Transportable refillable welded aluminium cylinders for liquefied petroleum gas (LPG) - Design and construction

This European Standard specifies minimum requirements for certain aspects concerning material, design, construction and workmanship, procedure and test at manufacture of transportable refillable welded aluminium LIQUEFIED PETROLEUM GAS cylinders of water capacity from 0,5 l up to and including 150 l exposed to ambient temperatures, and having a single piece with welded cap design as shown in figure 3.

Ortsbewegliche, wieder befüllbare geschweißte Flaschen ausAluminium für Flüssiggas (LPG) - Gestaltung und Konstruktion

Diese Europäische Norm legt die Mindestanforderungen an Werkstoffe, Gestaltung, Konstruktion und fachgerechte Ausführungsweise, Herstellungsverfahren und Prüfung ortsbeweglicher, wiederbefüllbarer, geschweißter Flüssiggasflaschen (LPG) aus Aluminium mit einem Fassungsraum von 0,5 l bis einschließlich 150 l fest, wenn diese der Umgebungstemperatur ausgesetzt werden.

Bouteilles soudées transportables et rechargeables en aluminium pour gaz de pétrole liquéfié - Conception et construction

Cette Norme européenne spécifie les exigences minimales relatives aux matériaux, au calcul, a la construction, aux procédures d'exécution ainsi qu'aux essais et examens lors de la fabrication des bouteilles soudées transportables et rechargeables en aluminium pour gaz de pétrole liquéfié (GPL) d'une capacité en eau comprise entre 0,5 l et 150 l inclus, et exposées a la température ambiante.

Premične ponovno polnljive varjene aluminijeve jeklenke za utekočinjeni naftni plin (UNP) - Načrtovanje in izdelava

General Information

Status
Withdrawn
Publication Date
30-Nov-2003
Withdrawal Date
08-Aug-2012
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
08-Aug-2012
Due Date
31-Aug-2012
Completion Date
09-Aug-2012

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ortsbewegliche, wieder befüllbare geschweißte Flaschen ausAluminium für Flüssiggas (LPG) - Gestaltung und KonstruktionBouteilles soudées transportables et rechargeables en aluminium pour gaz de pétrole liquéfié - Conception et constructionTransportable refillable welded aluminium cylinders for liquefied petroleum gas (LPG) - Design and construction77.150.10Aluminijski izdelkiAluminium products23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 13110:2002SIST EN 13110:2003en01-december-2003SIST EN 13110:2003SLOVENSKI
STANDARD



SIST EN 13110:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13110November 2002ICS 23.020.30English versionTransportable refillable welded aluminium cylinders for liquefiedpetroleum gas (LPG) - Design and constructionBouteilles soudées transportables et rechargeables enaluminium pour gaz de pétrole liquéfiés - Conception etconstructionOrtsbewegliche, wieder befüllbare geschweißte FlaschenausAluminium für Flüssiggas (LPG) - Gestaltung undKonstruktionThis European Standard was approved by CEN on 9 September 2002.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13110:2002 ESIST EN 13110:2003



EN 13110:2002 (E)2ContentspageForeword.4Introduction.51Scope.52Normative references.53Terms, definitions and symbols.63.1Terms and definitions.63.2Symbols.64Materials.75Design.85.1General requirements.85.2Calculation of cylindrical wall thickness.85.3Design of ends concave to pressure.85.4Other shapes of ends.125.5Minimum wall thickness.135.6Design of openings.135.7Neck design.135.8Stability.135.9Valve protection.136Construction and workmanship.136.1Welding qualification.136.2Plates and pressed parts.146.3Welded joints.146.4Tolerances.146.4.1Out of roundness.146.4.2Wall thickness.146.4.3Straightness.146.4.4Verticality.146.5Non pressure bearing attachments.146.6Heat treatment.156.7Closure of openings.157Testing and examination.157.1General.157.2Destructive tests.157.2.1Mechanical tests.157.2.2Burst test under hydraulic pressure.207.2.3Fatigue test.207.2.4Drop test.217.3Non-destructive testing.217.3.1Visual examination of the surface of the weld.217.3.2Radiographic examination.217.3.3Pressure test.237.4Machine reproducibility test.238Acceptance procedure.238.1General.238.2Batch testing.238.2.1Batch.238.2.2Inspection lots.24SIST EN 13110:2003



