SIST EN 10217-7:2005
(Main)Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
This Part of EN 10217 specifies the technical delivery conditions in two test categories for welded tubes of circular cross-section made of austenitic and austenitic-ferritic stainless steel which are applied for pressure and corrosion resisting purposes at room temperature, at low temperatures or at elevated temperatures.
Geschweißte Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 7: Rohre aus nichtrostenden Stählen
Dieser Teil der EN 10217 enthält die technischen Lieferbedingungen für geschweißte Rohre mit kreisförmigem Querschnitt aus austenitischen und aus austenitisch-ferritischen Stählen, die für Druckbeanspruchungen und für korrosive Medien bei Raumtemperatur, bei tiefen Temperaturen und bei erhöhten Temperaturen bestimmt sind, und legt dafür zwei Prüfkategorien fest.
Tubes soudés en acier pour service sous pression - Conditions techniques de livraison - Partie 7: Tubes en aciers inoxydables
La présente partie de l'EN 10217 spécifie les conditions techniques de livraison, dans deux catégories d'essai, pour les tubes soudés a section circulaire, fabriqués en aciers inoxydables austénitiques et austénoferritiques, utilisés dans les applications nécessitant une résistance a la pression et a la corrosion a température ambiante, a basse température ou a température élevée.
Varjene jeklene cevi za tlačne posode - Tehnični dobavni pogoji - 7. del: Cevi iz nerjavnega jekla
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Geschweißte Stahlrohre für Druckbeanspruchungen - Technische Lieferbedingungen - Teil 7: Rohre aus nichtrostenden StählenTubes soudés en acier pour service sous pression - Conditions techniques de livraison - Partie 7: Tubes en aciers inoxydablesWelded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 10217-7:2005SIST EN 10217-7:2005en01-maj-2005SIST EN 10217-7:2005SLOVENSKI
STANDARD
SIST EN 10217-7:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10217-7February 2005ICS 23.040.10; 77.140.75English versionWelded steel tubes for pressure purposes - Technical deliveryconditions - Part 7: Stainless steel tubesTubes soudés en acier pour service sous pression -Conditions techniques de livraison - Partie 7: Tubes enaciers inoxydablesGeschweißte Stahlrohre für DruckbeanspruchungenTechnische Lieferbedingungen - Teil 7: Rohre ausnichtrostenden StählenThis European Standard was approved by CEN on 14 October 2004.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, 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© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10217-7:2005: ESIST EN 10217-7:2005
EN 10217-7:2005 (E) 2 2 Contents Foreword.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.6 4 Symbols.6 5 Classification and designation.7 5.1 Classification.7 5.2 Designation.7 6 Information to be supplied by the purchaser.7 6.1 Mandatory information.7 6.2 Options.7 6.3 Examples of an order.8 6.3.1 Example 1.8 6.3.2 Example 2.8 7 Manufacturing process.9 7.1 Steelmaking process.9 7.2 Tube manufacture and delivery conditions.9 8 Requirements.11 8.1 General.11 8.2 Chemical composition.12 8.2.1 Cast analysis.12 8.2.2 Product analysis.12 8.3 Mechanical properties.17 8.3.1 At room temperature.17 8.3.2 At elevated temperature.17 8.3.3 At low temperature.17 8.4 Corrosion resistance.22 8.5 Appearance and internal soundness.22 8.5.1 Appearance.22 8.5.2 Internal soundness.23 8.6 Straightness.23 8.7 Preparation of ends.23 8.8 Dimensions, masses and tolerances.24 8.8.1 Outside diameter and wall thickness.24 8.8.2 Mass.24 8.8.3 Lengths.24 8.8.4 Tolerances.24 9 Inspection.27 9.1 Type of inspection.27 9.2 Inspection documents.27 9.2.1 Types of inspection documents.27 9.2.2 Content of inspection documents.27 9.3 Summary of inspection and testing.28 10 Sampling.28 10.1 Test unit.28 10.2 Preparation of samples and test pieces.30 10.2.1 Selection and preparation of samples for product analysis.30 10.2.2 Location, orientation and preparation of samples and test pieces for mechanical tests.30 11 Test methods.31 11.1 Chemical analysis.31 11.2 Tensile test on the base material.31 11.2.1 At room temperature.31 11.2.2 At elevated temperature.32 11.3 Transverse tensile test on the weld.32 11.4 Technological tests.32 11.4.1 General.32 11.4.2 Flattening test.32 11.4.3 Ring tensile test.33 SIST EN 10217-7:2005
EN 10217-7:2005 (E) 3 11.4.4 Drift expanding test.33 11.4.5 Ring expanding test.33 11.5 Weld bend test.33 11.6 Impact test.33 11.7 Intergranular corrosion test.34 11.8 Leak tightness test.34 11.8.1 Hydrostatic test.34 11.8.2 Eddy current test.35 11.9 Dimensional inspection.35 11.10 Visual examination.35 11.11 Non-destructive testing.35 11.12 Material identification.35 11.13 Retests, sorting and reprocessing.36 12 Marking.36 12.1 Marking to be applied.36 12.2 Additional marking.36 13 Handling and packaging.36 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.37
