oSIST prEN 13445-12:2019

Unfired pressure vessels - Part 12: Additional requirements for pressure vessels of copper and copper alloys

Specifies requirements for unfired pressure vessels constructerd from copper and copper alloys

Unbefeuerte Druckbehälter - Teil 12: Zusätzliche Anforderungen für Druckbehälter aus Kupfer und Kupferlegierungen

Dieser Teil 12 der Normenreihe EN 13445 legt zusätzlich zu den allgemeinen Anforderungen an unbefeuerte Druckbehälter nach EN 13445-1:2014 bis EN 13445-5:2014 Anforderungen an aus Kupfer und Kupfer-legierungen (siehe 5.2) hergestellte unbefeuerte Druckbehälter und deren Bauteile fest.
ANMERKUNG 1 Gusswerkstoffe sind in der vorliegenden Fassung nicht enthalten. Angaben zu Gusswerkstoffen werden in einer Änderung der Normenreihe EN 13445 erfasst.
ANMERKUNG 2 Lötverbindungen sind derzeit nicht berücksichtigt.

Récipients sous pression non soumis à la flamme - Partie 12 : Exigences complémentaires pour les récipients sous pression en cuivre et alliages de cuivre

Outre les exigences générales relatives aux récipients sous pression non soumis à la flamme spécifiées dans l'EN 13445-1:2014 à l'EN 13445-5:2014, la présente Partie 12 de la série EN 13445 spécifie les exigences relatives aux récipients sous pression non soumis à la flamme et à leurs parties en cuivre et en alliages de cuivre (voir 5.2).
NOTE 1 La présente version ne traite pas des matériaux moulés. Les détails relatifs aux matériaux moulés feront l'objet d'un amendement ou d'une révision de la série EN 13445.
NOTE 2 Les raccordements à brasage tendre ne sont pas considérés dans le présent document.

Nekurjene tlačne posode - 12. del: Dodatne zahteve za tlačne posode iz bakra in bakrovih zlitin

General Information

• Status: Not Published
• Public Enquiry End Date: 03-Jun-2019
• ICS: 23.020.32 - Pressure vessels
• Technical Committee: TLP - Pressure vessels
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 22-Mar-2019
• Due Date: 09-Aug-2019
• Completion Date: 20-Jun-2019
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: prEN 13445-12 - Unfired pressure vessels - Part 12: Additional requirements for pressure vessels of copper and copper alloys

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 13445-12:2019
01-maj-2019
1HRJUHYDQHQHNXUMHQHWODþQHSRVRGHGHO'RGDWQH]DKWHYH]DWODþQHSRVRGH
L]EDNUDLQEDNURYLK]OLWLQ
Unfired pressure vessels - Part 12: Additional requirements for pressure vessels of
copper and copper alloys
Unbefeuerte Druckbehälter - Teil 12: Zusätzliche Anforderungen für Druckbehälter aus
Kupfer und Kupferlegierungen
Récipients sous pression non soumis à la flamme - Partie 12 : Exigences
complémentaires pour les récipients sous pression en cuivre et alliages de cuivre
Ta slovenski standard je istoveten z: prEN 13445-12
ICS:
23.020.32 7ODþQHSRVRGH Pressure vessels
oSIST prEN 13445-12:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13445-12:2019

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oSIST prEN 13445-12:2019


DRAFT
EUROPEAN STANDARD
prEN 13445-12
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2019
ICS 23.020.30
English Version

Unfired pressure vessels - Part 12: Additional
requirements for pressure vessels of copper and copper
alloys
Récipients sous pression non soumis à la flamme - Unbefeuerte Druckbehälter - Teil 12: Zusätzliche
Partie 12 : Exigences complémentaires pour les Anforderungen für Druckbehälter aus Kupfer und
récipients sous pression en cuivre et alliages de cuivre Kupferlegierungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 54.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13445-12:2019 E
worldwide for CEN national Members.

