EN 13445-6:2014/A1:2015

SLOVENSKI STANDARD
01-februar-2016
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Unfired pressure vessels - Part 6: Requirements for the design and fabrication of
pressure vessels and pressure parts constructed from spheroidal graphite cast iron
Unbefeuerte Druckbehälter - Teil 6: Anforderungen an die Konstruktion und Herstellung
von Druckbehältern und Druckbehälterteilen aus Gusseisen mit Kugelgraphit
Récipients sous pression non soumis à la flamme - Partie 6: Exigences pour la
conception et la fabrication des récipients sous pression et des parties sous pression
moulés en fonte à graphite sphéroïdal
Ta slovenski standard je istoveten z: EN 13445-6:2014/A1:2015
ICS:
23.020.32 7ODþQHSRVRGH Pressure vessels
77.140.01 Železni in jekleni izdelki na Iron and steel products in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13445-6:2014/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2015
EUROPÄISCHE NORM
ICS 23.020.30
English Version
Unfired pressure vessels - Part 6: Requirements for the
design and fabrication of pressure vessels and pressure
parts constructed from spheroidal graphite cast iron
Récipients sous pression non soumis à la flamme - Unbefeuerte Druckbehälter - Teil 6: Anforderungen an
Partie 6: Exigences pour la conception et la fabrication die Konstruktion und Herstellung von Druckbehältern
des récipients sous pression et des parties sous und Druckbehälterteilen aus Gusseisen mit
pression moulés en fonte à graphite sphéroïdal Kugelgraphit
This amendment A1 modifies the European Standard EN 13445-6:2014; it was approved by CEN on 22 August 2015.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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, 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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13445-6:2014/A1:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modification to Clause 1 Scope . 4
2 Modifications to Clause 2 Normative references . 4
3 Modification to 3.3 Symbols . 5
4 Modifications to 5.1 Materials . 5
5 Modification to 5.2.2.1.1 Principle . 6
6 Modification to 5.2.2.1.3 to 5.2.2.1.6 . 6
7 Modifications to 5.2.2.1.2.3 Design by experiment (DBE) . 6
8 Modification to 5.2.2.1.2.4 Determination of the hydraulic burst pressure and
maximum allowable pressure for static loading . 7
9 Modification to 5.2.2.1.7 Dynamic loading . 8
10 Modification to 5.2.2.1.8 to 5.2.2.1.10 . 8
11 Modification to 5.2.2.1.3.2 Simplified fatigue assessment (SFA) . 8
12 Modification to 5.3.2 Welding . 8
13 Modification to 7.1.3 Testing requirements for C = 0,9 . 8
Q
14 Modification to 7.1.7 Magnetic particle testing (only for ferritic grades) . 9
15 Modification to 7.1.8 Penetrant testing . 9
16 Modification to 7.2.2 Hydraulic test pressure . 9
17 Modification to A.2.1 Ferritic spheroidal graphite cast iron according to EN
1563:1997 . 10
18 Modification to A.2.2 Austenitic spheroidal graphite cast iron according to
EN 13835:2002 . 10
19 Modifications to D.5 General . 10
20 Modifications to D.6.3 Fatigue design curves . 11
21 Modifications to D.7.3 Fatigue design curves . 12
22 Modification to G.1 Scope . 13
23 Modification to H.1 Purpose . 13
24 Modification to H.3 Tests requirements . 14
25 Modification to H.3.2 Number of parts . 14
26 Modification to Annex Y History of EN 13445-6 . 14
27 Modification to Annex ZA . 15
28 Modification to the Bibliography . 16
European foreword
This document (EN 13445-6:2014/A1:2015) has been prepared by Technical Committee CEN/TC 54
“Unfired pressure vessels”, the secretariat of which is held by BSI.
This amendment to EN 13445-6:2014 shall be given the status of a national standard, either by
publication of an identical text or by endorsement, at the latest by April 2016, and conflicting national
standards shall be withdrawn at the latest by April 2016.
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 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/EU.
For relationship with EU Directive, 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,
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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Modification to Clause 1 Scope
Replace the existing Scope with the following:
“This European Standard specifies requirements for the design, materials, manufacturing and testing of
pressure vessels and pressure vessel parts intended for use with a maximum allowable pressure, PS,
equal or less than:
 100 bar when containing gases or liquids in group 1 or 2
 1000 bar when containing liquids in group 2 only.
and shell wall thicknesses not exceeding 60 mm, which are constructed of ferritic or austenitic
spheroidal graphite cast iron. The thickness limitation of the shell does not apply to thickness of
flanges, reinforcements, bosses etc.
NOTE 1 Austenitic spheroidal graphite cast iron grades are principally used for high and low temperature
applications and for their corrosion resistance properties.
NOTE 2 The allowable grades of spheroidal graphite cast iron are listed in Tables 3 and 4. Service conditions
are given in Clause 4.
This European standard, EN 13445-6, does not include lamellar graphite cast iron grades for ferritic and
austenitic grades with, with an elongation after fracture equal or less than 15 % which are explicitly
excluded. Requirements for the use of cast irons with an elongation after fracture equal or less than
15 % are given in EN 15776.”.
2 Modifications to Clause 2 Normative references
Insert the following additional standard references:
“EN 287-6:2010, Qualification test of welders — Fusion Welding — Part 6: Cast iron
EN 1011-8:2004, Welding — Recommendations for welding of metallic materials — Part 8: Welding of
cast irons
EN ISO 15614-3:2008, Specification and qualification of welding procedures for metallic materials —
Welding procedure test — Part 3: Fusion welding of non-alloyed and low-alloyed cast irons (ISO 15614-
3:2008)”.
Modify the edition of the following standard references:
“EN 1563:2011, Founding — Spheroidal graphite cast irons
EN 13835:2012, Founding — Austenitic cast irons”.
3 Modification to 3.3 Symbols
Replace symbol R in Table 3.3-1 with the following:
m(3)
“Table 3.3-1 — Symbols
Symbol Quantity Unit
Average material strength from 3 test samples for MPa
RM3
DBE purposes
”.
4 Modifications to 5.1 Materials
Add the following new second paragraph:
“The material grades listed in Table 5.1-1 and Table 5.1-2 may be produced in the as-cast or heat
treated condition (see EN 1563:2012, Clause 6).”.

