1、AN AMERICAN NATIONAL STANDARD ASME B16.49-2017 (Revision of ASME B16.49-2012) Factory-Made, Wrought Steel, Buttwelding Induction Bends for Transportation and Distribution SystemsASME B16.49-2017 (Revision of ASME B16.49-2012) Factory-Made, Wrought Steel, Buttwelding Induction Bends for Transportatio
2、n and Distribution Systems AN AMERICAN NATIONAL STANDARD xDate of Issuance: December 29, 2017 The next edition of this Standard is scheduled for publication in 2022. ASME issues writt en replies to inquiries concerning interpre tations of technical aspects of this Standard. Periodically certain acti
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12、AL ENGINEERS All rights reserved Printed in U.S.A.CONTENTS Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Correspondence With the B16 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14、. . . . . . . . . . . . . . . . . . . . . . . . . . viii List of Changes in Record Number Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix 1 Scope and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、 . . . . . . . . . . . . . 1 2 Pressure Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、 . . 2 4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 Material f
17、or Bends Containing Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Chemical Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 Material Properties . . . . . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 Heat Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 10 Qualification Bend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、. . . . . . . . . . . . . . . . . . . . . . 6 11 Test Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 12 Dimensional Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . 8 13 Inspection of Production Bends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 14 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SR15 Supplementary Req
21、uirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Mandatory Appendix I References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Nonmandatory Appendices A Quality S
22、ystem Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 B Induction Bend Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figures 1 Bend Dimensional Terms . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Test Specimen Locations and Orientations Longitudinal Seam . . . . . . . . . . . . . . . . . . . . . . . 6 3 Test Specimen Locations and Orientations Helical Seam . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . 7 4 Measurement of Bend Angle and Out-of- Squareness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Tables 1 Tensile Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Maximum Limits o
25、f Chemical Elements That May Be Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Limits on Essential Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 iiiFOREWORD In 1993, members of the ASME B31.8 Code for Pressure Piping,
26、Gas Transmission and Distribution Piping Systems Committee approached the B16 Committee to develop a standard that covers pipeline bends produced by the induction bending process. Subcommittee F reviewed the request and identified that no current specification covered this product to the satisfac- t
27、ion of the users. It was also determined that this Standard would need to be more performance-based than most other B16 standards, which are normally product standards with set dimensional requirements. At the 1994 meeting of Subcommittee F, the project to develop a standard was accepted. Through th
28、e cooperation of producers and users familiar with the process, and with approval by the Standards Committee and ASME, ASME B16.49- 2000 received approval as an American National Standard on April 25, 2000. In 2005, the Committee undertook a general review of this document. Based on the usage of thi
29、s Standard over the last 5 years, a number of revisions, clarifications, and additions were determined to be needed to make the document more user friendly. Some requirements were dropped, revised, and clarified to reflect the desires of the users and manufacturers. The reference data were updated a
30、nd the interpretation section was removed from the Standard. These revisions were incorporated into the B16.49-2007 edition. In 2012, the Committee reviewed this document and made revisions to requirements in hardness testing and updated the references found in Mandatory Appendix I. ASME B16.49-2012
31、 was approved by the American National Standards Institute (ANSI) on October 22, 2012. In this 2017 Edition, provisions have been made to update verbiage and readings. Following the approval by the ASME B16 Standards Committee, approval as an American National Standard was given by ANSI on September
32、 7, 2017, with the new designation ASME B16.49-2017. ivASME B16 COMMITTEE Standardization of Valves, Flanges, Fittings, and Gaskets (The following is the roster of the Committee at the time of approval of this Standard.) STANDARDS COMMITTEE OFFICERS R. Bojarczuk, Chair C. Davila, Vice Chair C. R. Ra
33、mcharran, Secretary STANDARDS COMMITTEE PERSONNEL A. Appleton, Alloy Stainless Products Co., Inc. J. E. Barker, Dezurik Water Controls K. Barron, Ward Manufacturing D. C. Bayreuther, Metso Automation W. Bedesem, Consultant R. Bojarczuk, ExxonMobil Research and Engineering Co. A. Cheta, Qatar Shell G
34、TL M. Clark, NIBCO, Inc. G. A. Cuccio, Capitol Manufacturing Co. J. D Avanzo, Fluoroseal Valves C. Davila, Crane Energy K. S. Felder, Valero Energy D. Frikken, Becht Engineering Co. D. Hunt, Jr., Fastenal G. Jolly, Samshin Ltd. E. J. Lain, Exelon Nuclear T. A. McMahon, Emerson Process Management R.
35、C. Merrick, Fluor Enterprises M. Nayyar, NICE W. H. Patrick, The Dow Chemical Co. D. Rahoi, Consultant C. R. Ramcharran, The American Society of Mechanical Engineers D. F. Reid, VSP Technologies R. Schmidt, Canadoil J. Tucker, Flowserve F. Volgstadt, Volgstadt however, they should not contain proprietary names or information. Requests that are not in the format described above may be rewritten in the appropriate format by the Committee prior to being answered, which may inadvertently change the intent of the original request. vi
