SIST EN 13445-8:2007
(Main)Unfired pressure vessels - Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys
Unfired pressure vessels - Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys
This Part 8 of this European Standard specifies requirements for unfired pressure vessels and their parts made of aluminium and aluminium alloys in addition to the general requirements for unfired pressure ves-sels under EN 13445:2002 Parts 1 to 5. This European Standard specifies unfired pressure vessels for loads up to 500 full cycles.
NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this European Standard.
Unbefeuerte Druckbehälter - Teil 8: Zusätzliche Anforderungen an Druckbehälter aus Aluminium und Aluminiumlegierungen
Dieser Teil 8 der Europäischen Norm legt zusätzlich zu den allgemeinen Anforderungen an unbefeuerte
Druckbehälter nach EN 13445:2002, Teile 1 bis 5, Anforderungen an aus Aluminium und Aluminiumlegie-rungen
hergestellte unbefeuerte Druckbehälter und deren Bauteile fest. Diese Europäische Norm gilt für unbe-feuerte
Druckbehälter für Druckbelastungen bis zu 500 vollen Lastzyklen.
ANMERKUNG Gusswerkstoffe sind in der vorliegenden Fassung nicht enthalten. Angaben zu Gusswerkstoffen werden
in einer Ergänzung bzw. Überarbeitung dieser Europäischer Norm aufgenommen.
Récipients sous pression non soumis a la flamme - Partie 8 : Exigences complémentaires pour les récipients sous pression en aluminium et alliages d'aluminium
La présente partie 8 de cette norme européenne spécifie les exigences relatives aux récipients sous pression non
soumis a la flamme et a leurs composants en aluminium et alliages d’aluminium, en complément des exigences
générales énoncées dans les parties 1 a 5 de l’EN 13445 :2002. La présente norme européenne concerne les
récipients sous pression non soumis a la flamme pouvant aller jusqu’a 500 cycles complets de chargement.
NOTE Les matériaux moulés ne sont pas inclus pour l’instant. Des détails relatifs aux matériaux moulés feront l’objet d’un
amendement ou a une révision de la présente norme européenne.
Neogrevane tlačne posode – 8. del: Dodatne zahteve za tlačne posode iz aluminija in aluminijevih zlitin
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Unfired pressure vessels - Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloysRécipients sous pression non soumis a la flamme - Partie 8 : Exigences complémentaires pour les récipients sous pression en aluminium et alliages d'aluminiumUnbefeuerte Druckbehälter - Teil 8: Zusätzliche Anforderungen an Druckbehälter aus Aluminium und AluminiumlegierungenTa slovenski standard je istoveten z:EN 13445-8:2006SIST EN 13445-8:2007en23.020.30MHNOHQNHPressure vessels, gas cylindersICS:SLOVENSKI
STANDARDSIST EN 13445-8:200701-marec-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13445-8October 2006ICS 23.020.30 English VersionUnfired pressure vessels - Part 8: Additional requirements forpressure vessels of aluminium and aluminium alloysRécipients sous pression non soumis à la flamme - Partie 8: Exigences complémentaires pour les récipients souspression en aluminium et alliages d'aluminiumUnbefeuerte Druckbehälter - Teil 8: ZusätzlicheAnforderungen an Druckbehälter aus Aluminium undAluminiumlegierungenThis European Standard was approved by CEN on 14 July 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13445-8:2006: E