SIST EN 10217-7:2005
EN 10217-7:2005 (E) 4 4 Foreword This document (EN 10217-7:2005) has been prepared by Technical Committee ECISS /TC 29, "Steel tubes and fittings for steel tubes", the secretariat of which is held by UNI. 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 August 2005, and conflicting national standards shall be withdrawn at the latest by August 2005. 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. Other parts of EN 10217 are: Part 1: Non-alloy steel tubes with specified room temperature properties; Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties; Part 3: Alloy fine grain steel tubes; Part 4: Electric welded non-alloy steel tubes with specified low temperature properties; Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties; Part 6: Submerged arc welded non-alloy steel tubes with specified low temperature properties Another European Standard series covering tubes for pressure purposes is: — EN 10216: Seamless steel tubes for pressure purposes. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 10217-7:2005
EN 10217-7:2005 (E) 5 1 Scope This Part of EN 10217 specifies the technical delivery conditions in two test categories for welded tubes of circular cross-section made of austenitic and austenitic-ferritic stainless steel which are applied for pressure and corrosion resisting purposes at room temperature, at low temperatures or at elevated temperatures. 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 473, Non destructive testing - Qualification and certification of NDT personnel - General principles. EN 910, Destructive tests on weld in metallic materials - Bend tests. EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature. EN 10002-5, Metallic materials - Tensile testing - Part 5: Method of test at elevated temperature. EN 10020:2000, Definition and classification of grades of steel. EN 10021:1993, General technical delivery requirements for steel and iron products. EN 10027-1, Designation systems for steels - Part 1: Steel names, principal symbols. EN 10027-2, Designation systems for steels - Part 2: Numerical system. EN 10028-7, Flat products made of steels for pressure purposes – Part 7: Stainless steels. EN 10045-1, Metallic materials - Charpy impact test - Part 1: Test method. EN 10052:1993, Vocabulary of heat treatment terms for ferrous products. EN 10088-1, Stainless steels - Part 1: List of stainless steels. EN 10088-2, Stainless steels – Part 2: Technical delivery conditions for sheet/plate and strip for general purposes. EN 10168, Steel products - Inspection documents - List of information and description. EN 10204, Metallic products - Types of inspection documents. EN 10233, Metallic materials - Tube - Flattening test. EN 10234, Metallic materials - Tube - Drift expanding test. EN 10236, Metallic materials - Tube - Ring expanding test. EN 10237, Metallic materials - Tube - Ring tensile test. EN 10246-2, Non destructive testing of steel tubes - Part 2: Automatic eddy current testing of seamless and welded (except submerged arc-welded) austenitic and austenitic-ferritic steel tubes for verification of hydraulic leak-tightness. EN 10246-3, Non-destructive testing of steel tubes - Part 3: Automatic eddy current testing of seamless and welded (except submerged arc welded) steel tubes for the detection of imperfections. EN 10246-7, Non destructive testing of steel tubes - Part 7: Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of longitudinal imperfections. SIST EN 10217-7:2005
EN 10217-7:2005 (E) 6 6 EN 10246-9, Non-destructive testing of steel tubes - Part 9: Automatic ultrasonic testing of the weld seam of submerged arc-welded steel tubes for the detection of longitudinal and/or transverse imperfections. EN 10246-10, Non-destructive testing of steel tubes - Part 10: Radiographic testing of weld seam of automatic fusion arc-welded steel tubes for the detection imperfections. EN 10246-16, Non destructive testing of steel tubes - Part 16: Automatic ultrasonic testing of the area adjacent to the weld seam of welded steel tubes for the detection of laminar imperfections. EN 10246-17, Non destructive testing of steel tubes – Part 17: Ultrasonic testing of tube ends of seamless and welded steel tubes for the detection of laminar imperfections. EN 10256, Non destructive testing of steel tubes – Qualification and competence of level 1 and level 2 non-destructive testing