EN 13110:2002 (E)38.2.3Rate of testing.248.3Failure to meet batch test requirements.259Technical requirements for type approval.269.1New cylinder design.269.2Type approval tests.2610Marking.2611Certificate.27Annex A (normative)
Manufacturers marking.28Annex B (normative)
Corrosion tests.29B.1Test for assessing susceptibility to intercrystalline corrosion.29B.1.1Specimens.29B.1.2Pre-treatment of the specimen before corrosive etching.29B.1.3Corrosive etching process.30B.1.4Preparation of specimens for examination.30B.1.5Micrographic examination of specimens.31B.1.6Interpretation of the micrographic examination.31B.2Tests for assessing susceptibility to stress corrosion.33B.2.1Specimens.33B.2.2Surface preparation before test.34B.2.3Method.34B.2.4Interpretation of the results.35B.2.5Metallographical examination (additional examination).35B.3Conclusion of corrosion tests.36B.4Test report.36Bibliography.37SIST EN 13110:2003



EN 13110:2002 (E)4ForewordThis document (EN 13110:2002) has been prepared by Technical Committee CEN/TC 286 "Liquefied petroleumgas equipment and accessories", the secretariat of which is held by NSAI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest byMay 2003.The standard has been submitted for reference into the RID and/or in the technical annexes of ADR.Therefore in this context the standards listed in the normative references and covering basic requirements of theRID/ADR not addressed within the present standard are normative only when the standard themselves are referredto in the RID and/or in the technical annexes of the ADR.Annexes A and B are normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SIST EN 13110:2003



EN 13110:2002 (E)5IntroductionThis European Standard calls for the use of substances and procedures that might be injurious to health ifadequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legalobligations relating to health and safety at any stage.It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted toappropriately qualified and experienced people.1 ScopeThis European Standard specifies minimum requirements for material, design, construction and workmanship,testing and examination during the manufacture of transportable refillable welded aluminium liquefied petroleumgas (LPG) cylinders having a water capacity from 0,5 l up to and including 150 l, exposed to ambient temperature.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 287-2, Approval testing of welders – Fusion welding – Part 2: Aluminium and aluminium alloys.EN 288-1, Specification and approval of welding procedures for metallic materials – Part 1: General rules for fusionwelding.EN 288-2, Specification and approval of welding procedures for metallic materials – Part 2: Welding procedurespecifications for arc welding.EN 288-4, Specification and approval of welding procedures for metallic materials – Part 4: Welding proceduretests for the arc welding of aluminium and its alloys.EN 629-1, Transportable gas cylinders – 25E taper thread for connection of valves to gas cylinders – Part 1:Specification.EN 719, Welding coordination – Tasks and responsibilities.EN 876, Destructive tests on welds in metallic materials – Longitudinal tensile test on weld metal in fusion weldedjoints.EN 895, Destructive tests on welds in metallic materials – Transversal tensile test.EN 910, Destructive tests on welds in metallic materials – Bend tests.EN 970, Non-destructive examination of fusion welds – Visual examination.EN 1321, Destructive tests on welds in metallic materials – Macroscopic and microscopic examination of welds.EN 1418, Welding personnel – Approval testing of welding operators for fusion welding and resistance weld settersfor fully mechanised and automatic welding of metallic materials.SIST EN 13110:2003