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Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions, symbols and units . 6
4 General requirements . 6
5 Materials . 6
5.1 General . 6
5.2 Technical delivery conditions . 6
5.2.1 General . 6
5.2.2 Materials in accordance with EN standards . 7
5.2.3 Particular Material Appraisals . 7
5.3 Material grouping system . 7
5.4 Material documentation and material marking . 8
5.5 Prevention of brittle fracture . 8
5.6 Lamellar tearing. 8
6 Design . 8
6.1 General . 8
6.2 Design values . 8
6.3 Fixed tubesheets not uniformly perforated . 9
6.4 Brazed lapped and T-joints . 10
6.5 Fatigue design . 10
7 Manufacture . 10
7.1 General . 10
7.2 Permanent joints . 10
7.2.1 General . 10
7.2.2 Permanent joint and operator qualification . 10
7.2.3 Permanent joint operations and traceability . 10
7.2.4 Qualification of welding procedures, welders and welding operators . 10
7.2.5 Qualification of brazing procedures and brazers . 10
7.2.6 Mechanical roller expansion . 11
7.3 Preheat . 11
7.4 Production test, reference criteria . 11
7.5 Extent of testing . 11
7.6 Performance of test and acceptance criteria . 11
7.7 Forming of pressure parts . 11
7.8 Sampling of formed products . 12
7.8.1 Cold formed products without heat treatment . 12
7.8.2 Hot formed or cold formed products with heat treatment . 12
7.9 Tests . 13
7.9.1 Base material . 13
7.9.2 Butt welds . 13
7.10 Post weld heat treatment (PWHT) . 13
7.11 Repairs . 13
8 Inspection and testing . 13
8.1 General . 13
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8.2 Non-destructive testing of permanent joints. 13
8.2.1 General . 13
8.2.2 Testing groups 1, 2 and 3 . 14
8.2.3 Demonstration of satisfactory experience for testing group 2 . 14
8.2.4 Testing group 4 . 14
8.2.5 Non-destructive testing of brazed joints . 14
8.3 Determination of extent of non-destructive testing . 15
8.4 Applicable non-destructive techniques . 15
8.4.1 NDT methods . 15
8.4.2 Acceptance criteria . 15
Annex A (normative) Material properties for copper and copper alloys . 16
A.1 General information on Annexes B to G . 16
A.2 Grouping system for copper and copper alloys from CEN ISO/TR 15608:2017 . 16
Annex B (normative) Summary of alloys included . 17
Annex C (normative) Mechanical properties at room temperature. 19
Annex D (normative) Mechanical properties at elevated temperatures . 23
Annex E (normative) Long-term elevated temperature strength data . 27
Annex F (normative) Permissible stress f . 38
Annex G (normative) Physical properties of copper alloys . 44
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU aimed to be covered . 46
Bibliography . 47