EN 13445-8:2006 (E) Issue 1 (2006-10) 2 Contents Page 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 Elongation after fracture.6 5.3 Prevention of brittle fracture.7 5.4 Lamellar tearing.7 5.5 Chemical composition.7 5.6 Material grouping system.7 6 Design.8 6.1 General.8 6.2 Design temperature and properties.8 6.3 Time-independent nominal design stress.9 6.4 Thick walled, small bore piping for shells.9 6.5 Fatigue design.10 6.6 Lapped joints, joggle joints, permanent backing strips.10 6.6.1 General.10 6.6.2 Lapped joints.10 6.6.3 Joggle joints.10 6.6.4 Joints with permanent backing strips.11 7 Manufacture.11 7.1 General.11 7.2 Materials.11 7.3 Welding procedure specification (WPS).11 7.4 Qualification of welding procedure specifications (WPQR).11 7.5 Qualification of welders and welding operators.11 7.6 Joint preparation.12 7.7 Preheat.12 7.8 Production test, reference criteria.12 7.9 Extent of testing.13 7.10 Performance of test and acceptance criteria.13 7.11 Forming procedures.13 7.12 Heat treatment after forming.14 7.13 Sampling of formed products.15 7.14 Tests.16 7.14.1 Base material.16 7.14.2 Butt welds.16 7.15 Post weld heat treatment (PWHT).16 8 Inspection and testing.17 8.1 General.17 8.2 Non-destructive testing of welded joints.17 8.2.1 General.17 8.2.2 Demonstration of satisfactory experience for testing group 2.18 8.2.3 Symbols.19
EN 13445-8:2006 (E) Issue 1 (2006-10) 3 8.3 Determination of extent of non destructive testing.19 8.4 Applicable non destructive testing techniques.22 8.4.1 NDT methods.22 8.4.2 Acceptance criteria for radiographic testing (RT).23 8.4.3 Acceptance criteria for visual and surface penetrant testing.23 8.4.4 Acceptance criteria for penetrant testing (PT).24 8.5 Selection of non-destructive testing methods for internal imperfections.24 8.6 Standard hydrostatic test.25 8.7 Pneumatic testing.25 9 Inspection and testing of serially produced pressure vessels — Model approval.25 9.1 General.25 9.2 Inspection and testing of pressure vessels subject to cyclic loads.25 Annex ZA (informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC.26 Bibliography.27
EN 13445-8:2006 (E) Issue 1 (2006-10) 4 Foreword This document (EN 13445-8:2006) has been prepared by Technical Committee CEN/TC 54 “Unfired pressure vessels”, the secretariat of which is held by BSI. 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 April 2007, and conflicting national standards shall be withdrawn at the latest by April 2007. 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(s). For relationship with EU Directive(s), 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, 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.
EN 13445-8:2006 (E) Issue 1 (2006-10) 5 1 Scope This Part 8 of this European Standard specifies requirements for unfired pressure vessels and their parts made of aluminium and aluminium alloys in addition to the general requirements for unfired pressure vessels under EN 13445:2002 Parts 1 to 5. This European Standard specifies unfired pressure vessels for loads up to 500 full cycles. NOTE
Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this European Standard. 2 Normative references The following referenced documents are indispensable for the application 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 571-1, Non-destructive testing — Penetrant testing — Part 1: General principles EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 3: Chemical composition EN 583-4, Non-destructive testing — Ultrasonic examination — Part 4: Examination for discontinuities perpendicular to the surface EN 970, Non-destructive examination of fusion welds — Visual examination EN 1289:1998, Non-destructive examination of welds — Penetrant testing of welds — Acceptance levels EN 1435:1997, Non-destructive examination of welds — Radiographic examination of welded joints EN 1712, Non-destructive examination of welds — Ultrasonic examination of welded joints — Acceptance levels
