SIST EN 13480-8:2007
(Main)Metallic industrial piping - Part 8: Additional requirements for aluminium and aluminium alloy piping
Metallic industrial piping - Part 8: Additional requirements for aluminium and aluminium alloy piping
This Part of this European Standard specifies requirements for industrial piping systems made of aluminium and aluminium alloys in addition to the general requirements for industrial piping according to the series of standards EN 13480 and CEN/TR 13480-7.
Metallische industrielle Rohrleitungen - Teil 8: Zusatzanforderungen an Rohrleitungen aus Aluminium und Aluminumlegierungen
Tuyauteries industrielles métalliques - Partie 8: Exigences complémentaires relatives aux tuyauteries en aluminium et alliages d'aluminium
Kovinski industrijski cevovodi - 8. del: Dodatne zahteve za cevovode iz aluminija in aluminijevih zlitin
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kovinski industrijski cevovodi - 8. del: Dodatne zahteve za cevovode iz aluminija in aluminijevih zlitinMetallische industrielle Rohrleitungen - Teil 8: Zusatzanforderungen an Rohrleitungen aus Aluminium und AluminumlegierungenTuyauteries industrielles métalliques - Partie 8: Exigences complémentaires relatives aux tuyauteries en aluminium et alliages d'aluminiumMetallic industrial piping - Part 8: Additional requirements for aluminium and aluminium alloy piping77.150.10Aluminijski izdelkiAluminium products77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific useICS:Ta slovenski standard je istoveten z:EN 13480-8:2007SIST EN 13480-8:2007en,fr,de01-september-2007SIST EN 13480-8:2007SLOVENSKI
STANDARD
SIST EN 13480-8:2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13480-8March 2007ICS 23.040.01 English VersionMetallic industrial piping - Part 8: Additional requirements foraluminium and aluminium alloy pipingTuyauteries industrielles métalliques - Partie 8: Exigencescomplémentaires relatives aux tuyauteries en aluminium etalliages d'aluminiumMetallische industrielle Rohrleitungen - Teil 8:Zusatzanforderungen an Rohrleitungen aus Aluminium undAluminumlegierungenThis European Standard was approved by CEN on 29 December 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 CEN Management Centre 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 CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13480-8:2007: ESIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 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.7 5.1 General.7 5.2 Material grouping system.7 5.3 Elongation after fracture.8 5.4 Chemical composition.8 5.5 Lamellar tearing.8 5.6 Design temperature and properties.8 5.7 Prevention of brittle fracture.9 5.8 Specific requirements for fasteners made of aluminium and aluminium alloys.9 5.9 Lined piping.9 5.10 Clad products.9 5.11 Technical delivery conditions for welding consumables.9 6 Design.9 6.1 General.9 6.2 Time-independent nominal design stress.9 6.3 Straight pipes.10 6.4 Pipe bends and elbows.10 6.5 Mitre bends.10 6.6 Socket welds.12 6.7 Designing with transition joints.13 7 Fabrication and installation.13 7.1 General.13 7.2 Material grouping.13 7.3 Tolerances.13 7.4 Cutting and bevelling.14 7.5 Bending and other forming.14 7.6 Welding.17 8 Inspection and testing.19 8.1 General.19 8.2 Formed pressure retaining parts.19 8.3 Welding.21 8.4 Visual and non-destructive testing of welds.21 8.5 VT and NDT Methods.22 8.6 Production test plates for welded pipes.23 9 Final assessment and documentation.24 9.1 General.24 9.2 Pneumatic pressure test.24 9.3 Documentation for components.25 Annex A (informative)
Dimensional tolerances.27 Annex B (normative)
Transition joints.29 B.1 General.29 B.2 Materials.29 B.3 Design.29 B.4 Permanent joining process.29 SIST EN 13480-8:2007
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3 B.5 Testing.30 B.6 Marking.30 B.7 Documentation.31 B.8 Protection against overheating.31 Annex ZA (informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC.33 Bibliography.35
Figures Figure 6.5-1 — Mitre bend.12 Figure 7.6.3-1 — Socket welds.18 Figure A.1 — Dimensional details of spools.28 Tables Table 5.2-1 — Grouping system based on CEN ISO/TR 15608:2005 and allowable materials of construction based on EN 12392:2000 using the EN AW numbers according to EN 573-3.7 Table 6.2-1 — Design stresses for aluminium and aluminium alloy material.10 Table 6.2-2 — Allowable design strength values for 6 000 series aluminium alloys in the welded condition (see 5.6).10 Table 6.5.1 — Special symbols for subclause 6.5.12 Table 7.3-1 — Tolerances for welded pipes.14 Table 7.5-3 Heat treatment after hot forming.16 Table 8.2-1 — Destructive testing of formed and heat treated parts.20 Table 8.4-1 — Extent of testing for circumferential, branch, socket and seal welds.21 Table 8.4-2 — Extent of VT and NDT for longitudinal welds and
