1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22684-8 SANS 50028-2:2009Edition 1EN 10028-2:2009Edition 3SOUTH AFRICAN NATIONAL STANDARD Flat products made of steels for pressure purpos
4、es Part 2: Non-alloy and alloy steels with specified elevated temperature properties This national standard is the identical implementation of EN 10028-2:2009 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan Road Groenk
5、loof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 50028-2:2009 Edition 1 EN 10028-2:2009 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1077, Engineering Mat
6、erials Ferrous metals, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in December 2009. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-2June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-
7、2:2003 English VersionFlat products made of steels for pressure purposes - Part 2:Non-alloy and alloy steels with specified elevated temperaturepropertiesProduits plats en aciers pour appareils pression - Partie2: Aciers non allis et allis avec caractristiquesspecifies temprature leveFlacherzeugniss
8、e aus Druckbehltersthlen - Teil 2:Unlegierte und legierte Sthle mit festgelegtenEigenschaften bei erhhten TemperaturenThis European Standard was approved 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 Eur
9、opeanStandard 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 any CEN member.This European Standard exists in three official versions (English
10、, 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 members are the national standards bodies of Austria, Belgium, Bulgaria, Cypr
11、us, Czech Republic, Denmark, Estonia, 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 STANDARDIZATIONCOMIT
12、EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-2:2009: EEN 10028-2:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2
13、 Normative references 4 3 Terms and definitions . 4 4 Dimensions and tolerances on dimensions . 4 5 Calculation of mass . 4 6 Classification and designation . 4 6.1 Classification 4 6.2 Designation 4 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information 5 7.2 Options . 5 7.3 Ex
14、ample for ordering . 5 8 Requirements . 6 8.1 Steelmaking process . 6 8.2 Delivery condition 6 8.3 Chemical composition 6 8.4 Mechanical properties . 8 8.5 Surface condition. 9 8.6 Internal soundness 9 8.7 Resistance to hydrogen induced cracking . 9 8.8 Embrittlement of CrMo steels . 9 9 Inspection
15、. 9 9.1 Types of inspection and inspection documents 9 9.2 Tests to be carried out 9 9.3 Retests 9 10 Sampling . 9 11 Test methods 10 12 Marking . 10 Annex A (informative) Guidelines for heat treatment 15 Annex B (informative) Critical time temperature parameter Pcrit.and possible combinations of st
16、ress relieving temperature and holding time 16 Annex C (informative) Reference data of strength values for 1 % (plastic) creep strain and creep rupture 17 Annex D (normative) Evaluation of resistance to hydrogen induced cracking 22 Annex E (normative) Step cooling test . 23 Annex ZA (informative) Re
17、lationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 24 Bibliography 25 EN 10028-2:2009 (E) 3 Foreword This document (EN 10028-2:2009) has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat of wh
18、ich 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 conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the p
19、ossibility 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 10028-2:2003. This European Standard consists of the following parts, under the gener
20、al 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 grain steels, normalized Part 4: Nickel alloy steels with specified low temperature properties Part 5: Wel
21、dable 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 relating to agreements that may be made at the time of enquiry and order. This document has been prepared
22、 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 97/23/EC, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENE
23、LEC 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, Luxemb
24、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 10028-2:2009 (E) 4 1 Scope This European Standard specifies requirements for flat products for pressure equipment made of weldable non-alloy and alloy steels with el
25、evated temperature properties as specified in Table 1. The requirements and definitions of EN 10028-1:2007 + A1:2009 also apply. NOTE 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 (E
26、SRs) of Directive 97/23/EC is limited to technical data of materials in this European Standard (Part 1 and this Part 2 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 aga
27、inst the design requirements of this specific item of equipment to verify that the ESRs 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 cite
28、d applies. For undated references, the latest edition of the referenced document (including 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
29、, Evaluation of resistance of steel products to hydrogen induced cracking (HIC) 3 Terms 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 mas
30、s See EN 10028-1:2007 + A1:2009. 6 Classification and designation 6.1 Classification In accordance with EN 10020, the grades P235GH, P265GH, P295GH and P355GH are non-alloy quality steels. All other grades are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. EN 10028-2:2009 (E) 5
