EN 13445-2:2002/A5:2009

SLOVENSKI STANDARD
01-april-2009
1HRJUHYDQHWODþQHSRVRGHGHO0DWHULDOL
Unfired pressure vessels - Part 2: Materials
Unbefeuerte Druckbehälter - Teil 2: Werkstoffe
Récipients sous pression non soumis a la flamme - Partie 2: Matériaux
Ta slovenski standard je istoveten z: EN 13445-2:2002/A5:2009
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 13445-2:2002/A5
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2009
ICS 23.020.30
English Version
Unfired pressure vessels - Part 2: Materials
Récipients sous pression non soumis à la flamme - Partie Unbefeuerte Druckbehälter - Teil 2: Werkstoffe
2: Matériaux
This amendment A5 modifies the European Standard EN 13445-2:2002; 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: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13445-2:2002/A5:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
2 Normative references .4
Annex B (normative) Requirements for prevention of brittle fracture at low temperatures .6
B.1 General .6
B.2 Material selection and impact energy requirements .7
B.2.1 Method 1 .7
B.2.2 Method 2 . 15
B.2.3 Method 3 — Fracture mechanics analysis . 22
B.3 General test requirements . 23
B.3.1 General . 23
B.3.2 Sub-sized specimens . 23
B.4 Welds . 24
B.4.1 General . 24
B.4.2 Welding procedure qualification . 25
B.4.3 Production test plates . 25
B.5 Materials for use at elevated temperatures . 25
B.5.1 General . 25
B.5.2 Materials . 25
B.5.3 Welding procedure qualification and production test plates . 25
B.5.4 Start up and shut down procedure . 25
B.5.5 Pressure test . 26
Bibliography . 33

Foreword
This document (EN 13445-2:2002/A5:2009) 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 13445-2:2002 shall be given the status of a national standard,
either by publication of an identical text or by endorsement, at the latest by July 2009, and conflicting national
standards shall be withdrawn at the latest by July 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 13445-2 will be delivered
as issue 35 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.