EN 1714, Non-destructive examination of welds — Ultrasonic examination of welded joints EN 12062:1997, Non-destructive examination of welds — General rules for metallic materials EN 12392:2000, Aluminium and aluminium alloys — Wrought products — Special requirements for products intended for the production of pressure equipment EN 13445-1:2002, Unfired pressure vessels — Part 1: General EN 13445-2:2002, Unfired pressure vessels — Part 2: Materials EN 13445-3:2002, Unfired pressure vessels — Part 3: Design EN 13445-4:2002, Unfired pressure vessels — Part 4: Fabrication EN 13445-5:2002, Unfired pressure vessels — Part 5: Inspection and testing
EN 13445-8:2006 (E) Issue 1 (2006-10) 6
EN ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic materials — Part 1: Fusion welding (ISO 6520-1:1998) EN ISO 9606-2, Qualification test of welders — Fusion welding — Part 2: Aluminium and aluminium alloys (ISO 9606-2:2004) EN ISO 10042:2005, Welding — Arc-welded joints in aluminium and its alloys — Quality levels for imperfections (ISO 10042:2005) EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2005) CEN ISO/TR 15608, Welding — Guidelines for a metallic materials grouping system (ISO/TR 15608:2005) 3 Terms, definitions, symbols and units For the purposes of this document, the terms, definitions, symbols and units given in EN 13445:2002 Parts 1 to 5 apply. NOTE Further symbols are listed in 8.2.3. 4 General requirements The general requirements of EN 13445-1 shall apply. 5 Materials 5.1 General The requirements of EN 13445-2 shall apply with the following additions/exclusions. 5.2 Elongation after fracture NOTE Also see 4.1.4 of EN 13445-2:2002. Aluminium and aluminium alloys used for welded parts of pressure vessels that are subjected to cold forming (e.g. rolled shells and heads) shall have a specified minimum elongation after fracture measured on a gauge length ooSL65,5= (5.2-1) that is ≥ 14 % in the longitudinal or transverse direction as defined by the material specification. Aluminium and aluminium alloys used for parts of pressure vessels that are not subjected to cold forming (e.g. straight flanges and nozzles) shall have a specified minimum elongation after fracture measured on a gauge length ooSL65,5= (5.2-2) that is ≥ 10 % in the longitudinal or transverse direction as defined by the material specification.
EN 13445-8:2006 (E) Issue 1 (2006-10) 7 5.3 Prevention of brittle fracture NOTE 1 Also see 4.1.6 of EN 13445-2:2002. Annex B of EN 13445-2:2002 is not applicable. NOTE 2 The requirements of 4.3 of EN 1252-1:1998 should be used for determining the minimum design and temperature and the requirements to prevent brittle fracture. 5.4 Lamellar tearing NOTE Also see 4.2.1.2 of EN 13445-2:2002. Specific requirements of lamellar tearing for pressure vessels of aluminium and its alloys are not applicable. 5.5 Chemical composition The chemical composition shall be in accordance with their material specification, except that all materials shall have a maximum lead content of 150 µg/g. It is recommended that the material to be used for welded components be produced from rolling or extrusion ingots with hydrogen level no greater than 0,2 ml per 100 g aluminium, measured on liquid metal during casting. 5.6 Material grouping system Annex A of EN 13445-2:2002 is not applicable for pressure vessels of aluminium and its alloys. The allowable materials for the construction of aluminium alloy pressure vessels shall be according to
Table 5.6-1 below.