personnel. EN 10266:2003, Steel tubes, fittings and structural hollow sections – Symbols and definitions of terms for use in product standards. EN ISO 377 Steel and steel products - Location of samples and test pieces for mechanical testing. (ISO 377:1997). EN ISO 1127, Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length (ISO 1127:1992). EN ISO 2566-2, Steel - Conversion of elongation values - Part 2: Austenitic steels (ISO 2566-2:1984). EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels - Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in media containing sulfuric acid (ISO 3651-2:1998). EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of the chemical composition (ISO 14284:1996). CR 10260, Designation systems for steel: Additional symbols. CR 10261, ECISS Information Circular 11 - Iron and steel - Review of available methods of chemical analysis. 3 Terms and definitions For the purpose of this Part of EN 10217, the terms and definitions given in EN 10020:2000, EN 10021:1993, EN 10052:1993 and EN 10266:2003 and the following apply. 3.1 test category classification that indicates the extent and level of inspection and testing 3.2 employer organization for which a person works on a regular basis NOTE The employer may be either the tube manufacturer or supplier or a third party organization providing Non- Destructive Testing (NDT) services. 4 Symbols For the purpose of this Part of EN 10217, the symbols given in EN 10266:2003 and the following apply. — C1 and C2 category conformity indicators (see Clauses 7.2.1 and 7.2.3.); — TC test category. NOTE See also Table 2 for symbols of the delivery condition. SIST EN 10217-7:2005
EN 10217-7:2005 (E) 7 5 Classification and designation 5.1 Classification According to the classification system in EN 10020, the steel grades are classified as: austenitic steels (corrosion resisting); austenitic-ferritic steels. For more details see EN 10088-1. 5.2 Designation For the tubes covered by this Part of EN 10217 the steel designation consists of: the number of this Part of EN 10217 (EN 10217-7); plus either: the steel name according to EN 10027-1 and CR 10260; or:
the steel number allocated according to EN 10027-2. 6 Information to be supplied by the purchaser 6.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) the quantity (mass or total length or number); b) the term "tube"; c) the dimensions (outside diameter D and wall thickness T) (see 8.8.1); d) the designation of the steel grade according to this Part of EN 10217 (see 5.2); e) the test category (see 9.3). 6.2 Options A number of options are specified in this Part of EN 10217 and these are listed below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tube shall be supplied in accordance with the basic specification (see 6.1). a) Information about steelmaking process (see 7.1); b) Tube manufacturing process and/or route (see 7.2.2); c) The inside weld is remelted (see Table 1); d) The inside weld is worked by rolling or remelting (see Table 1); e) Delivery condition (see 7.2.4); f) Product analysis (see 8.2.2); SIST EN 10217-7:2005
EN 10217-7:2005 (E) 8 8 g) Additional mechanical tests on samples that have undergone a different or additional heat treatment (see 8.3.1); h) Verification of impact energy at room temperature (see 8.3.1); i) Agreed mechanical properties at room temperature for austenitic steel tubes with wall thicknesses greater than 60 mm (see Table 6, footnote a); j) Agreed proof strength at elevated temperatures for austenitic steel tubes with wall thicknesses greater than 60 mm (see Table 8, footnote a); k) Verification of proof strength Rp0,2 or Rp1,0 at elevated temperatures (see 8.3.2); l) Verification of impact energy at low temperature (see 8.3.3); m) Intergranular corrosion test (see 8.4); n) Repair welding (see 8.5.1.5); o) Selection of leak-tightness test method (see 8.5.2.2); p) Non-destructive testing of tube ends for detection of laminar imperfections (see 8.5.2.3); q) Non-destructive testing of strip and plate edges for detection of laminar imperfections (see 8.5.2.3); r) Special ends preparation (see 8.7); s) Exact lengths (see 8.8.3); t) Tolerance class D 4 for D ≤ 168,3 mm (see Table 10); u) The type of inspection document other than the standard document (see 9.2.1); v) Transverse tensile test on the weld (see 10.2.2.2); w) Test pressure for hydrostatic leak-tightness test (see 11.8.1); x) Wall thickness measurement away from the ends (see 11.9); y) Selection of non- destructive testing method for the inspection of the weld seam (see Table 16); z) Image quality class R1 of EN 10246-10 for the radiographic inspection of the weld seam (see Table 16); aa) Additional marking (see 12.2); bb) Special protection (see 13). 