Add the following references to clause 2:
2 Normative references
EN 1092-1:2007, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 10028-2:2003, Flat products made of steels for pressure purposes — Part 2: Non-alloy and alloy steels
with specified elevated temperature properties.
EN 10028-3:2003, Flat products made of steels for pressure purposes — Part 3: Weldable fine grain steels,
normalized.
EN 10028-4:2003, Flat products made of steels for pressure purposes — Part 4: Nickel alloy steels with
specified low temperature properties.
EN 10028-5:2003, Flat products made of steels for pressure purposes — Part 5: Weldable fine grain steels,
thermomechanically rolled.
EN 10028-6:2003, Flat products made of steels for pressure purposes — Part 6: Weldable fine grain steels,
quenched and tempered.
EN 10028-7:2007, Flat products made of steels for pressure purposes — Part 7: Stainless steels.
EN 10216-3:2002, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 3:
Alloy fine grain steel tubes
EN 10216-4:2002, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 4:
Non-alloy and alloy steel tubes with specified low temperature properties
EN 10217-3:2002, Welded steel tubes for pressure purposes — Technical delivery conditions —
Part 3: Alloy fine grain steel tubes
EN 10217-4:2002, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 4:
Electric welded non-alloy steel tubes with specified low temperature properties.
EN 10217-6:2002, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 6:
Submerged arc welded non-alloy steel tubes with specified low temperature properties.
EN 10222-3:1998, Pièces forgées en acier pour appareils à pression — Partie 3 : Aciers au nickel avec
caractéristiques spécifiées à basse température.
EN 10222-4:1998, Steel forgings for pressure purposes — Part 4: Weldable fine grain steels with high proof
strength
EN 10269:1999, Steels and nickel alloys for fasteners with specified elevated and/or low temperature
properties
EN 10273:2007, Hot rolled weldable steel bars for pressure purposes with specified elevated temperature
properties.
EN 20898-2:1993, Mechanical properties of fasteners — Part 2: Nuts with specified proof load values —
Coarse thread (ISO 898-2:1992)
EN ISO 898-1:1999, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs (ISO 898-1:1999)
EN ISO 3506-1:1997, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 1: Bolts,
screws and studs (ISO 3506- 1:1997)
EN ISO 3506-2:1997, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 2: Nuts
(ISO 3506-2:1997)
Delete existing Annex B and replace it with the following text:
Annex B
(normative)
Requirements for prevention of brittle fracture at low temperatures
B.1 General
This annex distinguishes between pressure equipment that has design temperature for normal operation
higher or lower than 50 °C.
For pressure equipment with normal operation temperatures higher than 50 °C B.5 applies. If B.5 is not
applicable, the following rules for lower normal operation temperatures shall be used.
For pressure equipment with design temperature equal to or less than 50 °C this annex specifies three
1)
alternative methods for establishing criteria for the prevention of low temperature brittle fracture of steels in
the form of plate, strip, tubes, fittings, forgings, castings, flanges, fasteners and weldments used in pressure
parts. The criteria are based on impact energy requirements at specified temperatures for the base material,
heat affected zone (including the fusion line) and weld metals.
The three methods are:
Method 1 Code of Practice:
a) Technical requirements based on the choice of T = T as specified in harmonised
R 27J
European Material Standards and on the assumption that it is possible to achieve these
minimum properties after fabrication. Calculated from the principles of fracture mechanics
used for method 2 for C and CMn steels with yield strength < 460 MPa and
b) based on operating experience for Ni-alloyed steels with Ni ≥ 3 % up to 9 %, for austenitic
steels and for bolts and nuts.
Method 2 Method developed from the principles of fracture mechanics and from operating experiences:
A more flexible approach than method 1 for derivation of technical requirements applicable to C,
CMn and low alloy ferritic steels with a specified minimum yield strength ≤ 500 MPa and for
austenitic-ferritic steels with a specified minimum yield strength ≤ 550 MPa. This method can be
applied for these steels to a wider range of thicknesses and temperatures than method 1
because T must not be equal to T (see Figures B.2–1 to B.2–11). In addition for ferritic
R 27J
steels with max 355 MPa in PWHT condition operation experience was considered for higher
thicknesses.
Method 3 The application of a fracture mechanics analysis. This general method is applicable to cases
not covered by methods 1 or 2. This method may also be used to justify deviations from the
requirements of method 1 or 2. Only general guidance is given on the use of this method which
shall only be used in agreement with the parties concerned.
Each of the three methods may be used independently. It is only necessary to satisfy the requirement of any
one method.
1)
Including temperatures at pressure tests
All applicable combinations of the temperatures T (minimum metal temperature) and T (temperature
M S
adjustment term) shall be considered and the lowest possible T -value (design reference temperature) shall
R
be used for the determination of the required material impact test temperature.
NOTE For definitions of temperature terms see 3.1.1 to 3.1.4.
B.2 Material selection and impact energy requirements
B.2.1 Introduction
The methods specified in B.2.2 (method 1) or B.2.3 (method 2) shall be used to determine the impact energy
required to avoid brittle fracture. Alternatively, B.2.4 (method 3) may be used to determine the required
toughness. The method used shall be fully documented, in order to ensure that compliance can be verified.
Reference thickness for constructional details is defined in Table B.4-1.
B.2.2 Method 1
B.2.2.1 General
Method 1 allows the selection of materials taken from harmonised European material standards with regard to
prevention of brittle fracture. Table B.2–1 gives an overview to the following tables by steel type and product
form.
The weld metal, the heat affected zone and other parts affected by manufacturing processes shall satisfy the
same impact energy requirements as the guaranteed minimum properties for the base material at T given in
R
the tables.
The Table lists design reference temperatures for maximum thickness at given strength levels represented by
steels from harmonised European material standards with guaranteed minimum strength and impact
properties. Where it is not possible to achieve these minimum properties after fabrication, a tougher starting
material shall be selected.
Table B.2–1 ― Guide to material selection
Table Material or product form Steel group Clause
B.2–2 Plates and strips Ferritic steels B.2.2.2
B.2–3 Seamless and welded pipes
B.2–4 Bars
B.2–5 Forgings
B.2–6 Ni alloyed steels (1,5 < Ni ≤ 5 %) Ferritic steels B.2.2.3
B.2–7 Ni-alloyed steel (9 % Ni)
B.2–8 Ferritic steels B.2.2.4
B.2–9 Bolts and nuts Austenitic steels
B.2–10
B.2–11 Austenitic steel grades Austenitic steels B.2.2.5