EN 13445-8:2006 (E) Issue 1 (2006-10) 8 Table 5.6-1 — Grouping system based on CEN ISO/TR 15608 and allowable materials of construction based on EN 12392 using the EN AW numbers according to EN 573-3 NOTE Any product form available in EN 12392 for a material in this table at an indicated temper is acceptable for construction to this European Standard, as long as the requirements of 5.2 and 5.5 are fulfilled. Other materials not defined here may be used by agreement by the parties concerned (see 4.1.4 of EN 13445-2:2002) if they meet the requirements of 5.2 and 5.5 and a particular material appraisal is produced (see EN 764-4). Designation Group Sub group Type of aluminium and
aluminium alloys EN AW number Chemical symbol Temper 21
Pure aluminium with ≤ 1 % impurities or alloy content EN AW — 1050A EN AW — 1070A EN AW — 1080A
EN AW-Al 99,5 EN AW-Al 99,7 EN AW-Al 99,8(A) O, H111, H112 O, H111, H112 O, H111, H112 Non heat treatable alloys 22.1 Aluminium-manganese alloys EN AW — 3003
EN AW — 3103 EN AW — 3105 EN AW-Al Mn1Cu EN AW-Al Mn1 EN AW-Al Mn0,5Mg0,5 O, H111, H112 O, H111, H112 O, H111
22.2 Aluminium-magnesium alloys with Mg ≤ 1,5 % EN AW — 5005 EN AW — 5005A EN AW — 5050 EN AW-Al Mg1(B) EN AW-Al Mg1(C) EN AW-Al Mg1,5(C) O, H111, H112 O, H111, H112 O, H111 22.3 Aluminium-magnesium alloys with 1,5 % < Mg ≤ 3,5 % EN AW — 5049 EN AW — 5052 EN AW — 5154A EN AW — 5251 EN AW — 5454 EN AW — 5754 EN AW-Al Mg2Mn0,8 EN AW-Al Mg2,5 EN AW-Al Mg3,5(A) EN AW-Al Mg2 EN AW-Al Mg3Mn(A) EN AW-Al Mg3 O, H111, H112 O, H111, H112 O, H111, H112 O, H111, H112 O, H111, H112 O, H111, H112 22 22.4 Aluminium-magnesium alloys with Mg > 3,5 % EN AW — 5083 EN AW — 5086 EN AW-Al Mg4,5Mn0,7 EN AW-Al Mg4 O, H111, H112 O, H111
Heat treatable alloys 23 23.1 Aluminium-magnesium-silicon alloys EN AW — 6060 EN AW — 6061 EN AW-Al MgSi EN AW-Al Mg1SiCu T4 a T4 b, T6 c a for profiles only b for seamless pipes and flanges only c for flanges only 6 Design 6.1 General The requirements of EN 13445-3 shall apply with the following additions/exclusions. 6.2 Design temperature and properties NOTE Also see 4.2.2 of EN 13445-2:2002. The 2nd paragraph of 4.2.2.1 of EN 13445-2:2002 is not applicable for aluminium and its alloys. The maximum design temperature shall not exceed that defined in Table 1 of EN 12392:2000 as the maximum working temperature. The mechanical properties used for design shall be taken from the tabulated values in EN 12392 at room temperature for Rm/20 and at the highest design temperature for Re/t.
EN 13445-8:2006 (E) Issue 1 (2006-10) 9 For welded parts and heat treated parts after forming only the values equivalent to the O temper shall be used for design when 6000 series flanges etc. are welded. These values are not quoted in EN 12392 and so the tabulated values for f shown in Table 6.3-2 shall be used for design. The weld area shall be based on the O temper but the flange strength away from the weld (2t) may be based on the actual
temper (T4 or T6). For aluminium and aluminium alloys values of 0,2 % proof strength (or 1 % proof strength for material
group 21-1000 series aluminium) for temperatures above 20 °C shall be established by linear interpolation between two adjacent values in EN 12392 except that for alloys 5083 and 5086 the respective value at 50 °C may be used for 65 °C. 6.3 Time-independent nominal design stress The design stress for aluminium and aluminium alloy materials shall be in accordance with the Table 6.3-1. Table 6.3-1 — Design Stresses for aluminium and aluminium alloy material Group according to Table 5.6-1 Design stresses at design condition Design stresses at test condition 21 f = [Rp1,0,t
/ 1,5] ftest = [Rp1,0,20
/ 1,05] 22 f = min ( [Rp0,2,t
/ 1,5]; [Rm,20 / 2,4] ) ftest = [Rp0,2, 20
/ 1,05] 23 f = min ( [Rp0,2,t
/ 1,5]; [Rm,20 / 3]
ftest = [Rp0,2, 20
/ 1,05]
Table 6.3-2 — Allowable Design Stress values for 6000 series Aluminium alloys in the welded condition (see 6.2) Value of f for design temperature (°C) not exceeding Material designation to EN 12392 50 75 100 125 150 175 200
EN AW 6060 40 40 40 38 36 22 14
EN AW 6061 55 55 55 54 51 43 32
6.4 Thick walled, small bore piping for shells Equation 6.4-1 and 6.4-2 may be used as an alternative to Annex B and C in EN 13445-3:2002 for thick-walled piping of aluminium and aluminium alloy materials, i.e. for piping with e/De > 0,16 and DN ≤ 50. The maximum allowable pressure shall be used for design. Limit Load Procedure pd < PS (6.4-1) This maximum allowable pressure can be determined as follows: /1,5ln32iOp0,2⋅⋅=DDRPS (6.4-2) NOTE The method proposed is the standard design method for vaporisers upstream a cryogenic pressure tank. These vaporisers are small bore piping (DN ≤ 50) with comparable thick wall thickness (e/De typically ranges from 0,23 to 0,33 or De/Di from 2,7 to 1,8).