spiral welded tubes / pipes.22 Table 8.5-1 — Techniques, methods, acceptance criteria.23 Table 8.6-1 — Production test plates for welded pipes according to 8.6 a).24 Table 8.6-2 — Required tests and acceptance criteria for production test plates.24 Table 9.2-1 — Extent of NDT in case of pneumatic pressure test according to 9.2b).25 Table A.1 — Tolerances.27 Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC.33
SIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 4 Foreword This document (EN 13480-8:2007) has been prepared by Technical Committee CEN/TC 267 “Industrial piping and pipelines”, the secretariat of which is held by AFNOR. 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 September 2007, and conflicting national standards shall be withdrawn at the latest by September 2007. 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/EC. For relationship with EU Directive 97/23/EC, 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, 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. SIST EN 13480-8:2007
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5 1 Scope This Part of this European Standard specifies requirements for industrial piping systems made of aluminium and aluminium alloys in addition to the general requirements for industrial piping according to the series of standards EN 13480 and CEN/TR 13480-7. 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 485-3, Aluminium and aluminium alloys — Sheet, strip and plate — Part 3: Tolerances on dimensions and form for hot-rolled products EN 485-4, Aluminium and aluminium alloys - Sheet, strip and plate - Part 4: Tolerances on shape and dimensions for cold-rolled products EN 571-1:1997, Non-destructive testing — Penetrant testing – Part 1: General principles EN 573-3:2003, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 3: Chemical composition EN 583 (all parts), Non-destructive testing - Ultrasonic examination EN 895:1995, Destructive tests on welds in metallic materials — Transverse tensile test EN 910:1996, Destructive tests on welds in metallic materials — Bend tests EN 970:1997, Non-destructive examination of fusion welds — Visual examination EN 1289:1998, Non-destructive examination of welds - Penetrant testing of welds - Acceptance levels EN 1321:1996, Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds
EN 1435:1997, Non-destructive examination of welds - Radiographic examination of welded joints EN 1712:1997, Non-destructive examination of welds - Ultrasonic examination of welded joints - Acceptance levels EN 1714:1997, Non-destructive examination of welds - Ultrasonic examination of welded joints EN 1779, Non-destructive testing - Leak testing - Criteria for method and technique selection EN 10002 (all parts), Metallic materials - Tensile testing
EN 10045-1, Metallic materials - Charpy impact test - Part 1: Test method EN 10204, Metallic products - Types of inspection documents SIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 6 EN 10246 (all parts), Non-destructive testing of steel tubes EN 12392:2000, Aluminium and aluminium alloys — Wrought products — Special requirements for products intended for the production of pressure equipment EN 13445-4:2002, Unfired pressure vessels — Part 4: Fabrication EN 13445-8, Unfired pressure vessels — Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys EN 13480-1:2002, Metallic industrial piping — Part 1: General EN 13480-2:2002, Metallic industrial piping — Part 2: Materials EN 13480-3:2002, Metallic industrial piping — Part 3: Design and calculation EN 13480-4:2002, Metallic industrial piping — Part 4: Fabrication and installation EN 13480-5:2002, Metallic industrial piping — Part 5: Inspection and testing CEN/TR 13480-7, Metallic industrial piping — Part 7: Guidance on the use of conformity assessment procedures EN ISO 3834-2:2005, Quality requirements for fusion welding of metallic materials - Part 2: Comprehensive quality requirements (ISO 3834-2:2005) EN ISO 3834-3:2005, Quality requirements for fusion welding of metallic materials - Part 3: Standard quality requirements (ISO 3834-3:2005) EN ISO 4063:2000, Welding and allied processes — Nomenclature of processes and reference numbers (ISO 4063:1998) EN ISO 7438, Metallic materials - Bend test (ISO 7438:2005) 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) CEN ISO/TR 15608:2005, Welding - Guidelines for a metallic materials grouping system (ISO/TR 15608:2005) EN ISO 15614-2:2005, 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) 3 Terms, definitions, symbols and units For the purposes of this document, the terms, definitions, symbols and units of EN 13480:2002 Parts 1 to 5 apply. 