NOTE Requirements for austenitic-ferritic steels are only given in B.2.3 (method 2).
Where test pieces of at least 5 mm wide can not be obtained the material need not be subject to impact
testing.
Values of the design reference temperature T shall be calculated from the metal temperature T using the
R M
values of the temperature adjustment T given in Table B.2–12.
S
B.2.2.2 Ferritic steels
Tables B.2–2 to B.2–5 list ferritic steels taken from harmonised European material standards with specified
impact properties below –10 °C.
The tabulated value of T is based on the impact test temperature T for KV = 27 J.
R KV
Table B.2–2 — General requirements for prevention of brittle
fracture with reference thickness for plates and strips
Plates and Strips
No. European Grade Material Max. reference Design Material Remarks
as per Standard No. thickness reference group to
e
Table temperature CR ISO
B
E.2-1 T (°C) 15608:2000
AW PWHT
R
1 P235GH 1.0345 35 90
EN 1.1
2 P265GH 1.0425 35 75
10028- – 20
3 P295GH 1.0481 35 65
2:2003
1.2
4 P355GH 1.0473 35 55
29 P275NH 1.0487 35 75 – 20
30 P275NL1 1.0488 35 75 – 40 1.1
31 EN P275NL2 1.1104 35 90 – 50
32 P3510028- 5N 1.0562 35 55 – 20
3:2003
33 P355NH 1.0565 35 55 – 20
1.2
34 P355NL1 1.0566 35 55 – 40
35 P355NL2 1.1106 35 55 – 50
39 EN 11MnNi5-3 1.6212 35 50 – 60
40 13Mn10028- Ni6-3 1.6217 35 50 – 60 9.1
4:2003
41 15NiMn6 1.6228 35 50 – 80
a)
50 P355M 1.8821 35 - – 20
a)
51 P355ML1 1.8832 35 - – 40 1.2
EN a)
52 P355ML2 1.8833 35 - – 50
10028- a)
53 P420M 1.8824 35 - – 20
5:2003
a)
54 P420ML1 1.8835 35 - – 40 2.1
a)
55 P420ML2 1.8828 35 - – 50
59 P355Q 1.8866 35 60 – 20
EN
60 P355QH 1.8867 35 60 – 20 1.2
10028-
61 P355QL1 1.8868 35 60 – 40
6:2003
62 P355QL2 1.8869 35 60 – 60 3.1
a)
TMCP steels shall not be Post Weld Heat Treated