EN 13110:2002 (E)6EN 1435, Non-destructive examination of welds – Radiographic examination of welded joints.EN 10002-1, Metallic materials – Tensile testing – Part 1: Method of testing at ambient temperature.EN 10204, Metallic products – Types of inspection documents.EN 30042, Arc-welded joints in aluminium and its weldable alloys – Guidance on quality levels for imperfections(ISO 10042:1992).EN ISO 11114-1, Transportable gas cylinders – Compatibility of cylinder and valve materials with gas contents –Part 1: Metallic materials (ISO 11114-1:1997).EN ISO 11116-1, Gas cylinders – 17E taper thread for connection of valves to gas cylinders – Part 1: Specifications(ISO 11116-1:1999).3 Terms, definitions and symbols3.1 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1.1yield stress0,2 % proof stress Rp0,2 (non proportional elongation) for aluminium alloys, and the 1 % proof stress for unalloyedaluminium in the unhardened state3.1.2heat treatmentsolution heat treatment, quenching and artificial or natural ageing that ensures the strength values required3.2 SymbolsaCalculated minimum thickness of the cylindrical part, in mm.AActual elongation after fracture, determined by the tensile test specified in 7.2, in %.AminMinimum elongation after fracture, guaranteed by the manufacturer for the finished cylinder, in %.bCalculated minimum thickness of the end of the cylinder, in mm.CShape factor (see Table 2 and Figure 2 and Figure 3).dOutside diameter of the bend test former, in mm (see Figure 6).DOutside diameter of the cylinder as given in the design drawing, in mm (see Figure 1).hHeight of the cylindrical part of the end, in mm (see Figure 1).HOutside height of the domed part of the end, in mm (see Figure 1).LLength of the cylinder, in mm.nRatio of diameter of bend test former to the thickness of the test piece (see Table 4).SIST EN 13110:2003



EN 13110:2002 (E)7PbMaximum pressure attained during the burst test, in bar.PhMinimum permissible test pressure, in bar above atmospheric pressure.rInside knuckle radius of the end, in mm (see Figure 1).RInside dishing radius of the end, in mm (see Figure 1).ReMinimum value of yield stress, guaranteed by the manufacturer for the finished cylinder, in N/mm2.RgMinimum value of tensile strength, guaranteed by the manufacturer for the finished cylinder, in N/mm2.RmActual value of tensile strength, determined by the tensile test specified in 7.2, in N/mm2.Rp0,2 Actual value of yield stress, determined by the tensile test specified in 7.2, in N/mm2.vUtilisation factor for the permissible calculation tension (stress reduction factor).4 Materials4.1Except as permitted in 4.2, the alloys used shall be in accordance with Table 1:Table 1 — Cast analysisMaterial designationAlMgSi1AlMg1Si1AlMgSi0,5ElementChemical compositionSilicon %0,7 – 1,31,2 – 1,60,3 – 0,6Iron %0,5 max.0,5 max.0,1 – 0,3Copper %0,1 max.0,1 max.0,1 max.Manganese %0,4 – 1,00,8 – 1,00,1 max.Magnesium %0,6 – 1,21,0 – 1,40,35 – 0,6Chromium %0,25 max.0,1 max.0,05 max.Zinc %0,2 max.0,2 max.0,15 max.Titanium %0,1 max.0,2 max.0,1 max.Others %each element 0,05 max., total 0,15 max.AluminiumRemainderRemainderRemainderNOTEMaterials AlMgSi1 and AlMgSi0,5 are equivalent to alloys EN AW-6082 and EN AW-6060respectively in EN 573-3.The pressure bearing parts of the cylinder shall be AlMgSi1 or AlMg1Si1. For non pressure bearing partsAlMgSi0,5 may be used.The manufacturer shall specify the guaranteed minimum values for the yield stress, tensile strength and elongationin the finished cylinders. In all cases, the elongation after fracture shall not be less than 12 %.4.2Unalloyed aluminium, containing at least 99,5 % aluminium, or aluminium alloys other than those specified inTable 1 may also be used provided that:SIST EN 13110:2003



