EN 10028-3:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flat products made of steels for pressure purposes - Part 3: Weldable fine grain steels, normalizedQRUPDOL]LUDQDProduits plats en aciers pour appareils a pression - Partie 3: Aciers soudables a grains fins, normalisésFlacherzeugnisse aus Druckbehälterstählen - Teil 3: Schweißgeeignete Feinkornbaustähle, normalgeglühtTa slovenski standard je istoveten z:EN 10028-3:2003SIST EN 10028-3:2003en77.140.5077.140.30ICS:SIST EN 10028-3:19971DGRPHãþDSLOVENSKI
STANDARDSIST EN 10028-3:200301-november-2003

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10028-3June 2003ICS 77.140.30; 77.140.50Supersedes EN 10028-3:1992English versionFlat products made of steels for pressure purposes - Part 3:Weldable fine grain steels, normalizedProduits plats en aciers pour appareils à pression - Partie3: Aciers soudables à grains fins, normalisésFlacherzeugnisse aus Druckbehälterstählen - Teil 3:Schweißgeeignete Feinkornbaustähle, normalgeglühtThis European Standard was approved by CEN on 20 January 2003.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 may be obtained on application to the 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-3:2003 E

Evaluation of resistance to hydrogen induced cracking.13Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.14Bibliography.15

EN 10028-1).a) tests in the simulated normalized condition (see 8.2.2);b) delivery of products in the untreated condition (see 8.2.3);c) maximum carbon equivalent value (see 8.3.3);d) application of the Rp0,2 values of Table 5 for the corresponding P.NL1 and P…NL2 grade (see 8.4.2);e) HIC test in accordance with EN 10229 (see 8.7);f) mid thickness test pieces for the impact test (see clause 10);g) verification of impact energy for longitudinal test pieces (see clause 11);h) tensile properties for increased product thicknesses (see Table 4, footnote c);i) Rp0,2 values at elevated temperatures for increased product thicknesses (see Table 5, footnote b);j) use of test solution B for the HIC test with agreed acceptance criteria (see annex A).7.3 Example for ordering10 plates with nominal dimensions, thickness = 50 mm, width = 2000 mm, length = 10 000 mm, made of a steelgrade with the name P275NL2 and the number 1.1104 as specified in EN 10028-3, to be delivered with inspectioncertificate 3.1.B as specified in EN 10204:10 plates – 50 x 2000 x 10000 – EN 10028-3
P275NL2 - Inspection certificate 3.1.Bor10 plates – 50 x 2000 x 10000 – EN 10028-3
1.1104 – Inspection certificate 3.1.B.8 Requirements8.1 Steelmaking processSee EN 10028-1.

Unless otherwise agreed at the time of enquiry and order (see 8.2.3), the products covered by this standardshall be supplied in the normalized condition.For steels with a minimum yield strength
460 MPa, delayed cooling or additional tempering may be necessary forsmall product thicknesses and in special cases. If such a treatment is performed, this shall be noted in theinspection document.8.2.2
Normalizing may, at the discretion of the manufacturer, be replaced with normalizing rolling for thesteel grades P275NH, P275NL1, P275NL2, P355N, P355NH, P355NL1 and P355NL2 (see 3.1 in EN 10028-1:2000 + A1:2002). In this case, tests on simulated normalized samples with an agreed frequency of testing maybe 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 enquiry and order, products covered by this standard may also bedelivered in the untreated condition.In these cases, testing shall be carried out in the simulated normalized condition (but see 8.2.1).NOTETesting in a simulated heat treated condition does not discharge the processor from the obligation of providing proofof the specified properties in the finished product.8.2.4 Information on welding is given in EN 1011-1 and EN 1011-2.NOTEExcessive post weld heat treatment (PWHT) conditions can decrease the mechanical properties. When in stressrelieving the intended time temperature parameterP = Ts (20 + lg t) x 10-3,whereTs is the stress relieving temperature in K andt
is the holding time in hours,is exceeding the critical P value of Pcrit. = 17,3, the purchaser should in his enquiry and order inform themanufacturer accordingly and, where appropriate, tests on simulated heat treated samples may be agreed to checkwhether after such a treatment the properties specified in this standard can still be regarded as valid.8.3 Chemical composition8.3.1
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 1by more than the values given in Table 2.8.3.3
A maximum value for the carbon equivalent in accordance with Tabl
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