API Spec 5LC-2015 (2020)

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CRA Line Pipe

API SPECIFICATION 5LC

FOURTH EDITION, MARCH 2015

ERRATA, OCTOBER 2015

API MONOGRAM PROGRAM EFFECTIVE DATE: SEPTEMBER 3, 2015

REAFFIRMED, JULY 2020

Special Notes

API 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 API's employees, subcontractors, 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, of any

information or process disclosed in this publication. Neither API nor any of API's employees, subcontractors,

consultants, or other assignees represent that use of this publication would not infringe upon privately owned rights.

API publications may be used by anyone desiring to do so. Every 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 resulting from its use or for the violation of any authorities having jurisdiction with which this publication may

conflict.

API publications are published to facilitate the broad availability of proven, sound engineering and operating

practices. These publications are not intended to obviate the need 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 with 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 products do in fact conform to the applicable API standard.

Classified areas may vary depending on the location, conditions, equipment, and substances involved in any given

situation. 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 document. Sound business,

scientific, engineering, and safety judgment should be used in employing the information contained herein.

electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the

Publisher, API Publishing Services, 200 Massachusetts Avenue, NW, Suite 1100, Washington, DC 20001.

iii

Foreword

This edition of API Specification 5LC supersedes the Third Edition and includes items 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 with 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 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 that 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 appropriate 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 writing to the Director of Standards,

American Petroleum Institute, 200 Massachusetts Avenue, NW, Suite 1100, Washington, DC 20001.

Requests for permission to reproduce or translate all or any part of the material published herein should

also be addressed to the director.

Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A

one-time extension of up to two years may be added to this review cycle. Status of the publication can be

ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API

publications and materials is published annually by API, 200 Massachusetts Avenue, NW, Suite 1100,

Washington, DC 20001.

Suggested revisions are invited and should be submitted to the Standards Department, API, 200

Massachusetts Avenue, NW, Suite 1100, Washington, DC 20001, standards@api.org.

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摘要：

API Spec 5LC-2015 (2020) 是美国石油协会发布的关于耐腐蚀合金（CRA）管线管的最新规范标准，该版本于2015年发布，并在2020年进行了内容确认与更新。本标准适用于石油天然气工业中用于输送腐蚀性介质的无缝或焊接合金管线管，涵盖从材料化学成分、机械性能、制造工艺、无损检测到标记与包装的完整技术要求。遵循 API Spec 5LC-2015 (2020) 可确保管线管在酸性环境（如含H2S、CO2和氯离子）中的抗腐蚀性能与长期使用可靠性，是油气田开发、海底管道及高温高压工况下

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API Spec 5LC-2015 (2020)

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