6.3 Examples of an order 6.3.1 Example 1 2000 m of welded tube W1 (see Table 2) with an outside diameter of 168,3 mm, a wall thickness of 4,5 mm, tolerance classes D 3 and T 3, in accordance with this Part of EN 10217, made of steel grade X2CrNi19-11, test category 1, with a 3.1. B inspection certificate according to EN 10204: 2000 m - Tube – 168,3 X 4,5 - EN 10217-7- X2CrNi19-11 – TC 1 – Option 5: W1 6.3.2 Example 2 300 m of cold finished welded tube WCA (see Table 2) with an outside diameter of 42,4 mm, a wall thickness of 2,6 mm, tolerance classes D 3 and T 3, in accordance with this Part of EN 10217, made of steel grade 1.4301, test category 2, with intergranular corrosion test (EN ISO 3651-2, method A), verification of proof strength at 300 °C, SIST EN 10217-7:2005
EN 10217-7:2005 (E) 9 non-destructive testing of strip edges for detection of laminar imperfections, with a 3.2 inspection certificate according to EN 10204 issued by the manufacturer: 300 m - Tube – 42,4 X 2,6 - EN 10217-7 - 1.4301 – TC 2 – Option 5: WCA - Option 11: 300 ° C - Option 13: A – Option 17 - Option 21: 3.2 (to be issued by the manufacturer) 7 Manufacturing process 7.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer, but see Option 1. Option 1: The purchaser shall be informed about the steelmaking process used. The process shall be reported in the inspection document. 7.2 Tube manufacture and delivery conditions 7.2.1 All NDT activities shall be carried out by qualified and competent level 1,2 and/or 3 personnel authorised to operate by the employer. The qualification shall be according to EN 10256 or, at least, an equivalent to it. It is recommended that the level 3 personnel be certified according to EN 473 or, at least, an equivalent to it. The operating authorisation issued by the employer shall be according to a written procedure. NDT operations shall be authorised by a level 3 NDT individual approved by employer. NOTE The definition of level 1,2 and 3 can be found in appropriate standards, e.g. EN 473 and EN 10256. For pressure equipment in categories III and IV (of Directive 97/23/EC) the personnel shall be approved by a recognised third-party organisation. Tubes not conforming to this requirement shall be marked “C 2”, unless a requirement to mark "C 1" (see 7.2.3) applies. 7.2.2 The tubes shall be manufactured from hot or cold rolled plate, sheet or strip in accordance with EN 10028-7, longitudinally arc or laser welded by fusion across the abutting edges, with or without the addition of filler metal in accordance with one of the routes as specified in Table 1. Unless Option 2 is specified, the manufacturing process and/or route are at the discretion of the manufacturer. Option 2: The tube manufacturing process and/or route is specified by the purchaser. The finished tubes shall not include welds used for joining together lengths of the hot or cold rolled strip prior to forming. Option 3: (see Table 1). Option 4: (see Table 1). 7.2.3 Welding shall be carried out by suitably qualified personnel in accordance with suitable operating procedures. For pressure equipment in categories II, III, and IV, (of Directive 97/23/EC) the operating procedures and the personnel shall be approved by a competent third-party. Tubes not conforming to this requirement shall be marked “C 1”. SIST EN 10217-7:2005
EN 10217-7:2005 (E) 10 10 Table 1 - Tube manufacturing process, route, starting material, forming operation and weld condition 1 2 3 4 5 Route Manufacturing process a Starting material Forming operation Weld condition b 01 As welded c 02 Welded, outside ground c 03 Hot or cold rolled strip Continuous forming from strip Welded, bead worked 04 Automatic arc welding
Hot or cold rolled plate or sheet Single forming from plate or sheet As welded d, e 05 Laser welding Hot or cold rolled strip Continuous forming from strip Welded, outside groundc
or bead worked a Tubes with outside diameter not exceeding 168,3 mm may additionally be brought to the required tube dimensions by cold workingb (see type of condition WCA and WCR in Table 2). b The terms "as-welded", "welded, outside ground", "bead worked" and "cold working" apply to the condition of the tube before heat treatment if required in accordance with Table 2. c On request, the inside weld can be remelted. Option 3: The inside weld is remelted. d On request, the inside weld can be worked by rolling or remelting. Option 4: The inside weld is worked by rolling or remelting. e The weld seam can be welded using one or more separate layers.
SIST EN 1021
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.