API SPEC 2Y-2006 Specification for Steel Plates Quenched-and-Tempered for Offshore Structures (FIFTH EDITION Effective June 1 2007)《近海结构用淬火和回火钢板规范.第5版.有效日期 2007年6月》.pdf
《API SPEC 2Y-2006 Specification for Steel Plates Quenched-and-Tempered for Offshore Structures (FIFTH EDITION Effective June 1 2007)《近海结构用淬火和回火钢板规范.第5版.有效日期 2007年6月》.pdf》由会员分享,可在线阅读,更多相关《API SPEC 2Y-2006 Specification for Steel Plates Quenched-and-Tempered for Offshore Structures (FIFTH EDITION Effective June 1 2007)《近海结构用淬火和回火钢板规范.第5版.有效日期 2007年6月》.pdf(26页珍藏版)》请在麦多课文档分享上搜索。
1、Specification for Steel Plates, Quenched-and-Tempered, for Offshore StructuresAPI SPECIFICATION 2YFIFTH EDITION, DECEMBER 2006EFFECTIVE DATE: JUNE 1, 2007REAFFIRMED, JANUARY 2012Specification for Steel Plates, Quenched-and-Tempered, for Offshore StructuresUpstream SegmentAPI SPECIFICATION 2YFIFTH ED
2、ITION, DECEMBER 2006EFFECTIVE DATE: JUNE 1, 2007REAFFIRMED, JANUARY 2012SPECIAL NOTESAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.Neither API nor any of APIs employees, s
3、ubcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use,
4、 of any information or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors, con-sultants, or other assignees represent that use of this publication would not infringe upon pri-vately owned rights.API publications may be used by anyone desiring to do so. Every
5、 effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage re
6、sulting from its use or for the violation of any authorities having jurisdiction with which this publi-cation may conflict.API publications are published to facilitate the broad availability of proven, sound engineer-ing and operating practices. These publications are not intended to obviate the nee
7、d for applying sound engineering judgment regarding when and where these publications should be utilized. The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance wit
8、h the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard. API does not represent, warrant, or guarantee that such prod-ucts do in fact conform to the applicable API standard.All rights reserved. No part of this work may b
9、e reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, N.W., Washington, D.C. 20005.Copyright 2006 Amer
10、ican Petroleum InstituteFOREWORDThis specification is under the jurisdiction of the API Subcommittee on Standardization of Offshore Structures.The purpose of this specification is to provide standards for the purchase of quenched-and-tempered steel plate suitable for use in welded offshore structure
11、s.Nothing in this specification should be interpreted as indicating a preference by the commit-tee for any material or process. In the selection of materials and processes, the purchaser must be guided by his experience and by the service for which the plate is intended.Changes from the previous edi
12、tion are noted by bars in the margins.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the specification.Sugge
13、sted revisions are invited and should be submitted to the Standards and Publications Department, API, 1220 L Street, NW, Washington, DC 20005, standardsapi.org.iiiv CONTENTS 1 SCOPE. 1 1.1 Coverage 1 1.2 Post Manufacturing Heating . 1 1.3 Preproduction Qualification 2 2 REFERENCED DOCUMENTS 2 3 GENE
14、RAL REQUIREMENTS FOR DELIVERY. 2 4 MANUFACTURING . 3 4.1 Melting. 3 4.2 Heat Treatment 3 5 CHEMICAL REQUIREMENTS . 3 6 MECHANICAL REQUIREMENTS . 5 7 NOTCH TOUGHNESS REQUIREMENTS . 5 8 MARKING 6 APPENDIX A SUPPLEMENTARY REQUIREMENTS. 7 APPENDIX B SUGGESTIONS FOR ORDERING API 2Y SPEC STEEL PLATE 11 AP
15、PENDIX C API MONOGRAM 13 Tables 1 Chemical Requirements 4 2 Carbon Equivalent Maximums. 4 3 Tensile Requirements 5 4 Notch Toughness Requirements Charpy V-Notch Testing . 5 S2-1 Notch Toughness Requirements at Lower Temperatures Drop-Weight Testing S2-1 No-Break at 67F (55C) or Charpy Impact Testing
16、 . 8 1 Specification for Steel Plates, Quenched-and-Tempered, for Offshore Structures 1 Scope 1.1 COVERAGE This specification covers two grades of high strength steel plate for use in welded construction of offshore structures, in selected critical portions which must resist impact, plastic fatigue
17、loading, and lamellar tearing. Grade 50 is covered in thicknesses up to 6 in. (150 mm) inclusive, and Grade 60 is covered in thicknesses up to 4 in. (100 mm) inclusive. 1.1.1 It is intended that steel produced to Grade 50 of the basic API Spec 2Y, without Supplementary Requirements, be at least equi
18、valent in minimum performance and, therefore, in service application, to the corresponding grades listed in Sections 5 through 7 of API Spec 2H and API Spec 2W. 1.1.2 API Spec 2Y steels are intended for fabrication primarily by cold-forming and welding. The welding procedure is of fundamental import
19、ance and it is presumed that procedures will be suitable for the steels and their intended service. Because of the characteristic high YS/TS ratio of quenched-and-tempered steels, users may want to consider welding consumables which avoid undermatched weld metal. Conversely, the steels should be ame
20、nable to fabrication and welding under shipyard and offshore conditions. 1.2 POST MANUFACTURING HEATING 1.2.1 Due to the inherent characteristics of quenched-and-tempered material, plates manufactured to this Specification cannot be formed or postweld heat treated at temperatures above the tempering
21、 temperature used during manufacture without some risk of sustaining irreversible and significant losses in strength and toughness. If warm-forming is to be required, the tensile and notch toughness properties of the finished component shall be verified and the properties shall conform to the requir
22、ements of the specification. The plates may be post-weld heat treated at a temperature higher than that used during manufacture, providing the test coupons are subjected to a thermal cycle to simulate such fabrication operations, as described in Supplementary Requirement S9. Verification or simulati
23、on is not necessary for heating at temperatures not exceeding 400F (205C). 1.2.2 The primary use of these steels is in tubular joints, stiffened plate construction, and other intersections where portions of the plates will be subject to tension in the thickness direction (Z-direction). Supplementary
24、 Requirement S4 provides for through-thickness (Z-direction) testing of the plates by the manufacturer and specifies limits for acceptance. Supplementary Requirement S1 provides for ultrasonic examination of the plates by the manufacturer and specifies limits for acceptance. 1.2.3 For applications w
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