Replace Tables 5.1-1 and 5.1-2 with the following:
“Table 5.1-1 — Allowable material grades for usual design temperatures (-10 °C up to 300 °C)
a
Material standard Design temperature
Material designation
limits
Symbol Number
°C
EN-GJS-350-22-RT 5.3101
-10 ≤ TS ≤ 300
EN-GJS-350-22 5.3102 -10 ≤ TS ≤ 300
EN-GJS-400-18-RT 5.3104
EN 1563:2012 -10 ≤ TS ≤ 300
EN-GJS-400-18 5.3105 -10 ≤ TS ≤ 300
EN-GJS-450-18 5.3108
-10 ≤ TS ≤ 300
a
When materials specified in these tables are not available, other suitable materials may be used when the
technical documentation defining the characteristics of the materials has been accepted in accordance with the
requirements for European approval for materials (EAM) or particular material appraisal (PMA).

Table 5.1-2 — Allowable material grades for low or high temperature design conditions
a
Design temperature
Material designation
limits
Material standard
Symbol Number
°C
EN-GJS-350-22-LT 5.3100 -40 ≤ TS ≤ 300
EN 1563:2012
EN-GJS-400-18-LT 5.3103
-20 ≤ TS ≤ 300
EN-GJSA-XNiMn23-4 5.3501 -196 ≤ TS ≤ 300
EN 13835:2012 EN-GJSA-XNi22 5.3503
-40 ≤ TS ≤ 540
EN-GJSA-XNiMn13-7 5.3506 -40 ≤ TS ≤ 300
a
When materials specified in these tables are not available, other suitable materials may be used when
the technical documentation defining the characteristics of the materials has been accepted in
accordance with the requirements for European approval for materials (EAM) or particular material
appraisal (PMA).
”.
5 Modification to 5.2.2.1.1 Principle
Insert the following notes after the fifth paragraph:
“NOTE 1 Testing factors (0,8 or 0,9) are already accounted for in determining nominal design stress in 5.2.2.2 of
this Part 6.
NOTE 2 For non-circular sections (rectangular sections), see EN13445-3:2014, Clause 15 (see remark about
fatigue design and radius requirements in 5.2.2.7).”.
6 Modification to 5.2.2.1.3 to 5.2.2.1.6
Renumber 5.2.2.1.3 to 5.2.2.1.6 as follows:
“5.2.2.1.2.1 Design by formula (DBF)
5.2.2.1.2.2 Design by analysis (DBA)
5.2.2.1.2.3 Design by experiment (DBE)
5.2.2.1.2.4 Determination of the hydraulic burst pressure and maximum allowable pressure for
static loading”.
7 Modifications to 5.2.2.1.2.3 Design by experiment (DBE)
Replace R with RM3 in equation 5-1 as follows:
m(3)
n

S⋅⋅PS RM3
“ ee⋅ (5-1)”.
a act

P ⋅R ⋅⋅⋅C C C
b,act p0,2 Q T e

=
Insert the following text immediately after the explanation of variables:

“For determining RM3 three tensile test specimens shall be performed in accordance with
EN 1563:2012 or EN 13835:2012 material standards for each of the required positions taken from the
same cast.
The specimen positions shall be in accordance with the specifications in the technical delivery
conditions of the product form
...