1、CRA Line PipeAPI SPECIFICATION 5LCFOURTH EDITION,MARCH 2015ERRATA,OCTOBER 2015API MONOGRAM PROGRAM EFFECTIVE DATE:SEPTEMBER 3,2015REAFFIRMED,JULY 2020Special NotesAPI publications necessarily address problems of a general nature.With respect to particular circumstances,local,state,and federal laws a
2、nd regulations should be reviewed.Neither API nor any of APIs employees,subcontractors,consultants,committees,or other assignees make anywarranty or representation,either express or implied,with respect to the accuracy,completeness,or usefulness of theinformation contained herein,or assume any liabi
3、lity or responsibility for any use,or the results of such use,of anyinformation or process disclosed in this publication.Neither API nor any of APIs employees,subcontractors,consultants,or other assignees represent that use of this publication would not infringe upon privately owned rights.API publi
4、cations may be used by anyone desiring to do so.Every effort has been made by the Institute to assure theaccuracy and reliability of the data contained in them;however,the Institute makes no representation,warranty,orguarantee in connection with this publication and hereby expressly disclaims any li
5、ability or responsibility for loss ordamage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to facilitate the broad availability of proven,sound engineering and operatingpractices.These publicat
6、ions are not intended to obviate the need for applying sound engineering judgmentregarding when and where these publications should be utilized.The formulation and publication of API publicationsis not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equi
7、pment or materials in conformance with the marking requirements of an API standardis solely responsible for complying with all the applicable requirements of that standard.API does not represent,warrant,or guarantee that such products do in fact conform to the applicable API standard.Classified area
8、s may vary depending on the location,conditions,equipment,and substances involved in any givensituation.Users of this Specification should consult with the appropriate authorities having jurisdiction.Users of this Specification should not rely exclusively on the information contained in this documen
9、t.Sound business,scientific,engineering,and safety judgment should be used in employing the information contained herein.All rights reserved.No part of this work may be reproduced,translated,stored in a retrieval system,or transmitted by any means,electronic,mechanical,photocopying,recording,or othe
10、rwise,without prior written permission from the publisher.Contact the Publisher,API Publishing Services,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001.Copyright 2015 American Petroleum Instituteiii Foreword This edition of API Specification 5LC supersedes the Third Edition and includes i
11、tems approved by letter ballot through January 2014.Portions of this publication have been changed from the previous edition.Substantive changes are indicated with gray shading and blue font,but API makes no warranty as to the accuracy of such notations.Nonsubstantive changes will not be indicated w
12、ith shading and colored font.Nothing contained in any API publication is to be construed as granting any right,by implication or otherwise,for the manufacture,sale,or use of any method,apparatus,or product covered by letters patent.Neither should anything contained in the publication be construed as
13、 insuring anyone against liability for infringement of letters patent.The verbal forms used to express the provisions in this recommended practice are as follows:the term“shall”denotes a minimum requirement in order to conform to the recommended practice;the term“should”denotes a recommendation or t
14、hat which is advised but not required in order to conform to the recommended practice;the term“may”is used to express permission or a provision that is optional;and the term“can”is used to express possibility or capability.This document was produced under API standardization procedures that ensure a
15、ppropriate notification and participation in the developmental process and is designated as an API standard.Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in
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