4 General requirements The general requirements of EN 13480-1 shall apply. SIST EN 13480-8:2007
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7 5 Materials 5.1 General The requirements of EN 13480-2 shall apply with the following additions/exclusions: 5.2 Material grouping system Annex A of EN 13480-2:2002 is not applicable for aluminium and aluminium alloys. The allowable materials for industrial piping of aluminium and aluminium alloys shall be according to Table 5.2–1. Any product form available in EN 12392:2000 for a material in this table at an acceptable temper is acceptable for construction to this European Standard. Other materials not defined here may be used by agreement by the parties concerned (see 4.3 of EN 13480-2:2002) if they meet the requirements of 5.2 and 5.3 of this standard and a Particular Material Appraisal is produced (see EN 764-4). Table 5.2-1 — Grouping system based on CEN ISO/TR 15608:2005 and allowable materials of construction based on EN 12392:2000 using the EN AW numbers according to EN 573-3 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 T4a
T4b, T6c
a for seamless pipes and profiles only b for seamless pipes and flanges only c for flanges only
SIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 8 5.3 Elongation after fracture Aluminium and aluminium alloys used for parts of industrial piping that are subjected to cold forming shall have a specified minimum elongation after fracture measured on a gauge length ooSL65,5= that is ≥ 14 % in the longitudinal or transverse direction as defined by the material specification.
Aluminium and aluminium alloys used for parts of industrial piping 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= that is ≥ 10 % in the longitudinal or transverse direction as defined by the material specification.
5.4 Chemical composition The chemical composition shall be in accordance with the material specification. All materials shall have a maximum lead content of 150 µg/g. NOTE 5.1.3 of EN 12392:2000 recommends a maximum hydrogen level of 0,2 ml per 100 g aluminium, measured in the liquid metal during casting for parts to be welded. 5.5 Lamellar tearing Specific requirements to avoid lamellar tearing for industrial piping of aluminium and aluminium alloys are not applicable. NOTE Specific requirements apply to steel (see EN 1011-2) whereas in EN 1011-4 no requirement is given because lamellar tearing is not a recognized phenomenon.
5.6 Design temperature and properties NOTE See also 4.2.2 of EN 13480-2:2002.
The 2nd paragraph of 4.2.2.1 of EN 13480-2:2002 is not applicable for aluminium and aluminium alloys.
The maximum design temperature shall not exceed that defined in Table 1 of EN 12392:2000 as the maximum working temperature. For material of group 22.4 the maximum design temperature is 75 °C (200 °C for non-corrosive service). The mechanical properties used for design shall be taken from the tabulated values in EN 12392 at room temperature for Rm/20 / Re/20 and at the highest design temperature for Re/t.
For welded parts and heat treated parts after forming only the values equivalent to the O temper shall be used for design when 6 000 series flanges, etc. are welded. These values are not quoted in EN 12392 and so the tabulated values for f shown in Table 6.2-2 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 stress (or 1 % proof stress for material group 21-1 000 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. SIST EN 13480-8:2007
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9 For material of group 22.4: For short periods, higher temperatures are permitted (e.g. when defrosting refrigerating plant) up to 150 °C are permissible provided that the pressure is reduced to half the working pressure for a period up to 8 h and to atmospheric pressure for a period up to 24 h.