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European foreword
This document (prEN 13445-12:2019) has been prepared by Technical Committee CEN/TC 54 “Unfired
Pressure Vessels”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
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 2014/68/EU.
For relationship with EU Directive 2014/68/EU, see informative Annex ZA, which is an integral part of
this document.
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1 Scope
This Part 12 of EN 13445 series specifies requirements for unfired pressure vessels and their parts made
of copper and copper alloys (see 5.2) in addition to the general requirements for unfired pressure vessels
in EN 13445-1:2014 to EN 13445-5:2014.
NOTE 1 Cast materials are not included in this version. Details regarding cast materials will be subject to an
amendment to or a revision of EN 13445 series.
NOTE 2 Soldered connections are presently not considered.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 764-5:2014, Pressure equipment — Part 5: Inspection documentation of metallic materials and
compliance with the material specification
EN 1653, Copper and copper alloys — Plate, sheet and circles for boilers, pressure vessels and hot water
storage units
EN 10204:2004, Metallic products — Types of inspection documents
EN 13134:2000, Brazing — Procedure approval
EN 13445-1:2014, Unfired pressure vessels — Part 1: General
EN 13445-2:2014, Unfired pressure vessels — Part 2: Materials
EN 13445-3:2014, Unfired pressure vessels — Part 3: Design
EN 13445-4:2014, Unfired pressure vessels — Part 4: Fabrication
EN 13445-5:2014, Unfired pressure vessels — Part 5: Inspection and testing
EN 13445-8:2014, Unfired pressure vessels — Part 8: Additional requirements for pressure vessels of
aluminium and aluminium alloys
FprEN 14276-1:2018, Pressure equipment for refrigerating systems and heat pumps — Part 1: Vessels —
General requirements
EN ISO 3452 series, Non-destructive testing — Penetrant testing (ISO 3452 series)
EN ISO 9606-3, Approval testing of welders — Fusion welding — Part 3: Copper and copper alloys
(ISO 9606-3)
EN ISO 10042, Welding — Arc-welded joints in aluminium and its alloys — Quality levels for imperfections
(ISO 10042)
EN ISO 13585:2012, Brazing — Qualification test of brazers and brazing operators (ISO 13585:2012)
EN ISO 14732, Welding personnel — Qualification testing of welding operators and weld setters for
mechanized and automatic welding of metallic materials (ISO 14732)
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EN ISO 15614-6, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 6: Arc and gas welding of copper and its alloys (ISO 15614-6)
EN ISO 15614-8, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 8: Welding of tubes to tube-plate joints (ISO 15614-8)
EN ISO 17635, Non-destructive testing of welds — General rules for metallic materials (ISO 17635)
EN ISO 17636 series, Non-destructive testing of welds — Radiographic testing (ISO 17636 series)
EN ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints (ISO 17637)
CEN ISO/TR 15608:2013, Welding — Guidelines for a metallic materials grouping system
(ISO/TR 15608:2013)
3 Terms, definitions, symbols and units
For the purposes of this document, the terms and definitions given in EN 13445-1:2014,
EN 13445-2:2014, EN 13445-3:2014, EN 13445-4:2014, EN 13445-5:2014 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
copper alloys
alloys which contain mainly copper and are classified in alloy groups 31 to 38 according to
CEN ISO/TR 15608:2013
4 General requirements
The general requirements of EN 13445-1 shall apply.
5 Materials
5.1 General
The general requirements of EN 13445-2:2014 shall apply with the following additions/exclusions in 5.2
to 5.6.
The base materials listed in this European standard, additionally specified with the extra requirements
given in this European standard, are suitable for and may be employed in the manufacture of pressure
vessels conforming to prEN 13445-12.
NOTE Materials listed in this European standard can be used without European Approval of Materials (EAM) or
Particular Material Appraisal (PMA).
5.2 Technical delivery conditions
5.2.1 General
The material specification shall specify the composition limits for all constituents, heat treatment and the
appropriate mechanical properties for acceptance and other purposes.
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The product forms in their delivery conditions shall be kept free from internal stresses that may lead to
stress corrosion cracking.
When using copper-zinc alloys, for example, care shall be taken to ensure that they are adequately
resistant to the media in question and that no hazardous chemical reactions take place.
When annealed in an atmosphere containing hydrogen (or, for example, when welding or brazing using a
