EN 14870-1:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrija nafte in zemeljskega plina - Indukcijska cevna kolena, fitingi in prirobnice za naftovodne transportne sisteme - 1. del: Indukcijska cevna kolena (ISO 15590-1:2009, spremenjen)Erdöl- und Erdgasindustrie - Im Induktionsverfahren gefertigte Rohrbögen, Fittings und Flansche für Rohrleitungs-Transportsysteme - Teil 1: Im Induktionsverfahren gefertigte
RohrbögenIndustries du pétrole et du gaz naturel - Coudes d'induction, raccords et brides pour systèmes de transport par conduites - Partie 1: Coudes d'induction (ISO 15590-1:2009 modifiée)Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 1: Induction bends (ISO 15590-1:2009 modified)83.140.30Cevi, fitingi in ventili iz polimernih materialovPlastics pipes, fittings and valves75.200Petroleum products and natural gas handling equipmentICS:Ta slovenski standard je istoveten z:EN 14870-1:2011SIST EN 14870-1:2011en01-oktober-2011SIST EN 14870-1:2011SLOVENSKI
STANDARDSIST EN 14870-1:20051DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14870-1
June 2011 ICS 23.040.40; 23.040.60; 75.200 Supersedes EN 14870-1:2004English Version
Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 1: Induction bends (ISO 15590-1:2009 modified)
Industries du pétrole et du gaz naturel - Coudes d'induction, raccords et brides pour systèmes de transport par conduites - Partie 1: Coudes d'induction (ISO 15590-1:2009 modifiée)
Erdöl- und Erdgasindustrie - Im Induktionsverfahren gefertigte Rohrbögen, Fittings und Flansche für Rohrleitungs-Transportsysteme - Teil 1: Im Induktionsverfahren gefertigte
Rohrbögen This European Standard was approved by CEN on 10 June 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14870-1:2011: ESIST EN 14870-1:2011

Manufacturing procedure specification . 33A.1 Introduction . 33A.2 Manufacturing procedure specification . 33Annex B (normative)
PSL 2S bends ordered for sour service . 35B.1 Introduction . 35B.2 Additional information that shall be supplied by the purchaser . 35SIST EN 14870-1:2011

Where the expression “International Standard” is used, it is understood as “European Standard”. 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, Croatia, 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 ISO 6507 (all parts), Metallic materials — Vickers hardness test EN ISO 6508 (all parts), Metallic materials — Rockwell hardness test EN ISO 6892(all parts), Metallic materials — Tensile testing EN ISO 7438, Metallic materials — Bend test (ISO 7438:2005) EN ISO 7539-2, Corrosion of metals and alloys — Stress corrosion testing — Part 2: Preparation and use of bent-beam specimens(ISO 7539-2:1989) ISO 783, Metallic materials — Tensile testing at elevated temperature ISO 3183:2007, Petroleum and natural gas industries — Steel pipe for pipeline transportation systems ISO 8501-1:2007, Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings(ISO 8501-1:2007) ISO 9303:1989, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Full peripheral ultrasonic testing for the detection of longitudinal imperfections ISO 9305, Seamless steel tubes for pressure purposes — Full peripheral ultrasonic testing for the detection of transverse imperfections ISO 9712, Non-destructive testing — Qualification and certification of personnel ISO 9764:1989, Electric resistance and induction welded steel tubes for pressure purposes — Ultrasonic testing of the weld seam for the detection of longitudinal imperfections ISO 10124, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Ultrasonic testing for the detection of laminar imperfections ISO 10474, Steel and steel products — Inspection documents ISO 11496, Seamless and welded steel tubes for pressure purposes — Ultrasonic testing of tube ends for the detection of laminar imperfections ISO 12094, Welded steel tubes for pressure purposes — Ultrasonic testing for the detection of laminar imperfections in strips/plates used in the manufacture of welded tubes ISO 12095, Seamless and welded steel tubes for pressure purposes — Liquid penetrant testing ISO 80000-1:2009, Quantities and units -- Part 1: General SIST EN 14870-1:2011

1) American Society for Nondestructive Testing, 1711 Arlingate Lane, Columbus, OH 43228-0518, USA. 2) American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA. 3) NACE International, 1440 South Creek Drive, P.O. Box 201009, Houston, TX 77084-4906, USA. SIST EN 14870-1:2011

