1、 Reference number ISO 15590-2:2003(E) ISO 2003INTERNATIONAL STANDARD ISO 15590-2 First edition 2003-12-15 Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems Part 2: Fittings Industries du ptrole et du gaz naturel Coudes dinduction, raccords
2、 et brides pour systmes de transport par conduites Partie 2: Raccords ISO 15590-2:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are li
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5、g to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without
6、 permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2003 All rights
7、 reservedISO 15590-2:2003(E) ISO 2003 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references. 1 3 Terms and definitions. 3 4 Symbols and abbreviated terms 4 5 Designation 5 6 Pressure rating and design 5 6.1 General. 5 6.2 Tees and headers 5 6.3 Extruded out
8、let headers. 5 7 Information to be supplied by the purchaser. 6 7.1 Principal information 6 7.2 Supplementary information. 6 8 Manufacturing. 7 8.1 Manufacturing procedure specification 7 8.2 Starting material 7 8.3 Fitting manufacture. 8 9 Testing and inspection. 10 9.1 General requirements. 10 9.2
9、 Extent of testing and inspection . 10 9.3 Chemical composition 12 9.4 Mechanical testing 12 9.5 Non-destructive testing 17 9.6 Dimensions 19 9.7 Gauging 20 9.8 Hydrostatic testing 20 10 Inspection document 20 11 Marking. 20 Annex A (normative) Design calculations . 21 Annex B (normative) Proof test
10、. 23 Bibliography . 26 ISO 15590-2:2003(E) iv ISO 2003 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO te
11、chnical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates close
12、ly with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft
13、 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this docume
14、nt may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15590-2 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 2,
15、 Pipeline transportation systems. ISO 15590 consists of the following parts, under the general title Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems: Part 1: Induction bends Part 2: Fittings The following part is under preparation: Part
16、3: Flanges ISO 15590-2:2003(E) ISO 2003 All rights reserved vIntroduction Users of this part of ISO 15590 should be aware that further or differing requirements may be needed for individual applications. This part of ISO 15590 is not intended to inhibit a manufacturer from offering, or the purchaser
17、 from accepting, alternative equipment or engineering solutions for the individual application. This can be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the manufacturer should identify any variations from this part of ISO 15590 and pro
18、vide details. INTERNATIONAL STANDARD ISO 15590-2:2003(E) ISO 2003 All rights reserved 1Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems Part 2: Fittings 1 Scope This part of ISO 15590 specifies the technical delivery conditions for unallo
19、yed or low-alloy steel seamless and welded pipeline fittings for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. This part of ISO 15590 is applicable to welding-end fittings such as elbows, caps, tees, single or multiple extruded headers,
20、reducers, and transition sections made from seamless and welded pipe of unalloyed or low-alloy steels. This part of ISO 15590 specifies three classes of fitting corresponding to increasing quality requirements in accordance with the technical delivery conditions of ISO 3183 for pipe as indicated in
21、Table 1. Table 1 Fitting class and corresponding pipe standard Fitting class Corresponding pipe standard Class A ISO 3183-1 Class B ISO 3183-2 Class C ISO 3183-3 This part of ISO 15590 is not applicable to the selection of the fitting class. This part of ISO 15590 is not applicable to the materials
22、for, or the attachment of, factory-welded extensions. 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 (includi
23、ng any amendments) applies. ISO 148 (all parts), Steel Charpy impact test (V-notch) ISO 377:1997, Steel and steel products Location and preparation of samples and test pieces for mechanical testing ISO 783, Metallic materials Tensile testing at elevated temperature ISO 2566-1, Steel Conversion of el
24、ongation values Part 1: Carbon and low alloy steels ISO 15590-2:2003(E) 2 ISO 2003 All rights reservedISO 3183-1, Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions Part 1: Pipes of requirement class A ISO 3183-2, Petroleum and natural gas industries Steel pi
25、pe for pipelines Technical delivery conditions Part 2: Pipes of requirement class B ISO 3183-3, Petroleum and natural gas industries Steel pipe for pipelines Technical delivery conditions Part 3: Pipes of requirement class C ISO 3834-2, Quality requirements for welding Fusion welding of metallic mat
26、erials Part 2: Comprehensive quality requirements ISO 4885, Ferrous products Heat treatments Vocabulary ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method ISO 6892, Metallic materials Tensile testing at ambient temperature ISO 7438, Metallic materials Bend test ISO/TR 7705:1991
27、, Guidelines for specifying Charpy V-notch impact prescriptions in steel specifications ISO 9712, Non-destructive testing Qualification and certification of personnel ISO 10474, Steel and steel products Inspection documents ISO 11496, Seamless and welded steel tubes for pressure purposes Ultrasonic
28、testing of tube ends for the detection of laminar imperfections ISO 12095, Seamless and welded steel tubes for pressure purposes Liquid penetrant testing ISO 12096, Submerged arc-welded steel tubes for pressure purposes Radiographic testing of the weld seam for the detection of imperfections ISO 136