5.7 Prevention of brittle fracture Annex B of EN 13480-2:2002 is not applicable. All materials of Table 5.2-1 are suitable for any minimum metal temperature without impact testing. NOTE See also EN 1252-1 and 8.4 of EN 12392:2000. 5.8 Specific requirements for fasteners made of aluminium and aluminium alloys Threads of bolts and studs shall be rolled. Regarding prevention of brittle fracture for materials of fasteners 5.6 of this standard applies. NOTE 1 Other manufacturing techniques may be agreed by the parties involved. In this case, special considerations regarding the application and testing requirements may be necessary. Such requirements are not addressed by this standard. NOTE 2 Materials other than aluminium and aluminium alloys may be used for bolting for piping constructions according to this European Standard. The designer should give special consideration to these different bolting materials. 5.9 Lined piping Specific requirements for lined piping are not applicable for aluminium and aluminium alloys. 5.10 Clad products Specific requirements for clad products are not applicable for aluminium and aluminium alloys. 5.11 Technical delivery conditions for welding consumables The requirements of 4.3.5 of EN 13480-2:2002 shall apply. 6 Design 6.1 General The requirements of EN 13480-3 shall apply with the following additions/exclusions. 6.2 Time-independent nominal design stress The design stresses for aluminium and aluminium alloys materials shall be in accordance with the Table 6.2-1. SIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 10 Table 6.2-1 — Design stresses for aluminium and aluminium alloy material Group according to Table 5.2-1 Design stresses at design condition Design stresses at test condition21 f = [Rp1,0,t / 1.5] ftest = [Rp1,0,20 / 1.05] 22 f = min ([Rp0,2,t / 1.5] or [Rm,20 / 2.4]) ftest = [Rp0,2, 20 / 1.05] 23 f = min ([Rp0,2,t / 1.5] or [Rm,20 / 3]) ftest = [Rp0,2, 20 / 1.05]
Table 6.2-2 — Allowable design strength values for 6 000 series aluminium alloys in the welded condition (see 5.6) Value of f for design temperature (°C) not exceeding
Material designation to EN 12392 50 75 100 125 a 150 175 a EN AW 6060 40 40 40 38 - - EN AW 6061 55 55 55 54 51 43 a For maximum design temperature see 5.6. Values for 125 °C (EN AW 6060) and 175 °C (EN AW 6061) shall be used for interpolation only. NOTE Data are derived from EN 13445-8.
6.3 Straight pipes In general, straight pipes shall be designed in accordance with 6.1 of EN 13480-3:2002. For D0/Di > 1,2 Equation 6.3-1 may be used. In this case pipes shall be seamless or tested in accordance with 8.4.3 and 8.6 of this European Standard for z = 1,0 and the maximum allowable pressure pa shall be determined as follows: 1,51xlnxxa=i0t,2,0p32DDRp (6.3-1) For material group 21 Rp1,0,t shall be used instead of Rp0,2,t. 6.4 Pipe bends and elbows The standard method for calculation of bends and elbows for aluminium and aluminium alloys shall be the method described in B.4.1.3 of EN 13480-3:2002, Annex B. NOTE 1 This clause should not be understood as to prohibit the other methods given in EN 13480-3, but to reflect the actual situation at the bend manufacturers. NOTE 2 Also see 6.2.3 and Annex B, Equation B4.1-11 of EN 13480-3:2002. 6.5 Mitre bends 6.3 of EN 13480-3:2002 may be used for the design of mitre bends for aluminium and aluminium alloys.
Alternatively the method described in Equations 6.5-1 to 6.5-4 may also be used for multiple mitre bends for aluminium and aluminium alloys according to Figure 6.5-1 with a maximum angle , of 22,5°. The pressure limit given in EN 13480-3:2002, 6.3.1 is not applicable for this method. SIST EN 13480-8:2007
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11 NOTE 1 Current experiences are available up to pressures of 63 bar for time independent design stresses, however this does not prohibit the calculation of mitre bends to the given equation for use of higher pressures, but shows the reference pressure for which mitre bends made of aluminium and aluminium alloys and designed to the rules are in safe operation. NOTE 2 Source: FDBR Guideline, Design of power piping, July 1995 The following symbols apply for the alternative method in addition to those mentioned in Clause 3. SIST EN 13480-8:2007
EN 13480-8:2007 (E) Issue 1 (2007-03) 12 Table 6.5.1 — Special symbols for subclause 6.5 Symbol Description Unit σv equivalent stress intensity N/mm2 (MPa) paa Maximum allowable pressure N/mm2 (MPa) div design inside diameter
mm a See footnote a in Table 3.2-1 of EN 13480-3:2002.
fzedBpaiviv≤+⋅⋅⋅⋅=502,σ (6.5-1) shall be met with regard to internal pressure loading, where with the smaller value of
()Θtan,iviveededr⋅+⋅++=8021 (6.5-2) Θtan⋅=22br (6.5-3) the value Bi is found as follows
()edrdrB+⋅−⋅−=ivivi,,50250 (6.5-4)
Figure 6.5-1 — Mitre bend 6.6 Socket welds Socket welds may only be used for pipes DN 50 and below. SIST EN 13480-8:2007
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13 6.7 Designing with transition joints 6.7.1 Design considerations The use of transition joints shall be considered during design analysis. Transition joints should be treated as elements within the piping an
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