Table B.2–3 — General requirements for prevention of brittle fracture
with reference thickness for seamless and welded tubes
Seamless and welded tubes
No. European Grade Material Max. reference Design Material Remarks
as per Standard No. thickness reference group to
Table e temperature CR ISO
B
E.2-1 AW PWHT T (°C) 15608:2000
R
231 P275NL1 1.0488 35 75 – 40
1.1
232 P275NL2 1.1104 35 75 – 50
EN
233 P355N 1.0562 35 55 – 20
10216-
234 P355NH 1.0565 35 55 – 20
3:2002
1.2
235 P355NL1 1.0566 35 55 – 40
236 P355NL2 1.1106 35 55 – 50
a)
248 P215NL 1.0451 10 10 – 40
249 P255QL 1.0452 35 40 – 50 1.1
EN
250 P265NL 1.0453 25 25 – 40
10216-
251 26CrMo4-2 1.7219 15 40 – 60 5.1
4:2002
252 11MnNi5-3 1.6212 35 40 – 60 9.1
253 13MnNi6-3 1.6217 35 40 – 60 9.1
306 P275NL1 1.0488 35 40 – 40
1.1
307 P275NL2 1.1104 35 40 – 50
EN
308 P355N 1.0562 35 40 – 20
10217-
309 P355NH 1.0565 35 40 – 20
3:2002 1.2
310 P355NL1 1.0566 35 40 – 40
311 P355NL2 1.1106 35 40 – 50
a)
316 EN P215NL 1.0451 10 10 – 40 1.1
a)
317 P2610217- 5NL 1.0453 16 16 – 40 1.1
4:2002
a)
321 EN P215NL 1.0451 10 10 – 40 1.1
a)
322 P2610217- 5NL 1.0453 25 25 – 40 1.1
6:2002
a)
Thickness limitation results from wall thickness limitation in the European material standard and in the European component
standards respectively.
Table B.2–4 — General requirements for prevention of
brittle fracture with reference thickness for bars
Bars
No. European Grade Material Max. reference Design Material Remarks
as per Standard No. thickness reference group to
Table e temperature CR ISO
B
E.2-1 AW PWHT T (°C) 15608:2000
R
147 P275NH 1.0487 35 75 1.1
EN
148 P355NH 1.0565 35 55 – 20 1.2
10273:2000
150 P355QH 1.8867 35 55 1.2
Table B.2–5 — General requirements for prevention of
brittle fracture with reference thickness for forgings
Forgings
No. European Grade Material Max. ref. Design Material Remarks
as per Standard No. thickness reference group to
Table e temperature CR ISO
B
E.2-1 AW PWHT T (°C) 15608:2000
R
367 EN 10222- 13MnNi6-3 1.6217 35 70 – 60 9.1
369 15Ni3:1998 Mn6 1.6228 35 50 – 80 9.1
378 EN 10222- P285QH 1.0478 35 85 – 20 1.2
380 P354:1998 5QH1 1.0571 35 60 – 20 1.2
382 P420QH 1.8936 35 50 – 20 3.1

B.2.2.3 Ni –alloyed steels (Ni > 1,5 %)
Table B.2-6 lists Ni alloyed steels up to and including 5 % Nickel taken from harmonised European material
standards.
Table B.2-7 lists Ni alloyed steels with 9 % Nickel taken from harmonised European material standards.
The tabulated value of T is based on the impact test temperature T for KV = 27 J.
R KV
Table B.2–6 — General requirements for prevention of brittle fracture with
reference thickness for Ni-alloyed steels with 1,5 % < Ni ≤≤ 5 %
≤≤
a
Ni-alloyed steel, 1,5 % < Ni ≤≤≤≤ 5 %
No. European Grade Material Max. reference Design Material Remarks
as per Standard No. thickness reference group to
Table e temperature CR ISO
B
E.2-1 T (°C) 15608:2000
AW PWHT R
plates and strips
b)
42 12Ni14 1.5637 35 80 – 100
10028-
9.2
4:2003
43 X12Ni5 1.5680 35 80 – 120
seamless tubes
b)
254 12Ni14 25 – 100
1.5637
b)
255 12Ni14 35 40 –  90
EN 10216-
9.2
4:2001
256 X12Ni5 25 – 120
1.5680
257 X12Ni5 35 40 – 110
forgings
b)
370 12Ni14 35
b)
371 12Ni14 1.5637 35 50 – 100
EN 10222-
b)
9.2
372 12Ni14 35 70
3:1998
373 X12Ni5 35
1.5680 – 120
374 X12Ni5 35 50
a)
Nickel content is nominal.
b)
If used at – 105 °C (e. g. ethylene application), then 27 J shall be guaranteed at this temperature.
NOTE Thickness limitation result from wall thickness limitation in European material standards.