EN 13445-8:2006 (E) Issue 1 (2006-10) 10 6.5 Fatigue design Fatigue design for over 500 cycles is not covered by this Part 8 for aluminium and aluminium alloy pressure vessels.
NOTE This will be subject to a future revision of or an amendment to this Part 8. 6.6 Lapped joints, joggle joints, permanent backing strips 6.6.1 General The requirements of 5.7.4 in EN 13445-3:2002 are not applicable for pressure vessels of aluminium and aluminium alloys, and 5.7.4.1, 5.7.4.2, and 5.7.4.3.1 shall be replaced with the following 6.6.2, 6.6.3, and 6.6.4, respectively. 6.6.2 Lapped joints Lapped joints with fillet welds shall be used only when all of the following conditions are fulfilled: a) only testing group 4 is permitted; b) the materials are limited to material groups 21, 22.1, 22.2, 22.3, 22.4; c) for circumferential joints of shell to head only; d) the nominal wall thickness of the thickest pressure part does not exceed 8 mm; e) the overlap shall be minimum 4e, where e represents the nominal thickness of the thickest pressure part; f) both sides of the lap are welded; g) the maximum vessel diameter does not exceed 1 600 mm; h) non-corrosive conditions only are permitted. 6.6.3 Joggle joints Joggle joints shall be used only when all of the following conditions are fulfilled: a) the materials are limited to material groups 21, 22.1, 22.2, 22.3, and 22.4 (except 5454); b) for circumferential joints of shell to head only; c) the nominal wall thickness of the thickest pressure part does not exceed 12 mm; d) the inside of the vessel is not subject to corrosion; e) the intersections between longitudinal and circumferential joints shall be radiographed and found to be free of unacceptable imperfections; f) the maximum vessel diameter does not exceed 1 600 mm.
EN 13445-8:2006 (E) Issue 1 (2006-10) 11 6.6.4 Joints with permanent backing strips Permanent backing strips shall not be used for longitudinal seams. Permanent backing strips are permitted for circumferential seams and for shell or head closure plates only under the following conditions: a) materials are limited to material groups 21, 22.1 to 22.4 and 23.1; b) non–destructive examination is carried out in accordance with the design/joint efficiency to the same quality and acceptance criteria as a single-sided butt weld; c) the inside of the vessel is not subject to corrosion; d) backing strip material shall be of the same aluminium sub group as the vessel unless the combination of other backing strip material has been proven by a WPQR according to EN ISO 15614-2. 7 Manufacture 7.1 General The requirements of EN 13445-4 shall apply with the following additions/exclusions. 7.2 Materials Aluminium and aluminium alloy materials and their grouping shall be in accordance with 5.6. 7.3 Welding procedure specification (WPS) NOTE Also see 7.2 of EN 13445-4:2002. Gas welding according to EN ISO 4063 is not permitted. 7.4 Qualification of welding procedure specifications (WPQR) The requirements in 7.3 of EN 13445-4:2002 shall apply with the following modifications: a) replace reference to EN 288-3 or EN ISO 15614-1 with EN ISO 15614-2, except for radiographic acceptance which shall be in accordance with Clause 8; b) furthermore, impact testing is not applicable for pressure vessels of aluminium and aluminium alloys. 7.5 Qualification of welders and welding operators The requirements in 7.4 of EN 13445-4:2002 shall apply with the following modification: Replace reference to EN 287-1 with EN ISO 9606-2.