29、23, Petroleum and natural gas industries Pipeline transportation systems ISO 13664, Seamless and welded steel tubes for pressure purposes Magnetic particle inspection of the tube ends for the detection of laminar imperfections ASME 1)B16.9, Factory-made wrought butt welding fittings ASME B31.8, Gas
30、transmission and distribution piping systems ASME IX, Boiler and pressure vessel code, Section IX Welding and brazing procedures, welders, brazers, and welding and brazing operators ASTM 2)E 112, Standard test methods for determining average grain size ASTM E 709, Standard guide for magnetic particl
31、e examination EN 287-1, Approval testing of welders Fusion welding Part 1: Steels EN 288-3, Specification and approval of welding procedures for metallic materials Part 3: Welding procedure tests for the arc welding of steels 1) American Society of Mechanical Engineers, 345 East 47th Street, NY 1001
32、7-2392, USA 2) American Society for Testing and Materials, 100 Bar Harbor Drive, West Conshohocken, PA 19428-2959, USA ISO 15590-2:2003(E) ISO 2003 All rights reserved 3MSS 3)SP-75, Specification for high test wrought butt welding fittings EFC Publication 16:1995 4) , Guidelines on materials require
33、ments for carbon and low alloy steels for H 2 S containing environments in oil and gas production 3 Terms and definitions For the purposes of this part of ISO 15590 the terms and definitions given in ISO 4885 and the following apply. 3.1 by agreement agreed between manufacturer and purchaser ISO 155
34、90-1:2001 3.2 extrados outer curved section of the elbow NOTE Adapted from ISO 15590-1:2001. 3.3 heat, noun batch of steel prepared in one steel-making process NOTE Adapted from ISO 15590-1:2001. 3.4 intrados inner curved section of the elbow NOTE Adapted from ISO 15590-1:2001. 3.5 manufacturing pro
35、cedure specification MPS document which specifies the process control parameters and the acceptance criteria to be applied for all manufacturing, inspection and testing activities performed during fitting manufacture 3.6 tangent straight section at the ends of the fitting NOTE Adapted from ISO 15590
36、-1:2001. 3.7 test unit fitting or test piece of the same designation, starting material wall thickness, heat, manufacturing procedure specification, and heat treatment condition 3) Manufacturers Standardization Society of the Valve xxx is the specified minimum yield strength requirement in MPa; Z is
37、 the suffix A or B or C, to identify the fitting class for use in non-sour service, or the suffix CS to identify class C fittings for use in sour-service conditions. 6 Pressure rating and design 6.1 General The capability of the fitting to withstand internal pressure shall equal or exceed that of th
38、e matching pipe. The verification of the capability shall be made by calculation and/or proof testing. The calculations shall be made in accordance with Annex A. The proof test procedure shall be as defined in Annex B. Additional requirements on strength design verifications, such as resistance to i
39、nternal pressure under special load cases in accordance with ISO 13623, shall be indicated at the time of enquiry or order. The design calculations and/or results of proof testing shall be available for review at the manufacturers facility. If the SMYS of the fitting material is less than that of th
40、e matching pipe, the minimum thickness of the fitting end shall be increased such that the product of its thickness times its SMYS shall at least equal the product of the specified wall thickness and the SMYS of the matching pipe, in accordance with MSS SP-75. 6.2 Tees and headers Outlet branches in
41、 tees and headers manufactured from seam-welded pipe shall be positioned diametrically opposite the longitudinal weld. When this positioning is not possible, the location shall be decided by agreement. The design and welding for the attachment of guide bars of barred tees shall be decided by agreeme
42、nt prior to manufacture of the tee. 6.3 Extruded outlet headers Extruded outlet headers shall be designed to comply with ASME B31.8. ISO 15590-2:2003(E) 6 ISO 2003 All rights reserved7 Information to be supplied by the purchaser 7.1 Principal information The purchaser shall provide the following inf
43、ormation in the order given below: a) fitting designation; b) required fitting dimensions, including 1) nominal outside diameters, 2) minimum wall thicknesses at the welding ends, 3) radius and type of radius (e.g. long-radius), 4) the angle (for elbows); NOTE Guidance on specific dimensions to spec
44、ify is given in ISO 3545-3. c) end-preparation details; d) whether the purchaser wishes to approve the MPS prior to commencement of manufacturing. 7.2 Supplementary information If applicable, the purchaser shall specify the following supplementary information: a) minimum design temperature; b) maxim
45、um design temperature; c) maximum wall thickness; d) special dimensional requirements; e) requirements for supplementary inspection and testing; f) requirements for gauging and other measurements of dimensions where different from this part of ISO 15590; g) pipeline design standard or design factors
46、 if different from ISO 13623; h) pipeline operating conditions; i) mechanical property requirements at the maximum design temperature; j) requirements for proof, burst, or hydrostatic testing; k) activities for witnessing and approval by purchaser; l) coating or painting requirements; m) marking requirements where different from this part of ISO 15590; n) packaging and shipping instructions; o) third-party inspection organization; p) ISO 10474 standard designation of inspection document required;