PT liquid-penetrant testing RT radiographic testing SAWL submerged arc longitudinal welding process for pipe during manufacture SAWH submerged arc helical welding process for pipe during manufacture SSC sulfide stress-cracking SWC step-wise cracking UT ultrasonic testing WPS welding procedure specification 6 Designation Designation of induction bends shall take the form “IB xxx-PSL 1” or “IB xxx-PSL 2” or “IB xxx-PSL 2S”, where  “xxx” is the specified minimum yield strength, expressed in megapascals (MPa);  the letters “PSL 1” or “PSL 2” identify the technical delivery conditions class for induction bends in non-sour service;  the letters “PSL 2S” identify PSL 2 bends for use in sour service conditions. 7 Pressure rating and design The hoop stress in the induction bend due to internal fluid pressure shall not exceed the hoop stress permitted in ISO 13623, or other applicable design code, for straight pipe in the location of the bend. Compliance with this requirement shall be demonstrated either by calculations or by satisfying both of the following requirements. a) The wall thickness of the bend extrados shall be at least tmin. b) The wall thickness at the bend intrados shall be at least as given in Equation (1): ()rrttrr−=×−bpiminbp22 (1) For pipelines not designed in accordance with ISO 13623, the wall thickness of the bend extrados may be less than tmin. The requirements in this clause address the design of a bend against internal pressure. It is necessary that the purchaser or designer also consider other loads, both static and dynamic, and pipeline test conditions to demonstrate compliance with the strength requirements of ISO 13623. SIST EN 14870-1:2011

9.6 Strip/plate end welds Induction bends shall not contain coil-strip end welds or plate end welds. 9.7 Jointers and girth welds Induction bends shall not contain girth welds. SIST EN 14870-1:2011

Impact N T In accordance with ISO 3183
Through-thickness hardness O T In accordance with 10.4.4.2
Surface hardness T and P T and P In accordance with 10.4.5.2
Metallography T T In accordance with 10.4.6.2
HIC N TbIn accordance with B.4.3
SSC N TbIn accordance with B.4.4
DWT N O By agreement
CTOD N O By agreement
Guided bend (weld seam) M M In accordance with ISO 3183
Flattening M M In accordance with ISO 3183 NDT Visual inspection T and P T and P In accordance with ISO 3183 and 10.5.2
Weld seam (UT or RT) M T and P In accordance with ISO 3183
Bend ends (laminations) P P In accordance with 10.5.4
Bend body (MT or PT) T and P T and P In accordance with 10.5.5
Bend body (UT) transverse defects N T and P In accordance with 10.5.6
Bend body (UT) laminations N M In accordance with 10.5.6
Residual magnetism ends P P In accordance with 10.5.7
Repairs P P In accordance with ISO 3183 and 10.5.8 "to be continued"SIST EN 14870-1:2011

D bend body P P In accordance with 10.6
D at ends P P In accordance with 10.6
Out-of-roundness ends P P In accordance with 10.6
Out-of-roundness body P P In accordance with 10.6
Linear dimensions P P In accordance with 10.6
Angle P P In accordance with 10.6
Radius O O In accordance with 10.6
End squareness P P In accordance with 10.6
Out of plane P P In accordance with 10.6
End preparation By agreement By agreement Gauging
By agreement By agreement Hydrostatic test
By agreement By agreement a M – Testing of the induction bend shall not be required if acceptable test results are available for the mother pipe. If acceptable test results for the mother pipe are not available then the test shall be performed on either the mother pipe or the bend.
N – Not required.
O – Performance of the test or inspection on a production induction bend may be required by agreement.
P – Required for each production bend.
T – Required for each test bend. b Required only for PSL 2S bends. Table 3 — Location of test pieces and type of test for destructive testing of test bends Location Test Tangent base metala Tensile Impact Through-thickness hardness Tangent welda Tensile transverse Impact Flattening Through-thickness hardness Metallography Guided bend Transition zones base metal extrados, start and stop Tensilec Impactc Through-thickness hardnessc Metallographyc Transition zones welds, start and stop Tensile transversec Impactc "to be continued"SIST EN 14870-1:2011
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