EN 13445-8:2006 (E) Issue 1 (2006-10) 12 7.6 Joint preparation In addition to the requirements of 7.6 in EN 13445-4:2002 the following shall apply for pressure vessels of aluminium and its alloys: a) aluminium and its alloys shall be cut to size and shape preferably by machining or by thermal cutting process, e.g. plasma arc cutting, or by a combination of both. Additionally, hydro-mechanical methods of edge preparation are acceptable; b) for plates of ≤ 25 mm thickness cold shearing is permissible. Edges that are cut by thermal process or by cold shearing shall be dressed back by machining unless the manufacturer can demonstrate that the material and the weldability have not been adversely affected by the cutting process; c) the aluminium surface to be welded shall be thoroughly cleaned of aluminium oxide traces and greases by mechanical means or by pickling. Chloride-containing detergents are prohibited (also see Clause 4 of EN 13445-4:2002). 7.7 Preheat In addition to the requirements of 7.9 in EN 13445-4:2002 the following shall apply for pressure vessels of aluminium and its alloys: a) preheating of aluminium and aluminium alloys is not required for metallurgical reasons and is therefore not mandatory. Preheating may be applied by the manufacturer for practical reasons, e.g. a heating at about 50 °C may facilitate the elimination of traces of water; b) for aluminium alloys containing 3,0 % or more magnesium an extended preheating and interpass time at temperatures of 150 °C and above shall not be permitted as it may result in grain boundary precipitation of Al3-Mg2 and disintegration in weld areas. 7.8 Production test, reference criteria The requirements in 8.2 of EN 13445-4:2002 are applicable with the following modifications: a) the requirements for impact testing are not relevant to aluminium materials, and so all of subsection a) in 8.2 of EN 13445-4:2002 shall be deleted; b) under c) in 8.2 of EN 13445-4:2002 replace reference to material group 1.1 with aluminium
materials 21, 22.1, 22.3 (except EN AW 5454) and 22.4; c) under d) in 8.2 of EN 13445-4:2002 replace reference to material groups 1.1, 1.2 and 8.1 with
reference to all aluminium materials permitted by Clause 5 of this ; d) paragraph e) in 8.2 of EN 13445-4:2002 is not applicable.
EN 13445-8:2006 (E) Issue 1 (2006-10) 13
7.9 Extent of testing Table 8.3-1 of EN 13445-4:2002 is not applicable for pressure vessels of aluminium and its alloys. For aluminium materials the following Table 7.9-1 shall apply: Table 7.9-1 — Testing of production test plates Material group Nominal thickness en a (mm) Test specimens b ≤ 35 1 FB, 1 RB (or 2 SB for e > 12 mm),1 TT, 1 Ma 21, 22.1, 22.2, 22.3, 22.4, 23.1 > 35 2 SB, 1 TT, 1 Ma, 1 LTc a Thinner plate thickness. b For symbols see Table 8.3-2 of EN 13445-4:2002. c For information for LT see 8.4.3 of EN 13445-4:2002.
7.10 Performance of test and acceptance criteria The requirements in 8.4.2, 8.4.3, 8.4.5 and 8.4.6 of EN 13445-4:2002 shall apply subject to the
replacement of reference to EN 288-3 or EN ISO 15614-1 with EN ISO 15614-2. The requirements in 8.4.1, 8.4.9 and 8.4.10 of EN 13445-4:2002 shall apply, the requirements in 8.4.7 and 8.4.8 of EN 13445-4:2002 shall not apply. 7.11 Forming procedures 7.11.1
As to cold forming the requirements in 9.3.1 of EN 13445-4:2002 shall apply with the following modification: a) cold forming of material groups 21 and 22.1 to 22.4 sh
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