EN 13110:2002 (E)8a) all requirements of this European Standard are met;b) LPG/material compatibility is checked according to EN ISO 11114-1;c) the requirements for corrosion resistance according to annex B are satisfied;NOTEA more detailed description of the techniques for carrying out the corrosion tests can be found in EN 12862.d) the manufacturer demonstrates that the material used is suitable for the manufacture of cylinders, theexpected service life and the likely conditions of use.4.3The welding materials selected by the manufacturer shall be compatible with the base materials and shallproduce welds which meet the minimum strength values used in the design of the cylinder and guaranteed by themanufacturer in the finished cylinders.4.4The manufacturer shall keep certificates according to EN 10204 type 3.1 B covering ladle analysis andchemical properties for material used for pressure retaining parts of the cylinder.4.5The manufacturer shall maintain a system of identification for materials used in the manufacture so that allmaterials used in the manufacture of the cylinder can be traced to their origin.5 Design5.1 General requirements5.1.1Calculation of the wall thickness of the pressure bearing parts shall be related to the minimum guaranteedyield stress (Re) in the finished cylinder.5.1.2For calculation purposes the value of Re shall be limited to a maximum of 0,85 Rg.5.1.3The calculation of wall thickness shall be based on the test pressure Ph of 30 bar.5.1.4A fully dimensioned drawing, including material specifications, shall be produced.5.2 Calculation of cylindrical wall thicknessThe wall thickness of the cylindrical shell, including any cylindrical part of the ends, shall not be less than:heh3,120PvRDPa+÷øöçèæ=whereFor parts of the cylinder without longitudinal seam:v
= 1,0For parts of the cylinder with longitudinal seam:v
= 0,9In no case shall the actual thickness be less than that specified in 5.5.5.3 Design of ends concave to pressure5.3.1Except as permitted in 5.4 the shape of ends of cylinders shall meet the following limitations:¾ for torispherical ends: R £ D; r ³ 0,1 D; h ³ 4 b (see Figure 1)SIST EN 13110:2003



EN 13110:2002 (E)9()[]()()[]br22DbR2DbR)bR(H+-++-+-+=¾ for semi-ellipsoidal ends H ³ 0,192 D ; h ³ 4b (see Figure 1)5.3.2The wall thickness of the ends of cylinders shall not be less than:heh3,120PRCDPb+÷øöçèæ=The value of C shall be obtained from Table 2 or the graphs given in Figure 2 and Figure 3.Table 2 — Relationship between H/D and shape factor CH/DCH/DC0,251,0000,380,6120,260,9310,390,6040,270,8850,400,5960,280,8450,410,5880,290,8090,420,5810,300,7750,430,5760,310,7430,440,5720,320,7130,450,5700,330,6870,460,5680,340,6670,470,5660,350,6490,480,5650,360,6330,490,5640,370,6210,500,564NOTEIntermediate values can be obtained by linear interpolation.SIST EN 13110:2003



EN 13110:2002 (E)10Key1Torispherical end2Semi-ellipsoidal endFigure 1 — Illustration of cylinder ends concave to pressureSIST EN 13110:2003



EN 13110:2002 (E)110,2050,20,210,2150,220,2250,230,2350,240,2450,251,0001,1001,2001,3001,4001,5001C()H/D0,060,030,020,010,00750,005b/DFigure 2 — Values of shape factor C for H/D between 0,2 and 0,25SIST EN 13110:2003



EN 13110:2002 (E)12Figure 3 — Values of shape factor C for H/D between 0,25 and 0,55.4 Other shapes of endsShapes of ends other than those covered by 5.3 may be used provided that the adequacy of their design isdemonstrated by a fatigue test in accordance to 7.2.3 or by a stress analysis.SIST EN 13110:2003



