SIST EN 10028-3:2017

SLOVENSKI STANDARD
SIST EN 10028-3:2017
01-oktober-2017
1DGRPHãþD
SIST EN 10028-3:2009
]UQDWDMHNOD3ORãþDWLMHNOHQLL]GHONL]DWODþQHSRVRGHGHO9DULYDGUREQR
QRUPDOL]LUDQD
Flat products made of steels for pressure purposes - Part 3: Weldable fine grain steels,
normalized
Flacherzeugnisse aus Druckbehälterstählen - Teil 3: Schweißgeeignete
Feinkornbaustähle, normalgeglüht
Produits plats en aciers pour appareils à pression - Partie 3 : Aciers soudables a grains
fins, normalisés
Ta slovenski standard je istoveten z: EN 10028-3:2017
ICS:
77.140.30 Jekla za uporabo pod tlakom Steels for pressure purposes
77.140.50 3ORãþDWLMHNOHQLL]GHONLLQ Flat steel products and semi-
SROL]GHONL products
SIST EN 10028-3:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 10028-3:2017

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SIST EN 10028-3:2017


EN 10028-3
EUROPEAN STANDARD

NORME EUROPÉENNE

July 2017
EUROPÄISCHE NORM
ICS 77.140.30; 77.140.50 Supersedes EN 10028-3:2009
English Version

Flat products made of steels for pressure purposes - Part
3: Weldable fine grain steels, normalized
Produits plats en aciers pour appareils à pression - Flacherzeugnisse aus Druckbehälterstählen - Teil 3:
Partie 3 : Aciers soudables à grains fins, normalisés Schweißgeeignete Feinkornbaustähle, normalgeglüht
This European Standard was approved by CEN on 7 May 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10028-3:2017 E
worldwide for CEN national Members.

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SIST EN 10028-3:2017
EN 10028-3:2017 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Tolerances on dimensions . 4
5 Calculation of mass . 4
6 Classification and designation . 5
6.1 Classification . 5
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. 6
8 Requirements . 6
8.1 Steelmaking process . 6
8.2 Delivery condition . 6
8.3 Chemical composition . 6
8.4 Mechanical 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, sorting and reprocessing . 10
10 Sampling . 10
11 Test methods . 10
12 Marking . 10
Annex A (normative) Evaluation of resistance to hydrogen induced cracking . 14
Annex B (informative) Information on welding . 15
Annex C (informative) Changes to the previous version EN 10028-3:2009 . 16
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2014/68/EU aimed to be covered . 17
Bibliography. 18

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SIST EN 10028-3:2017
EN 10028-3:2017 (E)
European foreword
This document (EN 10028-3:2017) has been prepared by Technical Committee ECISS/TC 107 “Steels
for pressure purposes”, 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 January 2018 and conflicting national standards shall
be withdrawn at the latest by January 2018.
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 10028-3:2009.
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 Directive 2014/68/EU.
For relationship with Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this
document.
A list of changes between this document and the previous version can be found in Annex C.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
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SIST EN 10028-3:2017
EN 10028-3:2017 (E)
1 Scope
This European Standard 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 EN 10028-1:2017 also apply.
NOTE 2 Once this European Standard is published in the EU Official Journal (OJEU) under Directive
2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is
limited to technical data of materials in this European Standard (Part 1 and the other relevant part 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 of Directive 2014/68/EU are satisfied, needs to be done.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 1011-1:2009, Welding - Recommendations for welding of metallic materials - Part 1: General guidance
for arc welding
EN 1011-2:2001, Welding - Recommendations for welding of metallic materials - Part 2: Arc welding of
ferritic steels
EN 10028-1:2017, 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 this document, the terms and definitions given in EN 10028-1:2017 apply.
4 Tolerances on dimensions
See EN 10028-1:2017.
5 Calculation of mass
See EN 10028-1:2017.
4

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SIST EN 10028-3:2017
EN 10028-3:2017 (E)
6 Classification and designation
6.1 Classification
6.1.1 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).
6.1.2 The grades P275NH to P355NL2 are alloy quality steels, the grades P275NL2 and the grades
P420NH to P460NL2 are alloy special steels.
6.2 Designation
See EN 10028-1:2017.
7 Information to be supplied by the purchaser
7.1 Mandatory information
See EN 10028-1:2017.
7.2 Options
A number of options are specified in this document and listed below. Additionally the relevant options
of EN 10028-1:2017 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 the basic
specification (see also EN 10028-1:2017).
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) no option, intentionally left blank;
5) modified values for R and R for grades P460NH and P460NL1 (see Table 4, footnote a);
eH m
6) application of the R values of Table 5 for the corresponding P.NL1 and P…NL2 grade (see 8.4.2);
p0,2
7) no option, intentionally left blank;
8) specification of a minimum impact energy of 40 J (see 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 test solution B for the HIC test with agreed acceptance criteria (see Annex A);
13) limitation of copper and/or tin content (see Table 1, footnote g).
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SIST EN 10028-3:2017
EN 10028-3:2017 (E)
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 P275NL2 and 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 × 2000 × 10000 – EN 10028–3 – P275NL2 – Inspection certificate 3.1.
or
10 plates – 50 × 2000 × 10000 – EN 10028–3 – 1.1104 – Inspection certificate 3.1.
8 Requirements
8.1 Steelmaking process
See EN 10028-1:2017.
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 minimum yield strength ≥ 420 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 rolling for
all steel grades covered by this standard. 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 agreed at the time of enquiry and order, products covered by this document may also be
deliv
...