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 978-0-626-22685-5 SANS 50028-3:2009Edition 1EN 10028-3:2009Edition 3SOUTH AFRICAN NATIONAL STANDARD Flat products made of steels for pressure purpos
4、es Part 3: Weldable fine grain steels, normalized This national standard is the identical implementation of EN 10028-3:2009 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001
5、Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 50028-3:2009 Edition 1 EN 10028-3:2009 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1077, Engineering Materials - Ferrous metals, in accorda
6、nce 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 10028-3June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-3:2003 English VersionFlat produc
7、ts made of steels 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 Stand
8、ard 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such n
9、ationalstandards 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
10、notified to the 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, M
11、alta, Netherlands, 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 exploit
12、ation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-3:2009: EEN 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 Classificat
13、ion 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 Mechanical
14、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 (normative
15、) 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 EN 10028-3:2009 (E) 3 Foreword This document (EN 10028-3:2009) has been prepared by Technical Com
16、mittee 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 conflicting national stan
17、dards 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 document supersedes EN 1
18、0028-3:2003. 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 grain steels, normaliz
19、ed 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 relating to agreement
20、s 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 97/23/EC, see informa
21、tive 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, Estonia, Finland,
22、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. EN 10028-3:2009 (E) 4 1 Scope This European Standard specifies requirements for flat
23、 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 EN 10028-1:2007 + A1:2009 also apply.
24、 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 Standard (Part 1 and this Part 3 of the
25、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 of Directive 97/23/EC are satisfied, n
26、eeds 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 (including any amendments) applies. EN 10028-
27、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 and definitions For the purposes of th
28、is 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 6.1.1 The steel grades covered by this do
29、cument 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). EN 10028-3:2009 (E) 5 6.1.2 The grades P275NH, P275NL1, P355N, P355NH and P355NL1 are non-alloy quality
30、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 information See EN 10028-1:2007 + A1:2009. 7.2 Options A
31、 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 order, the products shall be supplied in accordance with th
32、e 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 properties for increased product thicknesses (see Table 4
33、, 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 for increased product thicknesses (see Table 5, footnot
34、e 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 for longitudinal test pieces (see clause 11); 12) use of
35、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 the number 1.1104 as specified in EN 10028-3, to be deli
36、vered 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. EN 10028-3:2009 (E) 6 8 Requirements 8.1 Steelmaking process See EN 10028-1:2007 +
37、 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 strength 460 MPa, delayed cooling or additional tempering may be necessary
38、 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 rolling for the steel grades P275NH, P275NL1, P275NL2, P355N, P355NH, P355
39、NL1 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 specified properties are complied with. 8.2.3 If so agreed at the time of enqui
40、ry 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 heat treated condition does not discharge the processor from the obligatio
41、n 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 stress relieving the intended time temperature paramet
42、er 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 case of steel grade P460NH and 16,3 in the case of steel grades P460NL1 and
43、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 specified in this European Standard can still be regarded as valid. 8.3 Chem
44、ical 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 specified in Table 1 by more than the values given in Table 2. 8.3.3 A maximum v
45、alue for the carbon equivalent in accordance with Table 3 may be agreed upon at the time of enquiry and order. EN 10028-3:2009 (E) 7 Table 1 Chemical composition (cast analysis) aSteel grade % by mass Steel name Steel numberC max. Si max. Mn P max. S max. Altotal min. N max. Cr max. Cu max. Mo max.
46、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 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,
47、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 1.8918 0,020 0,005 a Elements not listed in this table shall not be intentionally added to the st
48、eel 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 which may adversely affect the mechanical properties and usability. bFor product thicknesses 1
49、,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 product 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
