AWS D14.4 PDF

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To learn more, view our Privacy Policy. Log In Sign Up. AWS D Requirements are also included for modification, weld repair, and postweld treatments of new and existing weldments. Filler metal and welding procedure guidelines are recommended for the applicable base metals, which are limited to carbon and low-alloy steels.

Allowable unit stresses are provided for weld metal and base metal for various cyclically loaded joint designs. When AWS standards are either incorporated in, or made part of, documents that are included in federal or state laws and regulations, or the regulations of other governmental bodies, their provisions carry the full legal authority of the statute.

In such cases, any changes in those AWS standards must be approved by the governmental body having statutory jurisdiction before they can become a part of those laws and regulations. In all cases, these standards carry the full legal authority of the contract or other document that invokes the AWS standards.

Where this contractual relationship exists, changes in or deviations from requirements of an AWS standard must be by agreement between the contracting parties. All rights reserved Printed in the United States of America AWS American National Standards are developed through a consensus standards development process that brings together volunteers representing varied viewpoints and interests to achieve consensus. While AWS administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in its standards.

AWS disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whether spe- cial, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on this standard. AWS also makes no guaranty or warranty as to the accuracy or completeness of any information published herein.

In issuing and making this standard available, AWS is not undertaking to render professional or other services for or on behalf of any person or entity.

Nor is AWS undertaking to perform any duty owed by any person or entity to someone else. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. This standard may be superseded by the issuance of new editions. Users should ensure that they have the latest edition. Publication of this standard does not authorize infringement of any patent or trade name.

Users of this standard accept any and all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infringement of any patent or product trade name resulting from the use of this standard. Finally, AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.

On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when discovered, are posted on the AWS web page www. Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request, in writ- ing, to the Managing Director, Technical Services Division, American Welding Society, N.

However, such opinions represent only the personal opinions of the particular individuals giving them. These individuals do not speak on behalf of AWS, nor do these oral opinions constitute official or unofficial opinions or interpreta- tions of AWS. In addition, oral opinions are informal and should not be used as a substitute for an official interpretation.

It must be reviewed every five years, and if not revised, it must be either reaffirmed or withdrawn. Comments recommendations, additions, or deletions and any pertinent data that may be of use in improving this standard are required and should be addressed to AWS Headquarters.

Procedures for appeal of an adverse decision concerning all such comments are provided in the Rules of Operation of the Technical Activities Committee. Cameron Crenlo, Incorporated P. Hemzacek Consultant B. Horn Consultant D. Landon Vermeer Manufacturing Company T. Mishler Consultant R. Nelson Northrop Grumman A. Palzkill Consultant C. Svekric Welding Consultants, Incorporated E.

Zegers R. Nelson, Chair Northrop Grumman P. Seum Sheedy Drayage Company W. This specification was prepared for the overhead crane and material handling industries to continue the advancement of welding and to increase product reliability. The participating committee, representing manufacturers, users, and government, joined in the preparation of this document.

This specification will be reviewed periodically to assure its success in serving all parties concerned with its provi- sions. Revisions will be issued when warranted. Comments and suggestions for the improvement of this standard are welcome. Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request, in writing, to the Managing Director, Technical Services Division, American Welding Society. A formal reply will be issued after it has been reviewed by the appropriate personnel following established procedures see Annex C.

Scope and General Provisions Normative References Base Metals Allowable Stresses Weld Joint Design Processes and Filler Metals Part D—Welding Operator Qualification Weld Quality and Inspection Field Weld Repair and Modification Repair and Correction of Defects Mandatory Annex Scope and General Provisions addressed herein. Safety and health information is avail- able from other sources, including, but not limited to, 1.

Some used in the manufacture of cranes for industrial, mill, other sources of safety and health information can be power house, and nuclear facilities. Furthermore, the found in Annex D. The engineering 3 Providing written welding procedures; drawings shall specify the joint detail, type, and size of 4 Recording results of all procedure and welder weld.

This specification is not intended for application to qualification tests; construction- or crawler-type cranes. All provisions of this specification are equally appli- cable to the strengthening and repairing of existing 1.

Acceptance shall be as agreed overhead cranes and material handling equipment as upon between the Manufacturer and the Owner pur- described above. The fundamental premise of this specification is This specification makes use of both U.

The tions. Acceptance criteria for production welds different measurements may not be exact equivalents; therefore from those stated in this specification may be used for a each system shall be used independently of the other particular application, provided they are suitably docu- without combining in any way.

The specification with mented by the proposer and approved by the Engineer. Customary Units. The These alternate acceptance criteria can be based upon specification D The latter are shown evaluation of suitability for service using past experi- in appropriate columns in tables and figures or within ence, experimental evidence or engineering analysis brackets [ ].

Detailed dimensions on figures are in considering material type, service-load effects, and envi- inches. A separate tabular form that relates the U. Customary Units with SI Units may be used in tables and figures. Manufacturer refers to the organization responsible for the Safety and health issues and concerns are beyond the performance of the work covered by this specification see def- scope of this standard, and therefore are not fully inition in Section 3.

Welding symbols used on 13 AWS A5. Special requirements shall be fully Gases explained by added notes or details. Customary Units only cal Testing of Welds. When there is a conflict between 17 AWS B4. Normative References ness, Waviness, and Lay The following standards contain provisions which, through reference in this text, constitute provisions of 2.

Box , Arlingate Society, N. Lane, Columbus, OH Definitions tion, 2 steels not listed in Table 1, or 3 base metals not covered by accepted national specifications, shall be The terms that follow are defined for the purposes of established by qualification, except as provided for in this specification.

Other terms used in this specification 4. The responsible technical authority. When Table 1 or the base Manufacturer. The organization responsible for the per- metal specification does not establish the minimum ten- formance of the work covered by this specification. The person, company, or agency that purchases for design purposes. The documentation may be in the the equipment. In the establishment of minimum tensile and principal structural weldments. Those weldments that yield strengths for design purposes, due regard shall be carry the main working loads during normal operations.

FISICA UNIVERSITARIA SEARS ZEMANSKY ED 12 PDF

AWS D14.4 D14.4M

AWS D Abstract This specification establishes common acceptance criteria for classifying and applying carbon and low-alloy steel welded joints used in the manufacture of machines and equipment. It also covers weld joint design, workmanship, quality control requirements and procedures, welding operator and welding procedure qualification, weld joint inspection visual, radiographic, ultrasonic, magnetic particle, liquid penetrant , repair of weld defects, and heat treatment. Photocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in any form, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner. When AWS American National Standards are either incorporated in, or made part of, documents that are included in federal or state laws and regulations, or the regulations of other governmental bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWS standards must be approved by the governmental body having statutory jurisdiction before they can become a part of those laws and regulations.

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