naked flame), product forms made of Cu-DHP shall not show any signs of hydrogen embrittlement.
The use of these materials with > 70 % by mass of copper is not permitted in the presence of acetylene.
5.2.2 Materials in accordance with EN standards
The materials given in Annex B, Table B.1 can be used within the temperature limits for sheets, plates,
seamless tubes, rods and forgings. The limits for the various product forms are given in Table B.1.
The data in Annexes C to E apply for the material conditions, mechanical properties and long-term
elevated temperature strength properties.
NOTE For CuZn38Sn1As, the 1 % creep strain limit values are estimations on the basis of some orientation
values.
The materials shall be supplied in accordance with the technical delivery conditions laid down in the
respective material standards listed in Annex B, Table B.1. The materials shall be tested as specified in
these material standards. Testing shall comprise at least chemical analysis and tensile testing (tensile
strength, yield strength, elongation after fracture).
5.2.3 Particular Material Appraisals
Products made of other copper alloys and wrought copper alloys may be used after they have undergone
a Particular Material Appraisal (PMA). Information shall be given on application limits, requirements, test
conditions, marking and further processing (forming, heat treatment, welding, soldering). The materials
shall meet the following requirements:
Only material having a minimum elongation after fracture A of not less than 10 % in its final fabricated
state shall be used for the construction of pressure vessels.
Alternatively, the elongation at fracture A for materials subject to heat treatment shall display the values
characterizing the materials, but for sheets, strips, plates and rods shall be at least 14 % regardless of the
direction of the test specimen. If a test is only possible in the longitudinal direction, the elongation at
fracture A shall be at least 16 %.
However, lower elongation values may also be applied provided that appropriate measures are taken to
compensate for these lower values and the specific requirements are verifiable.
NOTE Examples for compensation:
— application of higher safety factors in design or of lower material strength values;
— performance of burst tests to demonstrate ductile material behaviour.
5.3 Material grouping system
Annex A of EN 13445-2:2014 is not applicable to pressure vessels of copper and copper alloys and is
replaced by the Annexes A to G of this prEN 13445-12:2019.
The grouping system for copper and its alloys is shown in Table A.1.
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5.4 Material documentation and material marking
Materials for pressure bearing parts compliant with the requirements of this European Standard shall be
accompanied by inspection documentation in accordance with EN 10204:2004.
The type of inspection document shall be in accordance with EN 764-5:2014 and include a declaration of
compliance to the material specification.
All products shall be marked or labelled as specified in the respective material standard. Marking or
labelling shall contain at least:
— the manufacturer’s symbol,
— the material symbol or material number,
— the production batch number
NOTE A production batch is defined as the volume of the semi-finished product of an order made from a
material of identical delivery condition, identical dimensions and, where applicable, of the same melt that has
been made continuously in the same production sequence and with the same production equipment.
5.5 Prevention of brittle fracture
EN 13445-2:2014, Annex B, is not applicable.
The lowest temperatures specified in Table B.1 of this document apply to unwelded parts.
Filler materials for permanent joints shall be selected to be suitable for the design temperature.
5.6 Lamellar tearing
Failure by lamellar tearing is not normally applicable to copper and copper alloys.
6 Design
6.1 General
All the design methods included in EN 13445-3:2014 shall apply, with the following amendments, given
in 6.2 to 6.4.
Mechanical properties of copper and copper alloys are given in the Annexes B to G of this standard.
EN 13445-3:2014, Annex A and B, shall not be applied.
NOTE This could be subject to a future revision of or an amendment to this prEN 13445-12.
6.2 Design values
6.2.1 Tables F.1 to F.3 contain the permitted stress f.
The permitted stresses at room temperature apply up to 50 °C. For other temperatures, linear
interpolation shall be carried out between the values given.
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Table 6.2.1-1 — Nominal design stress for copper products except for seamless pipes from copper
groups 31 and 34
Copper designation Normal operating load cases Testing and exceptional load
cases
Copper group 31–32–33–34–35 min (0,2 % proof stress/1,5 and Rp/Ttest/1,05
(except Cu-DHP, R200 and 1 % creep strain limit/1,0)