EN 13110:2002 (E)135.5 Minimum wall thicknessThe minimum wall thickness of the cylindrical shell “a” and of the end “b” shall not be less than the value derivedfrom the following formula:amin = bmin = D/200 + 1,5 mmThe formula applies to cylindrical shells and ends, including any integral cylindrical part, irrespective of whetherthey are designed by calculation as specified in 5.2 and 5.3 or by testing as specified in 5.4.5.6 Design of openings5.6.1The location of all openings shall be restricted to one end of the cylinder.5.6.2Each opening in the cylinder shall be reinforced by a valve boss or other means, in such a way that it is ofadequate strength and does not result in harmful stress concentrations. This shall be confirmed by designcalculations or a fatigue test in accordance with 7.2.3.5.7 Neck designInternal neck threads shall be in accordance with EN 629-1 (25E) or EN ISO 11116-1 (17E).The external diameter and thickness of the valve boss or neck end of the cylinder shall be adequate for the torqueapplied in fitting the valve, including any additional turning for valve alignment. The manufacturer shall specify themaximum permitted torque and shall demonstrate by tests that the neck and thread can withstand the specifiedtorque without significant damage.NOTEThe torque required can vary according to the thread diameter and form, and type of sealant used. EN ISO 13341gives guidance on the torque for valve fitting.5.8 StabilityThe diameter of the surface of the foot ring, or other part of the cylinder, in contact with the ground shall not be lessthan 75 % of the nominal outside diameter, to ensure stability.5.9 Valve protection5.9.1Valves shall be protected from damage in order to avoid release of LPG.5.9.2When the requirements of 5.9.1 are not met, either:a) the manufacturer shall specify in the documentation that the cylinders shall either be conveyed in crates orcradles or shall be provided with some other valve protection during transportation,b) it can be demonstrated that the valve can withstand damage without leakage of LPG.NOTESee EN 13152 and EN 13153.6 Construction and workmanship6.1 Welding qualification6.1.1For all welding associated with the pressure envelope, including non-pressure bearing parts, weldingprocedures shall be approved according to EN 288-1, 288-2 and 288-4. Welding procedure approval tests shall becarried out in such a manner that the test welds are representative of those made in production.SIST EN 13110:2003



EN 13110:2002 (E)146.1.2A welding co-ordinator shall be nominated whose qualification is “European Welding Engineer” (EWE).Tasks and responsibilities shall be specified according to EN 719.Welders for manual welding shall have an approval in accordance with EN 287-2 and personnel for automaticwelding shall have an approval in accordance with EN 1418 for the specific type of work and procedures used inproduction.6.1.3Records of approval tests shall be retained by the manufacturer.6.2 Plates and pressed partsBefore assembly, the pressure bearing parts of the cylinders shall be visually examined for uniform quality andfreedom from defects, which may affect the cylinder integrity.6.3 Welded joints6.3.1The welding of pressure bearing joints shall be carried out by a fully mechanised or automatic process toprovide welds of consistent and reproducible quality.6.3.2Any joint between pressure bearing parts of the cylinder shall be butt welded. Joggle joints are notpermitted.6.3.3The fusion of the weld metal with the parent material shall result in full penetration, the surface shall besmooth and free from overlapping, undercutting or any abrupt irregularity. There shall be no cracking, notching orporosity in the weld surface or the wall surface adjacent to the weld. Welds shall meet category C quality level forimperfections, in accordance with EN 30042.6.4 Tolerances6.4.1 Out of roundnessThe difference between the maximum and the minimum outside diameter of the cylindrical shell, at any cross-section, shall not exceed 1,5 % of the diameter shown on the drawing.6.4.2 Wall thicknessThe difference between the maximum and minimum wall thickness of the cylindrical shell, at any cross-section,shall not exceed 10 % of the thickness shown on the drawing.6.4.3 StraightnessUnless otherwise shown on the drawing and proven by fatigue test in accordance with 7.2.3, the deviation of thecylindrical part of the shell from a straight line shall not exceed 0,3 % of the cylindrical length.6.4.4 VerticalityFor a cylinder standing on its base, the cylindrical shell and the axis of the top opening shall not deviate more than1,5° from the vertical.6.5 Non pressure bearing attachments6.5.1Non pressure bearing parts shall be attached to the cylinder by welding, it shall be verified that theseattachments are made of compatible materials (see clause 4).6.5.2Each attachment shall:¾ permit inspection of the welds;SIST EN 13110:2003



EN 13110:2002 (E)15¾ be clear of pressure bearing welds
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