Weldable fine grain steels, normalizedProduits plats en aciers pour appareils pression - Partie3: Aciers soudables grains fins, normalissFlacherzeugnisse aus Druckbehltersthlen - Teil 3:Schweigeeignete Feinkornbausthle, normalgeglhtThis European Standard was approved
6、 by CEN on 14 May 2009.CEN members are bound to comply with the CEN/CENELEC 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
7、 may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the
8、CEN Management Centre has the same status as theofficial versions.CEN 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, Netherland
9、s, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any for
10、m and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-3:2009: EBS EN 10028-3:2009EN 10028-3:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Dimensions and tolerances on dimensions . 4 5 Calculation of mass . 4 6 Classific
11、ation and designation . 4 6.1 Classification 4 6.2 Designation 5 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information 5 7.2 Options . 5 7.3 Example for ordering . 5 8 Requirements . 6 8.1 Steelmaking process . 6 8.2 Delivery condition 6 8.3 Chemical composition 6 8.4 Mechanica
12、l properties . 9 8.5 Surface condition. 9 8.6 Internal soundness 9 8.7 Resistance to hydrogen induced cracking . 10 9 Inspection . 10 9.1 Types of inspection and inspection documents 10 9.2 Tests to be carried out 10 9.3 Retests 10 10 Sampling . 10 11 Test methods 10 12 Marking . 10 Annex A (normati
13、ve) Evaluation of resistance to hydrogen induced cracking 14 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 15 Bibliography 16 BS EN 10028-3:2009EN 10028-3:2009 (E) 3 Foreword This document (EN 10028-3:2009) has been prepa
14、red by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, 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 December 2009, and confl
15、icting national standards shall be withdrawn at the latest by December 2009. 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 docu
16、ment supersedes EN 10028-3:2003. This European Standard consists of the following parts, under the general title Flat products made of steels for pressure purposes: Part 1: General requirements Part 2: Non-alloy and alloy steels with specified elevated temperature properties Part 3: Weldable fine gr
17、ain steels, normalized Part 4: Nickel alloy steels with specified low temperature properties Part 5: Weldable fine grain steels, thermomechanically rolled Part 6: Weldable fine grain steels, quenched and tempered Part 7: Stainless steels NOTE The clauses marked by two points () contain information r
18、elating to agreements that may be made at the time of enquiry and order. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC. For relationship with EU Directive 9
19、7/23/EC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark
20、, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 10028-3:2009EN 10028-3:2009 (E) 4 1 Scope This European St
21、andard specifies requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Table 1. NOTE 1 Fine grain steels are understood as steels with a ferritic grain size of 6 or finer when tested in accordance with EN ISO 643. The requirements and definitions of
22、 EN 10028-1:2007 + A1:2009 also apply. NOTE 2 Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this European St
23、andard (Part 1 and this Part 3 of the series) and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs
24、of Directive 97/23/EC are satisfied, needs to be done. 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 document (includ
25、ing any amendments) applies. EN 10028-1:2007 + A1:2009, Flat products made of steels for pressure purposes Part 1: General requirements EN 10204:2004, Metallic products Types of inspection documents EN 10229:1998, Evaluation of resistance of steel products to hydrogen induced cracking (HIC) 3 Terms
26、and definitions For the purposes of this document, the terms and definitions given in EN 10028-1:2007 + A1:2009 apply. 4 Dimensions and tolerances on dimensions See EN 10028-1:2007 + A1:2009. 5 Calculation of mass See EN 10028-1:2007 + A1:2009. 6 Classification and designation 6.1 Classification 6.1
27、.1 The steel grades covered by this document are given in four qualities: a) room temperature quality (P . N), b) elevated temperature quality (P.NH), c) low temperature quality (P.NL1) and d) special low temperature quality (P.NL2). BS EN 10028-3:2009EN 10028-3:2009 (E) 5 6.1.2 The grades P275NH, P
28、275NL1, P355N, P355NH and P355NL1 are non-alloy quality steels, the grades P275NL2 and P355NL2 are non-alloy special steels and the grades P460NH, P460NL1 and P460NL2 are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. 7 Information to be supplied by the purchaser 7.1 Mandatory
29、information See EN 10028-1:2007 + A1:2009. 7.2 Options A number of options are specified in this document and listed below. Additionally the relevant options of EN 10028-1:2007 + A1:2009 apply. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and ord
30、er, the products shall be supplied in accordance with the basic specification (see also EN 10028-1:2007 + A1:2009). 1) tests in the simulated normalized condition (see 8.2.2); 2) delivery of products in the untreated condition (see 8.2.3); 3) maximum carbon equivalent value (see 8.3.3); 4) tensile p
31、roperties for increased product thicknesses (see Table 4, footnote c); 5) modified values for ReHand Rm for grades P460NH and P460NL1 (see Table 4, footnote d) 6) application of the Rp0,2values of Table 5 for the corresponding P.NL1 and PNL2 grade (see 8.4.2); 7) Rp0,2values at elevated temperatures