31、 7 Information to be supplied by the purchaser 7.1 Mandatory information See EN 10028-1:2007 + A1:2009. 7.2 Options A number of options are specified in this European Standard and listed below. Additionally the relevant options of EN 10028-1:2007 + A1:2009 apply. If the purchaser does not indicate a
32、 wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see also EN 10028-1:2007 + A1:2009). 1) lower copper content and maximum tin content (see Table 1, footnote b); 2) minimum chromium content of 0,80% (s
33、ee Table 1, footnote f); 3) maximum carbon content of 0,17% for product thicknesses greater than 150 mm (see Table 1, footnote g); 4) tests in the simulated normalized condition (see 8.2.2); 5) delivery conditions deviating from those specified in Table 3 (see 8.2.2 and 8.2.3); 6) maximum carbon equ
34、ivalent value for P235GH, P265GH, P295GH and P355GH (see 8.3.3); 7) specification of a minimum impact energy of 40 J (see Table 3); 8) mechanical properties for product thicknesses 250 mm (see Table 3, footnote a); 9) specification of the delivery condition +QT where the usual delivery condition is
35、+NT (see Table 3, footnote c and Table 4, footnote c); 10) additional impact energy values (see Table 3, footnote f); 11) Rp0,2 values at elevated temperature for increased product thicknesses (see Table 4, footnote b); 12) HIC test in accordance with EN 10229 (see 8.7); 13) step cooling test in acc
36、ordance with Annex E (see 8.8); 14) mid thickness test pieces for the impact test (see Clause 10); 7.3 Example for ordering 10 plates with nominal dimensions, thickness = 50 mm, width = 2 000 mm, length = 10 000 mm, made of a steel grade with the name 16Mo3 and the number 1.5415 as specified in EN 1
37、0028-2, to be delivered untreated, inspection document 3.1 as specified in EN 10204: 10 plates 50 x 2 000 x 10 000 EN 10028-2 16Mo3+AR - Inspection document 3.1 or 10 plates 50 x 2 000 x 10 000 EN 10028-2 1.5415+AR Inspection document 3.1. EN 10028-2:2009 (E) 6 8 Requirements 8.1 Steelmaking process
38、 See EN 10028-1:2007 + A1:2009. 8.2 Delivery condition 8.2.1 Unless otherwise agreed at the time of enquiry and order, the products covered by this European Standard shall be supplied in the usual conditions given in Table 3 (see 8.2.3). 8.2.2 Normalizing may, at the discretion of manufacturer, be r
39、eplaced with normalizing rolling for the steel grades P235GH, P265GH, P295GH and P355GH. In this case, additional tests in the simulated normalized condition with an agreed frequency of testing may be agreed at the time of enquiry and order to verify that the specified properties are complied with.
40、8.2.3 If so agreed at the time of enquiry and order, products made of steel grades P235GH, P265GH, P295GH, P355GH and 16Mo3 may also be delivered in the untreated condition. Products made of one of the other alloy grades may be supplied in the tempered or normalized condition or, in exceptional case
41、s, in the untreated condition if so agreed (Annex A contains heat treatment information for the purchaser). In these cases, testing shall be carried out on test pieces in the usual delivery condition as indicated in Table 3. NOTE The testing of the test pieces in a simulated heat treated condition d
42、oes 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 properties. When in stre
43、ss relieving the intended time temperature parameter P = Ts(20 + lg t) 10-3 ,where Tsis the stress relieving temperature in K and T is the holding time in hours, exceeds the critical (Pcrit.) values in Annex B, the purchaser should in his enquiry and order inform the manufacturer accordingly and, wh
44、ere appropriate, tests on simulated heat treated samples can be agreed to check whether after such a treatment the properties specified in this document 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 th
45、e cast analysis. 8.3.2 The product analysis shall not deviate from the specified values for the cast analysis as specified in Table 1 by more than the values given in Table 2. 8.3.3 A maximum value for the carbon equivalent may be agreed upon at the time of enquiry and order for steel grades P235GH,
46、 P265GH, P295GH and P355GH. In this case, the following formula shall apply for calculation of the carbon equivalent value (CEV): 15CuNi5VMoCr6MnCCEV+=EN 10028-2:2009 (E) 7 Table 1 Chemical composition (cast analysis) aSteel grade % by mass Steel name Steel number C Si Mn P max. S max. AltotalN Cr C
47、ub Mo Nb Ni Ti max. V Others P235GH 1.0345 0,16 0,35 0,60cto 1,20 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,020 0,30 0,03 0,02 Cr+Cu+Mo+ Ni: 0,70 P265GH 1.0425 0,20 0,40 0,80cto 1,40 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,020 0,30 0,03 0,02P295GH 1.0481 0,08 to 0,20 0,40 0,90cto 1,50 0,025 0,010
48、0,020 0,012d 0,30 0,30 0,08 0,020 0,30 0,03 0,02 P355GH 1.0473 0,10 to 0,22 0,60 1,10 to 1,70 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,040 0,30 0,03 0,0216Mo3 1.5415 0,12 to 0,20 0,35 0,40 to 0,90 0,025 0,010 e 0,012 0,30 0,30 0,25 to 0,35 - 0,30 - - - 18MnMo4-5 1.5414 0,20 0,40 0,90 to 1,50 0,015
49、0,005 e 0,012 0,30 0,30 0,45 to 0,60 - 0,30 - - - 20MnMoNi4-5 1.63110,15 to 0,23 0,40 1,00 to 1,50 0,0200,010e 0,012 0,20 0,200,45 to 0,60- 0,40 to 0,80 - 0,02- 15NiCuMoNb5-6-4 1.6368 0,17 0,25 to 0,50 0,80 to 1,20 0,025 0,010 0,015 0,020 0,30 0,50 to 0,80 0,25 to 0,50 0,015 to 0,045 1,00 to 1,30 - - - 13CrMo4-5 1.7335 0,08 to 0,18 0,35 0,40 to 1,00 0,025 0,010 e 0,012 0,70fto 1,15 0,30 0,40 to 0