R220)
Elongation < 25 %
Copper group 31–32–33–34–35 min (max (0,2 % proof Rp/Ttest/1,05
(except Cu-DHP, R200 and stress/1,5 or 1,0 % proof
R220) stress/1,5), 1 % creep strain
limit/1,0)
a
Elongation ≥ 25 %
Cu-DHP, R200 and R220 R /3,5 R /2,22
m/T m/Ttest
a
The 1,0 % proof stress may be used instead of the 0,2 % proof stress if the ratio of the 0,2 % proof stress to
the tensile strength is ≤ 0,5 and the elongation at fracture in the transverse direction is at least 25 %, or at least
27 % in the longitudinal direction.
Table 6.2.1-2 — Nominal design stress for seamless pipes from copper groups 31 and 34
Material Supplied temper Design temper Normal Testing and
operating load exceptional
cases load cases
R /3 R /2,22
Y040, Y080 R220 m/T m/T
Cu-DHP
R /3 R /2,22
R200, R220, R250, R290, R360 R200 m/T m/T
R /1,3 R /1,05
CuNi10Fe1Mn R290, R310, R480 R290 p1,0/T p1,0/T
R /1,3 R /1,05
CuNi30Mn1Fe R370, R480 R370 p1,0/T p1,0/T
R /3 R /2,22
CuFe2P R370, R420 R300 m/T m/T
a R /3 R /2,22
R300 m/T m/T
CuFe2P R300
b R /1,3 R /1,05
R300 p1,0/T p1,0/T
a
Material according to EN 12735-1:2016.
b
Material with enhanced strength properties according to FprEN 14276-1:2018, Table F.3.
6.2.2 For welded, brazed or heat-treated components, the basis for the calculation shall be the
characteristic values of the material condition with the lowest characteristic values.
6.2.3 Table G.1 contains data on the modulus of elasticity. The scatter is ± 5 %.
6.3 Fixed tubesheets not uniformly perforated
This clause concerns flat tubesheets of shell and tube vessel types where the tubesheet is not uniformly
perforated in a circular area or where the unperforated diametral rows exceed four times the tube pitch.
To supplement EN 13445-3:2014, Clause 13 for tubesheets which are not uniformly perforated, the
design rules given in FprEN 14276-1:2018 may be applied.
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6.4 Brazed lapped and T-joints
The design of brazed lapped and T-joints shall be in accordance with FprEN 14276-1:2018, Annex B.
6.5 Fatigue design
Fatigue design for over 500 full equivalent pressure cycles is not covered by this Part 12 for copper and
copper alloy pressure vessels. For the determination of 500 full equivalent pressure cycles see
EN 13445-3:2014, 5.4.2
NOTE This will be subject to a future revision of or an amendment to this Part 12.
7 Manufacture
7.1 General
EN 13445-4:2014 shall apply, with the following amendments, given in 7.2 to 7.11.
NOTE Not all welding processes are suitable for all copper alloys.
Welding consumables may be selected from EN ISO 17777 and EN ISO 24373.
7.2 Permanent joints
7.2.1 General
Permanent joints in the context of this Clause 7.2 are composed of the following:
— welded and brazed joints which contribute to the pressure resistance of the vessel;
— expansion joints which are mainly used for the junction of tubes into the tubesheet.
7.2.2 Permanent joint and operator qualification
The permanent joint procedure and operator shall be qualified as defined below.
7.2.3 Permanent joint operations and traceability
No production of permanent joints shall be commenced until the permanent joint process and operators
have been qualified. The manufacturer shall have a procedure that allows the identification of the
operators who produce the joints.
7.2.4 Qualification of welding procedures, welders and welding operators
For welding procedures the requirements of EN 13445-4:2014, 7.3, shall apply with the following
modifications:
a) WPAR shall be in accordance with EN ISO 15614-6 and/or EN ISO 15614-8.
b) Annex B of EN 13445-2:2014 shall not apply.
For welders and welding operators the requirements in EN 13445-4:2014, 7.4, shall apply with the
following modification:
Replace reference to EN ISO 9606-1 with EN ISO 9606-3.
7.2.5 Qualification of brazing procedures and brazers
For hand brazing and manual mechanical brazing, brazing procedures and brazer approvals shall be
conducted in accordance with EN 13134:2000 and EN ISO 13585:2012.
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The rules for fully automated furnace brazing shall be in accordance with FprEN 14276-1:2018.
Old approvals valid under the Directive 2014/68/EU or 97/23/EC already before publication of this
standard retain their validity.
Note Brazing procedures qualified according to the rules described in FprEN 14276-1 are acceptable to be
used under EN 13445 series.
7.2.6 Mechanical roller expansion
Mechanical roller expansion procedures and expansion operator approvals shall be conducted in
accordance with FprEN 14276-1:2018, Annex K.
7.3 Preheat
Preheating may be required when welding some alloys above a certain thickness due to the high heat
conductivity of the material. As the heat conductivity varies significantly with the composition, any
preheat shall be specified.
Heating to 75 °C may be applied to remove condensation.
7.4 Production test, reference criteria
The requirements in EN 13445-4:2014, 8.2, are applicable with the following
...