32、 for increased product thicknesses (see Table 5, footnote b); 8) specification of a minimum impact energy of 40 J (see NOTE to 8.4.1 and Table 6); 9) HIC test in accordance with EN 10229 (see 8.7); 10) mid thickness test pieces for the impact test (see Clause 10); 11) verification of impact energy f
33、or longitudinal test pieces (see clause 11); 12) use of test solution B for the HIC test with agreed acceptance criteria (see Annex A). 7.3 Example for ordering 10 plates with nominal dimensions, thickness = 50 mm, width = 2000 mm, length = 10 000 mm, made of a steel grade with the name P275NL2 and
34、the number 1.1104 as specified in EN 10028-3, to be delivered with inspection certificate 3.1 as specified in EN 10204: 10 plates 50 x 2000 x 10000 EN 10028-3 P275NL2 - Inspection certificate 3.1. or 10 plates 50 x 2000 x 10000 EN 10028-3 1.1104 Inspection certificate 3.1. BS EN 10028-3:2009EN 10028
35、-3:2009 (E) 6 8 Requirements 8.1 Steelmaking process See EN 10028-1:2007 + A1:2009. 8.2 Delivery condition 8.2.1 Unless otherwise agreed at the time of enquiry and order (see 8.2.3), the products covered by this document shall be supplied in the normalized condition. For steels with a minimum yield
36、strength 460 MPa, delayed cooling or additional tempering may be necessary for small product thicknesses and in special cases. If such a treatment is performed, this shall be noted in the inspection document. 8.2.2 Normalizing may, at the discretion of the manufacturer, be replaced with normalizing
37、rolling for the steel grades P275NH, P275NL1, P275NL2, P355N, P355NH, P355NL1 and P355NL2 (see 3.1 in EN 10028-1:2007 + A1:2009). In this case, additional tests on simulated normalized samples with an agreed frequency of testing may be agreed at the time of enquiry and order to verify that the speci
38、fied properties are complied with. 8.2.3 If so agreed at the time of enquiry and order, products covered by this document may also be delivered in the untreated condition. In these cases, testing shall be carried out in the simulated normalized condition (but see 8.2.1). NOTE Testing in a simulated
39、heat treated condition does not discharge the processor from the obligation of providing proof of the specified properties in the finished product. 8.2.4 Information on welding is given in EN 1011-1 and EN 1011-2. NOTE Excessive post weld heat treatment (PWHT) conditions can decrease the mechanical
40、properties. When in stress relieving the intended time temperature parameter P = Ts(20 + lg t) x 10-3, where Tsis the stress relieving temperature in K and t is the holding time in hours, exceeds the critical value Pcrit. of 17,3 for all steel grades except P460NH, P460NL1 and P460NL2 16,7 in the ca
41、se of steel grade P460NH and 16,3 in the case of steel grades P460NL1 and P460NL2, the purchaser should in his enquiry and order inform the manufacturer accordingly and, where appropriate, tests on simulated heat treated samples may be agreed to check whether after such a treatment the properties sp
42、ecified in this European Standard can still be regarded as valid. 8.3 Chemical composition 8.3.1 The requirements of Table 1 shall apply for the chemical composition according to the cast analysis. 8.3.2 The product analysis shall not deviate from the specified values for the cast analysis as specif
43、ied in Table 1 by more than the values given in Table 2. 8.3.3 A maximum value for the carbon equivalent in accordance with Table 3 may be agreed upon at the time of enquiry and order. BS EN 10028-3:2009EN 10028-3:2009 (E) 7 Table 1 Chemical composition (cast analysis) aSteel grade % by mass Steel n
44、ame Steel numberC max. Si max. Mn P max. S max. Altotal min. N max. Cr max. Cu max. Mo max. Nb max. Ni max. Ti max. V max. Nb + Ti + V max. P275NH 1.0487 0,16 0,40 0,80 bto 1,50 0,025 0,010 0,020 c,d0,012 0,30e0,30 e0,08 e0,05 0,50 0,03 0,05 0,05 P275NL1 1.0488 0,008 P275NL2 1.1104 0,020 0,005 P355N
45、 1.0562 0,18 0,50 1,10 to 1,70 0,025 0,010 0,020 c,d0,012 0,30e0,30 e0,08 e0,05 0,50 0,03 0,10 0,12 P355NH 1.0565 P355NL1 1.0566 0,008 P355NL2 1.1106 0,020 0,005 P460NH 1.8935 0,20 0,60 1,10 to 1,70 0,025 0,010 0,020c,d0,025 0,30 0,70 f0,10 0,05 0,80 0,03 0,20 0,22 P460NL1 1.8915 0,008 P460NL2 1.891
46、8 0,020 0,005 a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate measures shall be taken to prevent the addition from scrap or other materials used in steelmaking of these elements wh
47、ich may adversely affect the mechanical properties and usability. bFor product thicknesses 1,00 to 1,70 0,10 P 0,025 +0,005 S 0,010 +0,003 Al 0,020 0,005 N 0,025 +0,002 Cr 0,30 +0,05 Mo 0,10 +0,03 Cu 0,30 +0,05 0,30 to 0,70 +0,10 Nb 0,05 +0,01 Ni 0,80 +0,05 Ti 0,03 +0,01 V 0,20 +0,01 aIf several pro
48、duct analyses are carried out on one cast, and the contents of an individual element determined lie outside the permissible range of the chemical composition specified for the cast analysis, then it is only allowed to exceed the permissible maximum value or fall short of the permissible minimum valu
49、e, but not both for one cast. BS EN 10028-3:2009EN 10028-3:2009 (E) 9 Table 3 Maximum carbon equivalent value (CEV) based on cast analysis (if agreed at the time of enquiry and order)aSteel grade CEV bmax. for product thicknesses t in mm Steel name Steel number 60 60 t 100 100 t 250 P275NH 1.0487 0,40 0,40 0,42 P275NL1 1.0488 P275NL2 1.1104 P355N 1.0562 0,43 0,45 0,45 P355NH 1.0565 P355NL1 1.0566 P355NL2 1.1106 P460NH 1.8935 0,53 P460NL1 1.8915 P460NL2 1.8918 NOT
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