Table B.2–7 — General requirements for prevention of brittle fracture
with reference thickness for Ni-alloyed steels with 9 % Ni

a
9 % - Ni alloys
No. European Grade Material Max. reference Design Material Remarks
as per Standard No. thickness reference group to
Table e temperature CR ISO
B
E.2-1 T (°C) 15608:2000
AW PWHT R
plates and strips
44 X8Ni9 1.5662
10028- b)
― – 196 9.3
48 X4:2003 7Ni9 1.5663
seamless tubes
258 EN 10216- X10Ni9
b)
1.5682 ― – 196 9.3
4:2001
forgings
375 EN 10222- X8Ni9 b)
1.5662 ― – 196 9.3
3:1998
a)
Nickel content is nominal.
b)
Materials can be used to maximum thickness permitted in harmonised European material standards.
B.2.2.4 Bolts and nuts
For other bolts and nuts than given in Table B.2-8 a specified impact energy of minimum 40 J is required at
T = RT for T = ≥ −10 °C.
KV M
If T is lower than −10 °C, specified impact energy of minimum 40 J is required at T ≤ T .
M KV M
Except bolting material made from austenitic stainless steels specified in Table B.2-9 and B.2-10, bolting
material with a design temperature below –160 °C shall be impact tested at –196 °C.
Table B.2–8 — General requirements for prevention of brittle fracture
with reference thickness for nuts and bolts for T ≥≥≥≥ -10 °C
M
European Standard Type of Thickness Impact test KV for Test temperature /
a)
material limitation value
T ≥≥ -10 °C
≥≥
M
EN 10269:1999 All steels According to According to According to
EN 10269:1999 EN 10269:1999, EN 10269:1999,
Table 4 Table 4
EN ISO 898-1:1999 5.6 M = < 39 + 20 °C / 40 J
M ≥ 16
8.8 M = < 39 + 20 °C / 52 J
M ≥ 16
EN 20898-2:1993 5 M = < 39 None ―
8 M = < 39 None ―
a)
Starting material shall comply with EN 10269:1999.
Table B.2–9 — General requirements for prevention of brittle fracture with reference
thickness for nuts and bolts, bolting material according to EN 10269:1999
Type of material Thickness Impact test T Remark
M
limitation
1.4307, 1.4301, According to According to – 196 °C Verification required
1.4303, 1.4404, EN 10269:1999, EN 10269:1999, for diameter or
1.4401, 1.4948, Table 7 Table 4 thickness > 20mm
1.4919, 1.4941,
1.4980 a)
1.4429, 1.4910, According to According to – 273 °C Verification required
EN 10269:1999, EN 10269:1999, for diameter or
Table 7 Table 4 thickness > 20mm
1.5523, 1.1133 According to According to – 20 °C ―
1.6563 EN 10269:1999, EN 10269:1999,
Table 7 Table 7
1.7218 d ≤ 60 mm According to – 60 °C ―
EN 10269:1999,
60 < d ≤ 100 mm – 50 °C
Table 7
1.6582, 1.6580, According to According to – 40 °C ―
EN 10269:1999, EN 10269:1999,
1.7225
Table 7 Table 7
1.5680 d ≤ 45 mm According to – 120 °C ―
EN 10269:1999,
45 < d ≤ 75 mm – 110 °C
Table 7
1.5662 According to According to – 196 °C ―
EN 10269:1999, EN 10269:1999,
Table 7 Table 7 at – 196°C
a) When used at -273 °C, verification testing at -196 °C according to Table 7 of EN 10269:1999 is required.

Table B.2–10 — General requirements for prevention of brittle fractur
...