EN 13445-6:2002/A3:2008

SLOVENSKI STANDARD
01-april-2009
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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 a la flamme - Partie 6: Exigences pour la
conception et la fabrication des récipients sous pression et des parties sous pression
moulés en fonte a graphite sphéroidal
Ta slovenski standard je istoveten z: EN 13445-6:2002/A3:2008
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13445-6:2002/A3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2008
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 - Partie Unbefeuerte Druckbehälter - Teil 6: Anforderungen an die
6: Exigences pour la conception et la fabrication des Konstruktion und Herstellung von Druckbehältern und
récipients sous pression et des parties sous pression Druckbehälterteilen aus Gusseisen mit Kugelgraphit
moulés en fonte à graphite sphéroïdal
This amendment A3 modifies the European Standard EN 13445-6:2002; it was approved by CEN on 9 August 2008.
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 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 Management Centre has the same status as the official
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, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13445-6:2002/A3:2008: E
worldwide for CEN national Members.

Contents Page
Foreword .3
2 Normative references .4
3 Terms, definitions, units and symbols .5
4 Service conditions .5
5 Requirements .5
5.1 Materials .5
5.2 Design .6
6 Material testing .6
7 Testing and final assessment .7
Annex D (normative) Assessment of fatigue life .8
D.5 General .8
D.6 Simplified fatigue assessment .8
D.7 Detailed fatigue assessment . 13
Annex H (normative) Experimental cyclic pressure testing procedure . 14
H.4 Allowable number of cycles . 14
Bibliography . 16

Foreword
This document (EN 13445-6:2002/A3:2008) has been prepared by Technical Committee CEN/TC 54 “Unfired
pressure vessels”, the secretariat of which is held by BSI.
This Amendment to the European Standard EN 13445-6:2002 shall be given the status of a national standard,
either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national
standards shall be withdrawn at the latest by May 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 has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document.
This document includes the text of the amendment itself. The corrected pages of EN 13445-6 will be delivered
as issue 33 of the standard.
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, 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.

2 Normative references
Update the following normative references:
EN 764-5:2002, Pressure equipment — Part 5: Compliance and Inspection Documentation of Materials
EN 1563:1997, Founding — Spheroidal graphite cast irons (and Amendments A1:2002, A2:2005)
EN 12680-3:2003, Founding — Ultrasonic examination — Part 3: Spheroidal graphite cast iron castings
EN 12681:2003, Founding — Radiographic examination
EN 13835:2002, Founding - Austenitic cast irons (and Amendment A1:2006)

Delete the normative reference for ISO 8062 and replace with the following:
EN ISO 8062-1:2007, Geometrical product specifications (GPS) - Dimensional and geometrical tolerances for
moulded parts - Part 1: Vocabulary (ISO 8062-1:2007)
EN ISO 8062-3:2007, Geometrical product specifications (GPS) - Dimensional and geometrical tolerances for
moulded parts - Part 3: General dimensional and geometrical tolerances and machining allowances for
castings (ISO 8062-3:2007)
3 Terms, definitions, units and symbols
Replace the following symbols in Table 3.3.1:
Table 3.3-1 – Symbols
c
Corrosion allowance mm
f Nominal design stress N/mm²
TS TS Minimum / maximum allowable temperature °C
min , max
Temperature factor dimensionless
C
T
C Testing factor dimensionless
Q
n
Factor depending on shape of shell dimensionless
S  Safety factor dimensionless
γ  Partial safety factor dimensionless
R
δ Casting tolerance mm
ε
Extra thickness due to casting process mm
ν  Poisson’s ratio dimensionless
4 Service conditions
Delete the word "concentration" from the first paragraph of 4.1, from Table 4.1-1and from NOTE 2 of Table
4.1-1:
5 Requirements
5.1 Materials
Replace the bullet points below Table 5.1-2:
• mean value from 3 tests 12 J for e ≤ 60 mm;
act
• 10 J for 60 mm ≤ e ≤ 200 mm;
act
• individual value 9 J for e ≤ 60 mm and 7 J for 60 mm ≤ e ≤ 200 mm.
act act
5.2 Design
Correct in the first paragraph of 5.2.2.1.5 “5.2.3” in “5.2.2.1.6”.
Replace equation 5.2-1:
n
 
S ⋅PS ⋅R
m(3)
 
e =e ⋅ (5-1)
a act
 
P ⋅R ⋅C ⋅C ⋅C
b,act p0,2 Q T e
 
Renumber Equation (5.2-2) as (5-2).
Renumber Equations (5.2-4) and (5.2-5) as (5-3) and (5-4).
Replace clause 5.2.2.1.8:
5.2.2.1.8 Simplified fatigue assessment (SFA)
A simplified fatigue assessment will return a value of maximum allowable number of equivalent pressure
fluctuations under service conditions. The assessment shall be performed according to Annex D.
A maximum stress factor of 3 is pre-supposed, unless for construction details as limited in Table D.1A where
equal or lower values than 3 may be used.
NOTE This Table D.1A may also be used for other metallic castings than spheroidal graphite cast iron (e.g. cast
steel, cast aluminium and so on).
Replace equation 5.2-1:
n
 S ⋅PS ⋅R 
m(3)
 
e =e ⋅
a act
 
P ⋅R ⋅C ⋅C ⋅C
b,act p0,2 Q T e
 
Replace the third paragraph of 5.2.2.1.10:
Cyclic loading shall be in accordance with EN 13445-3:2002, Clause 5.3.
Replace in Table 5.2-1 “Safety factor SF” by “Safety factor S”

Replace equation 5.2-11:
f = R ⋅C ⋅C
p0,2 /T Q e
...